Non-Hodgkin Lymphoma

Photo by Aaron Logan

Researchers say they have developed a new approach to model human immune variation that overcomes the limitations of traditional mouse models.

With this approach, the team identified genetic markers that directly correlate with the outcome of inflammatory and malignant diseases in humans, including chronic lymphocytic leukemia and Burkitt lymphoma.

The findings suggest that accounting for immune diversity is critical to the success of predicting disease outcomes based on immune cell measurements.

The team reported these findings in Nature Communications.

Traditionally, researchers have relied on inbred mouse strains to gain insight into human diseases while reducing experimental noise.

“If you take a black, a brown, or a white mouse, each one will give you a different answer in the same assay,” said Klaus Ley, MD, of La Jolla Institute for Allergy and Immunology in California.

“For example, if you vaccinate them, their responses will be different, which creates a lot of experimental noise. However, when you think about patients, or even healthy people, we are all different.”

To mine those differences for information, the researchers embraced the experimental noise. Instead of analyzing a single inbred mouse strain, they turned to the hybrid mouse diversity panel (HDMP).

The HDMP is a panel of about 100 different inbred mouse strains that mirror the breadth of genetic and immunological diversity found in the human population.

The researchers studied the natural variation in the activation pattern of abdominal macrophages. Macrophages isolated from 83 different mouse strains from the HDMP were exposed to lipopolysaccharide (LPS), a major component of the outer wall of gram-negative bacteria.

“Fundamentally, when the immune system is confronted with gram-negative bacteria, it can deal with the situation in 2 ways—either it gets very angry and tries to kill the bacteria or it can wall them off in an attempt to live with it,” explained Dr Ley. “Both strategies carry a certain risk, but a long evolutionary history has ensured that mice and people can survive with either strategy.”

The LPS-induced reactions of the macrophages covered the whole spectrum—from very aggressive (LPS+) to very tolerant (LPS-), depending on the mouse strain.

Next, the researchers asked which genes were active during each type of response to identify gene signatures that correlated with LPS responsiveness.

The team then ran these gene signatures across various human gene expression data sets and discovered they strongly correlated with human disease outcomes.

For example, macrophages isolated from healthy joints were enriched in LPS-tolerant genes, whereas macrophages from rheumatoid arthritis patients were strongly skewed toward LPS-aggressive.

Since it was known that mice and people with the aggressive phenotype are better at fighting cancer, the researchers specifically asked whether the level of LPS responsiveness could predict tumor survival.

After analyzing data from 18,000 biopsies across 39 different tumor types, the team found the LPS+ gene signature strongly correlated with survival, while the LPS- signature correlated with cancer death.

The pattern was significant across many types of cancer, including chronic lymphocytic leukemia, Burkitt lymphoma, osteosarcoma, melanoma, and large-cell lung carcinoma.

Photo by Aaron Logan

Researchers say they have developed a new approach to model human immune variation that overcomes the limitations of traditional mouse models.

With this approach, the team identified genetic markers that directly correlate with the outcome of inflammatory and malignant diseases in humans, including chronic lymphocytic leukemia and Burkitt lymphoma.

The findings suggest that accounting for immune diversity is critical to the success of predicting disease outcomes based on immune cell measurements.

The team reported these findings in Nature Communications.

Traditionally, researchers have relied on inbred mouse strains to gain insight into human diseases while reducing experimental noise.

“If you take a black, a brown, or a white mouse, each one will give you a different answer in the same assay,” said Klaus Ley, MD, of La Jolla Institute for Allergy and Immunology in California.

“For example, if you vaccinate them, their responses will be different, which creates a lot of experimental noise. However, when you think about patients, or even healthy people, we are all different.”

To mine those differences for information, the researchers embraced the experimental noise. Instead of analyzing a single inbred mouse strain, they turned to the hybrid mouse diversity panel (HDMP).

The HDMP is a panel of about 100 different inbred mouse strains that mirror the breadth of genetic and immunological diversity found in the human population.

The researchers studied the natural variation in the activation pattern of abdominal macrophages. Macrophages isolated from 83 different mouse strains from the HDMP were exposed to lipopolysaccharide (LPS), a major component of the outer wall of gram-negative bacteria.

“Fundamentally, when the immune system is confronted with gram-negative bacteria, it can deal with the situation in 2 ways—either it gets very angry and tries to kill the bacteria or it can wall them off in an attempt to live with it,” explained Dr Ley. “Both strategies carry a certain risk, but a long evolutionary history has ensured that mice and people can survive with either strategy.”

The LPS-induced reactions of the macrophages covered the whole spectrum—from very aggressive (LPS+) to very tolerant (LPS-), depending on the mouse strain.

Next, the researchers asked which genes were active during each type of response to identify gene signatures that correlated with LPS responsiveness.

The team then ran these gene signatures across various human gene expression data sets and discovered they strongly correlated with human disease outcomes.

For example, macrophages isolated from healthy joints were enriched in LPS-tolerant genes, whereas macrophages from rheumatoid arthritis patients were strongly skewed toward LPS-aggressive.

Since it was known that mice and people with the aggressive phenotype are better at fighting cancer, the researchers specifically asked whether the level of LPS responsiveness could predict tumor survival.

After analyzing data from 18,000 biopsies across 39 different tumor types, the team found the LPS+ gene signature strongly correlated with survival, while the LPS- signature correlated with cancer death.

The pattern was significant across many types of cancer, including chronic lymphocytic leukemia, Burkitt lymphoma, osteosarcoma, melanoma, and large-cell lung carcinoma.

Photo by Aaron Logan

Researchers say they have developed a new approach to model human immune variation that overcomes the limitations of traditional mouse models.

With this approach, the team identified genetic markers that directly correlate with the outcome of inflammatory and malignant diseases in humans, including chronic lymphocytic leukemia and Burkitt lymphoma.

The findings suggest that accounting for immune diversity is critical to the success of predicting disease outcomes based on immune cell measurements.

The team reported these findings in Nature Communications.

Traditionally, researchers have relied on inbred mouse strains to gain insight into human diseases while reducing experimental noise.

“If you take a black, a brown, or a white mouse, each one will give you a different answer in the same assay,” said Klaus Ley, MD, of La Jolla Institute for Allergy and Immunology in California.

“For example, if you vaccinate them, their responses will be different, which creates a lot of experimental noise. However, when you think about patients, or even healthy people, we are all different.”

To mine those differences for information, the researchers embraced the experimental noise. Instead of analyzing a single inbred mouse strain, they turned to the hybrid mouse diversity panel (HDMP).

The HDMP is a panel of about 100 different inbred mouse strains that mirror the breadth of genetic and immunological diversity found in the human population.

The researchers studied the natural variation in the activation pattern of abdominal macrophages. Macrophages isolated from 83 different mouse strains from the HDMP were exposed to lipopolysaccharide (LPS), a major component of the outer wall of gram-negative bacteria.

“Fundamentally, when the immune system is confronted with gram-negative bacteria, it can deal with the situation in 2 ways—either it gets very angry and tries to kill the bacteria or it can wall them off in an attempt to live with it,” explained Dr Ley. “Both strategies carry a certain risk, but a long evolutionary history has ensured that mice and people can survive with either strategy.”

The LPS-induced reactions of the macrophages covered the whole spectrum—from very aggressive (LPS+) to very tolerant (LPS-), depending on the mouse strain.

Next, the researchers asked which genes were active during each type of response to identify gene signatures that correlated with LPS responsiveness.

The team then ran these gene signatures across various human gene expression data sets and discovered they strongly correlated with human disease outcomes.

For example, macrophages isolated from healthy joints were enriched in LPS-tolerant genes, whereas macrophages from rheumatoid arthritis patients were strongly skewed toward LPS-aggressive.

Since it was known that mice and people with the aggressive phenotype are better at fighting cancer, the researchers specifically asked whether the level of LPS responsiveness could predict tumor survival.

After analyzing data from 18,000 biopsies across 39 different tumor types, the team found the LPS+ gene signature strongly correlated with survival, while the LPS- signature correlated with cancer death.

The pattern was significant across many types of cancer, including chronic lymphocytic leukemia, Burkitt lymphoma, osteosarcoma, melanoma, and large-cell lung carcinoma.

Micrograph showing CLL

LUGANO, SWITZERLAND—A sequential treatment regimen can produce a high overall response rate (ORR) in patients with treatment-naïve (TN) or relapsed/refractory (RR) chronic lymphocytic leukemia (CLL), results of the CLL2-BAG study suggest.

Patients who received bendamustine followed by obinutuzumab and venetoclax achieved an ORR of 95%, and 87% of them were negative for minimal residual disease (MRD) in the peripheral blood.

In addition, this regimen did not lead to cumulative or unexpected toxicity, according to study investigator Paula Cramer, MD, of University Hospital of Cologne in Germany.

Dr Cramer presented results from CLL2-BAG at the 14th International Conference on Malignant Lymphoma (ICML). The trial was sponsored by the German CLL Study Group.

CLL2-BAG included 63 patients—34 with TN and 29 with RR CLL. The median age was 58 (range, 43-76) and 61 (range, 28-77), respectively.

Thirty-five percent of TN patients had bulky disease (>5 cm), as did 45% of RR patients. Twelve percent and 10%, respectively, had massive splenomegaly (>20 cm)

Twenty-one percent of TN patients and 35% of RR patients were Binet stage A. Thirty-two percent and 21%, respectively, were stage B, and 47% and 45%, respectively, were stage C.

Treatment

Patients first underwent debulking with bendamustine, given at 70 mg/m² on days 1 and 2 for two 28-day cycles. They then received induction with obinutuzumab and venetoclax for six 28-day cycles.

In cycle 1, patients received obinutuzumab at 100 mg or 900 mg on day 1 or 2 and 1000 mg on days 8 and 15. For cycles 2-6, patients received 1000 mg of obinutuzumab on day 1.

In cycle 2, patients received venetoclax at 20 mg on days 1-7, 50 mg on days 8-14, 100 mg on days 15-21, and 200 mg on days 22-28. For cycles 3-6, they received venetoclax at 400 mg on days 1-28.

Patients also received maintenance with obinutuzumab and venetoclax for 2 to 8 cycles with a duration of 84 days. Obinutuzumab was given at 1000 mg on day 1 of each cycle, and venetoclax was given at 400 mg on days 1-84.

Maintenance was continued until patients completed 24 months of maintenance therapy, until 3 months after patients achieved a complete response (CR) or CR with incomplete count recovery (CRi) and MRD negativity, until progression of CLL or start of new CLL treatment, or until unacceptable toxicity.

ORR, MRD, and survival

At the end of induction, the ORR was 95% in the entire population—100% among TN patients and 90% among RR patients.

The rate of CR was 8%, 9%, and 7%, respectively. The rate of unconfirmed/clinical CR/CRi was 32%, 41%, and 21%, respectively.

Five percent of patients progressed, all of them in the RR group.

