AVAHO

The combination of ribociclib (Kisqali) and endocrine therapy has already been shown to yield a significant survival advantage for women with metastatic, hormone receptor–positive, HER2-negative (HR+/HER2–) breast cancer. Now the same combination has also shown benefit in early-stage HR+/HER2– breast tumors.

The new results come from an interim analysis of the phase 3, randomized NATALEE trial, which is comparing maintenance therapy with the (CDK4/6 inhibitor ribociclib plus endocrine therapy with an aromatase inhibitor to endocrine therapy alone.

At a median follow-up of 27.7 months, the 3-year invasive disease–free survival (IDFS) rate was 90.4% for patients who received the combination, compared with 87.1% for patients who received endocrine therapy alone.

This difference translates into a 25% relative reduction in risk for recurrence with the addition of ribociclib, said principal investigator Dennis J. Slamon, MD, PhD, from the UCLA Jonsson Comprehensive Cancer Center, Los Angeles.

“The NATALEE results, in summary, do support this as a new treatment of choice available to physicians and patients for this broad population of patients with stage II or stage III hormone receptor–positive, HER2-negative disease in early breast cancer,” he said.

Dr. Slamon was speaking at a media briefing held prior to the annual meeting of the American Society of Clinical Oncology, where the results were presented
 

‘Early but impressive’

“Today, Dr. Slamon has shown us early but impressive data demonstrating a significant reduction in the risk of recurrence as defined by an improvement of invasive disease–free survival for patients with high-risk, node-positive and node-negative hormone receptor–positive, HER2-negative early breast cancer,” commented ASCO expert Rita Nanda, MD, director of the breast oncology program at the University of Chicago.

“We know that a substantial proportion of patients with early-stage hormone receptor–positive breast [cancer] can go on to recur,” Dr. Nanda continued. “These recurrences can be quite delayed, and for our patients with node-negative disease, to this point, we haven’t seen any improvements with the addition of a CDK4/6 inhibitor to endocrine therapy for early-stage breast cancer. Dr Slamon has also shown us that ribociclib in the context of the NATALEE trial is effective, it was well tolerated, and I do expect that these trial results will change practice.”

In a comment, Sylvia Adams, MD, a medical oncologist who specializes in breast cancer at the NYU Langone Perlmutter Cancer Center, New York, said she is comfortable with using a CDK4/6 inhibitor such as ribociclib or abemaciclib (Verzenio) in the adjuvant setting for patients with early, localized breast cancer.

She noted, however, that to date the absolute benefit of the combination over endocrine therapy alone has been modest, at 3.3%, but that the difference may be important to many patients who feel that they need to do everything they can to prevent disease recurrence.

“I’m really looking forward to the quality of life data, because it’s certainly known that any of these CDK4/6 inhibitors may add a bit of fatigue, and while there were no unexpected safety signals [in NATALEE], we know that there are some GI [gastrointestinal] effects with this therapy, as well as joint pain,” she said. “Joint pain is a little tricky, because the patients are also getting aromatase inhibitors, which can cause joint pain.”

In addition, premenopausal women in the study also received goserelin, an ovarian suppressor that triggers menopause, which is also associated with arthralgias, Dr. Adams said.

Dr. Adams and Dr. Nanda both noted that the addition of ribociclib to endocrine therapy increases the treatment burden for patients because it requires a commitment of at least 3 years and more frequent monitoring, especially in the first few months of therapy, compared with endocrine therapy alone.
 

Study details

The combination of ribociclib and standard of care endocrine therapy was the first to show an improvement in overall survival among women with metastatic HR+/HER2– breast cancer.

To see whether the combination could also benefit patients with early breast cancer, the investigators conducted NATALEE. They enrolled premenopausal and postmenopausal women and also men with HR+/HER2– breast cancer. Cases ranged from stage IIA (with either no nodal involvement with additional risk factors or with one to three involved axillary lymph nodes) to stage IIB-III disease, based on American Joint Committee on Cancer staging.

Patients who had previously received neoadjuvant or adjuvant endocrine therapy were accepted into the trial if the therapy had been started within 1 year of randomization.

The patients were stratified by age, menopausal status, disease stage, prior chemotherapy status, and geographic region. They were randomly assigned to receive either ribociclib 400 mg per day for 3 weeks, then were given 1 week off each cycle for 3 years plus endocrine therapy with either letrozole 2.5 mg/day or anastrozole 1 mg/day for at least 5 years, or to endocrine therapy alone. Men and premenopausal women also received goserelin.

Dr. Slamon noted that the 400-mg dose of ribociclib is lower than the recommended starting dose of 600 mg for metastatic disease. They chose the lower dose to allow longer duration of therapy, with a goal of achieving optimal disease suppression by driving tumor cells into irreversible senescence with less side effects.

A total of 2,549 patients were randomly assigned to receive the combination; 2,552 patients received endocrine therapy alone.

At the data cutoff on Jan. 11, 2023, after the prespecified minimum number of IDFS events had occurred, 189 patients in the ribociclib arm experienced recurrence, compared with 237 patients in the endocrine therapy–only arm.

As noted, 3-year IDFS rates were 90.4% with ribociclib and 87.1% with endocrine therapy alone, which translates to a hazard ratio of 0.748 in favor of the combination (P = .0014).

The benefit of ribociclib was generally consistent across subgroups, including node-negative patients, but there were too few patients in this subgroup for the differences to reach statistical significance, Dr. Slamon said.
 

Safety

The most commonly reported adverse event in the endocrine therapy–alone arm were joint pain and hot flashes

The most common adverse events with ribociclib included neutropenia and joint pain. Rates of gastrointestinal adverse events and fatigue, typical of CDK4/6 inhibitors, were relatively low in this study.

Dr. Slamon compared the rates of neutropenia with ribociclib in this trial to those in pooled data from the MONALEESA series of trials, in which ribociclib was delivered at a 600-mg dose. Grade 3 or 4 neutropenia occurred in 44% of patients in NATALEE, compared with 60% of patients in the MONALEESA trials.

In the ribociclib arm, 5.2% of patients experienced prolongation of the QT interval, compared with 1.2% of patients in the endocrine therapy–alone arm. No cases of torsades des pointes or problematic rhythm disturbances were observed, Dr. Slamon said.

“As frequently happens when we have these lovely, large, phase 3 registration trials but with some restriction in eligibility, when you get out to real-world practice, we don’t know what will happen in women who are on antiarrhythmics and if they’ll have a higher incidence of the QT elongation; they just weren’t included in the study. So it sounds like we’ll have to be paying attention to that,” commented briefing moderator Julie R. Gralow, MD, FACP, FASCO, chief medical officer and executive vice president of ASCO.

The study was funded by Novartis. Dr. Slamon has a leadership position with 1200 Pharma, Biomarin, and Torl Biotherapeutics, a consulting/advisory role for Novartis, and has received honoraria, research funding, and travel expenses from Novartis and others. Multiple coauthors reported financial relationships with Novartis and others. Dr. Nanda has had consulting/advisory roles with and has received institutional research funding from several companies, not including Novartis. Dr. Adams has participated on an advisory board for Cogent Biosciences and her institution has received research funding from various companies.

A version of this article first appeared on Medscape.com.

The combination of ribociclib (Kisqali) and endocrine therapy has already been shown to yield a significant survival advantage for women with metastatic, hormone receptor–positive, HER2-negative (HR+/HER2–) breast cancer. Now the same combination has also shown benefit in early-stage HR+/HER2– breast tumors.

The new results come from an interim analysis of the phase 3, randomized NATALEE trial, which is comparing maintenance therapy with the (CDK4/6 inhibitor ribociclib plus endocrine therapy with an aromatase inhibitor to endocrine therapy alone.

At a median follow-up of 27.7 months, the 3-year invasive disease–free survival (IDFS) rate was 90.4% for patients who received the combination, compared with 87.1% for patients who received endocrine therapy alone.

This difference translates into a 25% relative reduction in risk for recurrence with the addition of ribociclib, said principal investigator Dennis J. Slamon, MD, PhD, from the UCLA Jonsson Comprehensive Cancer Center, Los Angeles.

“The NATALEE results, in summary, do support this as a new treatment of choice available to physicians and patients for this broad population of patients with stage II or stage III hormone receptor–positive, HER2-negative disease in early breast cancer,” he said.

Dr. Slamon was speaking at a media briefing held prior to the annual meeting of the American Society of Clinical Oncology, where the results were presented
 

‘Early but impressive’

“Today, Dr. Slamon has shown us early but impressive data demonstrating a significant reduction in the risk of recurrence as defined by an improvement of invasive disease–free survival for patients with high-risk, node-positive and node-negative hormone receptor–positive, HER2-negative early breast cancer,” commented ASCO expert Rita Nanda, MD, director of the breast oncology program at the University of Chicago.

“We know that a substantial proportion of patients with early-stage hormone receptor–positive breast [cancer] can go on to recur,” Dr. Nanda continued. “These recurrences can be quite delayed, and for our patients with node-negative disease, to this point, we haven’t seen any improvements with the addition of a CDK4/6 inhibitor to endocrine therapy for early-stage breast cancer. Dr Slamon has also shown us that ribociclib in the context of the NATALEE trial is effective, it was well tolerated, and I do expect that these trial results will change practice.”

In a comment, Sylvia Adams, MD, a medical oncologist who specializes in breast cancer at the NYU Langone Perlmutter Cancer Center, New York, said she is comfortable with using a CDK4/6 inhibitor such as ribociclib or abemaciclib (Verzenio) in the adjuvant setting for patients with early, localized breast cancer.

She noted, however, that to date the absolute benefit of the combination over endocrine therapy alone has been modest, at 3.3%, but that the difference may be important to many patients who feel that they need to do everything they can to prevent disease recurrence.

“I’m really looking forward to the quality of life data, because it’s certainly known that any of these CDK4/6 inhibitors may add a bit of fatigue, and while there were no unexpected safety signals [in NATALEE], we know that there are some GI [gastrointestinal] effects with this therapy, as well as joint pain,” she said. “Joint pain is a little tricky, because the patients are also getting aromatase inhibitors, which can cause joint pain.”

In addition, premenopausal women in the study also received goserelin, an ovarian suppressor that triggers menopause, which is also associated with arthralgias, Dr. Adams said.

Dr. Adams and Dr. Nanda both noted that the addition of ribociclib to endocrine therapy increases the treatment burden for patients because it requires a commitment of at least 3 years and more frequent monitoring, especially in the first few months of therapy, compared with endocrine therapy alone.
 

Study details

The combination of ribociclib and standard of care endocrine therapy was the first to show an improvement in overall survival among women with metastatic HR+/HER2– breast cancer.

To see whether the combination could also benefit patients with early breast cancer, the investigators conducted NATALEE. They enrolled premenopausal and postmenopausal women and also men with HR+/HER2– breast cancer. Cases ranged from stage IIA (with either no nodal involvement with additional risk factors or with one to three involved axillary lymph nodes) to stage IIB-III disease, based on American Joint Committee on Cancer staging.

Patients who had previously received neoadjuvant or adjuvant endocrine therapy were accepted into the trial if the therapy had been started within 1 year of randomization.

The patients were stratified by age, menopausal status, disease stage, prior chemotherapy status, and geographic region. They were randomly assigned to receive either ribociclib 400 mg per day for 3 weeks, then were given 1 week off each cycle for 3 years plus endocrine therapy with either letrozole 2.5 mg/day or anastrozole 1 mg/day for at least 5 years, or to endocrine therapy alone. Men and premenopausal women also received goserelin.

Dr. Slamon noted that the 400-mg dose of ribociclib is lower than the recommended starting dose of 600 mg for metastatic disease. They chose the lower dose to allow longer duration of therapy, with a goal of achieving optimal disease suppression by driving tumor cells into irreversible senescence with less side effects.

A total of 2,549 patients were randomly assigned to receive the combination; 2,552 patients received endocrine therapy alone.

At the data cutoff on Jan. 11, 2023, after the prespecified minimum number of IDFS events had occurred, 189 patients in the ribociclib arm experienced recurrence, compared with 237 patients in the endocrine therapy–only arm.

As noted, 3-year IDFS rates were 90.4% with ribociclib and 87.1% with endocrine therapy alone, which translates to a hazard ratio of 0.748 in favor of the combination (P = .0014).

The benefit of ribociclib was generally consistent across subgroups, including node-negative patients, but there were too few patients in this subgroup for the differences to reach statistical significance, Dr. Slamon said.
 

Safety

The most commonly reported adverse event in the endocrine therapy–alone arm were joint pain and hot flashes

The most common adverse events with ribociclib included neutropenia and joint pain. Rates of gastrointestinal adverse events and fatigue, typical of CDK4/6 inhibitors, were relatively low in this study.

Dr. Slamon compared the rates of neutropenia with ribociclib in this trial to those in pooled data from the MONALEESA series of trials, in which ribociclib was delivered at a 600-mg dose. Grade 3 or 4 neutropenia occurred in 44% of patients in NATALEE, compared with 60% of patients in the MONALEESA trials.

In the ribociclib arm, 5.2% of patients experienced prolongation of the QT interval, compared with 1.2% of patients in the endocrine therapy–alone arm. No cases of torsades des pointes or problematic rhythm disturbances were observed, Dr. Slamon said.

“As frequently happens when we have these lovely, large, phase 3 registration trials but with some restriction in eligibility, when you get out to real-world practice, we don’t know what will happen in women who are on antiarrhythmics and if they’ll have a higher incidence of the QT elongation; they just weren’t included in the study. So it sounds like we’ll have to be paying attention to that,” commented briefing moderator Julie R. Gralow, MD, FACP, FASCO, chief medical officer and executive vice president of ASCO.

The study was funded by Novartis. Dr. Slamon has a leadership position with 1200 Pharma, Biomarin, and Torl Biotherapeutics, a consulting/advisory role for Novartis, and has received honoraria, research funding, and travel expenses from Novartis and others. Multiple coauthors reported financial relationships with Novartis and others. Dr. Nanda has had consulting/advisory roles with and has received institutional research funding from several companies, not including Novartis. Dr. Adams has participated on an advisory board for Cogent Biosciences and her institution has received research funding from various companies.

A version of this article first appeared on Medscape.com.

The combination of ribociclib (Kisqali) and endocrine therapy has already been shown to yield a significant survival advantage for women with metastatic, hormone receptor–positive, HER2-negative (HR+/HER2–) breast cancer. Now the same combination has also shown benefit in early-stage HR+/HER2– breast tumors.

The new results come from an interim analysis of the phase 3, randomized NATALEE trial, which is comparing maintenance therapy with the (CDK4/6 inhibitor ribociclib plus endocrine therapy with an aromatase inhibitor to endocrine therapy alone.

At a median follow-up of 27.7 months, the 3-year invasive disease–free survival (IDFS) rate was 90.4% for patients who received the combination, compared with 87.1% for patients who received endocrine therapy alone.

This difference translates into a 25% relative reduction in risk for recurrence with the addition of ribociclib, said principal investigator Dennis J. Slamon, MD, PhD, from the UCLA Jonsson Comprehensive Cancer Center, Los Angeles.

“The NATALEE results, in summary, do support this as a new treatment of choice available to physicians and patients for this broad population of patients with stage II or stage III hormone receptor–positive, HER2-negative disease in early breast cancer,” he said.

Dr. Slamon was speaking at a media briefing held prior to the annual meeting of the American Society of Clinical Oncology, where the results were presented
 

‘Early but impressive’

“Today, Dr. Slamon has shown us early but impressive data demonstrating a significant reduction in the risk of recurrence as defined by an improvement of invasive disease–free survival for patients with high-risk, node-positive and node-negative hormone receptor–positive, HER2-negative early breast cancer,” commented ASCO expert Rita Nanda, MD, director of the breast oncology program at the University of Chicago.

“We know that a substantial proportion of patients with early-stage hormone receptor–positive breast [cancer] can go on to recur,” Dr. Nanda continued. “These recurrences can be quite delayed, and for our patients with node-negative disease, to this point, we haven’t seen any improvements with the addition of a CDK4/6 inhibitor to endocrine therapy for early-stage breast cancer. Dr Slamon has also shown us that ribociclib in the context of the NATALEE trial is effective, it was well tolerated, and I do expect that these trial results will change practice.”

In a comment, Sylvia Adams, MD, a medical oncologist who specializes in breast cancer at the NYU Langone Perlmutter Cancer Center, New York, said she is comfortable with using a CDK4/6 inhibitor such as ribociclib or abemaciclib (Verzenio) in the adjuvant setting for patients with early, localized breast cancer.

She noted, however, that to date the absolute benefit of the combination over endocrine therapy alone has been modest, at 3.3%, but that the difference may be important to many patients who feel that they need to do everything they can to prevent disease recurrence.

“I’m really looking forward to the quality of life data, because it’s certainly known that any of these CDK4/6 inhibitors may add a bit of fatigue, and while there were no unexpected safety signals [in NATALEE], we know that there are some GI [gastrointestinal] effects with this therapy, as well as joint pain,” she said. “Joint pain is a little tricky, because the patients are also getting aromatase inhibitors, which can cause joint pain.”

In addition, premenopausal women in the study also received goserelin, an ovarian suppressor that triggers menopause, which is also associated with arthralgias, Dr. Adams said.

Dr. Adams and Dr. Nanda both noted that the addition of ribociclib to endocrine therapy increases the treatment burden for patients because it requires a commitment of at least 3 years and more frequent monitoring, especially in the first few months of therapy, compared with endocrine therapy alone.
 

Study details

The combination of ribociclib and standard of care endocrine therapy was the first to show an improvement in overall survival among women with metastatic HR+/HER2– breast cancer.

To see whether the combination could also benefit patients with early breast cancer, the investigators conducted NATALEE. They enrolled premenopausal and postmenopausal women and also men with HR+/HER2– breast cancer. Cases ranged from stage IIA (with either no nodal involvement with additional risk factors or with one to three involved axillary lymph nodes) to stage IIB-III disease, based on American Joint Committee on Cancer staging.

Patients who had previously received neoadjuvant or adjuvant endocrine therapy were accepted into the trial if the therapy had been started within 1 year of randomization.

The patients were stratified by age, menopausal status, disease stage, prior chemotherapy status, and geographic region. They were randomly assigned to receive either ribociclib 400 mg per day for 3 weeks, then were given 1 week off each cycle for 3 years plus endocrine therapy with either letrozole 2.5 mg/day or anastrozole 1 mg/day for at least 5 years, or to endocrine therapy alone. Men and premenopausal women also received goserelin.

Dr. Slamon noted that the 400-mg dose of ribociclib is lower than the recommended starting dose of 600 mg for metastatic disease. They chose the lower dose to allow longer duration of therapy, with a goal of achieving optimal disease suppression by driving tumor cells into irreversible senescence with less side effects.

A total of 2,549 patients were randomly assigned to receive the combination; 2,552 patients received endocrine therapy alone.

At the data cutoff on Jan. 11, 2023, after the prespecified minimum number of IDFS events had occurred, 189 patients in the ribociclib arm experienced recurrence, compared with 237 patients in the endocrine therapy–only arm.

As noted, 3-year IDFS rates were 90.4% with ribociclib and 87.1% with endocrine therapy alone, which translates to a hazard ratio of 0.748 in favor of the combination (P = .0014).

