Sharon Worcester, MA

The Food and Drug Administration has acknowledged reports of squamous cell carcinoma (SCC) of the breast as well as lymphomas associated with postmastectomy breast implants.

Findings from a large cohort study suggest the incidence of SCC is negligible. The analysis found one case of SCC among nearly 57,000 women who had undergone breast implant reconstruction over 421,227 person-years of follow-up.

The authors also confirmed the known risk of breast implant–associated anaplastic large-cell lymphoma (ALCL), identifying five cases in the population, which was considered a “significantly elevated” risk.

Although patients with breast cancer who are eligible for mastectomy should be counseled on the risks for cancer after implant reconstruction, patients “should not be dissuaded from pursuing implant-based reconstruction because of the risk of SCC,” lead author Connor J. Kinslow, MD, of Columbia University, New York, and colleagues concluded.

SCC cases associated with breast implants are distinct from breast implant–associated ALCL, the authors noted, explaining that this lymphoma “is the subject of a boxed warning on all saline- and silicone gel–filled breast implants since 2020.” 

The results were published in a research letter in JAMA Surgery.

Last September, a safety communication from the FDA highlighted reports of SCC and other lymphomas associated with breast implants. The FDA said it was aware of fewer than 20 cases of SCC.

Following the safety communication, Dr. Kinslow and colleagues assessed SCC risk among 56,785 women who underwent cancer-directed mastectomy with implant reconstruction for breast tumors.

Women in the cohort were diagnosed between 2000 and 2018 and included in the Surveillance, Epidemiology, and End Results (SEER) 17 database. Patients had a median age of 51 years; most (84%) where White, 8.1% were Black, 7.4% were Asian or Pacific Islander, 0.4% were American Indian/Alaska Native, and race was unknown in 0.4%.

Across 421,227 person-years of follow-up, the team identified one case of SCC, corresponding to an incidence rate of 2.37 per million person-years vs. an expected incidence of 1.02 per million person-years in the general population. Although the 2.33 standardized incidence ratio (SIR) “appeared elevated vs. the general population,” it was “not significant given the low incidence” (95% confidence interval, 0.06-13.0).

The team also identified five cases of breast implant–associated ALCL. That corresponded to an incidence rate of 11.9 per million person-years compared with an expected incidence of 0.29 per million person-years – for a significantly elevated SIR of 40.9. The authors also noted more than 1,000 reported cases of breast implant–associated ALCL previous as well as a robust association with implants.

Regarding SCC, “whether the observed elevated risk is associated with the implants is difficult to interpret because it is based on only one case and wide [confidence intervals],” the authors said. But, overall, “we found that the incidence rate of SCC was extraordinarily low and of minimal public health concern.”
 

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

The Food and Drug Administration has acknowledged reports of squamous cell carcinoma (SCC) of the breast as well as lymphomas associated with postmastectomy breast implants.

Findings from a large cohort study suggest the incidence of SCC is negligible. The analysis found one case of SCC among nearly 57,000 women who had undergone breast implant reconstruction over 421,227 person-years of follow-up.

The authors also confirmed the known risk of breast implant–associated anaplastic large-cell lymphoma (ALCL), identifying five cases in the population, which was considered a “significantly elevated” risk.

Although patients with breast cancer who are eligible for mastectomy should be counseled on the risks for cancer after implant reconstruction, patients “should not be dissuaded from pursuing implant-based reconstruction because of the risk of SCC,” lead author Connor J. Kinslow, MD, of Columbia University, New York, and colleagues concluded.

SCC cases associated with breast implants are distinct from breast implant–associated ALCL, the authors noted, explaining that this lymphoma “is the subject of a boxed warning on all saline- and silicone gel–filled breast implants since 2020.” 

The results were published in a research letter in JAMA Surgery.

Last September, a safety communication from the FDA highlighted reports of SCC and other lymphomas associated with breast implants. The FDA said it was aware of fewer than 20 cases of SCC.

Following the safety communication, Dr. Kinslow and colleagues assessed SCC risk among 56,785 women who underwent cancer-directed mastectomy with implant reconstruction for breast tumors.

Women in the cohort were diagnosed between 2000 and 2018 and included in the Surveillance, Epidemiology, and End Results (SEER) 17 database. Patients had a median age of 51 years; most (84%) where White, 8.1% were Black, 7.4% were Asian or Pacific Islander, 0.4% were American Indian/Alaska Native, and race was unknown in 0.4%.

Across 421,227 person-years of follow-up, the team identified one case of SCC, corresponding to an incidence rate of 2.37 per million person-years vs. an expected incidence of 1.02 per million person-years in the general population. Although the 2.33 standardized incidence ratio (SIR) “appeared elevated vs. the general population,” it was “not significant given the low incidence” (95% confidence interval, 0.06-13.0).

The team also identified five cases of breast implant–associated ALCL. That corresponded to an incidence rate of 11.9 per million person-years compared with an expected incidence of 0.29 per million person-years – for a significantly elevated SIR of 40.9. The authors also noted more than 1,000 reported cases of breast implant–associated ALCL previous as well as a robust association with implants.

Regarding SCC, “whether the observed elevated risk is associated with the implants is difficult to interpret because it is based on only one case and wide [confidence intervals],” the authors said. But, overall, “we found that the incidence rate of SCC was extraordinarily low and of minimal public health concern.”
 

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

The Food and Drug Administration has acknowledged reports of squamous cell carcinoma (SCC) of the breast as well as lymphomas associated with postmastectomy breast implants.

Findings from a large cohort study suggest the incidence of SCC is negligible. The analysis found one case of SCC among nearly 57,000 women who had undergone breast implant reconstruction over 421,227 person-years of follow-up.

The authors also confirmed the known risk of breast implant–associated anaplastic large-cell lymphoma (ALCL), identifying five cases in the population, which was considered a “significantly elevated” risk.

Although patients with breast cancer who are eligible for mastectomy should be counseled on the risks for cancer after implant reconstruction, patients “should not be dissuaded from pursuing implant-based reconstruction because of the risk of SCC,” lead author Connor J. Kinslow, MD, of Columbia University, New York, and colleagues concluded.

SCC cases associated with breast implants are distinct from breast implant–associated ALCL, the authors noted, explaining that this lymphoma “is the subject of a boxed warning on all saline- and silicone gel–filled breast implants since 2020.” 

The results were published in a research letter in JAMA Surgery.

Last September, a safety communication from the FDA highlighted reports of SCC and other lymphomas associated with breast implants. The FDA said it was aware of fewer than 20 cases of SCC.

Following the safety communication, Dr. Kinslow and colleagues assessed SCC risk among 56,785 women who underwent cancer-directed mastectomy with implant reconstruction for breast tumors.

Women in the cohort were diagnosed between 2000 and 2018 and included in the Surveillance, Epidemiology, and End Results (SEER) 17 database. Patients had a median age of 51 years; most (84%) where White, 8.1% were Black, 7.4% were Asian or Pacific Islander, 0.4% were American Indian/Alaska Native, and race was unknown in 0.4%.

Across 421,227 person-years of follow-up, the team identified one case of SCC, corresponding to an incidence rate of 2.37 per million person-years vs. an expected incidence of 1.02 per million person-years in the general population. Although the 2.33 standardized incidence ratio (SIR) “appeared elevated vs. the general population,” it was “not significant given the low incidence” (95% confidence interval, 0.06-13.0).

The team also identified five cases of breast implant–associated ALCL. That corresponded to an incidence rate of 11.9 per million person-years compared with an expected incidence of 0.29 per million person-years – for a significantly elevated SIR of 40.9. The authors also noted more than 1,000 reported cases of breast implant–associated ALCL previous as well as a robust association with implants.

Regarding SCC, “whether the observed elevated risk is associated with the implants is difficult to interpret because it is based on only one case and wide [confidence intervals],” the authors said. But, overall, “we found that the incidence rate of SCC was extraordinarily low and of minimal public health concern.”
 

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

The effects of maribavir (Levtencity) for the treatment of resistant or refractory post-transplant cytomegalovirus (CMV) infection persisted at 52-week follow-up in hematopoietic stem cell and solid organ transplant patients from the pivotal phase 3 SOLSTICE trial.

Overall mortality in the 109 patients from these subcohorts from SOLSTICE was lower, compared with mortality reported for similar populations treated with conventional therapies used to treat relapsed or refractory (R/R) CMV, according to findings presented in April at the annual meeting of the European Society for Bone and Marrow Transplantation.

“These results, in addition to the superior efficacy in CMV clearance observed for maribavir in SOLSTICE provide supportive evidence of the potential for the long-term benefit of maribavir treatment for post-transplant CMV infection,” Ishan Hirji, of Takeda Development Center Americas, and colleagues reported during a poster session at the meeting.

A retrospective chart review of the 41 hematopoietic stem cell transplant (HSCT) patients and 68 solid organ transplant (SOT) patients randomized to receive maribavir showed an overall mortality rate of 15.6% at 52 weeks after initiation of treatment with the antiviral agent. Among the HSCT patients, 14 deaths occurred (34.1%), with 8 occurring during the study periods and 6 occurring during follow-up. Among the SOT patients, three deaths occurred (4.4%), all during follow-up chart review.

Causes of death included underlying disease relapse in four patients, infection other than CMV in six patients, and one case each of CMV-related factors, transplant-related factors, acute lymphoblastic leukemia, and septic shock. Causes of death in the SOT patients included one case each of CMV-related factors, anemia, and renal failure.

“No patients had new graft loss or retransplantation during the chart review period,” the investigators noted.

The findings are notable as CMV infection occurs in 30%-70% of HSCT recipients and 16%-56% of SOT recipients and can lead to complications, including transplant failure and death. Reported 1-year mortality rates following standard therapies for CMV range from 31% to 50%, they explained.

Patients in the SOLSTICE trial received 8 weeks of treatment and were followed for 12 additional weeks. CMV clearance at the end of treatment was 55.7% in the maribavir treatment arm versus 23.9% in a control group of patients treated with investigator choice of therapy. As reported by this news organization, the findings formed the basis for U.S. Food and Drug Administration approval of maribavir in November 2021.

The current analysis included a chart review period that started 1 day after the SOLSTICE trial period and continued for 32 additional weeks.

These long-term follow-up data confirm the benefits of maribavir for the treatment of post-transplant CMV, according to the investigators, and findings from a separate study reported at the ESBMT meeting underscore the importance of the durable benefits observed with maribavir treatment.

For that retrospective study, Maria Laura Fox, of Vall d’Hebron Institute of Oncology, Barcelona, and colleagues pooled de-identified data from 250 adult HSCT recipients with R/R CMV who were treated with agents other than maribavir at transplant centers in the United States or Europe. They aimed to “generate real-world evidence on the burden of CMV infection/disease in HSCT recipients who had refractory/resistant CMV or were intolerant to current treatments.”

Nearly 92% of patients received two or more therapies to treat CMV, and 92.2% discontinued treatment or had one or more therapy dose changes or discontinuation, and 42 patients failed to achieve clearance of the CMV index episode.

CMV recurred in 35.2% of patients, and graft failure occurred in 4% of patients, the investigators reported.

All-cause mortality was 56.0%, and mortality at 1 year after identification of R/R disease or treatment intolerance was 45.2%, they noted, adding that the study results “highlight the real-world complexities and high burden of CMV infection for HSCT recipients.”