Eighty-seven percent of evaluable patients were MRD negative (<10^-4) in the peripheral blood, including 91% of TN patients and 83% of RR patients. Two patients (3%) were missing data on MRD status in peripheral blood.

Thirteen percent of all evaluable patients were MRD negative in the bone marrow, including 12% of TN patients and 14% of RR patients. The remaining patients (87%, 88%, and 86%, respectively) were missing data on MRD status in the bone marrow.

The progression-free survival at 15 months was 100% in the TN patients and 83% in the RR patients.

Adverse events

After debulking, 28.1% of TN patients and 46.7% of RR patients had experienced adverse events (AEs).

These included (in TN and RR patients, respectively) neutropenia (9.4% and 13.3%), anemia (6.3% and 20.0%), thrombocytopenia (6.3% and 6.7%), infections (6.3% and 6.7%), coronary artery disorders (1 TN patient, 3.1%), rash (1 TN patient, 3.1%), tumor lysis syndrome (1 TN patient, 3.1%), vomiting (1 TN patient, 3.1%), and pyrexia (1 RR patient, 6.7%).

After induction, 54.3% of TN patients and 80.6% of RR patients had experienced AEs.

These included (in TN and RR patients, respectively) neutropenia (34.3% and 54.8%), infections (8.6% and 29.0%), thrombocytopenia (2.9% and 22.6%), infusion-related reactions (5 RR patients, 16.1%), neoplasms (2.9% and 9.7%), hypertension (2.9% and 6.5%), coronary artery disorders (2.9% and 6.5%), anemia (3 RR patients, 9.7%), and tumor lysis syndrome (2 RR patients, 6.5%).

Micrograph showing CLL

LUGANO, SWITZERLAND—A sequential treatment regimen can produce a high overall response rate (ORR) in patients with treatment-naïve (TN) or relapsed/refractory (RR) chronic lymphocytic leukemia (CLL), results of the CLL2-BAG study suggest.

Patients who received bendamustine followed by obinutuzumab and venetoclax achieved an ORR of 95%, and 87% of them were negative for minimal residual disease (MRD) in the peripheral blood.

In addition, this regimen did not lead to cumulative or unexpected toxicity, according to study investigator Paula Cramer, MD, of University Hospital of Cologne in Germany.

Dr Cramer presented results from CLL2-BAG at the 14th International Conference on Malignant Lymphoma (ICML). The trial was sponsored by the German CLL Study Group.

CLL2-BAG included 63 patients—34 with TN and 29 with RR CLL. The median age was 58 (range, 43-76) and 61 (range, 28-77), respectively.

Thirty-five percent of TN patients had bulky disease (>5 cm), as did 45% of RR patients. Twelve percent and 10%, respectively, had massive splenomegaly (>20 cm)

Twenty-one percent of TN patients and 35% of RR patients were Binet stage A. Thirty-two percent and 21%, respectively, were stage B, and 47% and 45%, respectively, were stage C.

Treatment

Patients first underwent debulking with bendamustine, given at 70 mg/m² on days 1 and 2 for two 28-day cycles. They then received induction with obinutuzumab and venetoclax for six 28-day cycles.

In cycle 1, patients received obinutuzumab at 100 mg or 900 mg on day 1 or 2 and 1000 mg on days 8 and 15. For cycles 2-6, patients received 1000 mg of obinutuzumab on day 1.

In cycle 2, patients received venetoclax at 20 mg on days 1-7, 50 mg on days 8-14, 100 mg on days 15-21, and 200 mg on days 22-28. For cycles 3-6, they received venetoclax at 400 mg on days 1-28.

Patients also received maintenance with obinutuzumab and venetoclax for 2 to 8 cycles with a duration of 84 days. Obinutuzumab was given at 1000 mg on day 1 of each cycle, and venetoclax was given at 400 mg on days 1-84.

Maintenance was continued until patients completed 24 months of maintenance therapy, until 3 months after patients achieved a complete response (CR) or CR with incomplete count recovery (CRi) and MRD negativity, until progression of CLL or start of new CLL treatment, or until unacceptable toxicity.

ORR, MRD, and survival

At the end of induction, the ORR was 95% in the entire population—100% among TN patients and 90% among RR patients.

The rate of CR was 8%, 9%, and 7%, respectively. The rate of unconfirmed/clinical CR/CRi was 32%, 41%, and 21%, respectively.

Five percent of patients progressed, all of them in the RR group.

Eighty-seven percent of evaluable patients were MRD negative (<10^-4) in the peripheral blood, including 91% of TN patients and 83% of RR patients. Two patients (3%) were missing data on MRD status in peripheral blood.

Thirteen percent of all evaluable patients were MRD negative in the bone marrow, including 12% of TN patients and 14% of RR patients. The remaining patients (87%, 88%, and 86%, respectively) were missing data on MRD status in the bone marrow.

The progression-free survival at 15 months was 100% in the TN patients and 83% in the RR patients.

Adverse events

After debulking, 28.1% of TN patients and 46.7% of RR patients had experienced adverse events (AEs).

These included (in TN and RR patients, respectively) neutropenia (9.4% and 13.3%), anemia (6.3% and 20.0%), thrombocytopenia (6.3% and 6.7%), infections (6.3% and 6.7%), coronary artery disorders (1 TN patient, 3.1%), rash (1 TN patient, 3.1%), tumor lysis syndrome (1 TN patient, 3.1%), vomiting (1 TN patient, 3.1%), and pyrexia (1 RR patient, 6.7%).

After induction, 54.3% of TN patients and 80.6% of RR patients had experienced AEs.

These included (in TN and RR patients, respectively) neutropenia (34.3% and 54.8%), infections (8.6% and 29.0%), thrombocytopenia (2.9% and 22.6%), infusion-related reactions (5 RR patients, 16.1%), neoplasms (2.9% and 9.7%), hypertension (2.9% and 6.5%), coronary artery disorders (2.9% and 6.5%), anemia (3 RR patients, 9.7%), and tumor lysis syndrome (2 RR patients, 6.5%).

Micrograph showing CLL

LUGANO, SWITZERLAND—A sequential treatment regimen can produce a high overall response rate (ORR) in patients with treatment-naïve (TN) or relapsed/refractory (RR) chronic lymphocytic leukemia (CLL), results of the CLL2-BAG study suggest.

Patients who received bendamustine followed by obinutuzumab and venetoclax achieved an ORR of 95%, and 87% of them were negative for minimal residual disease (MRD) in the peripheral blood.

In addition, this regimen did not lead to cumulative or unexpected toxicity, according to study investigator Paula Cramer, MD, of University Hospital of Cologne in Germany.

Dr Cramer presented results from CLL2-BAG at the 14th International Conference on Malignant Lymphoma (ICML). The trial was sponsored by the German CLL Study Group.

CLL2-BAG included 63 patients—34 with TN and 29 with RR CLL. The median age was 58 (range, 43-76) and 61 (range, 28-77), respectively.

Thirty-five percent of TN patients had bulky disease (>5 cm), as did 45% of RR patients. Twelve percent and 10%, respectively, had massive splenomegaly (>20 cm)

Twenty-one percent of TN patients and 35% of RR patients were Binet stage A. Thirty-two percent and 21%, respectively, were stage B, and 47% and 45%, respectively, were stage C.

Treatment

Patients first underwent debulking with bendamustine, given at 70 mg/m² on days 1 and 2 for two 28-day cycles. They then received induction with obinutuzumab and venetoclax for six 28-day cycles.

In cycle 1, patients received obinutuzumab at 100 mg or 900 mg on day 1 or 2 and 1000 mg on days 8 and 15. For cycles 2-6, patients received 1000 mg of obinutuzumab on day 1.

In cycle 2, patients received venetoclax at 20 mg on days 1-7, 50 mg on days 8-14, 100 mg on days 15-21, and 200 mg on days 22-28. For cycles 3-6, they received venetoclax at 400 mg on days 1-28.

Patients also received maintenance with obinutuzumab and venetoclax for 2 to 8 cycles with a duration of 84 days. Obinutuzumab was given at 1000 mg on day 1 of each cycle, and venetoclax was given at 400 mg on days 1-84.

Maintenance was continued until patients completed 24 months of maintenance therapy, until 3 months after patients achieved a complete response (CR) or CR with incomplete count recovery (CRi) and MRD negativity, until progression of CLL or start of new CLL treatment, or until unacceptable toxicity.

ORR, MRD, and survival

At the end of induction, the ORR was 95% in the entire population—100% among TN patients and 90% among RR patients.

The rate of CR was 8%, 9%, and 7%, respectively. The rate of unconfirmed/clinical CR/CRi was 32%, 41%, and 21%, respectively.

Five percent of patients progressed, all of them in the RR group.

Eighty-seven percent of evaluable patients were MRD negative (<10^-4) in the peripheral blood, including 91% of TN patients and 83% of RR patients. Two patients (3%) were missing data on MRD status in peripheral blood.

Thirteen percent of all evaluable patients were MRD negative in the bone marrow, including 12% of TN patients and 14% of RR patients. The remaining patients (87%, 88%, and 86%, respectively) were missing data on MRD status in the bone marrow.

The progression-free survival at 15 months was 100% in the TN patients and 83% in the RR patients.

Adverse events

After debulking, 28.1% of TN patients and 46.7% of RR patients had experienced adverse events (AEs).

These included (in TN and RR patients, respectively) neutropenia (9.4% and 13.3%), anemia (6.3% and 20.0%), thrombocytopenia (6.3% and 6.7%), infections (6.3% and 6.7%), coronary artery disorders (1 TN patient, 3.1%), rash (1 TN patient, 3.1%), tumor lysis syndrome (1 TN patient, 3.1%), vomiting (1 TN patient, 3.1%), and pyrexia (1 RR patient, 6.7%).

After induction, 54.3% of TN patients and 80.6% of RR patients had experienced AEs.

These included (in TN and RR patients, respectively) neutropenia (34.3% and 54.8%), infections (8.6% and 29.0%), thrombocytopenia (2.9% and 22.6%), infusion-related reactions (5 RR patients, 16.1%), neoplasms (2.9% and 9.7%), hypertension (2.9% and 6.5%), coronary artery disorders (2.9% and 6.5%), anemia (3 RR patients, 9.7%), and tumor lysis syndrome (2 RR patients, 6.5%).

Micrograph showing FL

The European Medicines Agency’s Committee for Medicinal Products for Human Use (CHMP) has recommended expanding the marketing authorization for obinutuzumab (Gazyvaro).

The new proposed indication is for obinutuzumab in combination with chemotherapy for patients with previously untreated, advanced follicular lymphoma (FL). This would be followed by obinutuzumab maintenance in patients who achieved a response.

The European Commission typically adheres to the CHMP’s recommendations and delivers its final decision within 2 to 3 months’ of the CHMP’s recommendation.

The decision will be applicable to all member states of the European Union, plus Iceland, Liechtenstein, and Norway.