The benefit of ribociclib was generally consistent across subgroups, including node-negative patients, but there were too few patients in this subgroup for the differences to reach statistical significance, Dr. Slamon said.
 

Safety

The most commonly reported adverse event in the endocrine therapy–alone arm were joint pain and hot flashes

The most common adverse events with ribociclib included neutropenia and joint pain. Rates of gastrointestinal adverse events and fatigue, typical of CDK4/6 inhibitors, were relatively low in this study.

Dr. Slamon compared the rates of neutropenia with ribociclib in this trial to those in pooled data from the MONALEESA series of trials, in which ribociclib was delivered at a 600-mg dose. Grade 3 or 4 neutropenia occurred in 44% of patients in NATALEE, compared with 60% of patients in the MONALEESA trials.

In the ribociclib arm, 5.2% of patients experienced prolongation of the QT interval, compared with 1.2% of patients in the endocrine therapy–alone arm. No cases of torsades des pointes or problematic rhythm disturbances were observed, Dr. Slamon said.

“As frequently happens when we have these lovely, large, phase 3 registration trials but with some restriction in eligibility, when you get out to real-world practice, we don’t know what will happen in women who are on antiarrhythmics and if they’ll have a higher incidence of the QT elongation; they just weren’t included in the study. So it sounds like we’ll have to be paying attention to that,” commented briefing moderator Julie R. Gralow, MD, FACP, FASCO, chief medical officer and executive vice president of ASCO.

The study was funded by Novartis. Dr. Slamon has a leadership position with 1200 Pharma, Biomarin, and Torl Biotherapeutics, a consulting/advisory role for Novartis, and has received honoraria, research funding, and travel expenses from Novartis and others. Multiple coauthors reported financial relationships with Novartis and others. Dr. Nanda has had consulting/advisory roles with and has received institutional research funding from several companies, not including Novartis. Dr. Adams has participated on an advisory board for Cogent Biosciences and her institution has received research funding from various companies.

A version of this article first appeared on Medscape.com.

CHICAGO – New results in the treatment of advanced ovarian cancer have been welcomed by an expert not involved in the trial, even though the study showed only an improvement in progression-free survival (PFS), not yet overall survival.

The results come from the DUO-O trial, in which the poly (ADP-ribose) polymerase (PARP) inhibitor olaparib (Lynparza) and immunotherapy with the anti–PD-L1 antibody durvalumab (Imfinzi) were added on to standard of care with paclitaxel/carboplatin chemotherapy and bevacizumab (Avastin) in patients with newly diagnosed,non–BRCA-mutated advanced ovarian cancer.

A preplanned interim analysis revealed that the addition of durvalumab and olaparib was associated with a 37% improvement of PFS, compared with the standard of care of chemotherapy plus bevacizumab alone.

This improvement increased to 51% in patients who had tumors positive for homologous recombination deficiency (HRD), which indicates the inability to effectively repair double-stranded DNA breaks, a defect that is present in approximately 70% of ovarian cancers.

Coprincipal investigator Carol Aghajanian, MD, chief of the gynecologic medical oncology service at Memorial Sloan Kettering Cancer Center, New York, described the benefit seen with the novel combination therapy as both “statistically significant and clinically meaningful.”

She was speaking at a press briefing held ahead of the annual meeting of the American Society of Clinical Oncology, where the results were presented.

Commenting for ASCO, Merry Jennifer Markham, MD, professor of medicine and chief of the division of hematology and oncology at University of Florida Health, Gainesville, said the results represents a “huge step forward.”

She added the rate of progress it represents may not be “quick enough for our patients with advanced ovarian cancer but every little integral improvement that we can find in studies that are important, like this one, really means so much to that individual patient in that exam room.”

Dr. Markham underlined that around 80% of women with epithelial ovarian cancer are diagnosed at an advanced stage. “They know what they are facing,” she said. “The vast majority” of them will have a recurrence “at some point.”

“So while progression-free survival may not necessarily mean their overall survival, there will be hope it does. And I’m very excited to see where this study heads in that direction.” Dr. Markham added that PFS is “very important to our patients,” and the study does represent progress. “We are chipping away at improving outcomes for advanced ovarian cancer.”

Moreover, “women are often disappointed when their tumor doesn’t have a BRCA mutation because they know that that may limit some of their treatment options,” and so the current study suggests that there are “options for all-comers” and “there is still hope.”
 

Access to treatment and testing

When asked whether there could be any access issues for patients clinically eligible for the novel combination, Dr. Aghajanian said that all of the drugs have been approved by the Food and Drug Administration for indications that cover this usage.

They are also covered by medical insurance and, for those patients with financial toxicity, “there is access to co-pay assistance programs and the like.”

She said that patients can then “be counseled on their expected benefit,” based on their BRCA and HRD testing.

Dr. Markham, on the other hand, said she is “a little less optimistic” about access, explaining that she practices in the southern United States, and “our populations [and] insurance coverages are a bit different.”

She noted that, at her institution, a “fair number of patients are underinsured,” and they “ran into a lot of issues with people not being able to afford their copays,” which can be “prohibitive.”

“A large portion of my counseling has been and will continue to be around the benefit, but also the financial toxicity, that that individual patient may experience and the need for copay assistance programs or other support mechanisms,” Markham said.

Dr. Aghajanian added that “financial toxicity and the access issue comes even prior to the treatment, in getting those BRCA1/2 tests and the HRD testing done, so patients have the information they need to make informed decisions.”

“We do have disparities with genetic testing and genomic testing that need to be solved,” she said.
 

Study details

Previous studies, including SOLO1 and PAOLA-1, have shown that maintenance therapy with olaparib and bevacizumab improves outcomes in the first-line treatment of advanced ovarian cancer.

“However, there still remains unmet need, especially in some patient subgroups without a BRCA mutation,” Dr. Aghajanian said.

While the addition of immunotherapy to standard of care has yet to show a clinical benefit in this setting in phase 3 trials, the phase 2 MEDIOLA study indicated that the combination of durvalumab, bevacizumab, and olaparib was active in nongermline, BRCA-mutated, platinum-sensitive relapsed cancer.

The phase 3 DUO-O study therefore set out to determine whether this combination would be beneficial as a maintenance therapy in 1130 patients with newly diagnosed stage III or IV high-grade ovarian cancer without a tumor BRCA1/2 mutation.

Patients were required to have had no prior systemic therapy for ovarian cancer, and be naive to both PARP inhibition and immunotherapy. They also had to have completed up-front primary debulking surgery, or be scheduled to undergo the procedure.

After an initial cycle of paclitaxel/carboplatin chemotherapy, the patients were randomly assigned to one of three regimens:

• Standard of care treatment, comprising chemotherapy plus bevacizumab and durvalumab-placebo, followed by maintenance therapy with bevacizumab, durvalumab-placebo, and olaparib-placebo (arm 1)
• Chemotherapy plus bevacizumab and durvalumab, followed by maintenance therapy with bevacizumab, durvalumab, and olaparib-placebo (arm 2)
• Chemotherapy plus bevacizumab and durvalumab, followed by maintenance therapy with bevacizumab, durvalumab, and olaparib (arm 3)

In the maintenance phase, bevacizumab was to be given for a total of 15 months, while durvalumab and olaparib, or their equivalent placebos, were prescribed for 24 months. Treatment was continued until disease progression, study completion, or another discontinuation criteria was met.

Dr. Aghajanian presented results from a preplanned interim analysis, with a date cutoff of Dec. 5, 2022.

Among HRD-positive patients, those in arm 3 had a significantly longer PFS than those in arm 1, at a median of 37.3 months versus 23 months, or a hazard ratio of 0.49 (P < .0001).

In the intention-to-treat analysis, arm 3 was also associated with a significant improvement in median PFS over arm 1, at 24.2 months versus 19.3 months, or an HR of 0.63 (P < .0001), indicating that the trial met both of its primary endpoints.

While there was a numerical difference in median PFS between arm 2 and arm 1, at a median of 20.6 months versus 19.3 months, this was not significant. This means that relative contribution of adding durvalumab alone is not clear, Dr. Aghajanian commented, and said that this comparison “will be reassessed at the time of the final PFS analysis.”

She added that a “PFS effect was observed across all subgroups for the arm 3 versus arm 1 comparison,” including in the HRD-negative subgroup, at a median of 20.9 months versus 17.4 months, or an HR of 0.68.

The safety and tolerability of the regimens were generally consistent with what is known for the individual agents, she commented.

Serious adverse events were reported in 34%, 43%, and 39% of patients in arms 1, 2, and 3, respectively.

The most common grade 3 or higher adverse events were neutropenia (in 26% of arm 1 patients, 28% of those in arm 2, and 31% of those in arm 3) followed by anemia (in 8%, 8%, and 24%, respectively).

Dose modifications were required in 72% of arm 1 patients, 80% of those in arm 2, and 85% of arm 3 patients. Treatment discontinuation was recorded in 20%, 26%, and 35%, respectively.
 

Tackling underserved patient populations

Discussing the results, Christina Fotopoulou, MD, PhD, professor of gynecological cancer surgery in the department of surgery and cancer, Imperial College London, said that, while the regimen may seem new, the treatments involved are “veterans,” and that they are nevertheless tackling previously underserved patient populations.

Dr. Fotopoulou, who was not involved in the study, noted that the results were highly anticipated, and the study has delivered a “breakthrough in ovarian cancer.” She nevertheless questioned the choice of the control arm, and pointed out that the hazard ratio in favor of the combination therapy is “relatively modest” considering that it involves three drugs.

Dr. Fotopoulou highlighted, however, that one of the most important results was in the HRD-negative patients, which she characterized as the equivalent of the clinicians going to “the dark side of the moon.” She said that “for the first time, we have a positive study in this patient population,” although she underlined that the results are from an interim analysis.

The key question that remains, Dr. Fotopoulou asked, is “why? What is making the difference?” She noted that, unfortunately, the trial design does not allow the identification of the relative contribution of olaparib and durvalumab.

The study was sponsored by AstraZeneca, and conducted in collaboration with the European Network of Gynaecological Oncological Trial Groups, GOG Foundation, and Myriad Genetic Laboratories. Dr. Aghajanian declared relationships with AstraZeneca, Merck, Eisai, Repare Therapeutics, AbbVie, Clovis Oncology, and Genentech/Roche. Dr. Markham declared relationships with Pfizer, GlaxoSmithKline, Aduro Biotech, Lilly, Tesaro, Novartis, VBL Therapeutics, AstraZeneca, and Merck.

A version of this article first appeared on Medscape.com.

CHICAGO – New results in the treatment of advanced ovarian cancer have been welcomed by an expert not involved in the trial, even though the study showed only an improvement in progression-free survival (PFS), not yet overall survival.

The results come from the DUO-O trial, in which the poly (ADP-ribose) polymerase (PARP) inhibitor olaparib (Lynparza) and immunotherapy with the anti–PD-L1 antibody durvalumab (Imfinzi) were added on to standard of care with paclitaxel/carboplatin chemotherapy and bevacizumab (Avastin) in patients with newly diagnosed,non–BRCA-mutated advanced ovarian cancer.

A preplanned interim analysis revealed that the addition of durvalumab and olaparib was associated with a 37% improvement of PFS, compared with the standard of care of chemotherapy plus bevacizumab alone.

This improvement increased to 51% in patients who had tumors positive for homologous recombination deficiency (HRD), which indicates the inability to effectively repair double-stranded DNA breaks, a defect that is present in approximately 70% of ovarian cancers.

Coprincipal investigator Carol Aghajanian, MD, chief of the gynecologic medical oncology service at Memorial Sloan Kettering Cancer Center, New York, described the benefit seen with the novel combination therapy as both “statistically significant and clinically meaningful.”

She was speaking at a press briefing held ahead of the annual meeting of the American Society of Clinical Oncology, where the results were presented.

Commenting for ASCO, Merry Jennifer Markham, MD, professor of medicine and chief of the division of hematology and oncology at University of Florida Health, Gainesville, said the results represents a “huge step forward.”

She added the rate of progress it represents may not be “quick enough for our patients with advanced ovarian cancer but every little integral improvement that we can find in studies that are important, like this one, really means so much to that individual patient in that exam room.”

Dr. Markham underlined that around 80% of women with epithelial ovarian cancer are diagnosed at an advanced stage. “They know what they are facing,” she said. “The vast majority” of them will have a recurrence “at some point.”

“So while progression-free survival may not necessarily mean their overall survival, there will be hope it does. And I’m very excited to see where this study heads in that direction.” Dr. Markham added that PFS is “very important to our patients,” and the study does represent progress. “We are chipping away at improving outcomes for advanced ovarian cancer.”

Moreover, “women are often disappointed when their tumor doesn’t have a BRCA mutation because they know that that may limit some of their treatment options,” and so the current study suggests that there are “options for all-comers” and “there is still hope.”
 

Access to treatment and testing

When asked whether there could be any access issues for patients clinically eligible for the novel combination, Dr. Aghajanian said that all of the drugs have been approved by the Food and Drug Administration for indications that cover this usage.

They are also covered by medical insurance and, for those patients with financial toxicity, “there is access to co-pay assistance programs and the like.”

She said that patients can then “be counseled on their expected benefit,” based on their BRCA and HRD testing.

Dr. Markham, on the other hand, said she is “a little less optimistic” about access, explaining that she practices in the southern United States, and “our populations [and] insurance coverages are a bit different.”

She noted that, at her institution, a “fair number of patients are underinsured,” and they “ran into a lot of issues with people not being able to afford their copays,” which can be “prohibitive.”

“A large portion of my counseling has been and will continue to be around the benefit, but also the financial toxicity, that that individual patient may experience and the need for copay assistance programs or other support mechanisms,” Markham said.

Dr. Aghajanian added that “financial toxicity and the access issue comes even prior to the treatment, in getting those BRCA1/2 tests and the HRD testing done, so patients have the information they need to make informed decisions.”

“We do have disparities with genetic testing and genomic testing that need to be solved,” she said.
 

Study details

Previous studies, including SOLO1 and PAOLA-1, have shown that maintenance therapy with olaparib and bevacizumab improves outcomes in the first-line treatment of advanced ovarian cancer.

“However, there still remains unmet need, especially in some patient subgroups without a BRCA mutation,” Dr. Aghajanian said.

While the addition of immunotherapy to standard of care has yet to show a clinical benefit in this setting in phase 3 trials, the phase 2 MEDIOLA study indicated that the combination of durvalumab, bevacizumab, and olaparib was active in nongermline, BRCA-mutated, platinum-sensitive relapsed cancer.

The phase 3 DUO-O study therefore set out to determine whether this combination would be beneficial as a maintenance therapy in 1130 patients with newly diagnosed stage III or IV high-grade ovarian cancer without a tumor BRCA1/2 mutation.

Patients were required to have had no prior systemic therapy for ovarian cancer, and be naive to both PARP inhibition and immunotherapy. They also had to have completed up-front primary debulking surgery, or be scheduled to undergo the procedure.

After an initial cycle of paclitaxel/carboplatin chemotherapy, the patients were randomly assigned to one of three regimens:

• Standard of care treatment, comprising chemotherapy plus bevacizumab and durvalumab-placebo, followed by maintenance therapy with bevacizumab, durvalumab-placebo, and olaparib-placebo (arm 1)
• Chemotherapy plus bevacizumab and durvalumab, followed by maintenance therapy with bevacizumab, durvalumab, and olaparib-placebo (arm 2)
• Chemotherapy plus bevacizumab and durvalumab, followed by maintenance therapy with bevacizumab, durvalumab, and olaparib (arm 3)

In the maintenance phase, bevacizumab was to be given for a total of 15 months, while durvalumab and olaparib, or their equivalent placebos, were prescribed for 24 months. Treatment was continued until disease progression, study completion, or another discontinuation criteria was met.

Dr. Aghajanian presented results from a preplanned interim analysis, with a date cutoff of Dec. 5, 2022.

Among HRD-positive patients, those in arm 3 had a significantly longer PFS than those in arm 1, at a median of 37.3 months versus 23 months, or a hazard ratio of 0.49 (P < .0001).

In the intention-to-treat analysis, arm 3 was also associated with a significant improvement in median PFS over arm 1, at 24.2 months versus 19.3 months, or an HR of 0.63 (P < .0001), indicating that the trial met both of its primary endpoints.

While there was a numerical difference in median PFS between arm 2 and arm 1, at a median of 20.6 months versus 19.3 months, this was not significant. This means that relative contribution of adding durvalumab alone is not clear, Dr. Aghajanian commented, and said that this comparison “will be reassessed at the time of the final PFS analysis.”

She added that a “PFS effect was observed across all subgroups for the arm 3 versus arm 1 comparison,” including in the HRD-negative subgroup, at a median of 20.9 months versus 17.4 months, or an HR of 0.68.

The safety and tolerability of the regimens were generally consistent with what is known for the individual agents, she commented.

Serious adverse events were reported in 34%, 43%, and 39% of patients in arms 1, 2, and 3, respectively.

The most common grade 3 or higher adverse events were neutropenia (in 26% of arm 1 patients, 28% of those in arm 2, and 31% of those in arm 3) followed by anemia (in 8%, 8%, and 24%, respectively).

Dose modifications were required in 72% of arm 1 patients, 80% of those in arm 2, and 85% of arm 3 patients. Treatment discontinuation was recorded in 20%, 26%, and 35%, respectively.
 

Tackling underserved patient populations

Discussing the results, Christina Fotopoulou, MD, PhD, professor of gynecological cancer surgery in the department of surgery and cancer, Imperial College London, said that, while the regimen may seem new, the treatments involved are “veterans,” and that they are nevertheless tackling previously underserved patient populations.

Dr. Fotopoulou, who was not involved in the study, noted that the results were highly anticipated, and the study has delivered a “breakthrough in ovarian cancer.” She nevertheless questioned the choice of the control arm, and pointed out that the hazard ratio in favor of the combination therapy is “relatively modest” considering that it involves three drugs.

Dr. Fotopoulou highlighted, however, that one of the most important results was in the HRD-negative patients, which she characterized as the equivalent of the clinicians going to “the dark side of the moon.” She said that “for the first time, we have a positive study in this patient population,” although she underlined that the results are from an interim analysis.

The key question that remains, Dr. Fotopoulou asked, is “why? What is making the difference?” She noted that, unfortunately, the trial design does not allow the identification of the relative contribution of olaparib and durvalumab.

The study was sponsored by AstraZeneca, and conducted in collaboration with the European Network of Gynaecological Oncological Trial Groups, GOG Foundation, and Myriad Genetic Laboratories. Dr. Aghajanian declared relationships with AstraZeneca, Merck, Eisai, Repare Therapeutics, AbbVie, Clovis Oncology, and Genentech/Roche. Dr. Markham declared relationships with Pfizer, GlaxoSmithKline, Aduro Biotech, Lilly, Tesaro, Novartis, VBL Therapeutics, AstraZeneca, and Merck.

A version of this article first appeared on Medscape.com.

CHICAGO – New results in the treatment of advanced ovarian cancer have been welcomed by an expert not involved in the trial, even though the study showed only an improvement in progression-free survival (PFS), not yet overall survival.

The results come from the DUO-O trial, in which the poly (ADP-ribose) polymerase (PARP) inhibitor olaparib (Lynparza) and immunotherapy with the anti–PD-L1 antibody durvalumab (Imfinzi) were added on to standard of care with paclitaxel/carboplatin chemotherapy and bevacizumab (Avastin) in patients with newly diagnosed,non–BRCA-mutated advanced ovarian cancer.