“With available anti-CMV agents [excluding maribavir], a notable proportion of patients failed to achieve viremia clearance once developing RRI [resistant, refractory, or intolerant] CMV and/or experienced recurrence, and were at risk of adverse outcomes, including myelosuppression and mortality. There is a need for therapies that achieve and maintain CMV clearance with improved safety profiles,” they concluded.

Both studies were funded by Takeda Development Center Americas, the maker of Levtencity. Ms. Hirji is an employee of Takeda and reported stock ownership. Ms. Fox reported relationships with Sierra Oncology, GlaxoSmithKline, Bristol Myers Squibb, Novartis, and AbbVie.

The effects of maribavir (Levtencity) for the treatment of resistant or refractory post-transplant cytomegalovirus (CMV) infection persisted at 52-week follow-up in hematopoietic stem cell and solid organ transplant patients from the pivotal phase 3 SOLSTICE trial.

Overall mortality in the 109 patients from these subcohorts from SOLSTICE was lower, compared with mortality reported for similar populations treated with conventional therapies used to treat relapsed or refractory (R/R) CMV, according to findings presented in April at the annual meeting of the European Society for Bone and Marrow Transplantation.

“These results, in addition to the superior efficacy in CMV clearance observed for maribavir in SOLSTICE provide supportive evidence of the potential for the long-term benefit of maribavir treatment for post-transplant CMV infection,” Ishan Hirji, of Takeda Development Center Americas, and colleagues reported during a poster session at the meeting.

A retrospective chart review of the 41 hematopoietic stem cell transplant (HSCT) patients and 68 solid organ transplant (SOT) patients randomized to receive maribavir showed an overall mortality rate of 15.6% at 52 weeks after initiation of treatment with the antiviral agent. Among the HSCT patients, 14 deaths occurred (34.1%), with 8 occurring during the study periods and 6 occurring during follow-up. Among the SOT patients, three deaths occurred (4.4%), all during follow-up chart review.

Causes of death included underlying disease relapse in four patients, infection other than CMV in six patients, and one case each of CMV-related factors, transplant-related factors, acute lymphoblastic leukemia, and septic shock. Causes of death in the SOT patients included one case each of CMV-related factors, anemia, and renal failure.

“No patients had new graft loss or retransplantation during the chart review period,” the investigators noted.

The findings are notable as CMV infection occurs in 30%-70% of HSCT recipients and 16%-56% of SOT recipients and can lead to complications, including transplant failure and death. Reported 1-year mortality rates following standard therapies for CMV range from 31% to 50%, they explained.

Patients in the SOLSTICE trial received 8 weeks of treatment and were followed for 12 additional weeks. CMV clearance at the end of treatment was 55.7% in the maribavir treatment arm versus 23.9% in a control group of patients treated with investigator choice of therapy. As reported by this news organization, the findings formed the basis for U.S. Food and Drug Administration approval of maribavir in November 2021.

The current analysis included a chart review period that started 1 day after the SOLSTICE trial period and continued for 32 additional weeks.

These long-term follow-up data confirm the benefits of maribavir for the treatment of post-transplant CMV, according to the investigators, and findings from a separate study reported at the ESBMT meeting underscore the importance of the durable benefits observed with maribavir treatment.

For that retrospective study, Maria Laura Fox, of Vall d’Hebron Institute of Oncology, Barcelona, and colleagues pooled de-identified data from 250 adult HSCT recipients with R/R CMV who were treated with agents other than maribavir at transplant centers in the United States or Europe. They aimed to “generate real-world evidence on the burden of CMV infection/disease in HSCT recipients who had refractory/resistant CMV or were intolerant to current treatments.”

Nearly 92% of patients received two or more therapies to treat CMV, and 92.2% discontinued treatment or had one or more therapy dose changes or discontinuation, and 42 patients failed to achieve clearance of the CMV index episode.

CMV recurred in 35.2% of patients, and graft failure occurred in 4% of patients, the investigators reported.

All-cause mortality was 56.0%, and mortality at 1 year after identification of R/R disease or treatment intolerance was 45.2%, they noted, adding that the study results “highlight the real-world complexities and high burden of CMV infection for HSCT recipients.”

“With available anti-CMV agents [excluding maribavir], a notable proportion of patients failed to achieve viremia clearance once developing RRI [resistant, refractory, or intolerant] CMV and/or experienced recurrence, and were at risk of adverse outcomes, including myelosuppression and mortality. There is a need for therapies that achieve and maintain CMV clearance with improved safety profiles,” they concluded.

Both studies were funded by Takeda Development Center Americas, the maker of Levtencity. Ms. Hirji is an employee of Takeda and reported stock ownership. Ms. Fox reported relationships with Sierra Oncology, GlaxoSmithKline, Bristol Myers Squibb, Novartis, and AbbVie.

The effects of maribavir (Levtencity) for the treatment of resistant or refractory post-transplant cytomegalovirus (CMV) infection persisted at 52-week follow-up in hematopoietic stem cell and solid organ transplant patients from the pivotal phase 3 SOLSTICE trial.

Overall mortality in the 109 patients from these subcohorts from SOLSTICE was lower, compared with mortality reported for similar populations treated with conventional therapies used to treat relapsed or refractory (R/R) CMV, according to findings presented in April at the annual meeting of the European Society for Bone and Marrow Transplantation.

“These results, in addition to the superior efficacy in CMV clearance observed for maribavir in SOLSTICE provide supportive evidence of the potential for the long-term benefit of maribavir treatment for post-transplant CMV infection,” Ishan Hirji, of Takeda Development Center Americas, and colleagues reported during a poster session at the meeting.

A retrospective chart review of the 41 hematopoietic stem cell transplant (HSCT) patients and 68 solid organ transplant (SOT) patients randomized to receive maribavir showed an overall mortality rate of 15.6% at 52 weeks after initiation of treatment with the antiviral agent. Among the HSCT patients, 14 deaths occurred (34.1%), with 8 occurring during the study periods and 6 occurring during follow-up. Among the SOT patients, three deaths occurred (4.4%), all during follow-up chart review.

Causes of death included underlying disease relapse in four patients, infection other than CMV in six patients, and one case each of CMV-related factors, transplant-related factors, acute lymphoblastic leukemia, and septic shock. Causes of death in the SOT patients included one case each of CMV-related factors, anemia, and renal failure.

“No patients had new graft loss or retransplantation during the chart review period,” the investigators noted.

The findings are notable as CMV infection occurs in 30%-70% of HSCT recipients and 16%-56% of SOT recipients and can lead to complications, including transplant failure and death. Reported 1-year mortality rates following standard therapies for CMV range from 31% to 50%, they explained.

Patients in the SOLSTICE trial received 8 weeks of treatment and were followed for 12 additional weeks. CMV clearance at the end of treatment was 55.7% in the maribavir treatment arm versus 23.9% in a control group of patients treated with investigator choice of therapy. As reported by this news organization, the findings formed the basis for U.S. Food and Drug Administration approval of maribavir in November 2021.

The current analysis included a chart review period that started 1 day after the SOLSTICE trial period and continued for 32 additional weeks.

These long-term follow-up data confirm the benefits of maribavir for the treatment of post-transplant CMV, according to the investigators, and findings from a separate study reported at the ESBMT meeting underscore the importance of the durable benefits observed with maribavir treatment.

For that retrospective study, Maria Laura Fox, of Vall d’Hebron Institute of Oncology, Barcelona, and colleagues pooled de-identified data from 250 adult HSCT recipients with R/R CMV who were treated with agents other than maribavir at transplant centers in the United States or Europe. They aimed to “generate real-world evidence on the burden of CMV infection/disease in HSCT recipients who had refractory/resistant CMV or were intolerant to current treatments.”

Nearly 92% of patients received two or more therapies to treat CMV, and 92.2% discontinued treatment or had one or more therapy dose changes or discontinuation, and 42 patients failed to achieve clearance of the CMV index episode.

CMV recurred in 35.2% of patients, and graft failure occurred in 4% of patients, the investigators reported.

All-cause mortality was 56.0%, and mortality at 1 year after identification of R/R disease or treatment intolerance was 45.2%, they noted, adding that the study results “highlight the real-world complexities and high burden of CMV infection for HSCT recipients.”

“With available anti-CMV agents [excluding maribavir], a notable proportion of patients failed to achieve viremia clearance once developing RRI [resistant, refractory, or intolerant] CMV and/or experienced recurrence, and were at risk of adverse outcomes, including myelosuppression and mortality. There is a need for therapies that achieve and maintain CMV clearance with improved safety profiles,” they concluded.

Both studies were funded by Takeda Development Center Americas, the maker of Levtencity. Ms. Hirji is an employee of Takeda and reported stock ownership. Ms. Fox reported relationships with Sierra Oncology, GlaxoSmithKline, Bristol Myers Squibb, Novartis, and AbbVie.

As many as 40% of lumpectomies leave positive margins that necessitate a second surgery, but a novel fluorescent imaging agent used along with a direct visualization system may improve complete resection rates, new phase 3 findings show.

Pegulicianine (Lumisight), an investigational and activatable fluorescent imaging agent used with a novel direct visualization system, helped identify residual tumor or circumvent second surgeries in about 10% of patients in the trial.

Use of the agent and direct visualization system – both from Lumicell and currently under review by the Food and Drug Administration – could provide more complete resection for patients with early breast cancer and avert the need for reexcisions, the investigators write.

The findings were published online in NEJM Evidence and were subsequently presented at the annual meeting of the American Society of Breast Surgeons.

Local recurrence following lumpectomy increases the risk of dying from breast cancer, and the risk of local recurrence is directly linked to inadequate tumor removal during lumpectomy. In about 20%-40% of lumpectomies, positive margins are identified after surgery.

To improve patient outcomes, investigators assessed whether a novel fluorescence-guided surgery system helped surgeons perform more complete resections during lumpectomy.

In the Novel Surgical Imaging for Tumor Excision (INSITE) trial, 392 patients were randomly assigned to undergo pegulicianine fluorescence-guided surgery (n = 357) or standard lumpectomy (n = 35).

To prevent surgeons from performing a smaller than standard lumpectomy in anticipation of using the pegulicianine fluorescence-guided system, patients were randomly assigned to the pegulicianine fluorescence-guided surgery group or the control group. The groups were revealed only after the surgeon completed the standard lumpectomy.

“Randomization was not designed to provide a control group for analysis of device performance,” The authors explain. “In this study design, each patient undergoing pegulicianine fluorescence-guided surgery served as her own control,” they write. The investigators compared final margin pathology after standard lumpectomy and after guided surgery. Those in the control group were included in the safety analysis.

Study participants were women aged 18 years or older who were undergoing lumpectomy for stage I–III breast cancer and/or ductal carcinoma in situ. All patients received pegulicianine 1.0 mg/kg via a 3-minute intravenous infusion 2-6 hours before surgery.

The agent produces a signal at sites of residual tumor, and a handheld probe illuminates the cavity during surgery. A tumor detection algorithm then analyzes and displays the images to the surgeon in real time – an overall process that adds about 7 minutes to the operative procedure, the authors say.

Investigators identified invasive cancers in 316 patients and in situ cancers in 76 patients. Among the 357 patients in the treatment group, 27 (7.6%) were found to have residual tumor after standard lumpectomy. For 22 patients, cavity orientations were deemed negative on standard margin evaluations, the authors report.

With use of pegulicianine fluorescence-guided surgery, positive margins were converted to negative margins for 9 of 62 patients (14.5%), potentially averting a second surgery in those patients.