If approved for this new indication, obinutuzumab will be authorized for use in the European Economic Area as follows:

• In combination with chlorambucil for the treatment of adults with previously untreated chronic lymphocytic leukemia and comorbidities making them unsuitable for full-dose fludarabine-based therapy.
• In combination with bendamustine, followed by obinutuzumab maintenance, for the treatment of patients with FL who did not respond to, or who progressed during or up to 6 months after, treatment with rituximab or a rituximab-containing regimen.
• In combination with chemotherapy, followed by obinutuzumab maintenance in responders, for the treatment of patients with previously untreated, advanced FL.

GALLIUM trial

The CHMP’s recommendation is based on results of the phase 3 GALLIUM trial, which were presented at the 2016 ASH Annual Meeting.

The study enrolled 1401 patients with previously untreated, indolent non-Hodgkin lymphoma, including 1202 with FL.

Half of the FL patients (n=601) were randomized to receive obinutuzumab plus chemotherapy (followed by obinutuzumab maintenance for up to 2 years), and half were randomized to rituximab plus chemotherapy (followed by rituximab maintenance for up to 2 years).

The different chemotherapies used were CHOP (cyclophosphamide, doxorubicin, vincristine, and prednisolone), CVP (cyclophosphamide, vincristine, and prednisolone), and bendamustine.

Patients who received obinutuzumab had significantly better progression-free survival than patients who received rituximab. The 3-year progression-free survival rate was 73.3% in the rituximab arm and 80% in the obinutuzumab arm (hazard ratio [HR]=0.66, P=0.0012).

There was no significant difference between the treatment arms with regard to overall survival. The 3-year overall survival was 92.1% in the rituximab arm and 94% in the obinutuzumab arm (HR=0.75, P=0.21).

The overall incidence of adverse events (AEs) was 98.3% in the rituximab arm and 99.5% in the obinutuzumab arm. The incidence of serious AEs was 39.9% and 46.1%, respectively.

The incidence of grade 3 or higher AEs was higher among patients who received obinutuzumab.

Grade 3 or higher AEs occurring in at least 5% of patients in either arm (rituximab and obinutuzumab, respectively) included neutropenia (67.8% and 74.6%), leukopenia (37.9% and 43.9%), febrile neutropenia (4.9% and 6.9%), infections and infestations (3.7% and 6.7%), and thrombocytopenia (2.7% and 6.1%).

Micrograph showing FL

The European Medicines Agency’s Committee for Medicinal Products for Human Use (CHMP) has recommended expanding the marketing authorization for obinutuzumab (Gazyvaro).

The new proposed indication is for obinutuzumab in combination with chemotherapy for patients with previously untreated, advanced follicular lymphoma (FL). This would be followed by obinutuzumab maintenance in patients who achieved a response.

The European Commission typically adheres to the CHMP’s recommendations and delivers its final decision within 2 to 3 months’ of the CHMP’s recommendation.

The decision will be applicable to all member states of the European Union, plus Iceland, Liechtenstein, and Norway.

If approved for this new indication, obinutuzumab will be authorized for use in the European Economic Area as follows:

• In combination with chlorambucil for the treatment of adults with previously untreated chronic lymphocytic leukemia and comorbidities making them unsuitable for full-dose fludarabine-based therapy.
• In combination with bendamustine, followed by obinutuzumab maintenance, for the treatment of patients with FL who did not respond to, or who progressed during or up to 6 months after, treatment with rituximab or a rituximab-containing regimen.
• In combination with chemotherapy, followed by obinutuzumab maintenance in responders, for the treatment of patients with previously untreated, advanced FL.

GALLIUM trial

The CHMP’s recommendation is based on results of the phase 3 GALLIUM trial, which were presented at the 2016 ASH Annual Meeting.

The study enrolled 1401 patients with previously untreated, indolent non-Hodgkin lymphoma, including 1202 with FL.

Half of the FL patients (n=601) were randomized to receive obinutuzumab plus chemotherapy (followed by obinutuzumab maintenance for up to 2 years), and half were randomized to rituximab plus chemotherapy (followed by rituximab maintenance for up to 2 years).

The different chemotherapies used were CHOP (cyclophosphamide, doxorubicin, vincristine, and prednisolone), CVP (cyclophosphamide, vincristine, and prednisolone), and bendamustine.

Patients who received obinutuzumab had significantly better progression-free survival than patients who received rituximab. The 3-year progression-free survival rate was 73.3% in the rituximab arm and 80% in the obinutuzumab arm (hazard ratio [HR]=0.66, P=0.0012).

There was no significant difference between the treatment arms with regard to overall survival. The 3-year overall survival was 92.1% in the rituximab arm and 94% in the obinutuzumab arm (HR=0.75, P=0.21).

The overall incidence of adverse events (AEs) was 98.3% in the rituximab arm and 99.5% in the obinutuzumab arm. The incidence of serious AEs was 39.9% and 46.1%, respectively.

The incidence of grade 3 or higher AEs was higher among patients who received obinutuzumab.

Grade 3 or higher AEs occurring in at least 5% of patients in either arm (rituximab and obinutuzumab, respectively) included neutropenia (67.8% and 74.6%), leukopenia (37.9% and 43.9%), febrile neutropenia (4.9% and 6.9%), infections and infestations (3.7% and 6.7%), and thrombocytopenia (2.7% and 6.1%).

Micrograph showing FL

The European Medicines Agency’s Committee for Medicinal Products for Human Use (CHMP) has recommended expanding the marketing authorization for obinutuzumab (Gazyvaro).

The new proposed indication is for obinutuzumab in combination with chemotherapy for patients with previously untreated, advanced follicular lymphoma (FL). This would be followed by obinutuzumab maintenance in patients who achieved a response.

The European Commission typically adheres to the CHMP’s recommendations and delivers its final decision within 2 to 3 months’ of the CHMP’s recommendation.

The decision will be applicable to all member states of the European Union, plus Iceland, Liechtenstein, and Norway.

If approved for this new indication, obinutuzumab will be authorized for use in the European Economic Area as follows:

• In combination with chlorambucil for the treatment of adults with previously untreated chronic lymphocytic leukemia and comorbidities making them unsuitable for full-dose fludarabine-based therapy.
• In combination with bendamustine, followed by obinutuzumab maintenance, for the treatment of patients with FL who did not respond to, or who progressed during or up to 6 months after, treatment with rituximab or a rituximab-containing regimen.
• In combination with chemotherapy, followed by obinutuzumab maintenance in responders, for the treatment of patients with previously untreated, advanced FL.

GALLIUM trial

The CHMP’s recommendation is based on results of the phase 3 GALLIUM trial, which were presented at the 2016 ASH Annual Meeting.

The study enrolled 1401 patients with previously untreated, indolent non-Hodgkin lymphoma, including 1202 with FL.

Half of the FL patients (n=601) were randomized to receive obinutuzumab plus chemotherapy (followed by obinutuzumab maintenance for up to 2 years), and half were randomized to rituximab plus chemotherapy (followed by rituximab maintenance for up to 2 years).

The different chemotherapies used were CHOP (cyclophosphamide, doxorubicin, vincristine, and prednisolone), CVP (cyclophosphamide, vincristine, and prednisolone), and bendamustine.

Patients who received obinutuzumab had significantly better progression-free survival than patients who received rituximab. The 3-year progression-free survival rate was 73.3% in the rituximab arm and 80% in the obinutuzumab arm (hazard ratio [HR]=0.66, P=0.0012).

There was no significant difference between the treatment arms with regard to overall survival. The 3-year overall survival was 92.1% in the rituximab arm and 94% in the obinutuzumab arm (HR=0.75, P=0.21).

The overall incidence of adverse events (AEs) was 98.3% in the rituximab arm and 99.5% in the obinutuzumab arm. The incidence of serious AEs was 39.9% and 46.1%, respectively.

The incidence of grade 3 or higher AEs was higher among patients who received obinutuzumab.

Grade 3 or higher AEs occurring in at least 5% of patients in either arm (rituximab and obinutuzumab, respectively) included neutropenia (67.8% and 74.6%), leukopenia (37.9% and 43.9%), febrile neutropenia (4.9% and 6.9%), infections and infestations (3.7% and 6.7%), and thrombocytopenia (2.7% and 6.1%).

Image by Joshua Stokes

Natural killer (NK) cells derived from cord blood (CB) can be modified to fight chronic lymphocytic leukemia (CLL) and Burkitt lymphoma (BL), according to research published in Leukemia.

Using a viral vector, researchers transduced CB-derived NK cells with a chimeric antigen receptor (CAR), interleukin-15 (IL-15), and an inducible caspase-9-based suicide gene.

The CAR directed the NK cells to kill CD19-expressing cells, IL-15 prolonged the NK cells’ survival and enhanced their antitumor activity, and the suicide gene allowed researchers to kill off the NK cells in the event of a severe inflammatory response.

“Natural killer cells are the immune system’s most potent killers, but they are short-lived, and cancers manage to evade a patient’s own NK cells to progress,” said study author Katy Rezvani, MD, PhD, of The University of Texas MD Anderson Cancer Center in Houston.

“Our cord-blood derived NK cells, genetically equipped with a receptor that focuses them on B-cell malignancies and with interleukin-15 to help them persist longer—potentially for months instead of 2 or 3 weeks—are designed to address these challenges.”

Dr Rezvani and her colleagues tested their CB-derived CAR NK cells in primary CLL cells and a mouse model of BL. Compared to unmodified NK cells, the CAR NK cells killed malignant cells more efficiently and extended the survival of mice.

Another experiment showed the CB-derived CAR NK cells killed CLL cells more efficiently than NK cells that were taken from CLL patients and modified in the same way. The researchers said this highlights the need to transplant CAR-engineered NK cells derived from healthy CB rather than using a patient’s own cells.

Additional experiments in the mouse model of BL showed that a single infusion of low-dose CAR NK cells resulted in prolonged survival.

When CAR NK cells were given at a higher dose, none of the mice died of BL. Half of them survived 100 days and beyond. However, all mice treated with other types of NK cells died by day 41.

Some mice treated with the higher dose of CAR NK cells died of cytokine release syndrome (CRS).

To counteract this toxicity, the researchers activated the suicide gene (iC9) via treatment with a small-molecule dimerizer, AP1903.

The team found that adding as little as 10 nM of AP1903 to cell cultures induced apoptosis/necrosis of the CAR NK cells within 4 hours but had no effect on non-CAR CB-derived NK cells. Similar results were observed in the mouse model.

Next steps

A phase 1/2 trial of these CB-derived CAR NK cells opened at MD Anderson in June for patients with relapsed or refractory CLL, acute lymphocytic leukemia, or non-Hodgkin lymphoma.

Dr Rezvani, the principal investigator of the trial, said the protocol calls for vigilance for signs of CRS, treatment with steroids and tocilizumab for low-grade CRS, and AP1903 added to activate the suicide gene for grade 3 or 4 CRS.

She and her colleagues noted that CB-derived NK cells do not cause graft-vs-host disease. Therefore, they can be an off-the-shelf product, prepared in advance with the necessary receptor and given to patients promptly.