A preplanned interim analysis revealed that the addition of durvalumab and olaparib was associated with a 37% improvement of PFS, compared with the standard of care of chemotherapy plus bevacizumab alone.

This improvement increased to 51% in patients who had tumors positive for homologous recombination deficiency (HRD), which indicates the inability to effectively repair double-stranded DNA breaks, a defect that is present in approximately 70% of ovarian cancers.

Coprincipal investigator Carol Aghajanian, MD, chief of the gynecologic medical oncology service at Memorial Sloan Kettering Cancer Center, New York, described the benefit seen with the novel combination therapy as both “statistically significant and clinically meaningful.”

She was speaking at a press briefing held ahead of the annual meeting of the American Society of Clinical Oncology, where the results were presented.

Commenting for ASCO, Merry Jennifer Markham, MD, professor of medicine and chief of the division of hematology and oncology at University of Florida Health, Gainesville, said the results represents a “huge step forward.”

She added the rate of progress it represents may not be “quick enough for our patients with advanced ovarian cancer but every little integral improvement that we can find in studies that are important, like this one, really means so much to that individual patient in that exam room.”

Dr. Markham underlined that around 80% of women with epithelial ovarian cancer are diagnosed at an advanced stage. “They know what they are facing,” she said. “The vast majority” of them will have a recurrence “at some point.”

“So while progression-free survival may not necessarily mean their overall survival, there will be hope it does. And I’m very excited to see where this study heads in that direction.” Dr. Markham added that PFS is “very important to our patients,” and the study does represent progress. “We are chipping away at improving outcomes for advanced ovarian cancer.”

Moreover, “women are often disappointed when their tumor doesn’t have a BRCA mutation because they know that that may limit some of their treatment options,” and so the current study suggests that there are “options for all-comers” and “there is still hope.”
 

Access to treatment and testing

When asked whether there could be any access issues for patients clinically eligible for the novel combination, Dr. Aghajanian said that all of the drugs have been approved by the Food and Drug Administration for indications that cover this usage.

They are also covered by medical insurance and, for those patients with financial toxicity, “there is access to co-pay assistance programs and the like.”

She said that patients can then “be counseled on their expected benefit,” based on their BRCA and HRD testing.

Dr. Markham, on the other hand, said she is “a little less optimistic” about access, explaining that she practices in the southern United States, and “our populations [and] insurance coverages are a bit different.”

She noted that, at her institution, a “fair number of patients are underinsured,” and they “ran into a lot of issues with people not being able to afford their copays,” which can be “prohibitive.”

“A large portion of my counseling has been and will continue to be around the benefit, but also the financial toxicity, that that individual patient may experience and the need for copay assistance programs or other support mechanisms,” Markham said.

Dr. Aghajanian added that “financial toxicity and the access issue comes even prior to the treatment, in getting those BRCA1/2 tests and the HRD testing done, so patients have the information they need to make informed decisions.”

“We do have disparities with genetic testing and genomic testing that need to be solved,” she said.
 

Study details

Previous studies, including SOLO1 and PAOLA-1, have shown that maintenance therapy with olaparib and bevacizumab improves outcomes in the first-line treatment of advanced ovarian cancer.

“However, there still remains unmet need, especially in some patient subgroups without a BRCA mutation,” Dr. Aghajanian said.

While the addition of immunotherapy to standard of care has yet to show a clinical benefit in this setting in phase 3 trials, the phase 2 MEDIOLA study indicated that the combination of durvalumab, bevacizumab, and olaparib was active in nongermline, BRCA-mutated, platinum-sensitive relapsed cancer.

The phase 3 DUO-O study therefore set out to determine whether this combination would be beneficial as a maintenance therapy in 1130 patients with newly diagnosed stage III or IV high-grade ovarian cancer without a tumor BRCA1/2 mutation.

Patients were required to have had no prior systemic therapy for ovarian cancer, and be naive to both PARP inhibition and immunotherapy. They also had to have completed up-front primary debulking surgery, or be scheduled to undergo the procedure.

After an initial cycle of paclitaxel/carboplatin chemotherapy, the patients were randomly assigned to one of three regimens:

• Standard of care treatment, comprising chemotherapy plus bevacizumab and durvalumab-placebo, followed by maintenance therapy with bevacizumab, durvalumab-placebo, and olaparib-placebo (arm 1)
• Chemotherapy plus bevacizumab and durvalumab, followed by maintenance therapy with bevacizumab, durvalumab, and olaparib-placebo (arm 2)
• Chemotherapy plus bevacizumab and durvalumab, followed by maintenance therapy with bevacizumab, durvalumab, and olaparib (arm 3)

In the maintenance phase, bevacizumab was to be given for a total of 15 months, while durvalumab and olaparib, or their equivalent placebos, were prescribed for 24 months. Treatment was continued until disease progression, study completion, or another discontinuation criteria was met.

Dr. Aghajanian presented results from a preplanned interim analysis, with a date cutoff of Dec. 5, 2022.

Among HRD-positive patients, those in arm 3 had a significantly longer PFS than those in arm 1, at a median of 37.3 months versus 23 months, or a hazard ratio of 0.49 (P < .0001).

In the intention-to-treat analysis, arm 3 was also associated with a significant improvement in median PFS over arm 1, at 24.2 months versus 19.3 months, or an HR of 0.63 (P < .0001), indicating that the trial met both of its primary endpoints.

While there was a numerical difference in median PFS between arm 2 and arm 1, at a median of 20.6 months versus 19.3 months, this was not significant. This means that relative contribution of adding durvalumab alone is not clear, Dr. Aghajanian commented, and said that this comparison “will be reassessed at the time of the final PFS analysis.”

She added that a “PFS effect was observed across all subgroups for the arm 3 versus arm 1 comparison,” including in the HRD-negative subgroup, at a median of 20.9 months versus 17.4 months, or an HR of 0.68.

The safety and tolerability of the regimens were generally consistent with what is known for the individual agents, she commented.

Serious adverse events were reported in 34%, 43%, and 39% of patients in arms 1, 2, and 3, respectively.

The most common grade 3 or higher adverse events were neutropenia (in 26% of arm 1 patients, 28% of those in arm 2, and 31% of those in arm 3) followed by anemia (in 8%, 8%, and 24%, respectively).

Dose modifications were required in 72% of arm 1 patients, 80% of those in arm 2, and 85% of arm 3 patients. Treatment discontinuation was recorded in 20%, 26%, and 35%, respectively.
 

Tackling underserved patient populations

Discussing the results, Christina Fotopoulou, MD, PhD, professor of gynecological cancer surgery in the department of surgery and cancer, Imperial College London, said that, while the regimen may seem new, the treatments involved are “veterans,” and that they are nevertheless tackling previously underserved patient populations.

Dr. Fotopoulou, who was not involved in the study, noted that the results were highly anticipated, and the study has delivered a “breakthrough in ovarian cancer.” She nevertheless questioned the choice of the control arm, and pointed out that the hazard ratio in favor of the combination therapy is “relatively modest” considering that it involves three drugs.

Dr. Fotopoulou highlighted, however, that one of the most important results was in the HRD-negative patients, which she characterized as the equivalent of the clinicians going to “the dark side of the moon.” She said that “for the first time, we have a positive study in this patient population,” although she underlined that the results are from an interim analysis.

The key question that remains, Dr. Fotopoulou asked, is “why? What is making the difference?” She noted that, unfortunately, the trial design does not allow the identification of the relative contribution of olaparib and durvalumab.

The study was sponsored by AstraZeneca, and conducted in collaboration with the European Network of Gynaecological Oncological Trial Groups, GOG Foundation, and Myriad Genetic Laboratories. Dr. Aghajanian declared relationships with AstraZeneca, Merck, Eisai, Repare Therapeutics, AbbVie, Clovis Oncology, and Genentech/Roche. Dr. Markham declared relationships with Pfizer, GlaxoSmithKline, Aduro Biotech, Lilly, Tesaro, Novartis, VBL Therapeutics, AstraZeneca, and Merck.

A version of this article first appeared on Medscape.com.

CHICAGO – Many patients with locally advanced rectal cancer who do not have high-risk disease can skip radiotherapy to the pelvic area, and instead be treated with chemotherapy alone and then surgery, say researchers reporting results from the PROSPECT trial.

“This study establishes preoperative therapy with FOLFOX and only selective use of chemoradiation for patients with locally advanced rectal cancer,” commented principal investigator Deborah Schrag, MD, MPH, gastrointestinal oncologist at Memorial Sloan Kettering Cancer Center, New York.

“Having this option is important for several reasons,” she said. “First, in many parts of the world, radiation therapy is not readily accessible. An all-chemotherapy approach may make curative intent treatment accessible for patients in these resource-constrained settings. Additionally, given the rising rates of colorectal cancer in young patients, this provides an option for patients who wish to preserve fertility or avoid early menopause.”

Reacting to the findings, Pamela Kunz, MD, leader of the gastrointestinal cancers program at Yale Cancer Center, New Haven, Conn., commented: “What’s important here is that radiation can be safely omitted in many patients with clinically advanced rectal cancer – this is really ‘less is more.’ ”

“We can spare select patients from receiving radiation without compromising efficacy,” she said. “This leads to improved quality of life, and reduced side effects, including things like early menopause and infertility.”

Dr. Kunz spoke at a press briefing where the results were highlighted prior to being presented at a plenary session at the annual meeting of the American Society of Clinical Oncology.

She said the trial was “practice changing, and it aligns incredibly well with the theme at this year’s annual meeting around de-escalation of therapy and partnering with patients.”

Julie R. Gralow, MD, ASCO chief medical officer and executive vice president, added that the theme may be de-escalation, but in this case it is “really more accurately optimization, because you were able to de-escalate in 91%, but you found the 9% who really needed that escalation, if you will.”

The efficacy results were published simultaneously in the New England Journal of Medicine, while the patient-reported outcomes were published in the Journal of Clinical Oncology.
 

Chemoradiation is standard approach

Presenting the findings, Dr. Schrag began by noting that approximately half of all new rectal cancer diagnoses have locally advanced disease, which in the United States represents 48,000 cases per year.

She explained that the “standard approach” to treatment is 5½ weeks of daily chemoradiation, comprising radiation to the pelvis alongside sensitizing chemotherapy with a fluoropyrimidine, followed by surgery, and then approximately 16 weeks of adjuvant chemotherapy.

“This way, we have achieved very good outcomes,” Dr. Schrag noted, with the inclusion of radiation in the 1980s a “critically important advance” in slowing rates of recurrence, which is a “cause of enormous suffering.”

However, the treatment is “long and hard,” and the pelvic radiation causes “real toxicities,” she said. These can include impaired bowel, bladder, and sexual function, and an increase in late effects, such as increased risk of pelvic fractures and secondary cancers, as well as infertility and early menopause, and impaired bone marrow function.

This depressed bone marrow function can “become a problem for people going into chemotherapy into the future,” while infertility and early menopause are “a big deal because we’re seeing increasing diagnosis of rectal cancer in people before the age of 50 years.”

Dr. Schrag said that, since chemoradiotherapy became the standard of care, there has been “so much progress,” with better chemotherapy, better surgical techniques, and more screening, so we’re finding more tumors when they are smaller and easier to treat.”

The impetus for the PROSPECT trial, Dr. Schrag said, was therefore: “Could we use radiotherapy more selectively, and only give it to people who don’t respond to chemotherapy rather than giving [it] to everybody?”

The trial enrolled 1,128 patients with rectal cancer with clinically staged T2 node–positive, T3 node–negative, or T3 node–positive disease and who were candidates for sphincter-sparing surgery.

They were randomly assigned to receive either a modified chemotherapy regimen (n = 585) or standard chemoradiation (n = 543). The mean age of the patients was 57 years; 34.5% were female. The majority (85%) were White.

All patients then underwent surgery, with low anterior resection with total mesorectal excision.

The standard chemoradiotherapy consisted of pelvic radiotherapy at 50.4 Gy over 28 fractions alongside sensitizing chemotherapy with either fluorouracil or capecitabine.

The modified chemotherapy regimen consisted of mFOLFOX6, which included modified oxaliplatin with l-leucovorin, and bolus/continuous infusion of 5-fluorouracil.

Patients in the mFOLFOX6 group whose primary tumor decreased in size by at least 20% after the six cycles proceeded straight to surgery, while were rest given the chemoradiotherapy before surgery (9% ended up receiving chemoradiotherapy).

Postoperative adjuvant chemotherapy with six cycles in the mFOLFOX6 group, or eight cycles in the chemoradiotherapy group, was suggested but not mandated.

Dr. Schrag said in an interview that the team chose to use mFOLFOX6 because of their long experience in using it.

FOLFOX first became available in 2002, and randomized controlled trials showed that it was more effective than 5-fluorouracil alone in colon cancer trials.

She explained that locally advanced rectal cancer patients were “never included” in those trials because they were already receiving chemoradiotherapy, but that its use in metastatic rectal cancer, coupled with the data in colon cancer, led them to try it in the current setting.

“It’s also quite tolerable, it’s given every 2 weeks, and it’s familiar to oncologists everywhere,” Dr. Schrag added.

She noted that it’s “not risk free,” with an increased risk of neuropathy, “which is not a great side effect, but we’re able to modulate that.”
 

Trial results

After a median follow-up of 58 months, mFOLFOX6 was found to be noninferior to chemoradiotherapy for disease-free survival, at a hazard ratio for disease recurrence or death of 0.92 (P = .005 for noninferiority).

The 5-year disease-free survival was 80.8% in the mFOLFOX6 group and 78.6% among patients assigned to chemoradiotherapy, while 5-year overall survival was 89.5% versus 90.2%, at a nonsignificant HR for death of 1.04.

Rates of local recurrence at 5 years were low, at 1.8% with mFOLFOX6 and 1.6% with chemoradiotherapy.

Grade 3 or higher adverse effects were twice as common in the mFOLFOX6 group than among patients who received chemoradiotherapy, at 41% versus 22.8%, although the researchers noted that the treatment period was also twice as long in the chemotherapy arm.

The most common grade 3 or higher adverse effects with mFOLFOX6 were neutropenia (20.3%), pain (3.1%), and hypertension (2.9%), while those with chemoradiotherapy were lymphopenia (8.3%), diarrhea (6.4%), and hypertension (1.7%).

In terms of patient reported outcomes, patients receiving mFOLFOX6 reported lower rates of diarrhea and better overall bowel function during the neoadjuvant phase than those given chemoradiotherapy (P < .05 for all).

However, those assigned to chemoradiotherapy experienced lower rates of anxiety, appetite loss, constipation, depression, dysphagia, dyspnea, edema, fatigue, mucositis, nausea, neuropathy, and vomiting during treatment (P < .05 for all).

At 12-month postoperative follow-up, however, those differences had disappeared, and patients originally assigned to mFOLFOX6 had lower rates of fatigue and neuropathy, and better sexual function, than those given chemoradiotherapy (P < .05 for all).

“During the treatment itself, multiple symptoms were worse with chemotherapy, but a year after treatment ended, those symptoms resolved and the pattern flipped so that patients who received radiation exhibited lingering symptoms,” said coinvestigator Ethan Basch, MD, MSc, chief of medical oncology, and director of the cancer outcomes research program at University of North Carolina Lineberger Comprehensive Cancer Center, Chapel Hill.

“Patients ideally will understand the potential impact of treatments on how they feel and function when making choices, so as oncologists we need to talk with our patients about their options and the consequences of those options,” he said in a statement.

The study was funded by the National Cancer Institute of the National Institutes of Health. Dr. Schrag reported relationships with Merck, JAMA, the American Association for Cancer Research, and Grail. Dr. Basch reported relationships with AstraZeneca, Navigating Cancer, Resilience Care, SIVAN Innovation, ASCO, Centers for Medicare & Medicaid Services, JAMA, the National Cancer Institute, and the Patient-Centered Outcomes Research Institute. Dr. Kunz reported relationships with Novartis, Genentech/Roche, Amgen, Crinetics Pharmaceuticals, Natera, HUTCHMED, and Isotope Technologies Munich. Dr. Gralow reported relationships with Genentech/Roche.

A version of this article first appeared on Medscape.com.

CHICAGO – Many patients with locally advanced rectal cancer who do not have high-risk disease can skip radiotherapy to the pelvic area, and instead be treated with chemotherapy alone and then surgery, say researchers reporting results from the PROSPECT trial.

“This study establishes preoperative therapy with FOLFOX and only selective use of chemoradiation for patients with locally advanced rectal cancer,” commented principal investigator Deborah Schrag, MD, MPH, gastrointestinal oncologist at Memorial Sloan Kettering Cancer Center, New York.

“Having this option is important for several reasons,” she said. “First, in many parts of the world, radiation therapy is not readily accessible. An all-chemotherapy approach may make curative intent treatment accessible for patients in these resource-constrained settings. Additionally, given the rising rates of colorectal cancer in young patients, this provides an option for patients who wish to preserve fertility or avoid early menopause.”

Reacting to the findings, Pamela Kunz, MD, leader of the gastrointestinal cancers program at Yale Cancer Center, New Haven, Conn., commented: “What’s important here is that radiation can be safely omitted in many patients with clinically advanced rectal cancer – this is really ‘less is more.’ ”

“We can spare select patients from receiving radiation without compromising efficacy,” she said. “This leads to improved quality of life, and reduced side effects, including things like early menopause and infertility.”

Dr. Kunz spoke at a press briefing where the results were highlighted prior to being presented at a plenary session at the annual meeting of the American Society of Clinical Oncology.

She said the trial was “practice changing, and it aligns incredibly well with the theme at this year’s annual meeting around de-escalation of therapy and partnering with patients.”

Julie R. Gralow, MD, ASCO chief medical officer and executive vice president, added that the theme may be de-escalation, but in this case it is “really more accurately optimization, because you were able to de-escalate in 91%, but you found the 9% who really needed that escalation, if you will.”

The efficacy results were published simultaneously in the New England Journal of Medicine, while the patient-reported outcomes were published in the Journal of Clinical Oncology.
 

Chemoradiation is standard approach

Presenting the findings, Dr. Schrag began by noting that approximately half of all new rectal cancer diagnoses have locally advanced disease, which in the United States represents 48,000 cases per year.

She explained that the “standard approach” to treatment is 5½ weeks of daily chemoradiation, comprising radiation to the pelvis alongside sensitizing chemotherapy with a fluoropyrimidine, followed by surgery, and then approximately 16 weeks of adjuvant chemotherapy.

“This way, we have achieved very good outcomes,” Dr. Schrag noted, with the inclusion of radiation in the 1980s a “critically important advance” in slowing rates of recurrence, which is a “cause of enormous suffering.”

However, the treatment is “long and hard,” and the pelvic radiation causes “real toxicities,” she said. These can include impaired bowel, bladder, and sexual function, and an increase in late effects, such as increased risk of pelvic fractures and secondary cancers, as well as infertility and early menopause, and impaired bone marrow function.

This depressed bone marrow function can “become a problem for people going into chemotherapy into the future,” while infertility and early menopause are “a big deal because we’re seeing increasing diagnosis of rectal cancer in people before the age of 50 years.”