Overall, the authors say that pegulicianine fluorescence-guided surgery removed residual tumor (27 of 357) or avoided second surgeries (9 of 357) in 10% of patients in the trial.

The current trial findings confirm results regarding the safety and efficacy of pegulicianine fluorescence-guided surgery and the direct visualization system that were reported in a prior multicenter feasibility study, the authors say.

Pegulicianine fluorescence-guided surgery met prespecified thresholds for removal of residual tumor and specificity, at 85.2%, but did not meet the prespecified threshold for sensitivity, which was only 49.3%.

The rate of serious adverse events with pegulicianine was 0.5% (two patients), similar to that of other contrast agents. Administration of the agent was stopped because of adverse events for six patients, the investigators write.

Serious adverse events included grade 3 hypersensitivity in one patient and an anaphylactic reaction in another. The other four adverse events included an allergic reaction, milder hypersensitivity, nausea, and pegulicianine extravasation. All adverse events resolved, and patients proceeded to standard lumpectomy.

Overall, the trial findings “suggest that a more complete breast cancer resection may be achieved” with pegulicianine fluorescence-guided surgery and the direct visualization system, lead investigator Barbara Smith, MD, PhD, director of the breast program at Massachusetts General Hospital and professor of surgery at Harvard Medical School, both in Boston, said in a press release. “Given the low complication rate, minimal added operative time and, most importantly, the discovery of additional cancer left behind after a lumpectomy, the Lumicell [system] has the potential to be a critical adjunct to enhance standard practice for breast cancer patients.”

The system also has the potential to reduce “the patient burden of additional surgery” and decrease “costs associated with a return to the operating room,” the authors conclude.

The INSITE trial was funded by Lumicell and the National Institutes of Health. Dr. Smith reported unpaid research collaboration with Lumicell.

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

As many as 40% of lumpectomies leave positive margins that necessitate a second surgery, but a novel fluorescent imaging agent used along with a direct visualization system may improve complete resection rates, new phase 3 findings show.

Pegulicianine (Lumisight), an investigational and activatable fluorescent imaging agent used with a novel direct visualization system, helped identify residual tumor or circumvent second surgeries in about 10% of patients in the trial.

Use of the agent and direct visualization system – both from Lumicell and currently under review by the Food and Drug Administration – could provide more complete resection for patients with early breast cancer and avert the need for reexcisions, the investigators write.

The findings were published online in NEJM Evidence and were subsequently presented at the annual meeting of the American Society of Breast Surgeons.

Local recurrence following lumpectomy increases the risk of dying from breast cancer, and the risk of local recurrence is directly linked to inadequate tumor removal during lumpectomy. In about 20%-40% of lumpectomies, positive margins are identified after surgery.

To improve patient outcomes, investigators assessed whether a novel fluorescence-guided surgery system helped surgeons perform more complete resections during lumpectomy.

In the Novel Surgical Imaging for Tumor Excision (INSITE) trial, 392 patients were randomly assigned to undergo pegulicianine fluorescence-guided surgery (n = 357) or standard lumpectomy (n = 35).

To prevent surgeons from performing a smaller than standard lumpectomy in anticipation of using the pegulicianine fluorescence-guided system, patients were randomly assigned to the pegulicianine fluorescence-guided surgery group or the control group. The groups were revealed only after the surgeon completed the standard lumpectomy.

“Randomization was not designed to provide a control group for analysis of device performance,” The authors explain. “In this study design, each patient undergoing pegulicianine fluorescence-guided surgery served as her own control,” they write. The investigators compared final margin pathology after standard lumpectomy and after guided surgery. Those in the control group were included in the safety analysis.

Study participants were women aged 18 years or older who were undergoing lumpectomy for stage I–III breast cancer and/or ductal carcinoma in situ. All patients received pegulicianine 1.0 mg/kg via a 3-minute intravenous infusion 2-6 hours before surgery.

The agent produces a signal at sites of residual tumor, and a handheld probe illuminates the cavity during surgery. A tumor detection algorithm then analyzes and displays the images to the surgeon in real time – an overall process that adds about 7 minutes to the operative procedure, the authors say.

Investigators identified invasive cancers in 316 patients and in situ cancers in 76 patients. Among the 357 patients in the treatment group, 27 (7.6%) were found to have residual tumor after standard lumpectomy. For 22 patients, cavity orientations were deemed negative on standard margin evaluations, the authors report.

With use of pegulicianine fluorescence-guided surgery, positive margins were converted to negative margins for 9 of 62 patients (14.5%), potentially averting a second surgery in those patients.

Overall, the authors say that pegulicianine fluorescence-guided surgery removed residual tumor (27 of 357) or avoided second surgeries (9 of 357) in 10% of patients in the trial.

The current trial findings confirm results regarding the safety and efficacy of pegulicianine fluorescence-guided surgery and the direct visualization system that were reported in a prior multicenter feasibility study, the authors say.

Pegulicianine fluorescence-guided surgery met prespecified thresholds for removal of residual tumor and specificity, at 85.2%, but did not meet the prespecified threshold for sensitivity, which was only 49.3%.

The rate of serious adverse events with pegulicianine was 0.5% (two patients), similar to that of other contrast agents. Administration of the agent was stopped because of adverse events for six patients, the investigators write.

Serious adverse events included grade 3 hypersensitivity in one patient and an anaphylactic reaction in another. The other four adverse events included an allergic reaction, milder hypersensitivity, nausea, and pegulicianine extravasation. All adverse events resolved, and patients proceeded to standard lumpectomy.

Overall, the trial findings “suggest that a more complete breast cancer resection may be achieved” with pegulicianine fluorescence-guided surgery and the direct visualization system, lead investigator Barbara Smith, MD, PhD, director of the breast program at Massachusetts General Hospital and professor of surgery at Harvard Medical School, both in Boston, said in a press release. “Given the low complication rate, minimal added operative time and, most importantly, the discovery of additional cancer left behind after a lumpectomy, the Lumicell [system] has the potential to be a critical adjunct to enhance standard practice for breast cancer patients.”

The system also has the potential to reduce “the patient burden of additional surgery” and decrease “costs associated with a return to the operating room,” the authors conclude.

The INSITE trial was funded by Lumicell and the National Institutes of Health. Dr. Smith reported unpaid research collaboration with Lumicell.

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

As many as 40% of lumpectomies leave positive margins that necessitate a second surgery, but a novel fluorescent imaging agent used along with a direct visualization system may improve complete resection rates, new phase 3 findings show.

Pegulicianine (Lumisight), an investigational and activatable fluorescent imaging agent used with a novel direct visualization system, helped identify residual tumor or circumvent second surgeries in about 10% of patients in the trial.

Use of the agent and direct visualization system – both from Lumicell and currently under review by the Food and Drug Administration – could provide more complete resection for patients with early breast cancer and avert the need for reexcisions, the investigators write.

The findings were published online in NEJM Evidence and were subsequently presented at the annual meeting of the American Society of Breast Surgeons.

Local recurrence following lumpectomy increases the risk of dying from breast cancer, and the risk of local recurrence is directly linked to inadequate tumor removal during lumpectomy. In about 20%-40% of lumpectomies, positive margins are identified after surgery.

To improve patient outcomes, investigators assessed whether a novel fluorescence-guided surgery system helped surgeons perform more complete resections during lumpectomy.

In the Novel Surgical Imaging for Tumor Excision (INSITE) trial, 392 patients were randomly assigned to undergo pegulicianine fluorescence-guided surgery (n = 357) or standard lumpectomy (n = 35).

To prevent surgeons from performing a smaller than standard lumpectomy in anticipation of using the pegulicianine fluorescence-guided system, patients were randomly assigned to the pegulicianine fluorescence-guided surgery group or the control group. The groups were revealed only after the surgeon completed the standard lumpectomy.

“Randomization was not designed to provide a control group for analysis of device performance,” The authors explain. “In this study design, each patient undergoing pegulicianine fluorescence-guided surgery served as her own control,” they write. The investigators compared final margin pathology after standard lumpectomy and after guided surgery. Those in the control group were included in the safety analysis.

Study participants were women aged 18 years or older who were undergoing lumpectomy for stage I–III breast cancer and/or ductal carcinoma in situ. All patients received pegulicianine 1.0 mg/kg via a 3-minute intravenous infusion 2-6 hours before surgery.

The agent produces a signal at sites of residual tumor, and a handheld probe illuminates the cavity during surgery. A tumor detection algorithm then analyzes and displays the images to the surgeon in real time – an overall process that adds about 7 minutes to the operative procedure, the authors say.

Investigators identified invasive cancers in 316 patients and in situ cancers in 76 patients. Among the 357 patients in the treatment group, 27 (7.6%) were found to have residual tumor after standard lumpectomy. For 22 patients, cavity orientations were deemed negative on standard margin evaluations, the authors report.

With use of pegulicianine fluorescence-guided surgery, positive margins were converted to negative margins for 9 of 62 patients (14.5%), potentially averting a second surgery in those patients.

Overall, the authors say that pegulicianine fluorescence-guided surgery removed residual tumor (27 of 357) or avoided second surgeries (9 of 357) in 10% of patients in the trial.

The current trial findings confirm results regarding the safety and efficacy of pegulicianine fluorescence-guided surgery and the direct visualization system that were reported in a prior multicenter feasibility study, the authors say.

Pegulicianine fluorescence-guided surgery met prespecified thresholds for removal of residual tumor and specificity, at 85.2%, but did not meet the prespecified threshold for sensitivity, which was only 49.3%.

The rate of serious adverse events with pegulicianine was 0.5% (two patients), similar to that of other contrast agents. Administration of the agent was stopped because of adverse events for six patients, the investigators write.

Serious adverse events included grade 3 hypersensitivity in one patient and an anaphylactic reaction in another. The other four adverse events included an allergic reaction, milder hypersensitivity, nausea, and pegulicianine extravasation. All adverse events resolved, and patients proceeded to standard lumpectomy.

Overall, the trial findings “suggest that a more complete breast cancer resection may be achieved” with pegulicianine fluorescence-guided surgery and the direct visualization system, lead investigator Barbara Smith, MD, PhD, director of the breast program at Massachusetts General Hospital and professor of surgery at Harvard Medical School, both in Boston, said in a press release. “Given the low complication rate, minimal added operative time and, most importantly, the discovery of additional cancer left behind after a lumpectomy, the Lumicell [system] has the potential to be a critical adjunct to enhance standard practice for breast cancer patients.”

The system also has the potential to reduce “the patient burden of additional surgery” and decrease “costs associated with a return to the operating room,” the authors conclude.

The INSITE trial was funded by Lumicell and the National Institutes of Health. Dr. Smith reported unpaid research collaboration with Lumicell.

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

The investigational drug motixafortide shows promise for improving the stem cell transplantation process in patients with multiple myeloma (MM), according to research led by investigators at Washington University in St. Louis.

Motixafortide, a   novel cyclic-peptide CXCR4 inhibitor with extended in vivo activity , appears to increase the number of stem cells that can be harvested from transplant candidates, thereby increasing the likelihood of successful transplant, the authors reported.

An application for a new drug approval is currently under review by the Food and Drug Administration.