The researchers are developing CB-derived CAR NK cells for other targets in hematologic and solid tumor malignancies.

MD Anderson and the researchers have intellectual property related to the engineered NK cells, which is being managed in accordance with the institution’s conflict-of-interest rules.

Funding for this research was provided by MD Anderson’s Moon Shots Program, the National Cancer Institute of the National Institutes of Health Cancer Center Support Grant (CA016672) to MD Anderson, and grants from the Leukemia and Lymphoma Society and the American Cancer Society.

Image by Joshua Stokes

Natural killer (NK) cells derived from cord blood (CB) can be modified to fight chronic lymphocytic leukemia (CLL) and Burkitt lymphoma (BL), according to research published in Leukemia.

Using a viral vector, researchers transduced CB-derived NK cells with a chimeric antigen receptor (CAR), interleukin-15 (IL-15), and an inducible caspase-9-based suicide gene.

The CAR directed the NK cells to kill CD19-expressing cells, IL-15 prolonged the NK cells’ survival and enhanced their antitumor activity, and the suicide gene allowed researchers to kill off the NK cells in the event of a severe inflammatory response.

“Natural killer cells are the immune system’s most potent killers, but they are short-lived, and cancers manage to evade a patient’s own NK cells to progress,” said study author Katy Rezvani, MD, PhD, of The University of Texas MD Anderson Cancer Center in Houston.

“Our cord-blood derived NK cells, genetically equipped with a receptor that focuses them on B-cell malignancies and with interleukin-15 to help them persist longer—potentially for months instead of 2 or 3 weeks—are designed to address these challenges.”

Dr Rezvani and her colleagues tested their CB-derived CAR NK cells in primary CLL cells and a mouse model of BL. Compared to unmodified NK cells, the CAR NK cells killed malignant cells more efficiently and extended the survival of mice.

Another experiment showed the CB-derived CAR NK cells killed CLL cells more efficiently than NK cells that were taken from CLL patients and modified in the same way. The researchers said this highlights the need to transplant CAR-engineered NK cells derived from healthy CB rather than using a patient’s own cells.

Additional experiments in the mouse model of BL showed that a single infusion of low-dose CAR NK cells resulted in prolonged survival.

When CAR NK cells were given at a higher dose, none of the mice died of BL. Half of them survived 100 days and beyond. However, all mice treated with other types of NK cells died by day 41.

Some mice treated with the higher dose of CAR NK cells died of cytokine release syndrome (CRS).

To counteract this toxicity, the researchers activated the suicide gene (iC9) via treatment with a small-molecule dimerizer, AP1903.

The team found that adding as little as 10 nM of AP1903 to cell cultures induced apoptosis/necrosis of the CAR NK cells within 4 hours but had no effect on non-CAR CB-derived NK cells. Similar results were observed in the mouse model.

Next steps

A phase 1/2 trial of these CB-derived CAR NK cells opened at MD Anderson in June for patients with relapsed or refractory CLL, acute lymphocytic leukemia, or non-Hodgkin lymphoma.

Dr Rezvani, the principal investigator of the trial, said the protocol calls for vigilance for signs of CRS, treatment with steroids and tocilizumab for low-grade CRS, and AP1903 added to activate the suicide gene for grade 3 or 4 CRS.

She and her colleagues noted that CB-derived NK cells do not cause graft-vs-host disease. Therefore, they can be an off-the-shelf product, prepared in advance with the necessary receptor and given to patients promptly.

The researchers are developing CB-derived CAR NK cells for other targets in hematologic and solid tumor malignancies.

MD Anderson and the researchers have intellectual property related to the engineered NK cells, which is being managed in accordance with the institution’s conflict-of-interest rules.

Funding for this research was provided by MD Anderson’s Moon Shots Program, the National Cancer Institute of the National Institutes of Health Cancer Center Support Grant (CA016672) to MD Anderson, and grants from the Leukemia and Lymphoma Society and the American Cancer Society.

Image by Joshua Stokes

Natural killer (NK) cells derived from cord blood (CB) can be modified to fight chronic lymphocytic leukemia (CLL) and Burkitt lymphoma (BL), according to research published in Leukemia.

Using a viral vector, researchers transduced CB-derived NK cells with a chimeric antigen receptor (CAR), interleukin-15 (IL-15), and an inducible caspase-9-based suicide gene.

The CAR directed the NK cells to kill CD19-expressing cells, IL-15 prolonged the NK cells’ survival and enhanced their antitumor activity, and the suicide gene allowed researchers to kill off the NK cells in the event of a severe inflammatory response.

“Natural killer cells are the immune system’s most potent killers, but they are short-lived, and cancers manage to evade a patient’s own NK cells to progress,” said study author Katy Rezvani, MD, PhD, of The University of Texas MD Anderson Cancer Center in Houston.

“Our cord-blood derived NK cells, genetically equipped with a receptor that focuses them on B-cell malignancies and with interleukin-15 to help them persist longer—potentially for months instead of 2 or 3 weeks—are designed to address these challenges.”

Dr Rezvani and her colleagues tested their CB-derived CAR NK cells in primary CLL cells and a mouse model of BL. Compared to unmodified NK cells, the CAR NK cells killed malignant cells more efficiently and extended the survival of mice.

Another experiment showed the CB-derived CAR NK cells killed CLL cells more efficiently than NK cells that were taken from CLL patients and modified in the same way. The researchers said this highlights the need to transplant CAR-engineered NK cells derived from healthy CB rather than using a patient’s own cells.

Additional experiments in the mouse model of BL showed that a single infusion of low-dose CAR NK cells resulted in prolonged survival.

When CAR NK cells were given at a higher dose, none of the mice died of BL. Half of them survived 100 days and beyond. However, all mice treated with other types of NK cells died by day 41.

Some mice treated with the higher dose of CAR NK cells died of cytokine release syndrome (CRS).

To counteract this toxicity, the researchers activated the suicide gene (iC9) via treatment with a small-molecule dimerizer, AP1903.

The team found that adding as little as 10 nM of AP1903 to cell cultures induced apoptosis/necrosis of the CAR NK cells within 4 hours but had no effect on non-CAR CB-derived NK cells. Similar results were observed in the mouse model.

Next steps

A phase 1/2 trial of these CB-derived CAR NK cells opened at MD Anderson in June for patients with relapsed or refractory CLL, acute lymphocytic leukemia, or non-Hodgkin lymphoma.

Dr Rezvani, the principal investigator of the trial, said the protocol calls for vigilance for signs of CRS, treatment with steroids and tocilizumab for low-grade CRS, and AP1903 added to activate the suicide gene for grade 3 or 4 CRS.

She and her colleagues noted that CB-derived NK cells do not cause graft-vs-host disease. Therefore, they can be an off-the-shelf product, prepared in advance with the necessary receptor and given to patients promptly.

The researchers are developing CB-derived CAR NK cells for other targets in hematologic and solid tumor malignancies.

MD Anderson and the researchers have intellectual property related to the engineered NK cells, which is being managed in accordance with the institution’s conflict-of-interest rules.

Funding for this research was provided by MD Anderson’s Moon Shots Program, the National Cancer Institute of the National Institutes of Health Cancer Center Support Grant (CA016672) to MD Anderson, and grants from the Leukemia and Lymphoma Society and the American Cancer Society.

on Malignant Lymphoma

LUGANO, SWITZERLAND—A 4-drug regimen has demonstrated efficacy in a phase 2 trial of patients with treatment-naïve extranodal natural killer/T-cell lymphoma (ENKTL).

Treatment with gemcitabine, PEG-asparaginase, dexamethasone, and methotrexate (GAD-M) produced a 94% overall response rate (ORR) and an 83% complete response (CR) rate in this trial.

Responses and survival rates were higher in patients with stage I/II disease, who also received radiotherapy, than in patients with stage III/IV disease.

Grade 1/2 toxicities were frequent, but there were few grade 3/4 non-hematologic toxicities. One patient died of treatment-related toxicity.

Zhiming Li, of Sun Yet-sen University Cancer Center in Guangzhou, China, presented these results at the 14th International Conference on Malignant Lymphoma (ICML).

Patients and treatment

The trial enrolled 41 patients with treatment-naïve ENKTL, and 36 of them were evaluable.

The patients’ median age was 45 (range, 18-75), and 30.6% were female. Most patients (86.1%) had stage I/II disease, 13.9% had an ECOG performance status of 2 or greater, and 41.7% had an IPI score of 2 or greater.

The GAD-M regimen consisted of:

• Gemcitabine given at 1000 mg/m² via intravenous drip on days 1 and 8
• PEG-asparaginase given at 2500 U/m² intramuscularly on day 1
• Dexamethasone given at 20 mg via intravenous drip on days 1 to 3
• Methotrexate given at 3000 mg/m² via continuous, 12-hour infusion on day 1.

The regimen was repeated every 3 weeks.

For patients with stage I/II disease, 2 to 4 cycles of the GAD-M regimen was followed by extensive involved-field radiotherapy and an additional 2 to 4 cycles. For patients with stage III/IV disease, GAD-M was repeated for 6 cycles.

Response and survival

The ORR was 94.4%, both after 2 cycles of GAD-M and after 6 cycles. The CR rate was 50% after 2 cycles and 83.3% after 6 cycles.

In patients with stage I/II disease, the ORR was 100% after 2 cycles and 6 cycles. The CR rate was 54.8% after 2 cycles and 90.3% after 6 cycles.

In patients with stage III/IV disease, the ORR was 60% after 2 cycles and 6 cycles. The CR rate was 20% after 2 cycles and 40% after 6 cycles.

At median follow-up of 23.3 months, the estimated 3-year progression-free survival (PFS) was 72.1%, and the overall survival (OS) was 76.3%.

For patients with stage I/II disease, the PFS was 77.3%, and the OS was 79.3%. For patients with stage III/IV disease, the PFS was 40%, and the OS was 60%.

Safety

Hematologic adverse events (AEs) included anemia (97.2% total, 52.8% grade 3/4), leukocytopenia (94.4%, 27.8% grade 3/4), neutropenia (88.9%, 5.6% grade 3), and thrombocytopenia (47.2%, 13.9% grade 3/4).

Non-hematologic AEs included hypoalbuminemia (100%, 5.6% grade 3), increased transaminases (88.9%, 5.6% grade 3), hyperbilirubinemia (52.8%, 11.1% grade 3), decreased fibrinogen (19.4%, 11.1% grade 4), vomiting (13.9%, 2.8% grade 5), increased creatinine (8.3%, 2.8% grade 3), and abdominal pain (5.6% grade 1).

The grade 5 treatment-related AE occurred in a 61-year-old man. He died of electrolyte disorders caused by severe vomiting.

on Malignant Lymphoma

LUGANO, SWITZERLAND—A 4-drug regimen has demonstrated efficacy in a phase 2 trial of patients with treatment-naïve extranodal natural killer/T-cell lymphoma (ENKTL).

Treatment with gemcitabine, PEG-asparaginase, dexamethasone, and methotrexate (GAD-M) produced a 94% overall response rate (ORR) and an 83% complete response (CR) rate in this trial.