Dr. Schrag said that, since chemoradiotherapy became the standard of care, there has been “so much progress,” with better chemotherapy, better surgical techniques, and more screening, so we’re finding more tumors when they are smaller and easier to treat.”

The impetus for the PROSPECT trial, Dr. Schrag said, was therefore: “Could we use radiotherapy more selectively, and only give it to people who don’t respond to chemotherapy rather than giving [it] to everybody?”

The trial enrolled 1,128 patients with rectal cancer with clinically staged T2 node–positive, T3 node–negative, or T3 node–positive disease and who were candidates for sphincter-sparing surgery.

They were randomly assigned to receive either a modified chemotherapy regimen (n = 585) or standard chemoradiation (n = 543). The mean age of the patients was 57 years; 34.5% were female. The majority (85%) were White.

All patients then underwent surgery, with low anterior resection with total mesorectal excision.

The standard chemoradiotherapy consisted of pelvic radiotherapy at 50.4 Gy over 28 fractions alongside sensitizing chemotherapy with either fluorouracil or capecitabine.

The modified chemotherapy regimen consisted of mFOLFOX6, which included modified oxaliplatin with l-leucovorin, and bolus/continuous infusion of 5-fluorouracil.

Patients in the mFOLFOX6 group whose primary tumor decreased in size by at least 20% after the six cycles proceeded straight to surgery, while were rest given the chemoradiotherapy before surgery (9% ended up receiving chemoradiotherapy).

Postoperative adjuvant chemotherapy with six cycles in the mFOLFOX6 group, or eight cycles in the chemoradiotherapy group, was suggested but not mandated.

Dr. Schrag said in an interview that the team chose to use mFOLFOX6 because of their long experience in using it.

FOLFOX first became available in 2002, and randomized controlled trials showed that it was more effective than 5-fluorouracil alone in colon cancer trials.

She explained that locally advanced rectal cancer patients were “never included” in those trials because they were already receiving chemoradiotherapy, but that its use in metastatic rectal cancer, coupled with the data in colon cancer, led them to try it in the current setting.

“It’s also quite tolerable, it’s given every 2 weeks, and it’s familiar to oncologists everywhere,” Dr. Schrag added.

She noted that it’s “not risk free,” with an increased risk of neuropathy, “which is not a great side effect, but we’re able to modulate that.”
 

Trial results

After a median follow-up of 58 months, mFOLFOX6 was found to be noninferior to chemoradiotherapy for disease-free survival, at a hazard ratio for disease recurrence or death of 0.92 (P = .005 for noninferiority).

The 5-year disease-free survival was 80.8% in the mFOLFOX6 group and 78.6% among patients assigned to chemoradiotherapy, while 5-year overall survival was 89.5% versus 90.2%, at a nonsignificant HR for death of 1.04.

Rates of local recurrence at 5 years were low, at 1.8% with mFOLFOX6 and 1.6% with chemoradiotherapy.

Grade 3 or higher adverse effects were twice as common in the mFOLFOX6 group than among patients who received chemoradiotherapy, at 41% versus 22.8%, although the researchers noted that the treatment period was also twice as long in the chemotherapy arm.

The most common grade 3 or higher adverse effects with mFOLFOX6 were neutropenia (20.3%), pain (3.1%), and hypertension (2.9%), while those with chemoradiotherapy were lymphopenia (8.3%), diarrhea (6.4%), and hypertension (1.7%).

In terms of patient reported outcomes, patients receiving mFOLFOX6 reported lower rates of diarrhea and better overall bowel function during the neoadjuvant phase than those given chemoradiotherapy (P < .05 for all).

However, those assigned to chemoradiotherapy experienced lower rates of anxiety, appetite loss, constipation, depression, dysphagia, dyspnea, edema, fatigue, mucositis, nausea, neuropathy, and vomiting during treatment (P < .05 for all).

At 12-month postoperative follow-up, however, those differences had disappeared, and patients originally assigned to mFOLFOX6 had lower rates of fatigue and neuropathy, and better sexual function, than those given chemoradiotherapy (P < .05 for all).

“During the treatment itself, multiple symptoms were worse with chemotherapy, but a year after treatment ended, those symptoms resolved and the pattern flipped so that patients who received radiation exhibited lingering symptoms,” said coinvestigator Ethan Basch, MD, MSc, chief of medical oncology, and director of the cancer outcomes research program at University of North Carolina Lineberger Comprehensive Cancer Center, Chapel Hill.

“Patients ideally will understand the potential impact of treatments on how they feel and function when making choices, so as oncologists we need to talk with our patients about their options and the consequences of those options,” he said in a statement.

The study was funded by the National Cancer Institute of the National Institutes of Health. Dr. Schrag reported relationships with Merck, JAMA, the American Association for Cancer Research, and Grail. Dr. Basch reported relationships with AstraZeneca, Navigating Cancer, Resilience Care, SIVAN Innovation, ASCO, Centers for Medicare & Medicaid Services, JAMA, the National Cancer Institute, and the Patient-Centered Outcomes Research Institute. Dr. Kunz reported relationships with Novartis, Genentech/Roche, Amgen, Crinetics Pharmaceuticals, Natera, HUTCHMED, and Isotope Technologies Munich. Dr. Gralow reported relationships with Genentech/Roche.

A version of this article first appeared on Medscape.com.

CHICAGO – Many patients with locally advanced rectal cancer who do not have high-risk disease can skip radiotherapy to the pelvic area, and instead be treated with chemotherapy alone and then surgery, say researchers reporting results from the PROSPECT trial.

“This study establishes preoperative therapy with FOLFOX and only selective use of chemoradiation for patients with locally advanced rectal cancer,” commented principal investigator Deborah Schrag, MD, MPH, gastrointestinal oncologist at Memorial Sloan Kettering Cancer Center, New York.

“Having this option is important for several reasons,” she said. “First, in many parts of the world, radiation therapy is not readily accessible. An all-chemotherapy approach may make curative intent treatment accessible for patients in these resource-constrained settings. Additionally, given the rising rates of colorectal cancer in young patients, this provides an option for patients who wish to preserve fertility or avoid early menopause.”

Reacting to the findings, Pamela Kunz, MD, leader of the gastrointestinal cancers program at Yale Cancer Center, New Haven, Conn., commented: “What’s important here is that radiation can be safely omitted in many patients with clinically advanced rectal cancer – this is really ‘less is more.’ ”

“We can spare select patients from receiving radiation without compromising efficacy,” she said. “This leads to improved quality of life, and reduced side effects, including things like early menopause and infertility.”

Dr. Kunz spoke at a press briefing where the results were highlighted prior to being presented at a plenary session at the annual meeting of the American Society of Clinical Oncology.

She said the trial was “practice changing, and it aligns incredibly well with the theme at this year’s annual meeting around de-escalation of therapy and partnering with patients.”

Julie R. Gralow, MD, ASCO chief medical officer and executive vice president, added that the theme may be de-escalation, but in this case it is “really more accurately optimization, because you were able to de-escalate in 91%, but you found the 9% who really needed that escalation, if you will.”

The efficacy results were published simultaneously in the New England Journal of Medicine, while the patient-reported outcomes were published in the Journal of Clinical Oncology.
 

Chemoradiation is standard approach

Presenting the findings, Dr. Schrag began by noting that approximately half of all new rectal cancer diagnoses have locally advanced disease, which in the United States represents 48,000 cases per year.

She explained that the “standard approach” to treatment is 5½ weeks of daily chemoradiation, comprising radiation to the pelvis alongside sensitizing chemotherapy with a fluoropyrimidine, followed by surgery, and then approximately 16 weeks of adjuvant chemotherapy.

“This way, we have achieved very good outcomes,” Dr. Schrag noted, with the inclusion of radiation in the 1980s a “critically important advance” in slowing rates of recurrence, which is a “cause of enormous suffering.”

However, the treatment is “long and hard,” and the pelvic radiation causes “real toxicities,” she said. These can include impaired bowel, bladder, and sexual function, and an increase in late effects, such as increased risk of pelvic fractures and secondary cancers, as well as infertility and early menopause, and impaired bone marrow function.

This depressed bone marrow function can “become a problem for people going into chemotherapy into the future,” while infertility and early menopause are “a big deal because we’re seeing increasing diagnosis of rectal cancer in people before the age of 50 years.”

Dr. Schrag said that, since chemoradiotherapy became the standard of care, there has been “so much progress,” with better chemotherapy, better surgical techniques, and more screening, so we’re finding more tumors when they are smaller and easier to treat.”

The impetus for the PROSPECT trial, Dr. Schrag said, was therefore: “Could we use radiotherapy more selectively, and only give it to people who don’t respond to chemotherapy rather than giving [it] to everybody?”

The trial enrolled 1,128 patients with rectal cancer with clinically staged T2 node–positive, T3 node–negative, or T3 node–positive disease and who were candidates for sphincter-sparing surgery.

They were randomly assigned to receive either a modified chemotherapy regimen (n = 585) or standard chemoradiation (n = 543). The mean age of the patients was 57 years; 34.5% were female. The majority (85%) were White.

All patients then underwent surgery, with low anterior resection with total mesorectal excision.

The standard chemoradiotherapy consisted of pelvic radiotherapy at 50.4 Gy over 28 fractions alongside sensitizing chemotherapy with either fluorouracil or capecitabine.

The modified chemotherapy regimen consisted of mFOLFOX6, which included modified oxaliplatin with l-leucovorin, and bolus/continuous infusion of 5-fluorouracil.

Patients in the mFOLFOX6 group whose primary tumor decreased in size by at least 20% after the six cycles proceeded straight to surgery, while were rest given the chemoradiotherapy before surgery (9% ended up receiving chemoradiotherapy).

Postoperative adjuvant chemotherapy with six cycles in the mFOLFOX6 group, or eight cycles in the chemoradiotherapy group, was suggested but not mandated.

Dr. Schrag said in an interview that the team chose to use mFOLFOX6 because of their long experience in using it.

FOLFOX first became available in 2002, and randomized controlled trials showed that it was more effective than 5-fluorouracil alone in colon cancer trials.

She explained that locally advanced rectal cancer patients were “never included” in those trials because they were already receiving chemoradiotherapy, but that its use in metastatic rectal cancer, coupled with the data in colon cancer, led them to try it in the current setting.

“It’s also quite tolerable, it’s given every 2 weeks, and it’s familiar to oncologists everywhere,” Dr. Schrag added.

She noted that it’s “not risk free,” with an increased risk of neuropathy, “which is not a great side effect, but we’re able to modulate that.”
 

Trial results

After a median follow-up of 58 months, mFOLFOX6 was found to be noninferior to chemoradiotherapy for disease-free survival, at a hazard ratio for disease recurrence or death of 0.92 (P = .005 for noninferiority).

The 5-year disease-free survival was 80.8% in the mFOLFOX6 group and 78.6% among patients assigned to chemoradiotherapy, while 5-year overall survival was 89.5% versus 90.2%, at a nonsignificant HR for death of 1.04.

Rates of local recurrence at 5 years were low, at 1.8% with mFOLFOX6 and 1.6% with chemoradiotherapy.

Grade 3 or higher adverse effects were twice as common in the mFOLFOX6 group than among patients who received chemoradiotherapy, at 41% versus 22.8%, although the researchers noted that the treatment period was also twice as long in the chemotherapy arm.

The most common grade 3 or higher adverse effects with mFOLFOX6 were neutropenia (20.3%), pain (3.1%), and hypertension (2.9%), while those with chemoradiotherapy were lymphopenia (8.3%), diarrhea (6.4%), and hypertension (1.7%).

In terms of patient reported outcomes, patients receiving mFOLFOX6 reported lower rates of diarrhea and better overall bowel function during the neoadjuvant phase than those given chemoradiotherapy (P < .05 for all).

However, those assigned to chemoradiotherapy experienced lower rates of anxiety, appetite loss, constipation, depression, dysphagia, dyspnea, edema, fatigue, mucositis, nausea, neuropathy, and vomiting during treatment (P < .05 for all).

At 12-month postoperative follow-up, however, those differences had disappeared, and patients originally assigned to mFOLFOX6 had lower rates of fatigue and neuropathy, and better sexual function, than those given chemoradiotherapy (P < .05 for all).

“During the treatment itself, multiple symptoms were worse with chemotherapy, but a year after treatment ended, those symptoms resolved and the pattern flipped so that patients who received radiation exhibited lingering symptoms,” said coinvestigator Ethan Basch, MD, MSc, chief of medical oncology, and director of the cancer outcomes research program at University of North Carolina Lineberger Comprehensive Cancer Center, Chapel Hill.

“Patients ideally will understand the potential impact of treatments on how they feel and function when making choices, so as oncologists we need to talk with our patients about their options and the consequences of those options,” he said in a statement.

The study was funded by the National Cancer Institute of the National Institutes of Health. Dr. Schrag reported relationships with Merck, JAMA, the American Association for Cancer Research, and Grail. Dr. Basch reported relationships with AstraZeneca, Navigating Cancer, Resilience Care, SIVAN Innovation, ASCO, Centers for Medicare & Medicaid Services, JAMA, the National Cancer Institute, and the Patient-Centered Outcomes Research Institute. Dr. Kunz reported relationships with Novartis, Genentech/Roche, Amgen, Crinetics Pharmaceuticals, Natera, HUTCHMED, and Isotope Technologies Munich. Dr. Gralow reported relationships with Genentech/Roche.

A version of this article first appeared on Medscape.com.

A telephone-based weight loss intervention resulted in clinically meaningful weight loss in patients with breast cancer who were overweight and obese.

The finding comes from a case-control study of 3,136 women who had been diagnosed with stage II or III breast cancer. The average body mass index of participants was 34.5 kg/m², and mean age was 53.4 years.

After 6 months, patients who received telephone coaching as well as health education lost 4.4 kg (9.7 lb), which was 4.8% of their baseline body weight.

In contrast, patients in the control group, who received only health education, gained 0.2 kg (0.3% of their baseline body weight) over the same period.

At the 1-year mark, the telephone weight loss intervention group had maintained the weight they lost at 6 months, whereas the control group gained even more weight and ended with a 0.9% weight gain.

“This equated to a 5.56% weight differential in the two arms demonstrating significant weight loss, which was also clinically significant given that a 3% weight loss is sufficient to improve diabetes and other chronic diseases,” commented lead author Jennifer Ligibel, MD, associate professor of medicine at the Dana-Farber Cancer Institute in Boston. 

She spoke at a press briefing ahead of the annual meeting of the American Society of Clinical Oncology, where the study was presented.

“Our study provides compelling evidence that weight loss interventions can successfully reduce weight in a diverse population of patients with breast cancer,” she said in a statement. At the time of diagnosis, 57% of patients were postmenopausal, 80.3% were White, 12.8% were Black, and 7.3% were Hispanic. 

Patients in the intervention group received a health education program plus a 2-year telephone-based weight loss program that focused on lowering calorie intake and increasing physical activity.

Those in the control group only received the health education program that included nontailored diet and exercise materials, a quarterly newsletter, twice-yearly webinars, and a subscription to a health magazine of the participant’s choosing

“This study was delivered completely remotely and it was done so purposefully because we wanted to develop a program that could work for somebody who lived in a rural area in the middle of the country, as well as it could for somebody who lived close to a cancer center,” Dr. Ligibel commented.

“The next step will be to determine whether this weight loss translates into lower rates of cancer recurrence and mortality. If our trial is successful in improving cancer outcomes, it will have far-reaching implications, demonstrating that weight loss should be incorporated into the standard of care for survivors of breast cancer,” she added.

Commenting on the new findings, ASCO expert Elizabeth Anne Comen, MD, Memorial Sloan Kettering Cancer Center, New York, said: “This study demonstrates that consistent health coaching by telephone – a more accessible, cost-effective approach compared to in-person programs – can significantly help patients with breast cancer lose weight over 1 year and is effective across diverse groups of patients.

“We anxiously await longer-term follow-up to see whether this weight reduction will ultimately improve outcomes for these patients,” she added.

A version of this article first appeared on Medscape.com.

A telephone-based weight loss intervention resulted in clinically meaningful weight loss in patients with breast cancer who were overweight and obese.

The finding comes from a case-control study of 3,136 women who had been diagnosed with stage II or III breast cancer. The average body mass index of participants was 34.5 kg/m², and mean age was 53.4 years.

After 6 months, patients who received telephone coaching as well as health education lost 4.4 kg (9.7 lb), which was 4.8% of their baseline body weight.

In contrast, patients in the control group, who received only health education, gained 0.2 kg (0.3% of their baseline body weight) over the same period.

At the 1-year mark, the telephone weight loss intervention group had maintained the weight they lost at 6 months, whereas the control group gained even more weight and ended with a 0.9% weight gain.

“This equated to a 5.56% weight differential in the two arms demonstrating significant weight loss, which was also clinically significant given that a 3% weight loss is sufficient to improve diabetes and other chronic diseases,” commented lead author Jennifer Ligibel, MD, associate professor of medicine at the Dana-Farber Cancer Institute in Boston. 

She spoke at a press briefing ahead of the annual meeting of the American Society of Clinical Oncology, where the study was presented.

“Our study provides compelling evidence that weight loss interventions can successfully reduce weight in a diverse population of patients with breast cancer,” she said in a statement. At the time of diagnosis, 57% of patients were postmenopausal, 80.3% were White, 12.8% were Black, and 7.3% were Hispanic. 

Patients in the intervention group received a health education program plus a 2-year telephone-based weight loss program that focused on lowering calorie intake and increasing physical activity.

Those in the control group only received the health education program that included nontailored diet and exercise materials, a quarterly newsletter, twice-yearly webinars, and a subscription to a health magazine of the participant’s choosing

“This study was delivered completely remotely and it was done so purposefully because we wanted to develop a program that could work for somebody who lived in a rural area in the middle of the country, as well as it could for somebody who lived close to a cancer center,” Dr. Ligibel commented.

“The next step will be to determine whether this weight loss translates into lower rates of cancer recurrence and mortality. If our trial is successful in improving cancer outcomes, it will have far-reaching implications, demonstrating that weight loss should be incorporated into the standard of care for survivors of breast cancer,” she added.

Commenting on the new findings, ASCO expert Elizabeth Anne Comen, MD, Memorial Sloan Kettering Cancer Center, New York, said: “This study demonstrates that consistent health coaching by telephone – a more accessible, cost-effective approach compared to in-person programs – can significantly help patients with breast cancer lose weight over 1 year and is effective across diverse groups of patients.

“We anxiously await longer-term follow-up to see whether this weight reduction will ultimately improve outcomes for these patients,” she added.

A version of this article first appeared on Medscape.com.

A telephone-based weight loss intervention resulted in clinically meaningful weight loss in patients with breast cancer who were overweight and obese.

The finding comes from a case-control study of 3,136 women who had been diagnosed with stage II or III breast cancer. The average body mass index of participants was 34.5 kg/m², and mean age was 53.4 years.

After 6 months, patients who received telephone coaching as well as health education lost 4.4 kg (9.7 lb), which was 4.8% of their baseline body weight.

In contrast, patients in the control group, who received only health education, gained 0.2 kg (0.3% of their baseline body weight) over the same period.

At the 1-year mark, the telephone weight loss intervention group had maintained the weight they lost at 6 months, whereas the control group gained even more weight and ended with a 0.9% weight gain.