In the prospective, international, phase 3 GENESIS clinical trial , motixafortide plus granulocyte colony-stimulating factor (G-CSF) – the standard therapy for mobilizing stem cells – significantly increased the number stem cells harvested, when compared with standard therapy plus placebo. After one collection procedure, the combination approach allowed for harvesting of an optimal number of cells in 88% versus 9% of patients who received G-CSF plus placebo. After two collections, optimal collection occurred in 92% versus 26% of patients in the groups, respectively, first author Zachary D. Crees, MD, and colleagues found.

Motixafortide plus G-CSF was also associated with a tenfold increase in the number of primitive stem cells that could be collected. These stem cells are particularly effective for reconstituting red blood cells, white blood cells, and platelets, which all are important for patients’ recovery, they noted.

Stem cells mobilized by motixafortide were also associated with increased expression of genes and genetic pathways involved in self-renewal and regeneration, which are also of benefit for increasing the effectiveness of stem cell transplantation.

The findings were published in Nature Medicine.

“Stem cell transplantation is central to the treatment of multiple myeloma, but some patients don’t see as much benefit because standard therapies can’t harvest enough stem cells for the transplant to be effective, senior author John F. DiPersio, MD, PhD, stated in a news release . “This study suggests motixafortide works extremely well in combination with [G-CSF] in mobilizing stem cells in patients with multiple myeloma.

“The study also found that the combination worked rapidly and was generally well tolerated by patients,” added Dr. DiPersio, the Virginia E. & Sam J. Goldman Professor of Medicine at Siteman Cancer Center at Barnes-Jewish Hospital and Washington University.

Dr. DiPersio is the lead author of another study investigating therapies beyond stem cell transplants. He and his colleagues recently reported the first comprehensive genomic and protein-based analysis of bone marrow samples from patients with multiple myeloma in an effort to identify targets for immunotherapies.

That study, published online in Cancer Research, identified 53 genes that could be targets, including 38 that are responsible for creating abnormal proteins on the surface of multiple myeloma cells; 11 of the 38 had not been previously identified as potential targets.

Dr. DiPersio and Dr. Crees, an assistant professor of medicine and the assistant clinical director of the Washington University Center for Gene and Cellular Immunotherapy, are also evaluating motixafortide’s potential for mobilizing stem cells to support “the genetic correction of the inherited disease sickle cell anemia.”

“This work is of particular importance because patients with sickle cell disease can’t be treated with G-CSF … due to dangerous side effects,” the news release stated. “The hope is that development of a novel, effective, and well-tolerated stem cell mobilizing regimen for a viral-based gene therapy approach using CRISPR-based gene editing will lead to improved outcomes for patients with sickle cell disease.”

The study published in Nature Medicine was supported by the National Institutes of Health and BioLineRx, which makes motixafortide. The study published in Cancer Research was supported by the Paula C. And Rodger O. Riney Blood Cancer Research Fund and the National Cancer Institute.

Dr. Crees reported research funding from BioLineRx. Dr. DiPersio reported relationships with Magenta Therapeutics, WUGEN, Incyte, RiverVest Venture Partners, Cellworks Group, Amphivena Therapeutics, NeoImmune Tech, Macrogenics, and BioLineRx.

Correction, 4/26/23: The headline on an earlier version of this article mischaracterized the study findings.

The investigational drug motixafortide shows promise for improving the stem cell transplantation process in patients with multiple myeloma (MM), according to research led by investigators at Washington University in St. Louis.

Motixafortide, a   novel cyclic-peptide CXCR4 inhibitor with extended in vivo activity , appears to increase the number of stem cells that can be harvested from transplant candidates, thereby increasing the likelihood of successful transplant, the authors reported.

An application for a new drug approval is currently under review by the Food and Drug Administration.

In the prospective, international, phase 3 GENESIS clinical trial , motixafortide plus granulocyte colony-stimulating factor (G-CSF) – the standard therapy for mobilizing stem cells – significantly increased the number stem cells harvested, when compared with standard therapy plus placebo. After one collection procedure, the combination approach allowed for harvesting of an optimal number of cells in 88% versus 9% of patients who received G-CSF plus placebo. After two collections, optimal collection occurred in 92% versus 26% of patients in the groups, respectively, first author Zachary D. Crees, MD, and colleagues found.

Motixafortide plus G-CSF was also associated with a tenfold increase in the number of primitive stem cells that could be collected. These stem cells are particularly effective for reconstituting red blood cells, white blood cells, and platelets, which all are important for patients’ recovery, they noted.

Stem cells mobilized by motixafortide were also associated with increased expression of genes and genetic pathways involved in self-renewal and regeneration, which are also of benefit for increasing the effectiveness of stem cell transplantation.

The findings were published in Nature Medicine.

“Stem cell transplantation is central to the treatment of multiple myeloma, but some patients don’t see as much benefit because standard therapies can’t harvest enough stem cells for the transplant to be effective, senior author John F. DiPersio, MD, PhD, stated in a news release . “This study suggests motixafortide works extremely well in combination with [G-CSF] in mobilizing stem cells in patients with multiple myeloma.

“The study also found that the combination worked rapidly and was generally well tolerated by patients,” added Dr. DiPersio, the Virginia E. & Sam J. Goldman Professor of Medicine at Siteman Cancer Center at Barnes-Jewish Hospital and Washington University.

Dr. DiPersio is the lead author of another study investigating therapies beyond stem cell transplants. He and his colleagues recently reported the first comprehensive genomic and protein-based analysis of bone marrow samples from patients with multiple myeloma in an effort to identify targets for immunotherapies.

That study, published online in Cancer Research, identified 53 genes that could be targets, including 38 that are responsible for creating abnormal proteins on the surface of multiple myeloma cells; 11 of the 38 had not been previously identified as potential targets.

Dr. DiPersio and Dr. Crees, an assistant professor of medicine and the assistant clinical director of the Washington University Center for Gene and Cellular Immunotherapy, are also evaluating motixafortide’s potential for mobilizing stem cells to support “the genetic correction of the inherited disease sickle cell anemia.”

“This work is of particular importance because patients with sickle cell disease can’t be treated with G-CSF … due to dangerous side effects,” the news release stated. “The hope is that development of a novel, effective, and well-tolerated stem cell mobilizing regimen for a viral-based gene therapy approach using CRISPR-based gene editing will lead to improved outcomes for patients with sickle cell disease.”

The study published in Nature Medicine was supported by the National Institutes of Health and BioLineRx, which makes motixafortide. The study published in Cancer Research was supported by the Paula C. And Rodger O. Riney Blood Cancer Research Fund and the National Cancer Institute.

Dr. Crees reported research funding from BioLineRx. Dr. DiPersio reported relationships with Magenta Therapeutics, WUGEN, Incyte, RiverVest Venture Partners, Cellworks Group, Amphivena Therapeutics, NeoImmune Tech, Macrogenics, and BioLineRx.

Correction, 4/26/23: The headline on an earlier version of this article mischaracterized the study findings.

The investigational drug motixafortide shows promise for improving the stem cell transplantation process in patients with multiple myeloma (MM), according to research led by investigators at Washington University in St. Louis.

Motixafortide, a   novel cyclic-peptide CXCR4 inhibitor with extended in vivo activity , appears to increase the number of stem cells that can be harvested from transplant candidates, thereby increasing the likelihood of successful transplant, the authors reported.

An application for a new drug approval is currently under review by the Food and Drug Administration.

In the prospective, international, phase 3 GENESIS clinical trial , motixafortide plus granulocyte colony-stimulating factor (G-CSF) – the standard therapy for mobilizing stem cells – significantly increased the number stem cells harvested, when compared with standard therapy plus placebo. After one collection procedure, the combination approach allowed for harvesting of an optimal number of cells in 88% versus 9% of patients who received G-CSF plus placebo. After two collections, optimal collection occurred in 92% versus 26% of patients in the groups, respectively, first author Zachary D. Crees, MD, and colleagues found.

Motixafortide plus G-CSF was also associated with a tenfold increase in the number of primitive stem cells that could be collected. These stem cells are particularly effective for reconstituting red blood cells, white blood cells, and platelets, which all are important for patients’ recovery, they noted.

Stem cells mobilized by motixafortide were also associated with increased expression of genes and genetic pathways involved in self-renewal and regeneration, which are also of benefit for increasing the effectiveness of stem cell transplantation.

The findings were published in Nature Medicine.

“Stem cell transplantation is central to the treatment of multiple myeloma, but some patients don’t see as much benefit because standard therapies can’t harvest enough stem cells for the transplant to be effective, senior author John F. DiPersio, MD, PhD, stated in a news release . “This study suggests motixafortide works extremely well in combination with [G-CSF] in mobilizing stem cells in patients with multiple myeloma.

“The study also found that the combination worked rapidly and was generally well tolerated by patients,” added Dr. DiPersio, the Virginia E. & Sam J. Goldman Professor of Medicine at Siteman Cancer Center at Barnes-Jewish Hospital and Washington University.

Dr. DiPersio is the lead author of another study investigating therapies beyond stem cell transplants. He and his colleagues recently reported the first comprehensive genomic and protein-based analysis of bone marrow samples from patients with multiple myeloma in an effort to identify targets for immunotherapies.

That study, published online in Cancer Research, identified 53 genes that could be targets, including 38 that are responsible for creating abnormal proteins on the surface of multiple myeloma cells; 11 of the 38 had not been previously identified as potential targets.

Dr. DiPersio and Dr. Crees, an assistant professor of medicine and the assistant clinical director of the Washington University Center for Gene and Cellular Immunotherapy, are also evaluating motixafortide’s potential for mobilizing stem cells to support “the genetic correction of the inherited disease sickle cell anemia.”

“This work is of particular importance because patients with sickle cell disease can’t be treated with G-CSF … due to dangerous side effects,” the news release stated. “The hope is that development of a novel, effective, and well-tolerated stem cell mobilizing regimen for a viral-based gene therapy approach using CRISPR-based gene editing will lead to improved outcomes for patients with sickle cell disease.”

The study published in Nature Medicine was supported by the National Institutes of Health and BioLineRx, which makes motixafortide. The study published in Cancer Research was supported by the Paula C. And Rodger O. Riney Blood Cancer Research Fund and the National Cancer Institute.

Dr. Crees reported research funding from BioLineRx. Dr. DiPersio reported relationships with Magenta Therapeutics, WUGEN, Incyte, RiverVest Venture Partners, Cellworks Group, Amphivena Therapeutics, NeoImmune Tech, Macrogenics, and BioLineRx.

Correction, 4/26/23: The headline on an earlier version of this article mischaracterized the study findings.

The Food and Drug Administration has approved retifanlimab-dlwr (Zynyz), an intravenous programmed death–1 (PD-1) inhibitor, for the treatment of adults with metastatic or recurrent locally advanced Merkel cell carcinoma (MCC), the agency announced.

This marks the first regulatory approval for the PD-1 inhibitor. The FDA granted accelerated approval for the drug on the basis of tumor response rate and duration of response from the POD1UM-201 trial. Drugmaker Incyte said that “continued approval of Zynyz for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.”

MCC is a rare and aggressive skin cancer with a high rate of metastatic disease and an estimated 5-year overall survival of just 14% among those who present with metastatic disease. Incidence is rapidly increasing in the United States, particularly among adults older than 65 years, Incyte noted.

“More than a third of patients with MCC present with regional or distant metastases, which are associated with high rates of mortality,” principal author Shailender Bhatia, MD, of the University of Washington and Fred Hutchinson Cancer Center, both in Seattle, said in a news release. “The approval of Zynyz offers health care providers another first-line treatment option against MCC that can result in durable responses in patients with metastatic disease.”