Responses and survival rates were higher in patients with stage I/II disease, who also received radiotherapy, than in patients with stage III/IV disease.

Grade 1/2 toxicities were frequent, but there were few grade 3/4 non-hematologic toxicities. One patient died of treatment-related toxicity.

Zhiming Li, of Sun Yet-sen University Cancer Center in Guangzhou, China, presented these results at the 14th International Conference on Malignant Lymphoma (ICML).

Patients and treatment

The trial enrolled 41 patients with treatment-naïve ENKTL, and 36 of them were evaluable.

The patients’ median age was 45 (range, 18-75), and 30.6% were female. Most patients (86.1%) had stage I/II disease, 13.9% had an ECOG performance status of 2 or greater, and 41.7% had an IPI score of 2 or greater.

The GAD-M regimen consisted of:

• Gemcitabine given at 1000 mg/m² via intravenous drip on days 1 and 8
• PEG-asparaginase given at 2500 U/m² intramuscularly on day 1
• Dexamethasone given at 20 mg via intravenous drip on days 1 to 3
• Methotrexate given at 3000 mg/m² via continuous, 12-hour infusion on day 1.

The regimen was repeated every 3 weeks.

For patients with stage I/II disease, 2 to 4 cycles of the GAD-M regimen was followed by extensive involved-field radiotherapy and an additional 2 to 4 cycles. For patients with stage III/IV disease, GAD-M was repeated for 6 cycles.

Response and survival

The ORR was 94.4%, both after 2 cycles of GAD-M and after 6 cycles. The CR rate was 50% after 2 cycles and 83.3% after 6 cycles.

In patients with stage I/II disease, the ORR was 100% after 2 cycles and 6 cycles. The CR rate was 54.8% after 2 cycles and 90.3% after 6 cycles.

In patients with stage III/IV disease, the ORR was 60% after 2 cycles and 6 cycles. The CR rate was 20% after 2 cycles and 40% after 6 cycles.

At median follow-up of 23.3 months, the estimated 3-year progression-free survival (PFS) was 72.1%, and the overall survival (OS) was 76.3%.

For patients with stage I/II disease, the PFS was 77.3%, and the OS was 79.3%. For patients with stage III/IV disease, the PFS was 40%, and the OS was 60%.

Safety

Hematologic adverse events (AEs) included anemia (97.2% total, 52.8% grade 3/4), leukocytopenia (94.4%, 27.8% grade 3/4), neutropenia (88.9%, 5.6% grade 3), and thrombocytopenia (47.2%, 13.9% grade 3/4).

Non-hematologic AEs included hypoalbuminemia (100%, 5.6% grade 3), increased transaminases (88.9%, 5.6% grade 3), hyperbilirubinemia (52.8%, 11.1% grade 3), decreased fibrinogen (19.4%, 11.1% grade 4), vomiting (13.9%, 2.8% grade 5), increased creatinine (8.3%, 2.8% grade 3), and abdominal pain (5.6% grade 1).

The grade 5 treatment-related AE occurred in a 61-year-old man. He died of electrolyte disorders caused by severe vomiting.

on Malignant Lymphoma

LUGANO, SWITZERLAND—A 4-drug regimen has demonstrated efficacy in a phase 2 trial of patients with treatment-naïve extranodal natural killer/T-cell lymphoma (ENKTL).

Treatment with gemcitabine, PEG-asparaginase, dexamethasone, and methotrexate (GAD-M) produced a 94% overall response rate (ORR) and an 83% complete response (CR) rate in this trial.

Responses and survival rates were higher in patients with stage I/II disease, who also received radiotherapy, than in patients with stage III/IV disease.

Grade 1/2 toxicities were frequent, but there were few grade 3/4 non-hematologic toxicities. One patient died of treatment-related toxicity.

Zhiming Li, of Sun Yet-sen University Cancer Center in Guangzhou, China, presented these results at the 14th International Conference on Malignant Lymphoma (ICML).

Patients and treatment

The trial enrolled 41 patients with treatment-naïve ENKTL, and 36 of them were evaluable.

The patients’ median age was 45 (range, 18-75), and 30.6% were female. Most patients (86.1%) had stage I/II disease, 13.9% had an ECOG performance status of 2 or greater, and 41.7% had an IPI score of 2 or greater.

The GAD-M regimen consisted of:

• Gemcitabine given at 1000 mg/m² via intravenous drip on days 1 and 8
• PEG-asparaginase given at 2500 U/m² intramuscularly on day 1
• Dexamethasone given at 20 mg via intravenous drip on days 1 to 3
• Methotrexate given at 3000 mg/m² via continuous, 12-hour infusion on day 1.

The regimen was repeated every 3 weeks.

For patients with stage I/II disease, 2 to 4 cycles of the GAD-M regimen was followed by extensive involved-field radiotherapy and an additional 2 to 4 cycles. For patients with stage III/IV disease, GAD-M was repeated for 6 cycles.

Response and survival

The ORR was 94.4%, both after 2 cycles of GAD-M and after 6 cycles. The CR rate was 50% after 2 cycles and 83.3% after 6 cycles.

In patients with stage I/II disease, the ORR was 100% after 2 cycles and 6 cycles. The CR rate was 54.8% after 2 cycles and 90.3% after 6 cycles.

In patients with stage III/IV disease, the ORR was 60% after 2 cycles and 6 cycles. The CR rate was 20% after 2 cycles and 40% after 6 cycles.

At median follow-up of 23.3 months, the estimated 3-year progression-free survival (PFS) was 72.1%, and the overall survival (OS) was 76.3%.

For patients with stage I/II disease, the PFS was 77.3%, and the OS was 79.3%. For patients with stage III/IV disease, the PFS was 40%, and the OS was 60%.

Safety

Hematologic adverse events (AEs) included anemia (97.2% total, 52.8% grade 3/4), leukocytopenia (94.4%, 27.8% grade 3/4), neutropenia (88.9%, 5.6% grade 3), and thrombocytopenia (47.2%, 13.9% grade 3/4).

Non-hematologic AEs included hypoalbuminemia (100%, 5.6% grade 3), increased transaminases (88.9%, 5.6% grade 3), hyperbilirubinemia (52.8%, 11.1% grade 3), decreased fibrinogen (19.4%, 11.1% grade 4), vomiting (13.9%, 2.8% grade 5), increased creatinine (8.3%, 2.8% grade 3), and abdominal pain (5.6% grade 1).

The grade 5 treatment-related AE occurred in a 61-year-old man. He died of electrolyte disorders caused by severe vomiting.

Gilles Salles, MD, PhD

The chimeric antigen receptor (CAR) T-cell therapy CTL019 produced a high response rate in a phase 2 trial of adults with relapsed/refractory diffuse large B-cell lymphoma (DLBCL), according to researchers.

An interim analysis of the JULIET trial revealed a 3-month overall response rate (ORR) of 45%.

Thirty-seven percent of patients had a complete response (CR), and all of the patients who were in CR at 3 months were still in CR at the data cutoff point.

This confirms the high response rates and durable responses observed in a previous single-center trial*, said JULIET investigator Gilles Salles, MD, PhD, of Hospices Civils de Lyon in Lyon, France.

Dr Salles presented results from JULIET at the 22nd Congress of the European Hematology Association (EHA) in Madrid, Spain (abstract LB2604).

The results were also presented at the 14th International Conference on Malignant Lymphoma (ICML) in Lugano, Switzerland (abstract 007).

The study was sponsored by Novartis.

Patients

JULIET enrolled 141 patients age 18 and older with relapsed/refractory DLBCL.

Forty-three patients discontinued the study before receiving CTL019—28 due to progressive disease (including 16 deaths), 9 due to an inability to manufacture CTL019, 2 due to adverse events, 1 due to investigator decision, 1 due to study withdrawal, and 1 due to protocol deviation.

Eighty-five patients were infused. The remaining 13 patients were pending infusion at the data cutoff—December 20, 2016.

The median age of the 85 infused patients was 56 (range, 24-75). Ninety-six percent of patients had DLBCL not otherwise specified. Fifty-one percent had germinal center B-cell type DLBCL.

Fifty-four percent of patients had an ECOG performance status of 0, and 46% had a status of 1. Fifty-three percent of patients had stage IV disease, and 8% had bone marrow involvement.

Forty percent of patients had 2 prior lines of antineoplastic therapy, 29% had 3, and 31% had 4 to 7 prior lines.

Forty-one percent of patients were refractory to their last therapy, and 59% had relapsed after their last therapy. Fifty-one percent of patients had prior autologous stem cell transplant.

Treatment

Seventy-six patients (89%) received bridging chemotherapy to prevent disease progression during CTL019 manufacturing. This treatment was completed 2 to 14 days prior to CTL019 infusion.

The median CTL019 cell dose was 3.1 x 10⁸ (range, 0.1-6.0 x 10⁸).

Response

Fifty-one patients were evaluated for response. The median time from infusion to data cutoff was 3.7 months.

The best ORR was 59%, with a CR rate of 43% and a partial response rate of 16%. Twelve percent of patients had stable disease, and 24% progressed.

At 3 months, the ORR was 45%. The CR rate was 37%, and the partial response rate was 8%.

“All patients in CR at 3 months remained in CR at follow-up, and the median duration of response was not reached,” Dr Salles noted.

None of the responders went on to receive a transplant.

Safety

All 85 patients were evaluated for safety. Adverse events of special interest, occurring within 8 weeks of CTL019 infusion, were:

• Cytokine release syndrome—57% all grades, 17% grade 3, 9% grade 4
• Infections—27% all grades, 12% grade 3, 1% grade 4
• Cytopenias not resolved by day 28—26% all grades, 13% grade 3, 8% grade 4
• Neurologic events—21% all grades, 9% grade 3, 4% grade 4
• Febrile neutropenia—14% all grades, 13% grade 3, 1% grade 4
• Tumor lysis syndrome—1% grade 3.

“Adverse events were reversible and effectively managed at the different centers by appropriately trained study personnel,” Dr Salles noted. “There were no CTL019-related deaths and no cerebral edema.”

*SJ Schuster et al, 2016 ASH Annual Meeting, abstract 3026

Gilles Salles, MD, PhD

The chimeric antigen receptor (CAR) T-cell therapy CTL019 produced a high response rate in a phase 2 trial of adults with relapsed/refractory diffuse large B-cell lymphoma (DLBCL), according to researchers.

An interim analysis of the JULIET trial revealed a 3-month overall response rate (ORR) of 45%.

Thirty-seven percent of patients had a complete response (CR), and all of the patients who were in CR at 3 months were still in CR at the data cutoff point.

This confirms the high response rates and durable responses observed in a previous single-center trial*, said JULIET investigator Gilles Salles, MD, PhD, of Hospices Civils de Lyon in Lyon, France.

Dr Salles presented results from JULIET at the 22nd Congress of the European Hematology Association (EHA) in Madrid, Spain (abstract LB2604).