“This equated to a 5.56% weight differential in the two arms demonstrating significant weight loss, which was also clinically significant given that a 3% weight loss is sufficient to improve diabetes and other chronic diseases,” commented lead author Jennifer Ligibel, MD, associate professor of medicine at the Dana-Farber Cancer Institute in Boston. 

She spoke at a press briefing ahead of the annual meeting of the American Society of Clinical Oncology, where the study was presented.

“Our study provides compelling evidence that weight loss interventions can successfully reduce weight in a diverse population of patients with breast cancer,” she said in a statement. At the time of diagnosis, 57% of patients were postmenopausal, 80.3% were White, 12.8% were Black, and 7.3% were Hispanic. 

Patients in the intervention group received a health education program plus a 2-year telephone-based weight loss program that focused on lowering calorie intake and increasing physical activity.

Those in the control group only received the health education program that included nontailored diet and exercise materials, a quarterly newsletter, twice-yearly webinars, and a subscription to a health magazine of the participant’s choosing

“This study was delivered completely remotely and it was done so purposefully because we wanted to develop a program that could work for somebody who lived in a rural area in the middle of the country, as well as it could for somebody who lived close to a cancer center,” Dr. Ligibel commented.

“The next step will be to determine whether this weight loss translates into lower rates of cancer recurrence and mortality. If our trial is successful in improving cancer outcomes, it will have far-reaching implications, demonstrating that weight loss should be incorporated into the standard of care for survivors of breast cancer,” she added.

Commenting on the new findings, ASCO expert Elizabeth Anne Comen, MD, Memorial Sloan Kettering Cancer Center, New York, said: “This study demonstrates that consistent health coaching by telephone – a more accessible, cost-effective approach compared to in-person programs – can significantly help patients with breast cancer lose weight over 1 year and is effective across diverse groups of patients.

“We anxiously await longer-term follow-up to see whether this weight reduction will ultimately improve outcomes for these patients,” she added.

A version of this article first appeared on Medscape.com.

Racial disparities in cancer care have been reduced by Medicaid expansion, suggest new nationwide data.

Across the United States, minority patients with cancer often have worse outcomes than White patients, with Black patients more likely to die sooner.

But new data suggest that these racial disparities are lessening. They come from a cross-sectional cohort study of patients with gastrointestinal cancers and show that the gap in mortality rates was reduced in Medicaid expansion states, compared with nonexpansion states.

The results were particularly notable for Black patients, for whom there was a consistent increase in receiving therapy (chemotherapy or surgery) and a decrease in mortality from stomach, colorectal, and pancreatic cancer, the investigators commented.

The study was highlighted at a press briefing held in advance of the annual meeting of the American Society of Clinical Oncology.

“The findings of this study provide a solid step for closing the gap, showing that the Medicaid expansion opportunity offered by the Affordable Care Act, which allows participating states to improve health care access for disadvantaged populations, results in better cancer outcomes and mitigation of racial disparities in cancer survival,” commented Julie Gralow, MD, chief medical officer and executive vice president of ASCO.

The study included 86,052 patients from the National Cancer Database who, from 2009 to 2019, were diagnosed with pancreatic cancer, colorectal cancer, or stomach cancer. Just over 22,000 patients (25.7%) were Black; the remainder 63,943 (74.3%) were White.

In Medicaid expansion states, there was a greater absolute reduction in 2-year mortality among Black patients with pancreatic cancer of –11.8%, compared with nonexpansion states, at –2.4%, a difference-in-difference (DID) of –9.4%. Additionally, there was an increase in treatment with chemotherapy for patients with stage III-IV pancreatic cancer (4.5% for Black patients and 3.2% for White), compared with patients in nonexpansion states (0.8% for Black patients and 0.4% for White; DID, 3.7% for Black patients and DID, 2.7% for White).

“We found similar results in colorectal cancer, but this effect is primarily observed among the stage IV patients,” commented lead author Naveen Manisundaram, MD, a research fellow at the University of Texas MD Anderson Cancer Center, Houston. “Black patients with advanced stage disease experienced a 12.6% reduction in mortality in expansion states.”

Among Black patients with stage IV colorectal cancer, there was an increase in rates of surgery in expansion states, compared with nonexpansion states (DID, 5.7%). However, there was no increase in treatment with chemotherapy (DID, 1%; P = .66).

Mortality rates for Black patients with stomach cancer also decreased. In expansion states, there was a –13% absolute decrease in mortality, compared with a –5.2% decrease in nonexpansion states.

The investigators noted that Medicaid coverage was a key component in access to care through the Affordable Care Act. About two-thirds (66.7%) of Black patients had Medicaid; 33.3% were uninsured. Coverage was similar among White patients; 64.1% had Medicaid and 35.9% were uninsured.

“Our study provides compelling data that show Medicaid expansion was associated with improvement in survival for both Black and White patients with gastrointestinal cancers. Additionally, it suggests that Medicaid expansion is one potential avenue to mitigate existing racial survival disparities among these patients,” Dr. Manisundaram concluded.

The study was funded by the National Institutes of Health. One coauthor reported an advisory role with Medicaroid. Dr. Gralow has had a consulting or advisory role with Genentech and Roche.

A version of this article first appeared on Medscape.com.

Racial disparities in cancer care have been reduced by Medicaid expansion, suggest new nationwide data.

Across the United States, minority patients with cancer often have worse outcomes than White patients, with Black patients more likely to die sooner.

But new data suggest that these racial disparities are lessening. They come from a cross-sectional cohort study of patients with gastrointestinal cancers and show that the gap in mortality rates was reduced in Medicaid expansion states, compared with nonexpansion states.

The results were particularly notable for Black patients, for whom there was a consistent increase in receiving therapy (chemotherapy or surgery) and a decrease in mortality from stomach, colorectal, and pancreatic cancer, the investigators commented.

The study was highlighted at a press briefing held in advance of the annual meeting of the American Society of Clinical Oncology.

“The findings of this study provide a solid step for closing the gap, showing that the Medicaid expansion opportunity offered by the Affordable Care Act, which allows participating states to improve health care access for disadvantaged populations, results in better cancer outcomes and mitigation of racial disparities in cancer survival,” commented Julie Gralow, MD, chief medical officer and executive vice president of ASCO.

The study included 86,052 patients from the National Cancer Database who, from 2009 to 2019, were diagnosed with pancreatic cancer, colorectal cancer, or stomach cancer. Just over 22,000 patients (25.7%) were Black; the remainder 63,943 (74.3%) were White.

In Medicaid expansion states, there was a greater absolute reduction in 2-year mortality among Black patients with pancreatic cancer of –11.8%, compared with nonexpansion states, at –2.4%, a difference-in-difference (DID) of –9.4%. Additionally, there was an increase in treatment with chemotherapy for patients with stage III-IV pancreatic cancer (4.5% for Black patients and 3.2% for White), compared with patients in nonexpansion states (0.8% for Black patients and 0.4% for White; DID, 3.7% for Black patients and DID, 2.7% for White).

“We found similar results in colorectal cancer, but this effect is primarily observed among the stage IV patients,” commented lead author Naveen Manisundaram, MD, a research fellow at the University of Texas MD Anderson Cancer Center, Houston. “Black patients with advanced stage disease experienced a 12.6% reduction in mortality in expansion states.”

Among Black patients with stage IV colorectal cancer, there was an increase in rates of surgery in expansion states, compared with nonexpansion states (DID, 5.7%). However, there was no increase in treatment with chemotherapy (DID, 1%; P = .66).

Mortality rates for Black patients with stomach cancer also decreased. In expansion states, there was a –13% absolute decrease in mortality, compared with a –5.2% decrease in nonexpansion states.

The investigators noted that Medicaid coverage was a key component in access to care through the Affordable Care Act. About two-thirds (66.7%) of Black patients had Medicaid; 33.3% were uninsured. Coverage was similar among White patients; 64.1% had Medicaid and 35.9% were uninsured.

“Our study provides compelling data that show Medicaid expansion was associated with improvement in survival for both Black and White patients with gastrointestinal cancers. Additionally, it suggests that Medicaid expansion is one potential avenue to mitigate existing racial survival disparities among these patients,” Dr. Manisundaram concluded.

The study was funded by the National Institutes of Health. One coauthor reported an advisory role with Medicaroid. Dr. Gralow has had a consulting or advisory role with Genentech and Roche.

A version of this article first appeared on Medscape.com.

Racial disparities in cancer care have been reduced by Medicaid expansion, suggest new nationwide data.

Across the United States, minority patients with cancer often have worse outcomes than White patients, with Black patients more likely to die sooner.

But new data suggest that these racial disparities are lessening. They come from a cross-sectional cohort study of patients with gastrointestinal cancers and show that the gap in mortality rates was reduced in Medicaid expansion states, compared with nonexpansion states.

The results were particularly notable for Black patients, for whom there was a consistent increase in receiving therapy (chemotherapy or surgery) and a decrease in mortality from stomach, colorectal, and pancreatic cancer, the investigators commented.

The study was highlighted at a press briefing held in advance of the annual meeting of the American Society of Clinical Oncology.

“The findings of this study provide a solid step for closing the gap, showing that the Medicaid expansion opportunity offered by the Affordable Care Act, which allows participating states to improve health care access for disadvantaged populations, results in better cancer outcomes and mitigation of racial disparities in cancer survival,” commented Julie Gralow, MD, chief medical officer and executive vice president of ASCO.

The study included 86,052 patients from the National Cancer Database who, from 2009 to 2019, were diagnosed with pancreatic cancer, colorectal cancer, or stomach cancer. Just over 22,000 patients (25.7%) were Black; the remainder 63,943 (74.3%) were White.

In Medicaid expansion states, there was a greater absolute reduction in 2-year mortality among Black patients with pancreatic cancer of –11.8%, compared with nonexpansion states, at –2.4%, a difference-in-difference (DID) of –9.4%. Additionally, there was an increase in treatment with chemotherapy for patients with stage III-IV pancreatic cancer (4.5% for Black patients and 3.2% for White), compared with patients in nonexpansion states (0.8% for Black patients and 0.4% for White; DID, 3.7% for Black patients and DID, 2.7% for White).

“We found similar results in colorectal cancer, but this effect is primarily observed among the stage IV patients,” commented lead author Naveen Manisundaram, MD, a research fellow at the University of Texas MD Anderson Cancer Center, Houston. “Black patients with advanced stage disease experienced a 12.6% reduction in mortality in expansion states.”

Among Black patients with stage IV colorectal cancer, there was an increase in rates of surgery in expansion states, compared with nonexpansion states (DID, 5.7%). However, there was no increase in treatment with chemotherapy (DID, 1%; P = .66).

Mortality rates for Black patients with stomach cancer also decreased. In expansion states, there was a –13% absolute decrease in mortality, compared with a –5.2% decrease in nonexpansion states.

The investigators noted that Medicaid coverage was a key component in access to care through the Affordable Care Act. About two-thirds (66.7%) of Black patients had Medicaid; 33.3% were uninsured. Coverage was similar among White patients; 64.1% had Medicaid and 35.9% were uninsured.

“Our study provides compelling data that show Medicaid expansion was associated with improvement in survival for both Black and White patients with gastrointestinal cancers. Additionally, it suggests that Medicaid expansion is one potential avenue to mitigate existing racial survival disparities among these patients,” Dr. Manisundaram concluded.

The study was funded by the National Institutes of Health. One coauthor reported an advisory role with Medicaroid. Dr. Gralow has had a consulting or advisory role with Genentech and Roche.

A version of this article first appeared on Medscape.com.

Survival from pediatric acute lymphoblastic leukemia (ALL) in a Mexican hospital improved significantly through a close cross-border collaboration with a nearby U.S. center that provided training and improved access.

A team from a hospital in San Diego combined a previously established training program from the World Health Organization with a new collaboration, which resulted in improvements in care standards and sustainability of care in a center in Tijuana, Mexico, just 23 miles away.

Implementation of the program in 2013 led to a significant 6% improvement in 5-year overall survival for children with ALL.

For patients at standard risk, 5-year overall survival increased from 73% to 100% after implementation of the program.

“This is really remarkable because this survival is the same as we have here in San Diego,” commented Paula Aristizabal, MD, MAS, a pediatric hematologist/oncologist at Rady Children’s Hospital, San Diego, at a press briefing before the annual meeting of the American Society of Clinical Oncology.

The findings show that “sustained improvements in cancer outcomes in low- and middle-income countries [LMICs] are feasible with innovative cross-border programs, particularly in borders that are shared” between a high- and low-income country, she commented. In other words, “it takes a village in both countries” to drive up standards.

Dr. Aristizabal also noted that the partnership will continue with a particularly focus on improving survival among patients with high-risk disease.

“We like to call it ‘twinning,’ because that means we are twins forever,” she said. “This is not a marriage that can be dissolved.”
 

‘Huge survival gap’

“The burden of childhood cancer has increased globally, but unfortunately, survival in low- and middle-income countries has not improved at the same level as in high-income countries,” Dr. Aristizabal commented.

This has resulted in a “huge survival gap” between high-income countries and the LMICs. ALL is now a leading cause of death among children in these countries, she commented.

“This study illustrates collaborative strategies that can be put into place today that could greatly improve outcomes for children with cancer globally,” commented Julie R. Gralow, MD, ASCO chief medical officer and executive vice president.

Speaking at the press conference, she added: “As I’ve heard Princess Dina Mired of Jordan say many times: ‘Your ZIP code should not determine if you survive cancer.’ ”

She said the differences in ALL survival between the United States and Mexico are an “example of children being so close in terms of proximity not having the same advantages.”

Also commenting, ASCO President Eric Winer, MD, from the Yale Cancer Center, New Haven, Conn., asked whether the proximity of the hospitals in San Diego and Tijuana “makes a difference, or do you think this is something that done ... at a distance?”

Dr. Aristizabal said that the proximity between the institutions “has been extremely helpful,” as they can go between hospitals in just 30 minutes.

However, “one of the things that we learned with COVID is that we can do a lot of things remotely,” she answered.

“Some of the projects that we started in Tijuana, through our collaboration with St. Jude Children’s Research Hospital, we have been able to implement in many other centers in Mexico,” she said.
 

Study details

Rady Children’s Hospital partnered with the public sector in Baja California, with the aim of improving outcomes in children’s cancer, she explained.

In 2008, the team collaborated with St. Jude Children’s Research Hospital, Memphis, to establish a training program in the Hospital General Tijuana in Tijuana that shared knowledge, technology, and organizational skills.

The team also consulted on clinical cases and set up education and research programs, all with the aim of building capacity and sustainability in Mexico.

“As the number of leukemia patients increased, we wanted to decrease depending on their international collaborators in the U.S. and ensure long-term sustainability,” Dr. Aristizabal explained.

This led in 2013 to the implementation of the WHO Framework for Action HSS training model, which has several components, including health service delivery.

Combined with the previously established model, the overall goals of the program were to improve health outcomes, systems efficiency, timely access to care, and social and financial risk protection.

Dr. Aristizabal said in an interview that this involved developing highly specific leukemia treatment guidelines, which have now gone through three iterations, as well as guidelines for supportive care.

Working with a local foundation, the team has also “focused on providing psychosocial support, nutritional support, a shelter for families that live 12-14 hours away from the pediatric cancer center, as well as food subsidies, trying to address financial toxicity and food insecurity in these families.”
 

Impact of the collaboration

To assess the impact of the WHO framework, the researchers conducted a study that involved 109 children with ALL who were treated at Hospital General Tijuana over the preimplementation phase in 2008-2012 and the postimplementation phase in 2013-2017.

The mean age of the patients was 7.04 years, and 50.4% were girls. The majority (67%) were classified as having high-risk disease.

Over the entire study period, the 5-year overall survival rate was 65%. Analysis revealed that between the pre- and postimplementation periods, 5-year overall survival increased from 59% to 65%, which Dr. Aristizabal described as “a significant improvement.”

Among high-risk patients, the improvement in 5-year survival between the pre- and postimplementation period went from 48% to 55%.

“This is an area for improvement,” Dr. Aristizabal said, “and we’re working on additional strategies to help improve survival for high-risk patients.

The study was funded by Rady Children’s Hospital, the Mexican Secretary of Health, and the Patronato Foundation. Dr. Aristizabal and coauthors reported no relevant financial relationships. Dr. Gralow reported relationships with Genentech and Roche. Dr. Winer reported relationships with Leap Therapeutics, Jounce Therapeutics, Carrick Therapeutics, and Genentech.

A version of this article first appeared on Medscape.com.

Survival from pediatric acute lymphoblastic leukemia (ALL) in a Mexican hospital improved significantly through a close cross-border collaboration with a nearby U.S. center that provided training and improved access.

A team from a hospital in San Diego combined a previously established training program from the World Health Organization with a new collaboration, which resulted in improvements in care standards and sustainability of care in a center in Tijuana, Mexico, just 23 miles away.

Implementation of the program in 2013 led to a significant 6% improvement in 5-year overall survival for children with ALL.

For patients at standard risk, 5-year overall survival increased from 73% to 100% after implementation of the program.

“This is really remarkable because this survival is the same as we have here in San Diego,” commented Paula Aristizabal, MD, MAS, a pediatric hematologist/oncologist at Rady Children’s Hospital, San Diego, at a press briefing before the annual meeting of the American Society of Clinical Oncology.

The findings show that “sustained improvements in cancer outcomes in low- and middle-income countries [LMICs] are feasible with innovative cross-border programs, particularly in borders that are shared” between a high- and low-income country, she commented. In other words, “it takes a village in both countries” to drive up standards.

Dr. Aristizabal also noted that the partnership will continue with a particularly focus on improving survival among patients with high-risk disease.

“We like to call it ‘twinning,’ because that means we are twins forever,” she said. “This is not a marriage that can be dissolved.”
 

‘Huge survival gap’

“The burden of childhood cancer has increased globally, but unfortunately, survival in low- and middle-income countries has not improved at the same level as in high-income countries,” Dr. Aristizabal commented.

This has resulted in a “huge survival gap” between high-income countries and the LMICs. ALL is now a leading cause of death among children in these countries, she commented.

“This study illustrates collaborative strategies that can be put into place today that could greatly improve outcomes for children with cancer globally,” commented Julie R. Gralow, MD, ASCO chief medical officer and executive vice president.

Speaking at the press conference, she added: “As I’ve heard Princess Dina Mired of Jordan say many times: ‘Your ZIP code should not determine if you survive cancer.’ ”

She said the differences in ALL survival between the United States and Mexico are an “example of children being so close in terms of proximity not having the same advantages.”

Also commenting, ASCO President Eric Winer, MD, from the Yale Cancer Center, New Haven, Conn., asked whether the proximity of the hospitals in San Diego and Tijuana “makes a difference, or do you think this is something that done ... at a distance?”

Dr. Aristizabal said that the proximity between the institutions “has been extremely helpful,” as they can go between hospitals in just 30 minutes.

However, “one of the things that we learned with COVID is that we can do a lot of things remotely,” she answered.

“Some of the projects that we started in Tijuana, through our collaboration with St. Jude Children’s Research Hospital, we have been able to implement in many other centers in Mexico,” she said.
 

Study details

Rady Children’s Hospital partnered with the public sector in Baja California, with the aim of improving outcomes in children’s cancer, she explained.