POD1UM-201 was an open-label, single-arm, phase 2 study that evaluated the agent in 65 systemic treatment–naive adults with metastatic or recurrent locally advanced MCC.

Overall, 52% of patients had an objective response rate. A complete response was observed in 12 patients (18%), and a partial response was observed in 22 patients (34%).

Duration of response ranged from 1.1 to 24.9 months; 76% of responders experienced responses of 6 months or longer, and 62% experienced responses of 12 months or longer.

Study participants received a 500-mg dose of retifanlimab every 4 weeks for up to 24 weeks or until disease progression or unacceptable toxicity. Serious adverse events occurred in 22% of patients and most often included fatigue, arrhythmia, and pneumonitis; 11% of patients discontinued treatment because of serious adverse events.

Retifanlimab may cause a severe or life-threatening immune response during treatment or after discontinuation. Patients should be advised to immediately report any new or worsening signs or symptoms to their health care provider. Side effects can also be reported to the FDA.

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

The Food and Drug Administration has approved retifanlimab-dlwr (Zynyz), an intravenous programmed death–1 (PD-1) inhibitor, for the treatment of adults with metastatic or recurrent locally advanced Merkel cell carcinoma (MCC), the agency announced.

This marks the first regulatory approval for the PD-1 inhibitor. The FDA granted accelerated approval for the drug on the basis of tumor response rate and duration of response from the POD1UM-201 trial. Drugmaker Incyte said that “continued approval of Zynyz for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.”

MCC is a rare and aggressive skin cancer with a high rate of metastatic disease and an estimated 5-year overall survival of just 14% among those who present with metastatic disease. Incidence is rapidly increasing in the United States, particularly among adults older than 65 years, Incyte noted.

“More than a third of patients with MCC present with regional or distant metastases, which are associated with high rates of mortality,” principal author Shailender Bhatia, MD, of the University of Washington and Fred Hutchinson Cancer Center, both in Seattle, said in a news release. “The approval of Zynyz offers health care providers another first-line treatment option against MCC that can result in durable responses in patients with metastatic disease.”

POD1UM-201 was an open-label, single-arm, phase 2 study that evaluated the agent in 65 systemic treatment–naive adults with metastatic or recurrent locally advanced MCC.

Overall, 52% of patients had an objective response rate. A complete response was observed in 12 patients (18%), and a partial response was observed in 22 patients (34%).

Duration of response ranged from 1.1 to 24.9 months; 76% of responders experienced responses of 6 months or longer, and 62% experienced responses of 12 months or longer.

Study participants received a 500-mg dose of retifanlimab every 4 weeks for up to 24 weeks or until disease progression or unacceptable toxicity. Serious adverse events occurred in 22% of patients and most often included fatigue, arrhythmia, and pneumonitis; 11% of patients discontinued treatment because of serious adverse events.

Retifanlimab may cause a severe or life-threatening immune response during treatment or after discontinuation. Patients should be advised to immediately report any new or worsening signs or symptoms to their health care provider. Side effects can also be reported to the FDA.

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

The Food and Drug Administration has approved retifanlimab-dlwr (Zynyz), an intravenous programmed death–1 (PD-1) inhibitor, for the treatment of adults with metastatic or recurrent locally advanced Merkel cell carcinoma (MCC), the agency announced.

This marks the first regulatory approval for the PD-1 inhibitor. The FDA granted accelerated approval for the drug on the basis of tumor response rate and duration of response from the POD1UM-201 trial. Drugmaker Incyte said that “continued approval of Zynyz for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.”

MCC is a rare and aggressive skin cancer with a high rate of metastatic disease and an estimated 5-year overall survival of just 14% among those who present with metastatic disease. Incidence is rapidly increasing in the United States, particularly among adults older than 65 years, Incyte noted.

“More than a third of patients with MCC present with regional or distant metastases, which are associated with high rates of mortality,” principal author Shailender Bhatia, MD, of the University of Washington and Fred Hutchinson Cancer Center, both in Seattle, said in a news release. “The approval of Zynyz offers health care providers another first-line treatment option against MCC that can result in durable responses in patients with metastatic disease.”

POD1UM-201 was an open-label, single-arm, phase 2 study that evaluated the agent in 65 systemic treatment–naive adults with metastatic or recurrent locally advanced MCC.

Overall, 52% of patients had an objective response rate. A complete response was observed in 12 patients (18%), and a partial response was observed in 22 patients (34%).

Duration of response ranged from 1.1 to 24.9 months; 76% of responders experienced responses of 6 months or longer, and 62% experienced responses of 12 months or longer.

Study participants received a 500-mg dose of retifanlimab every 4 weeks for up to 24 weeks or until disease progression or unacceptable toxicity. Serious adverse events occurred in 22% of patients and most often included fatigue, arrhythmia, and pneumonitis; 11% of patients discontinued treatment because of serious adverse events.

Retifanlimab may cause a severe or life-threatening immune response during treatment or after discontinuation. Patients should be advised to immediately report any new or worsening signs or symptoms to their health care provider. Side effects can also be reported to the FDA.

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

Patients who are already depressed before they receive a lung cancer diagnosis are more likely to have a worse overall survival (OS), and the driver for this may be inflammation, suggests a new study.

The findings underscore the importance of assessing and treating depression in patients with cancer, particularly given the high rate of depression among those with lung cancer versus other types of cancer, the investigators said.

The study involved 186 patients with newly diagnosed stage IV non–small cell lung cancer (NSCLC), of whom 35% had self-reported moderate to severe depressive symptoms.

Depression was reliably associated with lung-relevant systemic inflammation responses (SIRs), which included neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and Advanced Lung Cancer Inflammation Index (ALI) score.

These SIRs were prognostic for 2-year OS.

Overall mortality at 2 years was 61%. Higher NLRs and PLRs and lower ALI scores all predicted worse OS (hazard ratio, 1.91, 2.08, and 0.53, respectively).

The findings were published online in PLoS ONE (2023 Feb 24.

“These patients with high levels of depression are at much higher risk for poor outcomes,” but the key finding was that patients with the highest depression levels were driving the relationship, lead author Barbara Andersen, PhD, professor of psychology at Ohio State University, Columbus, stated in a press release.

“It was patients with high depression levels who had strikingly higher inflammation levels, and that is what really drove the correlation we saw,” she explained.

For example, 56% of patients with no depression symptoms or only mild depression symptoms had a PLR above the cutoff for dangerous levels of inflammation, compared with 42% whose PLR was below the cutoff. However, among those with high depression levels, 77% and 23% had a PLR above and below the cutoff, respectively.

“These highly depressed patients were 1.3-3 times more likely to have high inflammation levels, even after controlling for other factors related to inflammation biomarker levels, including demographics and smoking status,” Dr. Andersen noted.

“Depression levels may be as important or even more important than other factors that have been associated with how people fare with lung cancer,” she suggested.

In a previous study, the team controlled for baseline depression and found that “the trajectory of depression from diagnosis through 2 years (18 assessments) predicted NSCLC patients’ survival (HR, 1.09), above and beyond baseline depression, sociodemographics, smoking status, cell type, and receipt of targeted treatments and immunotherapies.”

“Taken together, data support psychological, behavioral, and biologic toxicities of depression capable of influencing treatment response and/or survival,” they wrote.

“The results may help explain why a substantial portion of lung cancer patients fail to respond to new immunotherapy and targeted treatments that have led to significantly longer survival for many people with the disease,” Dr. Andersen said.

The investigators concluded that “intensive study of depression among patients with NSCLC, combined with measures of cell biology, inflammation, and immunity, is needed to extend these findings and discover their mechanisms, with the long-term aim to improve patients’ quality of life, treatment responses, and longevity.”

This study was funded by the Ohio State University Comprehensive Cancer Center and Pelotonia through grants to individual authors. Dr. Andersen reported having no relevant disclosures.

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

Patients who are already depressed before they receive a lung cancer diagnosis are more likely to have a worse overall survival (OS), and the driver for this may be inflammation, suggests a new study.

The findings underscore the importance of assessing and treating depression in patients with cancer, particularly given the high rate of depression among those with lung cancer versus other types of cancer, the investigators said.

The study involved 186 patients with newly diagnosed stage IV non–small cell lung cancer (NSCLC), of whom 35% had self-reported moderate to severe depressive symptoms.

Depression was reliably associated with lung-relevant systemic inflammation responses (SIRs), which included neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and Advanced Lung Cancer Inflammation Index (ALI) score.

These SIRs were prognostic for 2-year OS.

Overall mortality at 2 years was 61%. Higher NLRs and PLRs and lower ALI scores all predicted worse OS (hazard ratio, 1.91, 2.08, and 0.53, respectively).

The findings were published online in PLoS ONE (2023 Feb 24.

“These patients with high levels of depression are at much higher risk for poor outcomes,” but the key finding was that patients with the highest depression levels were driving the relationship, lead author Barbara Andersen, PhD, professor of psychology at Ohio State University, Columbus, stated in a press release.

“It was patients with high depression levels who had strikingly higher inflammation levels, and that is what really drove the correlation we saw,” she explained.

For example, 56% of patients with no depression symptoms or only mild depression symptoms had a PLR above the cutoff for dangerous levels of inflammation, compared with 42% whose PLR was below the cutoff. However, among those with high depression levels, 77% and 23% had a PLR above and below the cutoff, respectively.

“These highly depressed patients were 1.3-3 times more likely to have high inflammation levels, even after controlling for other factors related to inflammation biomarker levels, including demographics and smoking status,” Dr. Andersen noted.

“Depression levels may be as important or even more important than other factors that have been associated with how people fare with lung cancer,” she suggested.

In a previous study, the team controlled for baseline depression and found that “the trajectory of depression from diagnosis through 2 years (18 assessments) predicted NSCLC patients’ survival (HR, 1.09), above and beyond baseline depression, sociodemographics, smoking status, cell type, and receipt of targeted treatments and immunotherapies.”

“Taken together, data support psychological, behavioral, and biologic toxicities of depression capable of influencing treatment response and/or survival,” they wrote.

“The results may help explain why a substantial portion of lung cancer patients fail to respond to new immunotherapy and targeted treatments that have led to significantly longer survival for many people with the disease,” Dr. Andersen said.

The investigators concluded that “intensive study of depression among patients with NSCLC, combined with measures of cell biology, inflammation, and immunity, is needed to extend these findings and discover their mechanisms, with the long-term aim to improve patients’ quality of life, treatment responses, and longevity.”

This study was funded by the Ohio State University Comprehensive Cancer Center and Pelotonia through grants to individual authors. Dr. Andersen reported having no relevant disclosures.

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

Patients who are already depressed before they receive a lung cancer diagnosis are more likely to have a worse overall survival (OS), and the driver for this may be inflammation, suggests a new study.

The findings underscore the importance of assessing and treating depression in patients with cancer, particularly given the high rate of depression among those with lung cancer versus other types of cancer, the investigators said.

The study involved 186 patients with newly diagnosed stage IV non–small cell lung cancer (NSCLC), of whom 35% had self-reported moderate to severe depressive symptoms.

Depression was reliably associated with lung-relevant systemic inflammation responses (SIRs), which included neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and Advanced Lung Cancer Inflammation Index (ALI) score.

These SIRs were prognostic for 2-year OS.

Overall mortality at 2 years was 61%. Higher NLRs and PLRs and lower ALI scores all predicted worse OS (hazard ratio, 1.91, 2.08, and 0.53, respectively).