The results were also presented at the 14th International Conference on Malignant Lymphoma (ICML) in Lugano, Switzerland (abstract 007).

The study was sponsored by Novartis.

Patients

JULIET enrolled 141 patients age 18 and older with relapsed/refractory DLBCL.

Forty-three patients discontinued the study before receiving CTL019—28 due to progressive disease (including 16 deaths), 9 due to an inability to manufacture CTL019, 2 due to adverse events, 1 due to investigator decision, 1 due to study withdrawal, and 1 due to protocol deviation.

Eighty-five patients were infused. The remaining 13 patients were pending infusion at the data cutoff—December 20, 2016.

The median age of the 85 infused patients was 56 (range, 24-75). Ninety-six percent of patients had DLBCL not otherwise specified. Fifty-one percent had germinal center B-cell type DLBCL.

Fifty-four percent of patients had an ECOG performance status of 0, and 46% had a status of 1. Fifty-three percent of patients had stage IV disease, and 8% had bone marrow involvement.

Forty percent of patients had 2 prior lines of antineoplastic therapy, 29% had 3, and 31% had 4 to 7 prior lines.

Forty-one percent of patients were refractory to their last therapy, and 59% had relapsed after their last therapy. Fifty-one percent of patients had prior autologous stem cell transplant.

Treatment

Seventy-six patients (89%) received bridging chemotherapy to prevent disease progression during CTL019 manufacturing. This treatment was completed 2 to 14 days prior to CTL019 infusion.

The median CTL019 cell dose was 3.1 x 10⁸ (range, 0.1-6.0 x 10⁸).

Response

Fifty-one patients were evaluated for response. The median time from infusion to data cutoff was 3.7 months.

The best ORR was 59%, with a CR rate of 43% and a partial response rate of 16%. Twelve percent of patients had stable disease, and 24% progressed.

At 3 months, the ORR was 45%. The CR rate was 37%, and the partial response rate was 8%.

“All patients in CR at 3 months remained in CR at follow-up, and the median duration of response was not reached,” Dr Salles noted.

None of the responders went on to receive a transplant.

Safety

All 85 patients were evaluated for safety. Adverse events of special interest, occurring within 8 weeks of CTL019 infusion, were:

• Cytokine release syndrome—57% all grades, 17% grade 3, 9% grade 4
• Infections—27% all grades, 12% grade 3, 1% grade 4
• Cytopenias not resolved by day 28—26% all grades, 13% grade 3, 8% grade 4
• Neurologic events—21% all grades, 9% grade 3, 4% grade 4
• Febrile neutropenia—14% all grades, 13% grade 3, 1% grade 4
• Tumor lysis syndrome—1% grade 3.

“Adverse events were reversible and effectively managed at the different centers by appropriately trained study personnel,” Dr Salles noted. “There were no CTL019-related deaths and no cerebral edema.”

*SJ Schuster et al, 2016 ASH Annual Meeting, abstract 3026

Gilles Salles, MD, PhD

The chimeric antigen receptor (CAR) T-cell therapy CTL019 produced a high response rate in a phase 2 trial of adults with relapsed/refractory diffuse large B-cell lymphoma (DLBCL), according to researchers.

An interim analysis of the JULIET trial revealed a 3-month overall response rate (ORR) of 45%.

Thirty-seven percent of patients had a complete response (CR), and all of the patients who were in CR at 3 months were still in CR at the data cutoff point.

This confirms the high response rates and durable responses observed in a previous single-center trial*, said JULIET investigator Gilles Salles, MD, PhD, of Hospices Civils de Lyon in Lyon, France.

Dr Salles presented results from JULIET at the 22nd Congress of the European Hematology Association (EHA) in Madrid, Spain (abstract LB2604).

The results were also presented at the 14th International Conference on Malignant Lymphoma (ICML) in Lugano, Switzerland (abstract 007).

The study was sponsored by Novartis.

Patients

JULIET enrolled 141 patients age 18 and older with relapsed/refractory DLBCL.

Forty-three patients discontinued the study before receiving CTL019—28 due to progressive disease (including 16 deaths), 9 due to an inability to manufacture CTL019, 2 due to adverse events, 1 due to investigator decision, 1 due to study withdrawal, and 1 due to protocol deviation.

Eighty-five patients were infused. The remaining 13 patients were pending infusion at the data cutoff—December 20, 2016.

The median age of the 85 infused patients was 56 (range, 24-75). Ninety-six percent of patients had DLBCL not otherwise specified. Fifty-one percent had germinal center B-cell type DLBCL.

Fifty-four percent of patients had an ECOG performance status of 0, and 46% had a status of 1. Fifty-three percent of patients had stage IV disease, and 8% had bone marrow involvement.

Forty percent of patients had 2 prior lines of antineoplastic therapy, 29% had 3, and 31% had 4 to 7 prior lines.

Forty-one percent of patients were refractory to their last therapy, and 59% had relapsed after their last therapy. Fifty-one percent of patients had prior autologous stem cell transplant.

Treatment

Seventy-six patients (89%) received bridging chemotherapy to prevent disease progression during CTL019 manufacturing. This treatment was completed 2 to 14 days prior to CTL019 infusion.

The median CTL019 cell dose was 3.1 x 10⁸ (range, 0.1-6.0 x 10⁸).

Response

Fifty-one patients were evaluated for response. The median time from infusion to data cutoff was 3.7 months.

The best ORR was 59%, with a CR rate of 43% and a partial response rate of 16%. Twelve percent of patients had stable disease, and 24% progressed.

At 3 months, the ORR was 45%. The CR rate was 37%, and the partial response rate was 8%.

“All patients in CR at 3 months remained in CR at follow-up, and the median duration of response was not reached,” Dr Salles noted.

None of the responders went on to receive a transplant.

Safety

All 85 patients were evaluated for safety. Adverse events of special interest, occurring within 8 weeks of CTL019 infusion, were:

• Cytokine release syndrome—57% all grades, 17% grade 3, 9% grade 4
• Infections—27% all grades, 12% grade 3, 1% grade 4
• Cytopenias not resolved by day 28—26% all grades, 13% grade 3, 8% grade 4
• Neurologic events—21% all grades, 9% grade 3, 4% grade 4
• Febrile neutropenia—14% all grades, 13% grade 3, 1% grade 4
• Tumor lysis syndrome—1% grade 3.

“Adverse events were reversible and effectively managed at the different centers by appropriately trained study personnel,” Dr Salles noted. “There were no CTL019-related deaths and no cerebral edema.”

*SJ Schuster et al, 2016 ASH Annual Meeting, abstract 3026

Micrograph showing CLL

LUGANO, SWITZERLAND—Results of a phase 1 study suggest a 2-drug combination may be safe and effective in patients with chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) and follicular lymphoma (FL).

The ongoing study is a test of the BTK inhibitor BGB-3111 and the anti-CD20 antibody obinutuzumab.

The overall response rate (ORR) with this combination was 81% in the entire study population, 89% in treatment-naïve CLL/SLL patients, 92% in relapsed/refractory CLL/SLL patients, and 73% in relapsed/refractory FL patients.

The rate of serious adverse events (AEs) was 24% in both CLL/SLL and FL patients.

These results were presented at the 14th International Conference on Malignant Lymphoma (ICML). The research was sponsored by BeiGene, Ltd.

“This clinical trial is supported by preclinical work suggesting that BGB-3111 may combine well with antibodies that rely on antibody-dependent cell-mediated cytotoxicity, such as obinutuzumab, because of less off-target inhibition of interleukin-2-inducible T-cell kinase,” said study investigator Constantine Tam, MD, of St. Vincent’s Hospital in Melbourne, Australia.

“The preliminary clinical results to date suggest that the combination is well tolerated and highly active in patients with CLL or SLL and FL. Complete responses have already been observed in patients with both disease types, including CLL or SLL patients with high-risk features, despite a very short follow-up time.”

The trial consists of a dose-escalation phase and a dose-expansion phase in disease-specific cohorts, which include treatment-naive or relapsed/refractory CLL/SLL and relapsed/refractory FL.

The dose-escalation component is testing BGB-3111 at 320 mg once daily or 160 mg twice daily in 28-day cycles, in combination with obinutuzumab. Obinutuzumab is administered in line with standard CLL dosing (3 loading doses of 1000 mg weekly, followed by 1000 mg on day 1 of cycles 2 to 6).

The ongoing dose-expansion component is testing doses of BGB-3111 at 160 mg twice daily with the same obinutuzumab schedule.

As of the data cutoff (March 31, 2017), 45 patients with CLL/SLL and 17 patients with FL were enrolled in the trial.

Patient characteristics

The median age was 68 (range, 28-82) in the CLL/SLL patients and 56 (range, 41-86) in the FL patients.

ECOG performance status was 0 in 42% of CLL/SLL patients, 1 in 56% of these patients, and 2 in 2%. ECOG performance status was 0 in 82% of FL patients, 1 in 12% of these patients, and 2 in 6%.

Twenty CLL/SLL patients were treatment-naïve, and 25 had relapsed/refractory disease. All 17 FL patients had relapsed/refractory disease.

The median number of prior therapies was 1 (range, 1-4) in the relapsed/refractory CLL/SLL patients and 3 (range, 1-7) in the FL patients.

Safety

At the time of the data cutoff, BGB-3111 was deemed well tolerated in patients with CLL/SLL and FL.

The most frequent AEs of any cause occurring in at least 15% of patients with CLL/SLL were petechiae/purpura/contusion (33%), neutropenia (31%), thrombocytopenia (22%), fatigue (18%), pyrexia (18%), upper respiratory tract infection (18%), and diarrhea (16%).

Most of these events were grade 1/2. The exceptions were grade 3/4 neutropenia (20%) and grade 3/4 thrombocytopenia (4%).

The most frequent AEs in FL patients were petechiae/purpura/contusion (35%), fatigue (29%), cough (18%), diarrhea (18%), dizziness (18%), headache (18%), insomnia (18%), nausea (18%), and upper respiratory tract infection (18%). All of these events were grade 1/2.

Serious AEs occurred in 24% of both the CLL/SLL patients and the FL patients.

Infusion-related reactions occurred in 24% of CLL/SLL patients and 6% of FL patients. Nearly all cases were grade 1/2. The exception was 1 grade 4 case in a CLL/SLL patient.

There were no cases of serious hemorrhage (≥ grade 3 hemorrhage or central nervous system hemorrhage of any grade) or atrial fibrillation.

One patient discontinued treatment due to an AE—squamous cell carcinoma. This patient had a prior history of squamous cell carcinoma.

Efficacy

At the time of the data cutoff, 43 patients with CLL/SLL (18 treatment-naive, 25 relapsed/refractory) and 15 patients with relapsed/refractory FL had greater than 12 weeks of follow-up and were evaluable for efficacy.

In treatment-naive CLL/SLL, after a median follow-up of 7.0 months (range, 2.8–11.8 months), the ORR was 89%. The complete response (CR) rate was 22%, the rate of partial response (PR) was 67%, and the rate of stable disease (SD) was 11%.