In 2008, the team collaborated with St. Jude Children’s Research Hospital, Memphis, to establish a training program in the Hospital General Tijuana in Tijuana that shared knowledge, technology, and organizational skills.

The team also consulted on clinical cases and set up education and research programs, all with the aim of building capacity and sustainability in Mexico.

“As the number of leukemia patients increased, we wanted to decrease depending on their international collaborators in the U.S. and ensure long-term sustainability,” Dr. Aristizabal explained.

This led in 2013 to the implementation of the WHO Framework for Action HSS training model, which has several components, including health service delivery.

Combined with the previously established model, the overall goals of the program were to improve health outcomes, systems efficiency, timely access to care, and social and financial risk protection.

Dr. Aristizabal said in an interview that this involved developing highly specific leukemia treatment guidelines, which have now gone through three iterations, as well as guidelines for supportive care.

Working with a local foundation, the team has also “focused on providing psychosocial support, nutritional support, a shelter for families that live 12-14 hours away from the pediatric cancer center, as well as food subsidies, trying to address financial toxicity and food insecurity in these families.”
 

Impact of the collaboration

To assess the impact of the WHO framework, the researchers conducted a study that involved 109 children with ALL who were treated at Hospital General Tijuana over the preimplementation phase in 2008-2012 and the postimplementation phase in 2013-2017.

The mean age of the patients was 7.04 years, and 50.4% were girls. The majority (67%) were classified as having high-risk disease.

Over the entire study period, the 5-year overall survival rate was 65%. Analysis revealed that between the pre- and postimplementation periods, 5-year overall survival increased from 59% to 65%, which Dr. Aristizabal described as “a significant improvement.”

Among high-risk patients, the improvement in 5-year survival between the pre- and postimplementation period went from 48% to 55%.

“This is an area for improvement,” Dr. Aristizabal said, “and we’re working on additional strategies to help improve survival for high-risk patients.

The study was funded by Rady Children’s Hospital, the Mexican Secretary of Health, and the Patronato Foundation. Dr. Aristizabal and coauthors reported no relevant financial relationships. Dr. Gralow reported relationships with Genentech and Roche. Dr. Winer reported relationships with Leap Therapeutics, Jounce Therapeutics, Carrick Therapeutics, and Genentech.

A version of this article first appeared on Medscape.com.

Survival from pediatric acute lymphoblastic leukemia (ALL) in a Mexican hospital improved significantly through a close cross-border collaboration with a nearby U.S. center that provided training and improved access.

A team from a hospital in San Diego combined a previously established training program from the World Health Organization with a new collaboration, which resulted in improvements in care standards and sustainability of care in a center in Tijuana, Mexico, just 23 miles away.

Implementation of the program in 2013 led to a significant 6% improvement in 5-year overall survival for children with ALL.

For patients at standard risk, 5-year overall survival increased from 73% to 100% after implementation of the program.

“This is really remarkable because this survival is the same as we have here in San Diego,” commented Paula Aristizabal, MD, MAS, a pediatric hematologist/oncologist at Rady Children’s Hospital, San Diego, at a press briefing before the annual meeting of the American Society of Clinical Oncology.

The findings show that “sustained improvements in cancer outcomes in low- and middle-income countries [LMICs] are feasible with innovative cross-border programs, particularly in borders that are shared” between a high- and low-income country, she commented. In other words, “it takes a village in both countries” to drive up standards.

Dr. Aristizabal also noted that the partnership will continue with a particularly focus on improving survival among patients with high-risk disease.

“We like to call it ‘twinning,’ because that means we are twins forever,” she said. “This is not a marriage that can be dissolved.”
 

‘Huge survival gap’

“The burden of childhood cancer has increased globally, but unfortunately, survival in low- and middle-income countries has not improved at the same level as in high-income countries,” Dr. Aristizabal commented.

This has resulted in a “huge survival gap” between high-income countries and the LMICs. ALL is now a leading cause of death among children in these countries, she commented.

“This study illustrates collaborative strategies that can be put into place today that could greatly improve outcomes for children with cancer globally,” commented Julie R. Gralow, MD, ASCO chief medical officer and executive vice president.

Speaking at the press conference, she added: “As I’ve heard Princess Dina Mired of Jordan say many times: ‘Your ZIP code should not determine if you survive cancer.’ ”

She said the differences in ALL survival between the United States and Mexico are an “example of children being so close in terms of proximity not having the same advantages.”

Also commenting, ASCO President Eric Winer, MD, from the Yale Cancer Center, New Haven, Conn., asked whether the proximity of the hospitals in San Diego and Tijuana “makes a difference, or do you think this is something that done ... at a distance?”

Dr. Aristizabal said that the proximity between the institutions “has been extremely helpful,” as they can go between hospitals in just 30 minutes.

However, “one of the things that we learned with COVID is that we can do a lot of things remotely,” she answered.

“Some of the projects that we started in Tijuana, through our collaboration with St. Jude Children’s Research Hospital, we have been able to implement in many other centers in Mexico,” she said.
 

Study details

Rady Children’s Hospital partnered with the public sector in Baja California, with the aim of improving outcomes in children’s cancer, she explained.

In 2008, the team collaborated with St. Jude Children’s Research Hospital, Memphis, to establish a training program in the Hospital General Tijuana in Tijuana that shared knowledge, technology, and organizational skills.

The team also consulted on clinical cases and set up education and research programs, all with the aim of building capacity and sustainability in Mexico.

“As the number of leukemia patients increased, we wanted to decrease depending on their international collaborators in the U.S. and ensure long-term sustainability,” Dr. Aristizabal explained.

This led in 2013 to the implementation of the WHO Framework for Action HSS training model, which has several components, including health service delivery.

Combined with the previously established model, the overall goals of the program were to improve health outcomes, systems efficiency, timely access to care, and social and financial risk protection.

Dr. Aristizabal said in an interview that this involved developing highly specific leukemia treatment guidelines, which have now gone through three iterations, as well as guidelines for supportive care.

Working with a local foundation, the team has also “focused on providing psychosocial support, nutritional support, a shelter for families that live 12-14 hours away from the pediatric cancer center, as well as food subsidies, trying to address financial toxicity and food insecurity in these families.”
 

Impact of the collaboration

To assess the impact of the WHO framework, the researchers conducted a study that involved 109 children with ALL who were treated at Hospital General Tijuana over the preimplementation phase in 2008-2012 and the postimplementation phase in 2013-2017.

The mean age of the patients was 7.04 years, and 50.4% were girls. The majority (67%) were classified as having high-risk disease.

Over the entire study period, the 5-year overall survival rate was 65%. Analysis revealed that between the pre- and postimplementation periods, 5-year overall survival increased from 59% to 65%, which Dr. Aristizabal described as “a significant improvement.”

Among high-risk patients, the improvement in 5-year survival between the pre- and postimplementation period went from 48% to 55%.

“This is an area for improvement,” Dr. Aristizabal said, “and we’re working on additional strategies to help improve survival for high-risk patients.

The study was funded by Rady Children’s Hospital, the Mexican Secretary of Health, and the Patronato Foundation. Dr. Aristizabal and coauthors reported no relevant financial relationships. Dr. Gralow reported relationships with Genentech and Roche. Dr. Winer reported relationships with Leap Therapeutics, Jounce Therapeutics, Carrick Therapeutics, and Genentech.

A version of this article first appeared on Medscape.com.

CHICAGO – Nearly all patients who were diverted from chemotherapy prior to surgery for HER2-positive early breast cancer survived without cancer recurrence for 3 years, according to new findings from a phase 2 trial.

The secondary primary endpoint results from the PHERgain study, presented at the annual meeting of the American Society of Clinical Oncology, provide more evidence to support a strategy that avoids chemotherapy as long as patients show signs of response to hormone therapy via PET scans. The results revealed that 98.8% (95% confidence interval, 96.3-100.0) of 86 patients who received treatment with trastuzumab and pertuzumab – but no chemotherapy – remained cancer free and alive 3 years after surgery (invasive disease–free survival).

“Only 1 out of 86 patients experience disease recurrence ... in those patients who never received chemotherapy,” said study lead author Javier Cortés, MD, PhD, an oncologist with Ramón y Cajal University Hospital, Madrid, during his presentation at the meeting.

As Dr. Cortés noted, HER2-targeted therapies such as trastuzumab have improved lifespans in women with HER2-positive early breast cancer, sparking interest in whether chemotherapy can be de-escalated. The PHERgain study examines whether it can be avoided entirely.

The primary endpoint results of the multicenter, open-label, noncomparative study were released in The Lancet Oncology in 2021.
 

Study methods and results

At 45 hospitals in Europe, patients with HER2-positive, stage I-IIIA, invasive, operable breast cancer were randomly assigned between 2017 and 2019 to receive chemotherapy prior to surgery (n = 71, group A) or to only receive hormone therapy with trastuzumab and pertuzumab, unless PET scans suggested they needed chemotherapy because they weren’t properly responding (n = 285, group B).

At a median follow-up of 5.7 months, 86 patients in the latter group had a pathological complete response and therefore met the first primary endpoint.

The new analysis tracked patients for 3 years after they underwent surgery (n = 63 and 267 for patients in groups A and B, respectively). As previously noted, at a median follow-up of 43.3 months (range, 2.4-63.0 months), only 1 of 86 patients in group B who didn’t receive chemotherapy had a recurrence of cancer (a locoregional ipsilateral recurrence). The 98.8% invasive disease–free survival rate was higher that what was seen for patients in group B as a whole (95.4% invasive disease–free survival, 95% CI, 92.8%-98.0%, P < .001). The 95.4% met the study’s second primary endpoint.

Treatment-related adverse events were higher in the group that received chemotherapy only (group A) versus group B (experiencing an adverse event grade of at least 3, 61.8% vs. 32.9%, respectively, P < .001; serious adverse events, 27.9% vs. 13.8%, respectively; P = .01). Those in group B who didn’t receive any chemotherapy had very few treatment-related adverse events that were considered being greater than a grade 3 (1.2%) and no treatment-related serious adverse events. The researchers reported that there were no treatment-related deaths.

In an interview, Kevin Kalinsky, MD, MS, an oncologist at Emory University Hospital, Atlanta, and cochair of the session where the study data was presented, said the “intriguing and meaningful [findings] highlight the fact that not everyone may need chemotherapy.” In the big picture, the results reflect a movement toward “individualized, personalized medicine, and moving away from one size fits all.”

Should clinicians embrace the study’s strategy, and what are the costs?

“There may be a need for additional evaluation in a large phase 3 trial,” Dr. Kalinsky said.

There was no discussion about cost during the ASCO presentation. However, Dr. Kalinsky noted that there will be cost savings if patients don’t need chemotherapy. But he added that insurers in the United States don’t always cover the PET scans that are needed to evaluate whether patients are responding to hormone therapy.

The study is funded by Roche and sponsored by MedSIR. Dr. Cortes has multiple disclosures, including stock/other ownership in Leuko, MedSIR, and Nektar and honoraria from AstraZeneca, Celgene, Daiichi Sankyo, Eisai, Lilly, Merck Sharp & Dohme, Novartis, Pfizer, Roche, and Samsung. Dr. Kalinsky has no disclosures.

CHICAGO – Nearly all patients who were diverted from chemotherapy prior to surgery for HER2-positive early breast cancer survived without cancer recurrence for 3 years, according to new findings from a phase 2 trial.

The secondary primary endpoint results from the PHERgain study, presented at the annual meeting of the American Society of Clinical Oncology, provide more evidence to support a strategy that avoids chemotherapy as long as patients show signs of response to hormone therapy via PET scans. The results revealed that 98.8% (95% confidence interval, 96.3-100.0) of 86 patients who received treatment with trastuzumab and pertuzumab – but no chemotherapy – remained cancer free and alive 3 years after surgery (invasive disease–free survival).

“Only 1 out of 86 patients experience disease recurrence ... in those patients who never received chemotherapy,” said study lead author Javier Cortés, MD, PhD, an oncologist with Ramón y Cajal University Hospital, Madrid, during his presentation at the meeting.

As Dr. Cortés noted, HER2-targeted therapies such as trastuzumab have improved lifespans in women with HER2-positive early breast cancer, sparking interest in whether chemotherapy can be de-escalated. The PHERgain study examines whether it can be avoided entirely.

The primary endpoint results of the multicenter, open-label, noncomparative study were released in The Lancet Oncology in 2021.
 

Study methods and results

At 45 hospitals in Europe, patients with HER2-positive, stage I-IIIA, invasive, operable breast cancer were randomly assigned between 2017 and 2019 to receive chemotherapy prior to surgery (n = 71, group A) or to only receive hormone therapy with trastuzumab and pertuzumab, unless PET scans suggested they needed chemotherapy because they weren’t properly responding (n = 285, group B).

At a median follow-up of 5.7 months, 86 patients in the latter group had a pathological complete response and therefore met the first primary endpoint.

The new analysis tracked patients for 3 years after they underwent surgery (n = 63 and 267 for patients in groups A and B, respectively). As previously noted, at a median follow-up of 43.3 months (range, 2.4-63.0 months), only 1 of 86 patients in group B who didn’t receive chemotherapy had a recurrence of cancer (a locoregional ipsilateral recurrence). The 98.8% invasive disease–free survival rate was higher that what was seen for patients in group B as a whole (95.4% invasive disease–free survival, 95% CI, 92.8%-98.0%, P < .001). The 95.4% met the study’s second primary endpoint.

Treatment-related adverse events were higher in the group that received chemotherapy only (group A) versus group B (experiencing an adverse event grade of at least 3, 61.8% vs. 32.9%, respectively, P < .001; serious adverse events, 27.9% vs. 13.8%, respectively; P = .01). Those in group B who didn’t receive any chemotherapy had very few treatment-related adverse events that were considered being greater than a grade 3 (1.2%) and no treatment-related serious adverse events. The researchers reported that there were no treatment-related deaths.

In an interview, Kevin Kalinsky, MD, MS, an oncologist at Emory University Hospital, Atlanta, and cochair of the session where the study data was presented, said the “intriguing and meaningful [findings] highlight the fact that not everyone may need chemotherapy.” In the big picture, the results reflect a movement toward “individualized, personalized medicine, and moving away from one size fits all.”

Should clinicians embrace the study’s strategy, and what are the costs?

“There may be a need for additional evaluation in a large phase 3 trial,” Dr. Kalinsky said.

There was no discussion about cost during the ASCO presentation. However, Dr. Kalinsky noted that there will be cost savings if patients don’t need chemotherapy. But he added that insurers in the United States don’t always cover the PET scans that are needed to evaluate whether patients are responding to hormone therapy.

The study is funded by Roche and sponsored by MedSIR. Dr. Cortes has multiple disclosures, including stock/other ownership in Leuko, MedSIR, and Nektar and honoraria from AstraZeneca, Celgene, Daiichi Sankyo, Eisai, Lilly, Merck Sharp & Dohme, Novartis, Pfizer, Roche, and Samsung. Dr. Kalinsky has no disclosures.

CHICAGO – Nearly all patients who were diverted from chemotherapy prior to surgery for HER2-positive early breast cancer survived without cancer recurrence for 3 years, according to new findings from a phase 2 trial.

The secondary primary endpoint results from the PHERgain study, presented at the annual meeting of the American Society of Clinical Oncology, provide more evidence to support a strategy that avoids chemotherapy as long as patients show signs of response to hormone therapy via PET scans. The results revealed that 98.8% (95% confidence interval, 96.3-100.0) of 86 patients who received treatment with trastuzumab and pertuzumab – but no chemotherapy – remained cancer free and alive 3 years after surgery (invasive disease–free survival).

“Only 1 out of 86 patients experience disease recurrence ... in those patients who never received chemotherapy,” said study lead author Javier Cortés, MD, PhD, an oncologist with Ramón y Cajal University Hospital, Madrid, during his presentation at the meeting.

As Dr. Cortés noted, HER2-targeted therapies such as trastuzumab have improved lifespans in women with HER2-positive early breast cancer, sparking interest in whether chemotherapy can be de-escalated. The PHERgain study examines whether it can be avoided entirely.

The primary endpoint results of the multicenter, open-label, noncomparative study were released in The Lancet Oncology in 2021.
 

Study methods and results

At 45 hospitals in Europe, patients with HER2-positive, stage I-IIIA, invasive, operable breast cancer were randomly assigned between 2017 and 2019 to receive chemotherapy prior to surgery (n = 71, group A) or to only receive hormone therapy with trastuzumab and pertuzumab, unless PET scans suggested they needed chemotherapy because they weren’t properly responding (n = 285, group B).

At a median follow-up of 5.7 months, 86 patients in the latter group had a pathological complete response and therefore met the first primary endpoint.

The new analysis tracked patients for 3 years after they underwent surgery (n = 63 and 267 for patients in groups A and B, respectively). As previously noted, at a median follow-up of 43.3 months (range, 2.4-63.0 months), only 1 of 86 patients in group B who didn’t receive chemotherapy had a recurrence of cancer (a locoregional ipsilateral recurrence). The 98.8% invasive disease–free survival rate was higher that what was seen for patients in group B as a whole (95.4% invasive disease–free survival, 95% CI, 92.8%-98.0%, P < .001). The 95.4% met the study’s second primary endpoint.

Treatment-related adverse events were higher in the group that received chemotherapy only (group A) versus group B (experiencing an adverse event grade of at least 3, 61.8% vs. 32.9%, respectively, P < .001; serious adverse events, 27.9% vs. 13.8%, respectively; P = .01). Those in group B who didn’t receive any chemotherapy had very few treatment-related adverse events that were considered being greater than a grade 3 (1.2%) and no treatment-related serious adverse events. The researchers reported that there were no treatment-related deaths.

In an interview, Kevin Kalinsky, MD, MS, an oncologist at Emory University Hospital, Atlanta, and cochair of the session where the study data was presented, said the “intriguing and meaningful [findings] highlight the fact that not everyone may need chemotherapy.” In the big picture, the results reflect a movement toward “individualized, personalized medicine, and moving away from one size fits all.”

Should clinicians embrace the study’s strategy, and what are the costs?

“There may be a need for additional evaluation in a large phase 3 trial,” Dr. Kalinsky said.

There was no discussion about cost during the ASCO presentation. However, Dr. Kalinsky noted that there will be cost savings if patients don’t need chemotherapy. But he added that insurers in the United States don’t always cover the PET scans that are needed to evaluate whether patients are responding to hormone therapy.

The study is funded by Roche and sponsored by MedSIR. Dr. Cortes has multiple disclosures, including stock/other ownership in Leuko, MedSIR, and Nektar and honoraria from AstraZeneca, Celgene, Daiichi Sankyo, Eisai, Lilly, Merck Sharp & Dohme, Novartis, Pfizer, Roche, and Samsung. Dr. Kalinsky has no disclosures.

CHICAGO – A new meta-analysis of 25 studies dating back to 1948 provides more evidence linking ovarian suppression/ablation in premenopausal women to less recurrence and more survival in the long term after breast cancer.

Those who didn’t take tamoxifen – a standard treatment today – seemed to gain an especially large benefit.

The randomized studies, which included 14,999 subjects, suggest that ovarian suppression/ablation can provide a “substantial and persistent benefit for premenopausal women,” said study lead author and medical statistician Richard G. Gray, MA, MSc, of the University of Oxford (England), in a presentation at the annual meeting of the American Society of Clinical Oncology.