The findings were published online in PLoS ONE (2023 Feb 24.

“These patients with high levels of depression are at much higher risk for poor outcomes,” but the key finding was that patients with the highest depression levels were driving the relationship, lead author Barbara Andersen, PhD, professor of psychology at Ohio State University, Columbus, stated in a press release.

“It was patients with high depression levels who had strikingly higher inflammation levels, and that is what really drove the correlation we saw,” she explained.

For example, 56% of patients with no depression symptoms or only mild depression symptoms had a PLR above the cutoff for dangerous levels of inflammation, compared with 42% whose PLR was below the cutoff. However, among those with high depression levels, 77% and 23% had a PLR above and below the cutoff, respectively.

“These highly depressed patients were 1.3-3 times more likely to have high inflammation levels, even after controlling for other factors related to inflammation biomarker levels, including demographics and smoking status,” Dr. Andersen noted.

“Depression levels may be as important or even more important than other factors that have been associated with how people fare with lung cancer,” she suggested.

In a previous study, the team controlled for baseline depression and found that “the trajectory of depression from diagnosis through 2 years (18 assessments) predicted NSCLC patients’ survival (HR, 1.09), above and beyond baseline depression, sociodemographics, smoking status, cell type, and receipt of targeted treatments and immunotherapies.”

“Taken together, data support psychological, behavioral, and biologic toxicities of depression capable of influencing treatment response and/or survival,” they wrote.

“The results may help explain why a substantial portion of lung cancer patients fail to respond to new immunotherapy and targeted treatments that have led to significantly longer survival for many people with the disease,” Dr. Andersen said.

The investigators concluded that “intensive study of depression among patients with NSCLC, combined with measures of cell biology, inflammation, and immunity, is needed to extend these findings and discover their mechanisms, with the long-term aim to improve patients’ quality of life, treatment responses, and longevity.”

This study was funded by the Ohio State University Comprehensive Cancer Center and Pelotonia through grants to individual authors. Dr. Andersen reported having no relevant disclosures.

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

Venetoclax (Venclexta) shows promise as salvage therapy for patients with relapsed or refractory hairy cell leukemia (HCL), according to a small study in which five of six patients responded to the drug when used alone or in combination with rituximab.

Venetoclax is already approved for adults with chronic lymphocytic leukemia, small lymphocytic leukemia, and as part of a treatment combination in certain patients with acute myeloid leukemia.

The new findings suggest that the drug could also be a chemotherapy-free treatment option for HCL patients after the failure of multiple prior lines of therapy, including vemurafenib plus rituximab, the investigators wrote in a letter to the editor published in the New England Journal of Medicine.

Treatment options for such patients are limited, they noted.

Enrico Tiacci, MD, of the University of Perugia (Italy), and colleagues decided to explore the use of venetoclax in this patient population after reports of in vitro findings showing a possible benefit.

The investigators administered the drug off-label to six patients who had received vemurafenib plus rituximab as their most recent prior therapy; one was resistant and five relapsed after that therapy, they reported. Venetoclax was delivered in 29-day cycles.

After 6 or 12 cycles, two patients experienced complete remission with minimal residual disease (MRD), and one had partial remission, although each had incomplete platelet recovery.

Adding rituximab at a dose of 375 mg per square meter of body-surface area for three to eight cycles improved the depth of response in a patient who had a previous minor response, further reduced MRD in one who had a complete remission to venetoclax, and led to hematologic remission in one who had no response to venetoclax, they noted.

Progression-free survival ranged from 23 to 53-plus months in all five patients who did not have early progression and was similar or better than PFS seen after vemurafenib plus rituximab.

The main toxic effect of venetoclax was worsening of baseline neutropenia, which was sometimes complicated by infections or febrile neutropenia and was managed by dose reductions and granulocyte colony-stimulating factor.

“Thus, venetoclax with or without rituximab may serve as a safe and effective salvage option after failure of vemurafenib plus rituximab treatment, especially in patients who do not require a rapid recovery of blood count,” they concluded.

The study was supported by grants from Fondazione Associazione Italiana per la Ricerca sul Cancro and the Italian Ministry of Health.

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

Venetoclax (Venclexta) shows promise as salvage therapy for patients with relapsed or refractory hairy cell leukemia (HCL), according to a small study in which five of six patients responded to the drug when used alone or in combination with rituximab.

Venetoclax is already approved for adults with chronic lymphocytic leukemia, small lymphocytic leukemia, and as part of a treatment combination in certain patients with acute myeloid leukemia.

The new findings suggest that the drug could also be a chemotherapy-free treatment option for HCL patients after the failure of multiple prior lines of therapy, including vemurafenib plus rituximab, the investigators wrote in a letter to the editor published in the New England Journal of Medicine.

Treatment options for such patients are limited, they noted.

Enrico Tiacci, MD, of the University of Perugia (Italy), and colleagues decided to explore the use of venetoclax in this patient population after reports of in vitro findings showing a possible benefit.

The investigators administered the drug off-label to six patients who had received vemurafenib plus rituximab as their most recent prior therapy; one was resistant and five relapsed after that therapy, they reported. Venetoclax was delivered in 29-day cycles.

After 6 or 12 cycles, two patients experienced complete remission with minimal residual disease (MRD), and one had partial remission, although each had incomplete platelet recovery.

Adding rituximab at a dose of 375 mg per square meter of body-surface area for three to eight cycles improved the depth of response in a patient who had a previous minor response, further reduced MRD in one who had a complete remission to venetoclax, and led to hematologic remission in one who had no response to venetoclax, they noted.

Progression-free survival ranged from 23 to 53-plus months in all five patients who did not have early progression and was similar or better than PFS seen after vemurafenib plus rituximab.

The main toxic effect of venetoclax was worsening of baseline neutropenia, which was sometimes complicated by infections or febrile neutropenia and was managed by dose reductions and granulocyte colony-stimulating factor.

“Thus, venetoclax with or without rituximab may serve as a safe and effective salvage option after failure of vemurafenib plus rituximab treatment, especially in patients who do not require a rapid recovery of blood count,” they concluded.

The study was supported by grants from Fondazione Associazione Italiana per la Ricerca sul Cancro and the Italian Ministry of Health.

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

Venetoclax (Venclexta) shows promise as salvage therapy for patients with relapsed or refractory hairy cell leukemia (HCL), according to a small study in which five of six patients responded to the drug when used alone or in combination with rituximab.

Venetoclax is already approved for adults with chronic lymphocytic leukemia, small lymphocytic leukemia, and as part of a treatment combination in certain patients with acute myeloid leukemia.

The new findings suggest that the drug could also be a chemotherapy-free treatment option for HCL patients after the failure of multiple prior lines of therapy, including vemurafenib plus rituximab, the investigators wrote in a letter to the editor published in the New England Journal of Medicine.

Treatment options for such patients are limited, they noted.

Enrico Tiacci, MD, of the University of Perugia (Italy), and colleagues decided to explore the use of venetoclax in this patient population after reports of in vitro findings showing a possible benefit.

The investigators administered the drug off-label to six patients who had received vemurafenib plus rituximab as their most recent prior therapy; one was resistant and five relapsed after that therapy, they reported. Venetoclax was delivered in 29-day cycles.

After 6 or 12 cycles, two patients experienced complete remission with minimal residual disease (MRD), and one had partial remission, although each had incomplete platelet recovery.

Adding rituximab at a dose of 375 mg per square meter of body-surface area for three to eight cycles improved the depth of response in a patient who had a previous minor response, further reduced MRD in one who had a complete remission to venetoclax, and led to hematologic remission in one who had no response to venetoclax, they noted.

Progression-free survival ranged from 23 to 53-plus months in all five patients who did not have early progression and was similar or better than PFS seen after vemurafenib plus rituximab.

The main toxic effect of venetoclax was worsening of baseline neutropenia, which was sometimes complicated by infections or febrile neutropenia and was managed by dose reductions and granulocyte colony-stimulating factor.

“Thus, venetoclax with or without rituximab may serve as a safe and effective salvage option after failure of vemurafenib plus rituximab treatment, especially in patients who do not require a rapid recovery of blood count,” they concluded.

The study was supported by grants from Fondazione Associazione Italiana per la Ricerca sul Cancro and the Italian Ministry of Health.

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

The Food and Drug Administration has made changes to existing mammography regulations.

A final rule, updating the regulations issued under the Mammography Quality Standards Act of 1992, requires that mammography facilities notify patients about the density of their breasts, strengthens the FDA’s oversight of facilities, and provides guidance to help physicians better categorize and assess mammograms, according to a March 9 press release.

The rule requires implementation of the changes within 18 months.

According to the final rule document, the updates are “intended to improve the delivery of mammography services” in ways that reflect changes in mammography technology, quality standards, and the way results are categorized, reported, and communicated to patients and providers.

For instance, mammography reports must include an assessment of breast density to provide greater detail on the potential limitations of the mammogram results and allow patients and physicians to make more informed decisions, such as the possibility of additional imaging for women with dense breast tissue.

“Today’s action represents the agency’s broader commitment to support innovation to prevent, detect and treat cancer,” said Hilary Marston, MD, MPH, FDA’s chief medical officer, in the agency’s press release. The FDA remains “committed to advancing efforts to improve the health of women and strengthen the fight against breast cancer.”

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

The Food and Drug Administration has made changes to existing mammography regulations.

A final rule, updating the regulations issued under the Mammography Quality Standards Act of 1992, requires that mammography facilities notify patients about the density of their breasts, strengthens the FDA’s oversight of facilities, and provides guidance to help physicians better categorize and assess mammograms, according to a March 9 press release.

The rule requires implementation of the changes within 18 months.

According to the final rule document, the updates are “intended to improve the delivery of mammography services” in ways that reflect changes in mammography technology, quality standards, and the way results are categorized, reported, and communicated to patients and providers.

For instance, mammography reports must include an assessment of breast density to provide greater detail on the potential limitations of the mammogram results and allow patients and physicians to make more informed decisions, such as the possibility of additional imaging for women with dense breast tissue.

“Today’s action represents the agency’s broader commitment to support innovation to prevent, detect and treat cancer,” said Hilary Marston, MD, MPH, FDA’s chief medical officer, in the agency’s press release. The FDA remains “committed to advancing efforts to improve the health of women and strengthen the fight against breast cancer.”

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

The Food and Drug Administration has made changes to existing mammography regulations.

A final rule, updating the regulations issued under the Mammography Quality Standards Act of 1992, requires that mammography facilities notify patients about the density of their breasts, strengthens the FDA’s oversight of facilities, and provides guidance to help physicians better categorize and assess mammograms, according to a March 9 press release.

The rule requires implementation of the changes within 18 months.

According to the final rule document, the updates are “intended to improve the delivery of mammography services” in ways that reflect changes in mammography technology, quality standards, and the way results are categorized, reported, and communicated to patients and providers.

For instance, mammography reports must include an assessment of breast density to provide greater detail on the potential limitations of the mammogram results and allow patients and physicians to make more informed decisions, such as the possibility of additional imaging for women with dense breast tissue.

“Today’s action represents the agency’s broader commitment to support innovation to prevent, detect and treat cancer,” said Hilary Marston, MD, MPH, FDA’s chief medical officer, in the agency’s press release. The FDA remains “committed to advancing efforts to improve the health of women and strengthen the fight against breast cancer.”