In relapsed/refractory CLL/SLL, at a median follow-up of 8.0 months (range, 3.8–14.0 months) the ORR was 92%. The CR rate was 16%, the PR rate was 76%, and 4% of patients had SD.

One patient (4%) with relapsed/refractory CLL/SLL had progressive disease (Richter’s transformation).

In relapsed/refractory FL, at a median follow-up of 6.2 months (range, 1.2–10.7 months), the ORR was 73%. The CR rate was 33%, the PR rate was 40%, and 13% of patients had SD.

Two patients (13%) with relapsed/refractory FL had progressive disease.

On the basis of these data, BeiGene plans to expand its global registrational program for BGB-3111 to include a phase 2 trial of BGB-3111 in combination with obinutuzumab compared to obinutuzumab alone in patients with relapsed/refractory FL.

The company is also planning a phase 3 trial comparing BGB-3111 with bendamustine plus rituximab in patients with treatment-naive CLL.

Micrograph showing CLL

LUGANO, SWITZERLAND—Results of a phase 1 study suggest a 2-drug combination may be safe and effective in patients with chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) and follicular lymphoma (FL).

The ongoing study is a test of the BTK inhibitor BGB-3111 and the anti-CD20 antibody obinutuzumab.

The overall response rate (ORR) with this combination was 81% in the entire study population, 89% in treatment-naïve CLL/SLL patients, 92% in relapsed/refractory CLL/SLL patients, and 73% in relapsed/refractory FL patients.

The rate of serious adverse events (AEs) was 24% in both CLL/SLL and FL patients.

These results were presented at the 14th International Conference on Malignant Lymphoma (ICML). The research was sponsored by BeiGene, Ltd.

“This clinical trial is supported by preclinical work suggesting that BGB-3111 may combine well with antibodies that rely on antibody-dependent cell-mediated cytotoxicity, such as obinutuzumab, because of less off-target inhibition of interleukin-2-inducible T-cell kinase,” said study investigator Constantine Tam, MD, of St. Vincent’s Hospital in Melbourne, Australia.

“The preliminary clinical results to date suggest that the combination is well tolerated and highly active in patients with CLL or SLL and FL. Complete responses have already been observed in patients with both disease types, including CLL or SLL patients with high-risk features, despite a very short follow-up time.”

The trial consists of a dose-escalation phase and a dose-expansion phase in disease-specific cohorts, which include treatment-naive or relapsed/refractory CLL/SLL and relapsed/refractory FL.

The dose-escalation component is testing BGB-3111 at 320 mg once daily or 160 mg twice daily in 28-day cycles, in combination with obinutuzumab. Obinutuzumab is administered in line with standard CLL dosing (3 loading doses of 1000 mg weekly, followed by 1000 mg on day 1 of cycles 2 to 6).

The ongoing dose-expansion component is testing doses of BGB-3111 at 160 mg twice daily with the same obinutuzumab schedule.

As of the data cutoff (March 31, 2017), 45 patients with CLL/SLL and 17 patients with FL were enrolled in the trial.

Patient characteristics

The median age was 68 (range, 28-82) in the CLL/SLL patients and 56 (range, 41-86) in the FL patients.

ECOG performance status was 0 in 42% of CLL/SLL patients, 1 in 56% of these patients, and 2 in 2%. ECOG performance status was 0 in 82% of FL patients, 1 in 12% of these patients, and 2 in 6%.

Twenty CLL/SLL patients were treatment-naïve, and 25 had relapsed/refractory disease. All 17 FL patients had relapsed/refractory disease.

The median number of prior therapies was 1 (range, 1-4) in the relapsed/refractory CLL/SLL patients and 3 (range, 1-7) in the FL patients.

Safety

At the time of the data cutoff, BGB-3111 was deemed well tolerated in patients with CLL/SLL and FL.

The most frequent AEs of any cause occurring in at least 15% of patients with CLL/SLL were petechiae/purpura/contusion (33%), neutropenia (31%), thrombocytopenia (22%), fatigue (18%), pyrexia (18%), upper respiratory tract infection (18%), and diarrhea (16%).

Most of these events were grade 1/2. The exceptions were grade 3/4 neutropenia (20%) and grade 3/4 thrombocytopenia (4%).

The most frequent AEs in FL patients were petechiae/purpura/contusion (35%), fatigue (29%), cough (18%), diarrhea (18%), dizziness (18%), headache (18%), insomnia (18%), nausea (18%), and upper respiratory tract infection (18%). All of these events were grade 1/2.

Serious AEs occurred in 24% of both the CLL/SLL patients and the FL patients.

Infusion-related reactions occurred in 24% of CLL/SLL patients and 6% of FL patients. Nearly all cases were grade 1/2. The exception was 1 grade 4 case in a CLL/SLL patient.

There were no cases of serious hemorrhage (≥ grade 3 hemorrhage or central nervous system hemorrhage of any grade) or atrial fibrillation.

One patient discontinued treatment due to an AE—squamous cell carcinoma. This patient had a prior history of squamous cell carcinoma.

Efficacy

At the time of the data cutoff, 43 patients with CLL/SLL (18 treatment-naive, 25 relapsed/refractory) and 15 patients with relapsed/refractory FL had greater than 12 weeks of follow-up and were evaluable for efficacy.

In treatment-naive CLL/SLL, after a median follow-up of 7.0 months (range, 2.8–11.8 months), the ORR was 89%. The complete response (CR) rate was 22%, the rate of partial response (PR) was 67%, and the rate of stable disease (SD) was 11%.

In relapsed/refractory CLL/SLL, at a median follow-up of 8.0 months (range, 3.8–14.0 months) the ORR was 92%. The CR rate was 16%, the PR rate was 76%, and 4% of patients had SD.

One patient (4%) with relapsed/refractory CLL/SLL had progressive disease (Richter’s transformation).

In relapsed/refractory FL, at a median follow-up of 6.2 months (range, 1.2–10.7 months), the ORR was 73%. The CR rate was 33%, the PR rate was 40%, and 13% of patients had SD.

Two patients (13%) with relapsed/refractory FL had progressive disease.

On the basis of these data, BeiGene plans to expand its global registrational program for BGB-3111 to include a phase 2 trial of BGB-3111 in combination with obinutuzumab compared to obinutuzumab alone in patients with relapsed/refractory FL.

The company is also planning a phase 3 trial comparing BGB-3111 with bendamustine plus rituximab in patients with treatment-naive CLL.

Micrograph showing CLL

LUGANO, SWITZERLAND—Results of a phase 1 study suggest a 2-drug combination may be safe and effective in patients with chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) and follicular lymphoma (FL).

The ongoing study is a test of the BTK inhibitor BGB-3111 and the anti-CD20 antibody obinutuzumab.

The overall response rate (ORR) with this combination was 81% in the entire study population, 89% in treatment-naïve CLL/SLL patients, 92% in relapsed/refractory CLL/SLL patients, and 73% in relapsed/refractory FL patients.

The rate of serious adverse events (AEs) was 24% in both CLL/SLL and FL patients.

These results were presented at the 14th International Conference on Malignant Lymphoma (ICML). The research was sponsored by BeiGene, Ltd.

“This clinical trial is supported by preclinical work suggesting that BGB-3111 may combine well with antibodies that rely on antibody-dependent cell-mediated cytotoxicity, such as obinutuzumab, because of less off-target inhibition of interleukin-2-inducible T-cell kinase,” said study investigator Constantine Tam, MD, of St. Vincent’s Hospital in Melbourne, Australia.

“The preliminary clinical results to date suggest that the combination is well tolerated and highly active in patients with CLL or SLL and FL. Complete responses have already been observed in patients with both disease types, including CLL or SLL patients with high-risk features, despite a very short follow-up time.”

The trial consists of a dose-escalation phase and a dose-expansion phase in disease-specific cohorts, which include treatment-naive or relapsed/refractory CLL/SLL and relapsed/refractory FL.

The dose-escalation component is testing BGB-3111 at 320 mg once daily or 160 mg twice daily in 28-day cycles, in combination with obinutuzumab. Obinutuzumab is administered in line with standard CLL dosing (3 loading doses of 1000 mg weekly, followed by 1000 mg on day 1 of cycles 2 to 6).

The ongoing dose-expansion component is testing doses of BGB-3111 at 160 mg twice daily with the same obinutuzumab schedule.

As of the data cutoff (March 31, 2017), 45 patients with CLL/SLL and 17 patients with FL were enrolled in the trial.

Patient characteristics

The median age was 68 (range, 28-82) in the CLL/SLL patients and 56 (range, 41-86) in the FL patients.

ECOG performance status was 0 in 42% of CLL/SLL patients, 1 in 56% of these patients, and 2 in 2%. ECOG performance status was 0 in 82% of FL patients, 1 in 12% of these patients, and 2 in 6%.

Twenty CLL/SLL patients were treatment-naïve, and 25 had relapsed/refractory disease. All 17 FL patients had relapsed/refractory disease.

The median number of prior therapies was 1 (range, 1-4) in the relapsed/refractory CLL/SLL patients and 3 (range, 1-7) in the FL patients.

Safety

At the time of the data cutoff, BGB-3111 was deemed well tolerated in patients with CLL/SLL and FL.

The most frequent AEs of any cause occurring in at least 15% of patients with CLL/SLL were petechiae/purpura/contusion (33%), neutropenia (31%), thrombocytopenia (22%), fatigue (18%), pyrexia (18%), upper respiratory tract infection (18%), and diarrhea (16%).

Most of these events were grade 1/2. The exceptions were grade 3/4 neutropenia (20%) and grade 3/4 thrombocytopenia (4%).

The most frequent AEs in FL patients were petechiae/purpura/contusion (35%), fatigue (29%), cough (18%), diarrhea (18%), dizziness (18%), headache (18%), insomnia (18%), nausea (18%), and upper respiratory tract infection (18%). All of these events were grade 1/2.

Serious AEs occurred in 24% of both the CLL/SLL patients and the FL patients.

Infusion-related reactions occurred in 24% of CLL/SLL patients and 6% of FL patients. Nearly all cases were grade 1/2. The exception was 1 grade 4 case in a CLL/SLL patient.

There were no cases of serious hemorrhage (≥ grade 3 hemorrhage or central nervous system hemorrhage of any grade) or atrial fibrillation.

One patient discontinued treatment due to an AE—squamous cell carcinoma. This patient had a prior history of squamous cell carcinoma.

Efficacy

At the time of the data cutoff, 43 patients with CLL/SLL (18 treatment-naive, 25 relapsed/refractory) and 15 patients with relapsed/refractory FL had greater than 12 weeks of follow-up and were evaluable for efficacy.

In treatment-naive CLL/SLL, after a median follow-up of 7.0 months (range, 2.8–11.8 months), the ORR was 89%. The complete response (CR) rate was 22%, the rate of partial response (PR) was 67%, and the rate of stable disease (SD) was 11%.