The study authors sought to better understand the value of ovarian suppression/ablation, which may prevent estrogen from stimulating residual cancer after treatment. According to the study abstract, premenopausal women with estrogen receptor–positive tumors may be at special risk of cancer recurrence because of this phenomenon.

Recently published research has supported hormone therapy targeting the ovaries in this population.

“Ovarian suppression with an aromatase inhibitor should become the preferred initial hormone therapy recommendation for all premenopausal women with high-risk (i.e., grade 3, T2, and age less than 35 years) estrogen receptor–positive breast cancer,” declared a 2022 editorial in the Journal of Clinical Oncology that noted the positive findings of a 13-year follow-up analysis of 2 studies.
 

Study methods and results

For the meta-analysis released at ASCO, researchers examined 25 trials that randomized women with breast cancer who were premenopausal. In some cases, the women went through menopause during the trials, and in some other cases, ovarian suppression/ablation brought on early menopause.

Among women who had received no chemotherapy or remained premenopausal after chemotherapy (n = 7,213), cancer recurred within 15 years in 41% of the controls and 28.9% of the ovarian suppression/ablation group, (relative risk, 0.70; 95% confidence interval, 0.63-0.78; P < .00001).

Among these same women, breast cancer mortality at 20 years was 34.7% in the controls and 23.8% in the ovarian suppression/ablation group (RR, 0.71; 95% CI, 0.62-0.81; P < .00001).

The researchers also looked at the same group of women and divided it into those who didn’t take tamoxifen (2,362) and those who did take tamoxifen (4,851). The drug is now the preferred option “for treatment of breast cancer.”

Among those who did not take tamoxifen, the recurrence rate at 15 years was 56.5% among controls versus 39.0% among those in the ovarian suppression/ablation group (RR, 0.61; 95% CI, 0.52-0.72; P < .00001). The gap shrunk in those who did take tamoxifen: recurrence occurred in 30.3% of the control group and 25.8% of the ovarian suppression/ablation group (RR, 0.80; 95% CI, 0.70-0.93; P = .002).
 

Tamoxifen on its own seems to have powerful positive effect

The findings suggest that tamoxifen on its own has a powerful positive effect, leaving less extra benefit for ovarian suppression/ablation to provide, said Mr. Gray.

The meta-analysis didn’t examine cost or cost-effectiveness.

Kevin Kalinsky, MD, MS, an oncologist at Emory University Hospital, Atlanta, cochair of the session where the meta-analysis data was presented, said in an interview that the new research shows that “patients can really benefit from ovarian function suppression.” Even so, recent trials suggested that the strategy is uncommon, used by less than 20% of high-risk patients.

Dr. Kalinsky noted that suppressing the ovaries with medication or removing the ovaries entirely can cause early menopause and eliminate fertility.

“There can be definitely be side effects like hot flashes and tolerability issues,” he said, “along with an impact on quality of life.”

According to the U.K. organization Breast Cancer Now,“ovarian suppression achieved by hormone therapy or surgery is more likely to cause menopausal symptoms than a natural menopause.” In addition, “research has shown that younger women are more likely to stop taking hormone therapy early if they don’t get help with possible side effects.”

It’s important for patients and providers to have full discussions about possible strategies, Dr. Kalinsky said.

No information about study funding was provided. Dr. Kalinsky and Mr. Gray had no financial conflicts.

CHICAGO – A new meta-analysis of 25 studies dating back to 1948 provides more evidence linking ovarian suppression/ablation in premenopausal women to less recurrence and more survival in the long term after breast cancer.

Those who didn’t take tamoxifen – a standard treatment today – seemed to gain an especially large benefit.

The randomized studies, which included 14,999 subjects, suggest that ovarian suppression/ablation can provide a “substantial and persistent benefit for premenopausal women,” said study lead author and medical statistician Richard G. Gray, MA, MSc, of the University of Oxford (England), in a presentation at the annual meeting of the American Society of Clinical Oncology.

The study authors sought to better understand the value of ovarian suppression/ablation, which may prevent estrogen from stimulating residual cancer after treatment. According to the study abstract, premenopausal women with estrogen receptor–positive tumors may be at special risk of cancer recurrence because of this phenomenon.

Recently published research has supported hormone therapy targeting the ovaries in this population.

“Ovarian suppression with an aromatase inhibitor should become the preferred initial hormone therapy recommendation for all premenopausal women with high-risk (i.e., grade 3, T2, and age less than 35 years) estrogen receptor–positive breast cancer,” declared a 2022 editorial in the Journal of Clinical Oncology that noted the positive findings of a 13-year follow-up analysis of 2 studies.
 

Study methods and results

For the meta-analysis released at ASCO, researchers examined 25 trials that randomized women with breast cancer who were premenopausal. In some cases, the women went through menopause during the trials, and in some other cases, ovarian suppression/ablation brought on early menopause.

Among women who had received no chemotherapy or remained premenopausal after chemotherapy (n = 7,213), cancer recurred within 15 years in 41% of the controls and 28.9% of the ovarian suppression/ablation group, (relative risk, 0.70; 95% confidence interval, 0.63-0.78; P < .00001).

Among these same women, breast cancer mortality at 20 years was 34.7% in the controls and 23.8% in the ovarian suppression/ablation group (RR, 0.71; 95% CI, 0.62-0.81; P < .00001).

The researchers also looked at the same group of women and divided it into those who didn’t take tamoxifen (2,362) and those who did take tamoxifen (4,851). The drug is now the preferred option “for treatment of breast cancer.”

Among those who did not take tamoxifen, the recurrence rate at 15 years was 56.5% among controls versus 39.0% among those in the ovarian suppression/ablation group (RR, 0.61; 95% CI, 0.52-0.72; P < .00001). The gap shrunk in those who did take tamoxifen: recurrence occurred in 30.3% of the control group and 25.8% of the ovarian suppression/ablation group (RR, 0.80; 95% CI, 0.70-0.93; P = .002).
 

Tamoxifen on its own seems to have powerful positive effect

The findings suggest that tamoxifen on its own has a powerful positive effect, leaving less extra benefit for ovarian suppression/ablation to provide, said Mr. Gray.

The meta-analysis didn’t examine cost or cost-effectiveness.

Kevin Kalinsky, MD, MS, an oncologist at Emory University Hospital, Atlanta, cochair of the session where the meta-analysis data was presented, said in an interview that the new research shows that “patients can really benefit from ovarian function suppression.” Even so, recent trials suggested that the strategy is uncommon, used by less than 20% of high-risk patients.

Dr. Kalinsky noted that suppressing the ovaries with medication or removing the ovaries entirely can cause early menopause and eliminate fertility.

“There can be definitely be side effects like hot flashes and tolerability issues,” he said, “along with an impact on quality of life.”

According to the U.K. organization Breast Cancer Now,“ovarian suppression achieved by hormone therapy or surgery is more likely to cause menopausal symptoms than a natural menopause.” In addition, “research has shown that younger women are more likely to stop taking hormone therapy early if they don’t get help with possible side effects.”

It’s important for patients and providers to have full discussions about possible strategies, Dr. Kalinsky said.

No information about study funding was provided. Dr. Kalinsky and Mr. Gray had no financial conflicts.

CHICAGO – A new meta-analysis of 25 studies dating back to 1948 provides more evidence linking ovarian suppression/ablation in premenopausal women to less recurrence and more survival in the long term after breast cancer.

Those who didn’t take tamoxifen – a standard treatment today – seemed to gain an especially large benefit.

The randomized studies, which included 14,999 subjects, suggest that ovarian suppression/ablation can provide a “substantial and persistent benefit for premenopausal women,” said study lead author and medical statistician Richard G. Gray, MA, MSc, of the University of Oxford (England), in a presentation at the annual meeting of the American Society of Clinical Oncology.

The study authors sought to better understand the value of ovarian suppression/ablation, which may prevent estrogen from stimulating residual cancer after treatment. According to the study abstract, premenopausal women with estrogen receptor–positive tumors may be at special risk of cancer recurrence because of this phenomenon.

Recently published research has supported hormone therapy targeting the ovaries in this population.

“Ovarian suppression with an aromatase inhibitor should become the preferred initial hormone therapy recommendation for all premenopausal women with high-risk (i.e., grade 3, T2, and age less than 35 years) estrogen receptor–positive breast cancer,” declared a 2022 editorial in the Journal of Clinical Oncology that noted the positive findings of a 13-year follow-up analysis of 2 studies.
 

Study methods and results

For the meta-analysis released at ASCO, researchers examined 25 trials that randomized women with breast cancer who were premenopausal. In some cases, the women went through menopause during the trials, and in some other cases, ovarian suppression/ablation brought on early menopause.

Among women who had received no chemotherapy or remained premenopausal after chemotherapy (n = 7,213), cancer recurred within 15 years in 41% of the controls and 28.9% of the ovarian suppression/ablation group, (relative risk, 0.70; 95% confidence interval, 0.63-0.78; P < .00001).

Among these same women, breast cancer mortality at 20 years was 34.7% in the controls and 23.8% in the ovarian suppression/ablation group (RR, 0.71; 95% CI, 0.62-0.81; P < .00001).

The researchers also looked at the same group of women and divided it into those who didn’t take tamoxifen (2,362) and those who did take tamoxifen (4,851). The drug is now the preferred option “for treatment of breast cancer.”

Among those who did not take tamoxifen, the recurrence rate at 15 years was 56.5% among controls versus 39.0% among those in the ovarian suppression/ablation group (RR, 0.61; 95% CI, 0.52-0.72; P < .00001). The gap shrunk in those who did take tamoxifen: recurrence occurred in 30.3% of the control group and 25.8% of the ovarian suppression/ablation group (RR, 0.80; 95% CI, 0.70-0.93; P = .002).
 

Tamoxifen on its own seems to have powerful positive effect

The findings suggest that tamoxifen on its own has a powerful positive effect, leaving less extra benefit for ovarian suppression/ablation to provide, said Mr. Gray.

The meta-analysis didn’t examine cost or cost-effectiveness.

Kevin Kalinsky, MD, MS, an oncologist at Emory University Hospital, Atlanta, cochair of the session where the meta-analysis data was presented, said in an interview that the new research shows that “patients can really benefit from ovarian function suppression.” Even so, recent trials suggested that the strategy is uncommon, used by less than 20% of high-risk patients.

Dr. Kalinsky noted that suppressing the ovaries with medication or removing the ovaries entirely can cause early menopause and eliminate fertility.

“There can be definitely be side effects like hot flashes and tolerability issues,” he said, “along with an impact on quality of life.”

According to the U.K. organization Breast Cancer Now,“ovarian suppression achieved by hormone therapy or surgery is more likely to cause menopausal symptoms than a natural menopause.” In addition, “research has shown that younger women are more likely to stop taking hormone therapy early if they don’t get help with possible side effects.”

It’s important for patients and providers to have full discussions about possible strategies, Dr. Kalinsky said.

No information about study funding was provided. Dr. Kalinsky and Mr. Gray had no financial conflicts.

CHICAGO – In a phase 1 small cell lung cancer (SCLC) trial, a bispecific antibody that targets T cells and the inhibitory notch ligand known as delta-like ligand 3 (DLL3) showed a good safety profile and encouraging signs of efficacy, including one response that lasted more than a year.

The antibody promotes the destruction of tumor cells by T cells by acting as a bridge between T cells and tumors.

SCLC has largely resisted efforts to identify unique surface markers. DLL3 is an exception: It is rarely expressed in normal cells, and it seems to be important to tumor biology, according to Martin Wermke, MD, who presented the study at the annual meeting of the American Society of Clinical Oncology.
 

A rare SCLC biomarker

“The problem, I think, is that small cell [lung cancer] with its high mutational burden is a bunch of many different subentities and you will probably not find a single driver mutation as you do in non–small cell lung cancer. So in that [way] it’s different in its biology,” said Dr. Wermke, professor of experimental tumor therapy at the National Center for Tumor Diseases in Dresden, Germany.

Nevertheless, DLL3 is a sensitive biomarker, with over 90% of SCLC tumors positive for the surface marker, according to Dr. Wermke. “It’s one of the first which proved to be a reliable [SCLC] biomarker for therapeutic approaches,” said Dr. Wermke.

This isn’t the first clinical experience with DLL3. An anti-DLL3 antibody was used as part of an antibody-drug conjugate called Rova-T, which failed a phase 3 trial in SCLC in 2021 and was subsequently canceled by AbbVie, but Dr. Wermke believes that the issue was with the drug and linker (a chemical tag that links the cytotoxic drug to the antibody, which is designed to release the drug in an appropriate environment such as the interior of a tumor cell after an antibody-drug conjugate has been internalized by the tumor cell), not DLL3. DLL3 is also being investigated as a component of chimeric antigen receptor T-cell therapy, though no clinical results have been reported, Dr. Wermke said.
 

Study methods and results

The study included 107 patients. The median age was 60.0 years, and 57% were male. To be included, patients had to have advanced SCLC, large cell neuroendocrine carcinoma, or extrapulmonary neuroendocrine carcinoma, as well as test positive for DLL3 expression.

The drug was well tolerated: 86% of patients experienced at least one treatment-related adverse event: 59% with a grade 1-2 TRAE and 27% with a grade 3-5 TRAE. Cytokine release syndrome (CRS) occurred in 59% of patients, but just 2% were grade 3-5. TRAEs led to discontinuation in 4% of patients. Physicians were able to manage CRS with supportive care, steroids, and anti–interleukin-6 receptor antibodies.

The treatment showed signs of efficacy, with partial responses occurring in 18% of patients, stable disease in 23%, progressive disease in 45%, while 13% were not evaluable.

At doses of 90 mg/kg or above, partial response occurred in 25% of patients, stable disease in 27%, and progressive disease in 31%, while 13% were not evaluable. Similar patterns were seen across three tumor types.

Of 18 responders, 14 continued to be responders at the time of the presentation. The longest response lengths were 13.1 months, 10.7 months, and 9.4 months.

Dr. Wermke said that the responses were encouraging, particularly the duration of some responses.

“Having a small cell [lung cancer] patient responding to something for more than a year is extraordinary. It comes with side effects, which are usually seen during the first [doses]. After that, the drug is pretty well tolerable, and that is also something which distinguishes it from alternative second-line approaches,” he said.
 

Well tolerated, but take efficacy data with a grain of salt

The study was encouraging but should be treated with caution, according to Vamsidhar Velcheti, MD, who moderated the session where the research was presented.

“The toxicity profile is actually very promising and it’s still very early, but there’s certainly a lot of interest in DLL3-targeted [therapies]. We’ve seen some very exciting data with other assets in this category as well,” said Dr. Velcheti, director of thoracic oncology at NYU Langone Health, New York.

Phase 1 efficacy data can be tantalizing but often fails to hold up to further testing, according to Dr. Velcheti. “We’ve seen signals in phase 1 data before, and we’ve been burned. We saw really promising data with Rova-T, and the confirmatory trials were negative, – so we want to be cautiously optimistic,” said Dr. Velcheti.

He also pointed out that patient selection will be important for such studies, considering that SCLC patients often have a lot of comorbidities and the therapy’s potential for causing CRS.

Both Dr. Wermke and Dr. Velcheti have received funding from numerous pharmaceutical companies. Dr. Wermke has consulted with or advised with Amgen, Bayer, Boehringer Ingelheim, Bristol-Myers Squibb, ImCheck Therapeutics, Immatics, ISA Pharmaceuticals, Lilly, and Novartis.

CHICAGO – In a phase 1 small cell lung cancer (SCLC) trial, a bispecific antibody that targets T cells and the inhibitory notch ligand known as delta-like ligand 3 (DLL3) showed a good safety profile and encouraging signs of efficacy, including one response that lasted more than a year.

The antibody promotes the destruction of tumor cells by T cells by acting as a bridge between T cells and tumors.

SCLC has largely resisted efforts to identify unique surface markers. DLL3 is an exception: It is rarely expressed in normal cells, and it seems to be important to tumor biology, according to Martin Wermke, MD, who presented the study at the annual meeting of the American Society of Clinical Oncology.
 

A rare SCLC biomarker

“The problem, I think, is that small cell [lung cancer] with its high mutational burden is a bunch of many different subentities and you will probably not find a single driver mutation as you do in non–small cell lung cancer. So in that [way] it’s different in its biology,” said Dr. Wermke, professor of experimental tumor therapy at the National Center for Tumor Diseases in Dresden, Germany.

Nevertheless, DLL3 is a sensitive biomarker, with over 90% of SCLC tumors positive for the surface marker, according to Dr. Wermke. “It’s one of the first which proved to be a reliable [SCLC] biomarker for therapeutic approaches,” said Dr. Wermke.

This isn’t the first clinical experience with DLL3. An anti-DLL3 antibody was used as part of an antibody-drug conjugate called Rova-T, which failed a phase 3 trial in SCLC in 2021 and was subsequently canceled by AbbVie, but Dr. Wermke believes that the issue was with the drug and linker (a chemical tag that links the cytotoxic drug to the antibody, which is designed to release the drug in an appropriate environment such as the interior of a tumor cell after an antibody-drug conjugate has been internalized by the tumor cell), not DLL3. DLL3 is also being investigated as a component of chimeric antigen receptor T-cell therapy, though no clinical results have been reported, Dr. Wermke said.
 

Study methods and results

The study included 107 patients. The median age was 60.0 years, and 57% were male. To be included, patients had to have advanced SCLC, large cell neuroendocrine carcinoma, or extrapulmonary neuroendocrine carcinoma, as well as test positive for DLL3 expression.

The drug was well tolerated: 86% of patients experienced at least one treatment-related adverse event: 59% with a grade 1-2 TRAE and 27% with a grade 3-5 TRAE. Cytokine release syndrome (CRS) occurred in 59% of patients, but just 2% were grade 3-5. TRAEs led to discontinuation in 4% of patients. Physicians were able to manage CRS with supportive care, steroids, and anti–interleukin-6 receptor antibodies.

The treatment showed signs of efficacy, with partial responses occurring in 18% of patients, stable disease in 23%, progressive disease in 45%, while 13% were not evaluable.

At doses of 90 mg/kg or above, partial response occurred in 25% of patients, stable disease in 27%, and progressive disease in 31%, while 13% were not evaluable. Similar patterns were seen across three tumor types.

Of 18 responders, 14 continued to be responders at the time of the presentation. The longest response lengths were 13.1 months, 10.7 months, and 9.4 months.

Dr. Wermke said that the responses were encouraging, particularly the duration of some responses.

“Having a small cell [lung cancer] patient responding to something for more than a year is extraordinary. It comes with side effects, which are usually seen during the first [doses]. After that, the drug is pretty well tolerable, and that is also something which distinguishes it from alternative second-line approaches,” he said.
 

Well tolerated, but take efficacy data with a grain of salt

The study was encouraging but should be treated with caution, according to Vamsidhar Velcheti, MD, who moderated the session where the research was presented.

“The toxicity profile is actually very promising and it’s still very early, but there’s certainly a lot of interest in DLL3-targeted [therapies]. We’ve seen some very exciting data with other assets in this category as well,” said Dr. Velcheti, director of thoracic oncology at NYU Langone Health, New York.

Phase 1 efficacy data can be tantalizing but often fails to hold up to further testing, according to Dr. Velcheti. “We’ve seen signals in phase 1 data before, and we’ve been burned. We saw really promising data with Rova-T, and the confirmatory trials were negative, – so we want to be cautiously optimistic,” said Dr. Velcheti.