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

Ponatinib, a potent third-generation tyrosine kinase inhibitor (TKI), showed superior efficacy and comparable safety versus the first-generation TKI imatinib in patients with newly diagnosed Philadelphia chromosome–positive acute lymphoblastic leukemia (PH+ALL).

The agents were evaluated in the randomized, open-label, phase 3 PhALLCON study, the first head-to-head comparison of ponatinib and imatinib in combination with reduced-intensity chemotherapy in the Ph+ALL population.

Overall, patients in the ponatinib arm experienced a significantly higher minimal residual disease (MRD)–negative complete response rate as well as deeper and more durable responses compared with those in the imatinib arm, the investigators reported.

The findings were presented during an American Society of Clinical Oncology virtual plenary session.

In adults with ALL, Ph+ disease is the most frequent genetic subtype, accounting for about one third of cases. The current standard of care for newly diagnosed Ph+ALL, also known as BCR-ABL-1–positive ALL, is BCR-ABL1 TKIs in combination with chemotherapy or steroids. However, when treated with first- or second-generation TKIs, patients eventually progress due to the emergence of treatment resistance.

Before the advent of TKI therapies, Ph+ALL had a very poor prognosis, but the development of imatinib in 2001 was transformative, said Marlise R. Luskin, MD, a senior physician at Dana-Farber Cancer Institute, Boston, in the ASCO plenary session, exploring the state of the science.

Added to “backbone” chemotherapy regimens, imatinib improved complete response rates, increased eligibility for stem cell transplantation, and improved overall survival. Second-generation TKIs, including dasatinib and nilotinib further improved outcomes, said Dr. Luskin, also assistant professor at Harvard Medical School, Boston.

More recently, ponatinib has emerged as a promising treatment given its unique action against the ABLA1 T315I KD mutation present in about 75% of cases that relapse as well as the findings of improved MRD-negative complete response rates and event-free survival in retrospective studies, Dr. Luskin said.

The PhALLCON study was designed to further investigate promising results seen in retrospective studies of ponatinib.

To assess ponatinib versus imatinib, patients were enrolled and randomized two to one to receive either a 30-mg once-daily starting dose of ponatinib or a once-daily 600 mg dose of imatinib plus reduced-intensity chemotherapy. After cycle 20, patients received single agent ponatinib or imatinib until disease progression or unacceptable toxicity.

Of the 245 enrolled, 78 remained on treatment at the August 2022 data cutoff, including 42% of those in the ponatinib arm and 12% in the imatinib arm. The most common reasons for discontinuation included hematopoietic stem cell transplantation (31% for ponatinib and 37% for imatinib), adverse events (12% in both arms), and lack of efficacy (7% and 26%, respectively).

At median follow-up of 20 months among 164 patients in the ponatinib arm and 18 months among 81 patients in the imatinib arm, the MRD-negative complete response rates were 34.4% and 16.7%, respectively, said first author Elias J. Jabbour, MD, a professor of medicine at the University of Texas MD Anderson Cancer Center, Houston.

A trend toward improved event-free survival was also observed in the ponatinib arm, but the data were not mature at the time of the analysis, Dr. Jabbour noted.

The two treatments showed comparable safety. Treatment-emergent adverse event rates of any grade and of grade 3 or higher were similar in the two study arms. Arterial occlusive events were infrequent and were also similar between the arms.

“Taken together, for this patient population, the efficacy and safety results demonstrate a favorable risk-benefit assessment for ponatinib, which should be considered a standard of care for frontline therapy in patents with newly diagnosed Ph+ALL,” Dr. Jabbour said.

Although the PhALLCON findings are encouraging, invited discussant Anjali S. Advani, MD, of the Cleveland Clinic, noted some study “pitfalls and caveats,” including the generally younger age and low incidence of cardiovascular risk factors in the study population, which raises questions about the ability to extrapolate the findings to “the larger population, which may be older and have more comorbidities.”

Dr. Advani also said that the ponatinib versus imatinib comparison is a reasonable one, but that most clinicians are now using dasatinib, so “it would have been nice to have this comparison.”

Additionally, “the landscape is now changing with the use of blinatumomab plus TKIs – either dasatinib or ponatinib – in the up-front setting.”

“There is data now from various groups ... showing excellent results, although longer follow-up is needed on all of these,” she said.

One such study is the GIMEMA ALL2820 trial looking at ponatinib plus blinatumomab versus imatinib plus chemotherapy, said Nicolas Boissel, MD, PhD, of Hôpital Saint-Louis in Paris, an invited discussant who addressed the European perspective on the PhALLCON results.

“It is expected that access to ponatinib will be delayed in Europe, compared with the U.S., so meanwhile, clinical trials remain a good option to give access to ponatinib frontline,” he said.

Going forward, Dr. Boissel said it will be important to determine the role of second-generation TKIs in patients who are ineligible to receive ponatinib, the treatment duration needed to reduce long-term risk of relapse, and the potential for eliminating the need for postremission chemotherapy and stem cell transplantation in certain patients.

Dr. Advani added that when evaluating and comparing treatments, it will be important to look at genomic alterations and BCR-ABL mutation status, age and comorbidities, and patterns of disease relapse, including relapse sites and genomics. Longer follow-up results for event-free survival and overall survival are also needed.

“I think, particularly in younger patients with relatively few or no cardiovascular comorbidities, [ponatinib plus reduced-intensity chemotherapy] represents a really exciting option,” Dr. Advani said. “What’s difficult is that the landscape is changing quickly in this field, and so is the standard of care. I think what we struggle with is whether we should be using antibody-based therapies plus TKIs or look at an approach such as this, and further studies are going to be needed to answer that question.”

Dr. Jabbour disclosed ties with Pfizer, Takeda, Amgen, AbbVie, Bristol-Myers Squibb, Incyte, Adaptive Biotechnologies, Astellas Pharma, Genentech, and Ascentage Pharma. Dr. Luskin reported relationships with Pfizer, Novartis, and Abbvie. Dr. Advani disclosed ties with Novartis, Glycomimetics, Kite Pharma, Seattle Genetics, Amgen, Beam Therapeutics, Mkarta, Taiho Oncology, Jazz Pharmaceuticals, Pfizer, and Kura Oncology. Dr. Boissel reported relationships with Amgen, ARIAD/Incyte, Novartis, SERVIER, and Astellas Pharma.

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

Ponatinib, a potent third-generation tyrosine kinase inhibitor (TKI), showed superior efficacy and comparable safety versus the first-generation TKI imatinib in patients with newly diagnosed Philadelphia chromosome–positive acute lymphoblastic leukemia (PH+ALL).

The agents were evaluated in the randomized, open-label, phase 3 PhALLCON study, the first head-to-head comparison of ponatinib and imatinib in combination with reduced-intensity chemotherapy in the Ph+ALL population.

Overall, patients in the ponatinib arm experienced a significantly higher minimal residual disease (MRD)–negative complete response rate as well as deeper and more durable responses compared with those in the imatinib arm, the investigators reported.

The findings were presented during an American Society of Clinical Oncology virtual plenary session.

In adults with ALL, Ph+ disease is the most frequent genetic subtype, accounting for about one third of cases. The current standard of care for newly diagnosed Ph+ALL, also known as BCR-ABL-1–positive ALL, is BCR-ABL1 TKIs in combination with chemotherapy or steroids. However, when treated with first- or second-generation TKIs, patients eventually progress due to the emergence of treatment resistance.

Before the advent of TKI therapies, Ph+ALL had a very poor prognosis, but the development of imatinib in 2001 was transformative, said Marlise R. Luskin, MD, a senior physician at Dana-Farber Cancer Institute, Boston, in the ASCO plenary session, exploring the state of the science.

Added to “backbone” chemotherapy regimens, imatinib improved complete response rates, increased eligibility for stem cell transplantation, and improved overall survival. Second-generation TKIs, including dasatinib and nilotinib further improved outcomes, said Dr. Luskin, also assistant professor at Harvard Medical School, Boston.

More recently, ponatinib has emerged as a promising treatment given its unique action against the ABLA1 T315I KD mutation present in about 75% of cases that relapse as well as the findings of improved MRD-negative complete response rates and event-free survival in retrospective studies, Dr. Luskin said.

The PhALLCON study was designed to further investigate promising results seen in retrospective studies of ponatinib.

To assess ponatinib versus imatinib, patients were enrolled and randomized two to one to receive either a 30-mg once-daily starting dose of ponatinib or a once-daily 600 mg dose of imatinib plus reduced-intensity chemotherapy. After cycle 20, patients received single agent ponatinib or imatinib until disease progression or unacceptable toxicity.

Of the 245 enrolled, 78 remained on treatment at the August 2022 data cutoff, including 42% of those in the ponatinib arm and 12% in the imatinib arm. The most common reasons for discontinuation included hematopoietic stem cell transplantation (31% for ponatinib and 37% for imatinib), adverse events (12% in both arms), and lack of efficacy (7% and 26%, respectively).

At median follow-up of 20 months among 164 patients in the ponatinib arm and 18 months among 81 patients in the imatinib arm, the MRD-negative complete response rates were 34.4% and 16.7%, respectively, said first author Elias J. Jabbour, MD, a professor of medicine at the University of Texas MD Anderson Cancer Center, Houston.

A trend toward improved event-free survival was also observed in the ponatinib arm, but the data were not mature at the time of the analysis, Dr. Jabbour noted.

The two treatments showed comparable safety. Treatment-emergent adverse event rates of any grade and of grade 3 or higher were similar in the two study arms. Arterial occlusive events were infrequent and were also similar between the arms.

“Taken together, for this patient population, the efficacy and safety results demonstrate a favorable risk-benefit assessment for ponatinib, which should be considered a standard of care for frontline therapy in patents with newly diagnosed Ph+ALL,” Dr. Jabbour said.

Although the PhALLCON findings are encouraging, invited discussant Anjali S. Advani, MD, of the Cleveland Clinic, noted some study “pitfalls and caveats,” including the generally younger age and low incidence of cardiovascular risk factors in the study population, which raises questions about the ability to extrapolate the findings to “the larger population, which may be older and have more comorbidities.”

Dr. Advani also said that the ponatinib versus imatinib comparison is a reasonable one, but that most clinicians are now using dasatinib, so “it would have been nice to have this comparison.”

Additionally, “the landscape is now changing with the use of blinatumomab plus TKIs – either dasatinib or ponatinib – in the up-front setting.”

“There is data now from various groups ... showing excellent results, although longer follow-up is needed on all of these,” she said.

One such study is the GIMEMA ALL2820 trial looking at ponatinib plus blinatumomab versus imatinib plus chemotherapy, said Nicolas Boissel, MD, PhD, of Hôpital Saint-Louis in Paris, an invited discussant who addressed the European perspective on the PhALLCON results.

“It is expected that access to ponatinib will be delayed in Europe, compared with the U.S., so meanwhile, clinical trials remain a good option to give access to ponatinib frontline,” he said.

Going forward, Dr. Boissel said it will be important to determine the role of second-generation TKIs in patients who are ineligible to receive ponatinib, the treatment duration needed to reduce long-term risk of relapse, and the potential for eliminating the need for postremission chemotherapy and stem cell transplantation in certain patients.

Dr. Advani added that when evaluating and comparing treatments, it will be important to look at genomic alterations and BCR-ABL mutation status, age and comorbidities, and patterns of disease relapse, including relapse sites and genomics. Longer follow-up results for event-free survival and overall survival are also needed.