He also pointed out that patient selection will be important for such studies, considering that SCLC patients often have a lot of comorbidities and the therapy’s potential for causing CRS.

Both Dr. Wermke and Dr. Velcheti have received funding from numerous pharmaceutical companies. Dr. Wermke has consulted with or advised with Amgen, Bayer, Boehringer Ingelheim, Bristol-Myers Squibb, ImCheck Therapeutics, Immatics, ISA Pharmaceuticals, Lilly, and Novartis.

CHICAGO – In a phase 1 small cell lung cancer (SCLC) trial, a bispecific antibody that targets T cells and the inhibitory notch ligand known as delta-like ligand 3 (DLL3) showed a good safety profile and encouraging signs of efficacy, including one response that lasted more than a year.

The antibody promotes the destruction of tumor cells by T cells by acting as a bridge between T cells and tumors.

SCLC has largely resisted efforts to identify unique surface markers. DLL3 is an exception: It is rarely expressed in normal cells, and it seems to be important to tumor biology, according to Martin Wermke, MD, who presented the study at the annual meeting of the American Society of Clinical Oncology.
 

A rare SCLC biomarker

“The problem, I think, is that small cell [lung cancer] with its high mutational burden is a bunch of many different subentities and you will probably not find a single driver mutation as you do in non–small cell lung cancer. So in that [way] it’s different in its biology,” said Dr. Wermke, professor of experimental tumor therapy at the National Center for Tumor Diseases in Dresden, Germany.

Nevertheless, DLL3 is a sensitive biomarker, with over 90% of SCLC tumors positive for the surface marker, according to Dr. Wermke. “It’s one of the first which proved to be a reliable [SCLC] biomarker for therapeutic approaches,” said Dr. Wermke.

This isn’t the first clinical experience with DLL3. An anti-DLL3 antibody was used as part of an antibody-drug conjugate called Rova-T, which failed a phase 3 trial in SCLC in 2021 and was subsequently canceled by AbbVie, but Dr. Wermke believes that the issue was with the drug and linker (a chemical tag that links the cytotoxic drug to the antibody, which is designed to release the drug in an appropriate environment such as the interior of a tumor cell after an antibody-drug conjugate has been internalized by the tumor cell), not DLL3. DLL3 is also being investigated as a component of chimeric antigen receptor T-cell therapy, though no clinical results have been reported, Dr. Wermke said.
 

Study methods and results

The study included 107 patients. The median age was 60.0 years, and 57% were male. To be included, patients had to have advanced SCLC, large cell neuroendocrine carcinoma, or extrapulmonary neuroendocrine carcinoma, as well as test positive for DLL3 expression.

The drug was well tolerated: 86% of patients experienced at least one treatment-related adverse event: 59% with a grade 1-2 TRAE and 27% with a grade 3-5 TRAE. Cytokine release syndrome (CRS) occurred in 59% of patients, but just 2% were grade 3-5. TRAEs led to discontinuation in 4% of patients. Physicians were able to manage CRS with supportive care, steroids, and anti–interleukin-6 receptor antibodies.

The treatment showed signs of efficacy, with partial responses occurring in 18% of patients, stable disease in 23%, progressive disease in 45%, while 13% were not evaluable.

At doses of 90 mg/kg or above, partial response occurred in 25% of patients, stable disease in 27%, and progressive disease in 31%, while 13% were not evaluable. Similar patterns were seen across three tumor types.

Of 18 responders, 14 continued to be responders at the time of the presentation. The longest response lengths were 13.1 months, 10.7 months, and 9.4 months.

Dr. Wermke said that the responses were encouraging, particularly the duration of some responses.

“Having a small cell [lung cancer] patient responding to something for more than a year is extraordinary. It comes with side effects, which are usually seen during the first [doses]. After that, the drug is pretty well tolerable, and that is also something which distinguishes it from alternative second-line approaches,” he said.
 

Well tolerated, but take efficacy data with a grain of salt

The study was encouraging but should be treated with caution, according to Vamsidhar Velcheti, MD, who moderated the session where the research was presented.

“The toxicity profile is actually very promising and it’s still very early, but there’s certainly a lot of interest in DLL3-targeted [therapies]. We’ve seen some very exciting data with other assets in this category as well,” said Dr. Velcheti, director of thoracic oncology at NYU Langone Health, New York.

Phase 1 efficacy data can be tantalizing but often fails to hold up to further testing, according to Dr. Velcheti. “We’ve seen signals in phase 1 data before, and we’ve been burned. We saw really promising data with Rova-T, and the confirmatory trials were negative, – so we want to be cautiously optimistic,” said Dr. Velcheti.

He also pointed out that patient selection will be important for such studies, considering that SCLC patients often have a lot of comorbidities and the therapy’s potential for causing CRS.

Both Dr. Wermke and Dr. Velcheti have received funding from numerous pharmaceutical companies. Dr. Wermke has consulted with or advised with Amgen, Bayer, Boehringer Ingelheim, Bristol-Myers Squibb, ImCheck Therapeutics, Immatics, ISA Pharmaceuticals, Lilly, and Novartis.

CHICAGO – When it comes to preventing pelvic recurrence in low-risk cervical cancer, simple hysterectomy is not inferior to radical hysterectomy, according to results from a phase 3, randomized, controlled trial.

“Following adequate and rigorous preoperative assessment, and that’s key – very careful [patient selection] – simple hysterectomies can now be considered the new standard of care for patients with low-risk early-stage cervical cancer,” said Marie Plante, MD, during a presentation of the study at the annual meeting of the American Society of Clinical Oncology. A simple hysterectomy removes the uterus and cervix, while a radical hysterectomy also removes the parametrium and upper vagina.

Cervical cancer incidence has gone down over the past 2 decades as a result of improved screening, and patients tend to be lower in age and are more likely to have low-risk, early-stage disease, according to Dr. Plante. “Although radical surgery is highly effective for the treatment of low-risk disease, women are at risk of suffering survivorship issues related to long-term surgical side effects including compromised bladder, bowel, and sexual function,” said Dr. Plante, who is a professor of obstetrics and gynecology at Laval University and head of clinical research at l’Hôtel-Dieu de Québec, both in Quebec City.

Retrospective studies found that infiltration of the parametrium is quite rare in low-risk cases, “suggesting that less radical surgery may be a safe option associated with decreased morbidity – what we call surgical de-escalation,” said Dr. Plante.

To test that idea more rigorously, the researchers designed the SHAPE trial, which randomized 700 women to a simple hysterectomy or radical hysterectomy. Patients were carefully selected to be low risk, having squamous cell, adenocarcinoma, or adenosquamous carcinoma, stage IA2 or IB2 tumors, fewer than 10 mm of stromal invasion on loop electrosurgical excision procedure or cone biopsy, less than 50% stromal invasion seen in MRI, and a maximum tumor dimension of 20 mm or less. Tumors were grade I-III or not assessable.

Over a median follow-up of 4.5 years, pelvic recurrence was 2.52% in the simple hysterectomy group and 2.17% in the radical hysterectomy group. The difference between the recurrence rate between the two groups was 0.35%, with an upper 95% confidence limit of 2.32%, below the threshold of 4% which had been predetermined as a benchmark for similar outcomes between the two groups. “Therefore, noninferiority of simple hysterectomy to radical hysterectomy could be concluded,” said Dr. Plante.

There were no statistically significant differences in intraoperative complications or mortality between the groups.
 

Surgery-related adverse events greater in radical hysterectomy group

There were some differences between the groups with respect to surgery-related adverse events. Within 4 weeks of surgery, there was a greater incidence of any adverse event in the radical hysterectomy group (50.6% vs. 42.6%; P = .04), as well as greater incidences of urinary incontinence (5.5% vs. 2.4%; P = .048) and urinary retention (11.0% vs. 0.6%; P < .0001). In the 4 weeks following surgery, there was a trend toward more surgery-related adverse events in the radical hysterectomy group (60.5% vs. 53.6%; P = .08) and higher incidences of urinary incontinence (11.0% vs. 4.7%; P = .003) and urinary retention (9.9% vs. 0.6%; P < .0001).

“Urinary incontinence and urinary retention are statistically worse in the radical hysterectomy group – both acutely, as well as [during] the following four weeks after surgery, suggesting that the problem persisted over time,” said Dr. Plante.

Dr. Plante also presented the study at a premeeting virtual press conference, during which Kathleen Moore, MD, provided comments on the study. She expressed enthusiasm about the results.

“Amongst those carefully selected tumors, radical hysterectomy can be converted to a simple hysterectomy, including minimally invasive. You still have to do nodes – that’s an important thing to remember – but you can do this without loss of oncologic control. And importantly, with reduction in surgical complications, postop morbidity, specifically neurologic morbidity. The moment this is presented [at the ASCO conference] this will be the new standard of care, and it represents a huge step forward in the care of women with early-stage cervical cancer,” said Dr. Moore, who is a professor of gynecologic oncology at the University of Oklahoma Health Sciences Center, Oklahoma City.

Also in the press conference, Dr. Plante emphasized the importance of a thorough understanding of the tumor, including size, imaging, and pathology. “The more conservative one wants to be, the more meticulous, the more careful one has to be to make sure that we’re truly dealing with low-risk patients.”

During the question-and-answer session following her presentation at the ASCO session, a moderator asked Dr. Plante if the presence of lymph vascular space invasion (LVSI) should prompt a radical hysterectomy.

Dr. Plante noted that about 13% of both radical and simple hysterectomy groups had LVSI present. “I think the key thing is careful selection, but I’m not sure that we should exclude LVSI [from consideration for simple hysterectomy] de facto,” she said.

Dr. Plante has consulted or advised Merck Serono and has received travel, accommodations, or other expenses from AstraZeneca. Dr. Moore has consulted, advised, and received research funding and travel expenses from numerous pharmaceutical companies.

CHICAGO – When it comes to preventing pelvic recurrence in low-risk cervical cancer, simple hysterectomy is not inferior to radical hysterectomy, according to results from a phase 3, randomized, controlled trial.

“Following adequate and rigorous preoperative assessment, and that’s key – very careful [patient selection] – simple hysterectomies can now be considered the new standard of care for patients with low-risk early-stage cervical cancer,” said Marie Plante, MD, during a presentation of the study at the annual meeting of the American Society of Clinical Oncology. A simple hysterectomy removes the uterus and cervix, while a radical hysterectomy also removes the parametrium and upper vagina.

Cervical cancer incidence has gone down over the past 2 decades as a result of improved screening, and patients tend to be lower in age and are more likely to have low-risk, early-stage disease, according to Dr. Plante. “Although radical surgery is highly effective for the treatment of low-risk disease, women are at risk of suffering survivorship issues related to long-term surgical side effects including compromised bladder, bowel, and sexual function,” said Dr. Plante, who is a professor of obstetrics and gynecology at Laval University and head of clinical research at l’Hôtel-Dieu de Québec, both in Quebec City.

Retrospective studies found that infiltration of the parametrium is quite rare in low-risk cases, “suggesting that less radical surgery may be a safe option associated with decreased morbidity – what we call surgical de-escalation,” said Dr. Plante.

To test that idea more rigorously, the researchers designed the SHAPE trial, which randomized 700 women to a simple hysterectomy or radical hysterectomy. Patients were carefully selected to be low risk, having squamous cell, adenocarcinoma, or adenosquamous carcinoma, stage IA2 or IB2 tumors, fewer than 10 mm of stromal invasion on loop electrosurgical excision procedure or cone biopsy, less than 50% stromal invasion seen in MRI, and a maximum tumor dimension of 20 mm or less. Tumors were grade I-III or not assessable.

Over a median follow-up of 4.5 years, pelvic recurrence was 2.52% in the simple hysterectomy group and 2.17% in the radical hysterectomy group. The difference between the recurrence rate between the two groups was 0.35%, with an upper 95% confidence limit of 2.32%, below the threshold of 4% which had been predetermined as a benchmark for similar outcomes between the two groups. “Therefore, noninferiority of simple hysterectomy to radical hysterectomy could be concluded,” said Dr. Plante.

There were no statistically significant differences in intraoperative complications or mortality between the groups.
 

Surgery-related adverse events greater in radical hysterectomy group

There were some differences between the groups with respect to surgery-related adverse events. Within 4 weeks of surgery, there was a greater incidence of any adverse event in the radical hysterectomy group (50.6% vs. 42.6%; P = .04), as well as greater incidences of urinary incontinence (5.5% vs. 2.4%; P = .048) and urinary retention (11.0% vs. 0.6%; P < .0001). In the 4 weeks following surgery, there was a trend toward more surgery-related adverse events in the radical hysterectomy group (60.5% vs. 53.6%; P = .08) and higher incidences of urinary incontinence (11.0% vs. 4.7%; P = .003) and urinary retention (9.9% vs. 0.6%; P < .0001).

“Urinary incontinence and urinary retention are statistically worse in the radical hysterectomy group – both acutely, as well as [during] the following four weeks after surgery, suggesting that the problem persisted over time,” said Dr. Plante.

Dr. Plante also presented the study at a premeeting virtual press conference, during which Kathleen Moore, MD, provided comments on the study. She expressed enthusiasm about the results.

“Amongst those carefully selected tumors, radical hysterectomy can be converted to a simple hysterectomy, including minimally invasive. You still have to do nodes – that’s an important thing to remember – but you can do this without loss of oncologic control. And importantly, with reduction in surgical complications, postop morbidity, specifically neurologic morbidity. The moment this is presented [at the ASCO conference] this will be the new standard of care, and it represents a huge step forward in the care of women with early-stage cervical cancer,” said Dr. Moore, who is a professor of gynecologic oncology at the University of Oklahoma Health Sciences Center, Oklahoma City.

Also in the press conference, Dr. Plante emphasized the importance of a thorough understanding of the tumor, including size, imaging, and pathology. “The more conservative one wants to be, the more meticulous, the more careful one has to be to make sure that we’re truly dealing with low-risk patients.”

During the question-and-answer session following her presentation at the ASCO session, a moderator asked Dr. Plante if the presence of lymph vascular space invasion (LVSI) should prompt a radical hysterectomy.

Dr. Plante noted that about 13% of both radical and simple hysterectomy groups had LVSI present. “I think the key thing is careful selection, but I’m not sure that we should exclude LVSI [from consideration for simple hysterectomy] de facto,” she said.

Dr. Plante has consulted or advised Merck Serono and has received travel, accommodations, or other expenses from AstraZeneca. Dr. Moore has consulted, advised, and received research funding and travel expenses from numerous pharmaceutical companies.

CHICAGO – When it comes to preventing pelvic recurrence in low-risk cervical cancer, simple hysterectomy is not inferior to radical hysterectomy, according to results from a phase 3, randomized, controlled trial.

“Following adequate and rigorous preoperative assessment, and that’s key – very careful [patient selection] – simple hysterectomies can now be considered the new standard of care for patients with low-risk early-stage cervical cancer,” said Marie Plante, MD, during a presentation of the study at the annual meeting of the American Society of Clinical Oncology. A simple hysterectomy removes the uterus and cervix, while a radical hysterectomy also removes the parametrium and upper vagina.

Cervical cancer incidence has gone down over the past 2 decades as a result of improved screening, and patients tend to be lower in age and are more likely to have low-risk, early-stage disease, according to Dr. Plante. “Although radical surgery is highly effective for the treatment of low-risk disease, women are at risk of suffering survivorship issues related to long-term surgical side effects including compromised bladder, bowel, and sexual function,” said Dr. Plante, who is a professor of obstetrics and gynecology at Laval University and head of clinical research at l’Hôtel-Dieu de Québec, both in Quebec City.

Retrospective studies found that infiltration of the parametrium is quite rare in low-risk cases, “suggesting that less radical surgery may be a safe option associated with decreased morbidity – what we call surgical de-escalation,” said Dr. Plante.

To test that idea more rigorously, the researchers designed the SHAPE trial, which randomized 700 women to a simple hysterectomy or radical hysterectomy. Patients were carefully selected to be low risk, having squamous cell, adenocarcinoma, or adenosquamous carcinoma, stage IA2 or IB2 tumors, fewer than 10 mm of stromal invasion on loop electrosurgical excision procedure or cone biopsy, less than 50% stromal invasion seen in MRI, and a maximum tumor dimension of 20 mm or less. Tumors were grade I-III or not assessable.

Over a median follow-up of 4.5 years, pelvic recurrence was 2.52% in the simple hysterectomy group and 2.17% in the radical hysterectomy group. The difference between the recurrence rate between the two groups was 0.35%, with an upper 95% confidence limit of 2.32%, below the threshold of 4% which had been predetermined as a benchmark for similar outcomes between the two groups. “Therefore, noninferiority of simple hysterectomy to radical hysterectomy could be concluded,” said Dr. Plante.

There were no statistically significant differences in intraoperative complications or mortality between the groups.
 

Surgery-related adverse events greater in radical hysterectomy group

There were some differences between the groups with respect to surgery-related adverse events. Within 4 weeks of surgery, there was a greater incidence of any adverse event in the radical hysterectomy group (50.6% vs. 42.6%; P = .04), as well as greater incidences of urinary incontinence (5.5% vs. 2.4%; P = .048) and urinary retention (11.0% vs. 0.6%; P < .0001). In the 4 weeks following surgery, there was a trend toward more surgery-related adverse events in the radical hysterectomy group (60.5% vs. 53.6%; P = .08) and higher incidences of urinary incontinence (11.0% vs. 4.7%; P = .003) and urinary retention (9.9% vs. 0.6%; P < .0001).

“Urinary incontinence and urinary retention are statistically worse in the radical hysterectomy group – both acutely, as well as [during] the following four weeks after surgery, suggesting that the problem persisted over time,” said Dr. Plante.

Dr. Plante also presented the study at a premeeting virtual press conference, during which Kathleen Moore, MD, provided comments on the study. She expressed enthusiasm about the results.

“Amongst those carefully selected tumors, radical hysterectomy can be converted to a simple hysterectomy, including minimally invasive. You still have to do nodes – that’s an important thing to remember – but you can do this without loss of oncologic control. And importantly, with reduction in surgical complications, postop morbidity, specifically neurologic morbidity. The moment this is presented [at the ASCO conference] this will be the new standard of care, and it represents a huge step forward in the care of women with early-stage cervical cancer,” said Dr. Moore, who is a professor of gynecologic oncology at the University of Oklahoma Health Sciences Center, Oklahoma City.

Also in the press conference, Dr. Plante emphasized the importance of a thorough understanding of the tumor, including size, imaging, and pathology. “The more conservative one wants to be, the more meticulous, the more careful one has to be to make sure that we’re truly dealing with low-risk patients.”

During the question-and-answer session following her presentation at the ASCO session, a moderator asked Dr. Plante if the presence of lymph vascular space invasion (LVSI) should prompt a radical hysterectomy.

Dr. Plante noted that about 13% of both radical and simple hysterectomy groups had LVSI present. “I think the key thing is careful selection, but I’m not sure that we should exclude LVSI [from consideration for simple hysterectomy] de facto,” she said.

Dr. Plante has consulted or advised Merck Serono and has received travel, accommodations, or other expenses from AstraZeneca. Dr. Moore has consulted, advised, and received research funding and travel expenses from numerous pharmaceutical companies.