“I think, particularly in younger patients with relatively few or no cardiovascular comorbidities, [ponatinib plus reduced-intensity chemotherapy] represents a really exciting option,” Dr. Advani said. “What’s difficult is that the landscape is changing quickly in this field, and so is the standard of care. I think what we struggle with is whether we should be using antibody-based therapies plus TKIs or look at an approach such as this, and further studies are going to be needed to answer that question.”

Dr. Jabbour disclosed ties with Pfizer, Takeda, Amgen, AbbVie, Bristol-Myers Squibb, Incyte, Adaptive Biotechnologies, Astellas Pharma, Genentech, and Ascentage Pharma. Dr. Luskin reported relationships with Pfizer, Novartis, and Abbvie. Dr. Advani disclosed ties with Novartis, Glycomimetics, Kite Pharma, Seattle Genetics, Amgen, Beam Therapeutics, Mkarta, Taiho Oncology, Jazz Pharmaceuticals, Pfizer, and Kura Oncology. Dr. Boissel reported relationships with Amgen, ARIAD/Incyte, Novartis, SERVIER, and Astellas Pharma.

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

Ponatinib, a potent third-generation tyrosine kinase inhibitor (TKI), showed superior efficacy and comparable safety versus the first-generation TKI imatinib in patients with newly diagnosed Philadelphia chromosome–positive acute lymphoblastic leukemia (PH+ALL).

The agents were evaluated in the randomized, open-label, phase 3 PhALLCON study, the first head-to-head comparison of ponatinib and imatinib in combination with reduced-intensity chemotherapy in the Ph+ALL population.

Overall, patients in the ponatinib arm experienced a significantly higher minimal residual disease (MRD)–negative complete response rate as well as deeper and more durable responses compared with those in the imatinib arm, the investigators reported.

The findings were presented during an American Society of Clinical Oncology virtual plenary session.

In adults with ALL, Ph+ disease is the most frequent genetic subtype, accounting for about one third of cases. The current standard of care for newly diagnosed Ph+ALL, also known as BCR-ABL-1–positive ALL, is BCR-ABL1 TKIs in combination with chemotherapy or steroids. However, when treated with first- or second-generation TKIs, patients eventually progress due to the emergence of treatment resistance.

Before the advent of TKI therapies, Ph+ALL had a very poor prognosis, but the development of imatinib in 2001 was transformative, said Marlise R. Luskin, MD, a senior physician at Dana-Farber Cancer Institute, Boston, in the ASCO plenary session, exploring the state of the science.

Added to “backbone” chemotherapy regimens, imatinib improved complete response rates, increased eligibility for stem cell transplantation, and improved overall survival. Second-generation TKIs, including dasatinib and nilotinib further improved outcomes, said Dr. Luskin, also assistant professor at Harvard Medical School, Boston.

More recently, ponatinib has emerged as a promising treatment given its unique action against the ABLA1 T315I KD mutation present in about 75% of cases that relapse as well as the findings of improved MRD-negative complete response rates and event-free survival in retrospective studies, Dr. Luskin said.

The PhALLCON study was designed to further investigate promising results seen in retrospective studies of ponatinib.

To assess ponatinib versus imatinib, patients were enrolled and randomized two to one to receive either a 30-mg once-daily starting dose of ponatinib or a once-daily 600 mg dose of imatinib plus reduced-intensity chemotherapy. After cycle 20, patients received single agent ponatinib or imatinib until disease progression or unacceptable toxicity.

Of the 245 enrolled, 78 remained on treatment at the August 2022 data cutoff, including 42% of those in the ponatinib arm and 12% in the imatinib arm. The most common reasons for discontinuation included hematopoietic stem cell transplantation (31% for ponatinib and 37% for imatinib), adverse events (12% in both arms), and lack of efficacy (7% and 26%, respectively).

At median follow-up of 20 months among 164 patients in the ponatinib arm and 18 months among 81 patients in the imatinib arm, the MRD-negative complete response rates were 34.4% and 16.7%, respectively, said first author Elias J. Jabbour, MD, a professor of medicine at the University of Texas MD Anderson Cancer Center, Houston.

A trend toward improved event-free survival was also observed in the ponatinib arm, but the data were not mature at the time of the analysis, Dr. Jabbour noted.

The two treatments showed comparable safety. Treatment-emergent adverse event rates of any grade and of grade 3 or higher were similar in the two study arms. Arterial occlusive events were infrequent and were also similar between the arms.

“Taken together, for this patient population, the efficacy and safety results demonstrate a favorable risk-benefit assessment for ponatinib, which should be considered a standard of care for frontline therapy in patents with newly diagnosed Ph+ALL,” Dr. Jabbour said.

Although the PhALLCON findings are encouraging, invited discussant Anjali S. Advani, MD, of the Cleveland Clinic, noted some study “pitfalls and caveats,” including the generally younger age and low incidence of cardiovascular risk factors in the study population, which raises questions about the ability to extrapolate the findings to “the larger population, which may be older and have more comorbidities.”

Dr. Advani also said that the ponatinib versus imatinib comparison is a reasonable one, but that most clinicians are now using dasatinib, so “it would have been nice to have this comparison.”

Additionally, “the landscape is now changing with the use of blinatumomab plus TKIs – either dasatinib or ponatinib – in the up-front setting.”

“There is data now from various groups ... showing excellent results, although longer follow-up is needed on all of these,” she said.

One such study is the GIMEMA ALL2820 trial looking at ponatinib plus blinatumomab versus imatinib plus chemotherapy, said Nicolas Boissel, MD, PhD, of Hôpital Saint-Louis in Paris, an invited discussant who addressed the European perspective on the PhALLCON results.

“It is expected that access to ponatinib will be delayed in Europe, compared with the U.S., so meanwhile, clinical trials remain a good option to give access to ponatinib frontline,” he said.

Going forward, Dr. Boissel said it will be important to determine the role of second-generation TKIs in patients who are ineligible to receive ponatinib, the treatment duration needed to reduce long-term risk of relapse, and the potential for eliminating the need for postremission chemotherapy and stem cell transplantation in certain patients.

Dr. Advani added that when evaluating and comparing treatments, it will be important to look at genomic alterations and BCR-ABL mutation status, age and comorbidities, and patterns of disease relapse, including relapse sites and genomics. Longer follow-up results for event-free survival and overall survival are also needed.

“I think, particularly in younger patients with relatively few or no cardiovascular comorbidities, [ponatinib plus reduced-intensity chemotherapy] represents a really exciting option,” Dr. Advani said. “What’s difficult is that the landscape is changing quickly in this field, and so is the standard of care. I think what we struggle with is whether we should be using antibody-based therapies plus TKIs or look at an approach such as this, and further studies are going to be needed to answer that question.”

Dr. Jabbour disclosed ties with Pfizer, Takeda, Amgen, AbbVie, Bristol-Myers Squibb, Incyte, Adaptive Biotechnologies, Astellas Pharma, Genentech, and Ascentage Pharma. Dr. Luskin reported relationships with Pfizer, Novartis, and Abbvie. Dr. Advani disclosed ties with Novartis, Glycomimetics, Kite Pharma, Seattle Genetics, Amgen, Beam Therapeutics, Mkarta, Taiho Oncology, Jazz Pharmaceuticals, Pfizer, and Kura Oncology. Dr. Boissel reported relationships with Amgen, ARIAD/Incyte, Novartis, SERVIER, and Astellas Pharma.

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

Sales of a best-selling health book by a high-profile University of Southern California, Los Angeles, oncologist have been suspended because of dozens of instances of plagiarism.

The Los Angeles Times reported earlier this week that it identified at least 95 instances of plagiarism by author David B. Agus, MD, in “The Book of Animal Secrets: Nature’s Lessons for a Long and Happy Life.”

According to the LA Times, Dr. Agus copied passages from numerous sources, including The New York Times, National Geographic, Wikipedia, and smaller niche sites. Some instances involved a sentence or two; others involved multiparagraph, word-for-word copying without attribution.

The book by Dr. Agus – who interviews celebrities for a health-related miniseries on Paramount Plus – had reached the top spot on Amazon’s list of best-selling books about animals a week before its planned March 7 release.

Publisher Simon & Schuster released a statement announcing a recall of the book at Dr. Agus’ expense “until a fully revised and corrected edition can be released.”

Dr. Agus included his own statement apologizing “to the scientists and writers whose work or words were used or not fully attributed,” and said he will “rewrite the passages in question with new language, will provide proper and full attribution, and when ready will announce a new publication date.”

“Writers should always be credited for their work, and I deeply regret these mistakes and the lack of rigor in finalizing the book,” he stated, adding that “[t]his book contains important lessons, messages, and guidance about health that I wanted to convey to the readers. I do not want these mistakes to interfere with that effort.”
 

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

Sales of a best-selling health book by a high-profile University of Southern California, Los Angeles, oncologist have been suspended because of dozens of instances of plagiarism.

The Los Angeles Times reported earlier this week that it identified at least 95 instances of plagiarism by author David B. Agus, MD, in “The Book of Animal Secrets: Nature’s Lessons for a Long and Happy Life.”

According to the LA Times, Dr. Agus copied passages from numerous sources, including The New York Times, National Geographic, Wikipedia, and smaller niche sites. Some instances involved a sentence or two; others involved multiparagraph, word-for-word copying without attribution.

The book by Dr. Agus – who interviews celebrities for a health-related miniseries on Paramount Plus – had reached the top spot on Amazon’s list of best-selling books about animals a week before its planned March 7 release.

Publisher Simon & Schuster released a statement announcing a recall of the book at Dr. Agus’ expense “until a fully revised and corrected edition can be released.”

Dr. Agus included his own statement apologizing “to the scientists and writers whose work or words were used or not fully attributed,” and said he will “rewrite the passages in question with new language, will provide proper and full attribution, and when ready will announce a new publication date.”

“Writers should always be credited for their work, and I deeply regret these mistakes and the lack of rigor in finalizing the book,” he stated, adding that “[t]his book contains important lessons, messages, and guidance about health that I wanted to convey to the readers. I do not want these mistakes to interfere with that effort.”
 

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

Sales of a best-selling health book by a high-profile University of Southern California, Los Angeles, oncologist have been suspended because of dozens of instances of plagiarism.

The Los Angeles Times reported earlier this week that it identified at least 95 instances of plagiarism by author David B. Agus, MD, in “The Book of Animal Secrets: Nature’s Lessons for a Long and Happy Life.”

According to the LA Times, Dr. Agus copied passages from numerous sources, including The New York Times, National Geographic, Wikipedia, and smaller niche sites. Some instances involved a sentence or two; others involved multiparagraph, word-for-word copying without attribution.

The book by Dr. Agus – who interviews celebrities for a health-related miniseries on Paramount Plus – had reached the top spot on Amazon’s list of best-selling books about animals a week before its planned March 7 release.

Publisher Simon & Schuster released a statement announcing a recall of the book at Dr. Agus’ expense “until a fully revised and corrected edition can be released.”

Dr. Agus included his own statement apologizing “to the scientists and writers whose work or words were used or not fully attributed,” and said he will “rewrite the passages in question with new language, will provide proper and full attribution, and when ready will announce a new publication date.”

“Writers should always be credited for their work, and I deeply regret these mistakes and the lack of rigor in finalizing the book,” he stated, adding that “[t]his book contains important lessons, messages, and guidance about health that I wanted to convey to the readers. I do not want these mistakes to interfere with that effort.”
 

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