In relapsed/refractory CLL/SLL, at a median follow-up of 8.0 months (range, 3.8–14.0 months) the ORR was 92%. The CR rate was 16%, the PR rate was 76%, and 4% of patients had SD.

One patient (4%) with relapsed/refractory CLL/SLL had progressive disease (Richter’s transformation).

In relapsed/refractory FL, at a median follow-up of 6.2 months (range, 1.2–10.7 months), the ORR was 73%. The CR rate was 33%, the PR rate was 40%, and 13% of patients had SD.

Two patients (13%) with relapsed/refractory FL had progressive disease.

On the basis of these data, BeiGene plans to expand its global registrational program for BGB-3111 to include a phase 2 trial of BGB-3111 in combination with obinutuzumab compared to obinutuzumab alone in patients with relapsed/refractory FL.

The company is also planning a phase 3 trial comparing BGB-3111 with bendamustine plus rituximab in patients with treatment-naive CLL.

Micrograph showing DLBCL

The European Medicines Agency (EMA) has granted polatuzumab vedotin access to the agency’s PRIority MEdicines (PRIME) program.

The access is for polatuzumab vedotin when used in combination with rituximab and bendamustine for the treatment of relapsed or refractory diffuse large B-cell lymphoma (DLBCL).

Polatuzumab vedotin is an anti-CD79b antibody drug conjugate consisting of an anti-CD79b monoclonal antibody that is linked to a microtubule-disrupting agent.

Polatuzumab vedotin is being developed by Roche utilizing Seattle Genetics’ technology.

The goal of the EMA’s PRIME program is to accelerate the development of therapies that may offer a major advantage over existing treatments or benefit patients with no treatment options.

Through PRIME, the EMA offers early and enhanced support to developers in order to optimize development plans and speed regulatory evaluations to potentially bring therapies to patients more quickly.

To be accepted for PRIME, a therapy must demonstrate the potential to benefit patients with unmet medical need through early clinical or nonclinical data.

The acceptance of polatuzumab vedotin in the PRIME program was supported by results from the phase 2 component of the GO29365 study.

Results from this trial were recently presented at the 22nd Congress of the European Hematology Association (EHA) as abstract S468.

Micrograph showing DLBCL

The European Medicines Agency (EMA) has granted polatuzumab vedotin access to the agency’s PRIority MEdicines (PRIME) program.

The access is for polatuzumab vedotin when used in combination with rituximab and bendamustine for the treatment of relapsed or refractory diffuse large B-cell lymphoma (DLBCL).

Polatuzumab vedotin is an anti-CD79b antibody drug conjugate consisting of an anti-CD79b monoclonal antibody that is linked to a microtubule-disrupting agent.

Polatuzumab vedotin is being developed by Roche utilizing Seattle Genetics’ technology.

The goal of the EMA’s PRIME program is to accelerate the development of therapies that may offer a major advantage over existing treatments or benefit patients with no treatment options.

Through PRIME, the EMA offers early and enhanced support to developers in order to optimize development plans and speed regulatory evaluations to potentially bring therapies to patients more quickly.

To be accepted for PRIME, a therapy must demonstrate the potential to benefit patients with unmet medical need through early clinical or nonclinical data.

The acceptance of polatuzumab vedotin in the PRIME program was supported by results from the phase 2 component of the GO29365 study.

Results from this trial were recently presented at the 22nd Congress of the European Hematology Association (EHA) as abstract S468.

Micrograph showing DLBCL

The European Medicines Agency (EMA) has granted polatuzumab vedotin access to the agency’s PRIority MEdicines (PRIME) program.

The access is for polatuzumab vedotin when used in combination with rituximab and bendamustine for the treatment of relapsed or refractory diffuse large B-cell lymphoma (DLBCL).

Polatuzumab vedotin is an anti-CD79b antibody drug conjugate consisting of an anti-CD79b monoclonal antibody that is linked to a microtubule-disrupting agent.

Polatuzumab vedotin is being developed by Roche utilizing Seattle Genetics’ technology.

The goal of the EMA’s PRIME program is to accelerate the development of therapies that may offer a major advantage over existing treatments or benefit patients with no treatment options.

Through PRIME, the EMA offers early and enhanced support to developers in order to optimize development plans and speed regulatory evaluations to potentially bring therapies to patients more quickly.

To be accepted for PRIME, a therapy must demonstrate the potential to benefit patients with unmet medical need through early clinical or nonclinical data.

The acceptance of polatuzumab vedotin in the PRIME program was supported by results from the phase 2 component of the GO29365 study.

Results from this trial were recently presented at the 22nd Congress of the European Hematology Association (EHA) as abstract S468.

Diffuse large B-cell lymphoma

LUGANO, SWITZERLAND—The chimeric antigen receptor (CAR) T-cell therapy JCAR017 can produce “potent and durable” responses in patients with relapsed/refractory, aggressive diffuse large B-cell lymphoma (DLBCL), according to an investigator from the TRANSCEND NHL 001 trial.

In this phase 1 trial, JCAR017, given after lymphodepleting chemotherapy, produced an overall response rate (ORR) of 76% and a complete response (CR) rate of 52%.

At 3 months of follow-up, the ORR was 51%, and the CR rate was 39%.

Responses were seen even in poor-risk subgroups, noted study investigator Jeremy Abramson, MD, of Massachusetts General Hospital Cancer Center in Boston.

“TRANSCEND NHL 001 is the first multicenter study of a CD19-directed CAR T-cell product with a fixed CD4 and CD8 composition to deliver potent and durable responses in high-risk subsets in DLBCL,” Dr Abramson said.

He presented data from the trial at the 2017 International Conference on Malignant Lymphoma (ICML) as abstract 128. The research was sponsored by Juno Therapeutics, the company developing JCAR017.

Patients

Dr Abramson presented data on 55 patients with relapsed/refractory non-Hodgkin lymphoma. Forty patients had DLBCL not otherwise specified, 14 had transformed DLBCL, and 1 had grade 3B follicular lymphoma. Fifteen patients had double- or triple-hit lymphoma.

The patients’ median age was 61 (range, 29-82), and 69% were male. Eighty-seven percent of patients (n=48) had an ECOG status of 0 to 1. Two patients had central nervous system involvement.

The patients had received a median of 3 prior lines of therapy (range, 1-11). Seventy-six percent of patients (n=42) were chemo-refractory, 7% (n=4) had received an allogeneic transplant, and 44% (n=24) had received an autologous transplant.

Treatment

Patients received 1 of 2 doses of JCAR017 after fludarabine/cyclophosphamide lymphodepletion.

Thirty patients received a single dose of JCAR017 at 5 x 10⁷ CAR cells (dose-level 1, single [DL1S]).

Six patients received 2 doses of 5 x 10⁷ CAR cells (dose-level 1, double [DL1D]).

Nineteen patients received a single dose of 1 x 10⁸ CAR cells (dose-level 2, single [DL2S]).

Safety

More than 90% of patients experienced a treatment-emergent adverse event (AE), and 60% had a treatment-related AE.

Treatment-emergent AEs occurring in more than 20% of patients included cytokine release syndrome (CRS), fatigue, nausea, constipation, decreased appetite, diarrhea, hypotension, neutropenia, anemia, and thrombocytopenia.

One patient had a grade 5 AE of diffuse alveolar damage that was thought to be related to fludarabine, cyclophosphamide, and JCAR017.

Another patient had a grade 5 AE of multiorgan failure that was considered unrelated to study treatment and due to disease progression.

The rate of grade 1/2 CRS was 33% (n=18), and the rate of grade 3/4 CRS was 2% (n=1). The rate of grade 1/2 neurotoxicity was 6% (n=3), and the rate of grade 3/4 neurotoxicity was 16% (n=9).

There were no deaths from CRS or neurotoxicity. The median time to onset of CRS was 5 days (range, 1-23), and the median time to onset of neurotoxicity was 11 days (range, 5-23).

“JCAR017 toxicities have, thus far, been relatively low and highly manageable at all dose levels tested, with a favorable safety profile that may enable outpatient administration,” Dr Abramson said.

Response

Fifty-four patients were evaluable for response. The ORR was 76%, and the CR rate was 52%. At 3 months of follow-up, the ORR was 51%, and the CR rate was 39%.

Dr Abramson noted that there was a dose-response relationship.

Overall, in the DL1S cohort, the ORR was 80%, and the CR rate was 53%. In the DL2S cohort, the ORR was 72%, and the CR rate was 50%. In the DL1D cohort, the ORR was 67%, and the CR rate was 50%.

At 3 months, in the DL1S cohort, the ORR was 46%, and the CR rate was 33%. In the DL2S cohort, the ORR was 64%, and the CR rate was 46%. In the DL1D cohort, the ORR and CR rate were both 50%.

Dr Abramson also noted that JCAR017 could produce a high response rate in poor-risk subgroups.

At 3 months, the ORR was 91% in patients who relapsed less than 12 months after transplant, 82% in patients with double- or triple-hit lymphoma, 48% in patients who had never achieved a CR, 47% in chemo-refractory patients, 31% in patients with primary refractory lymphoma, and 24% in patients with stable disease or progression after last chemotherapy.

Diffuse large B-cell lymphoma

LUGANO, SWITZERLAND—The chimeric antigen receptor (CAR) T-cell therapy JCAR017 can produce “potent and durable” responses in patients with relapsed/refractory, aggressive diffuse large B-cell lymphoma (DLBCL), according to an investigator from the TRANSCEND NHL 001 trial.

In this phase 1 trial, JCAR017, given after lymphodepleting chemotherapy, produced an overall response rate (ORR) of 76% and a complete response (CR) rate of 52%.

At 3 months of follow-up, the ORR was 51%, and the CR rate was 39%.

Responses were seen even in poor-risk subgroups, noted study investigator Jeremy Abramson, MD, of Massachusetts General Hospital Cancer Center in Boston.

“TRANSCEND NHL 001 is the first multicenter study of a CD19-directed CAR T-cell product with a fixed CD4 and CD8 composition to deliver potent and durable responses in high-risk subsets in DLBCL,” Dr Abramson said.

He presented data from the trial at the 2017 International Conference on Malignant Lymphoma (ICML) as abstract 128. The research was sponsored by Juno Therapeutics, the company developing JCAR017.

Patients

Dr Abramson presented data on 55 patients with relapsed/refractory non-Hodgkin lymphoma. Forty patients had DLBCL not otherwise specified, 14 had transformed DLBCL, and 1 had grade 3B follicular lymphoma. Fifteen patients had double- or triple-hit lymphoma.

The patients’ median age was 61 (range, 29-82), and 69% were male. Eighty-seven percent of patients (n=48) had an ECOG status of 0 to 1. Two patients had central nervous system involvement.

The patients had received a median of 3 prior lines of therapy (range, 1-11). Seventy-six percent of patients (n=42) were chemo-refractory, 7% (n=4) had received an allogeneic transplant, and 44% (n=24) had received an autologous transplant.

Treatment

Patients received 1 of 2 doses of JCAR017 after fludarabine/cyclophosphamide lymphodepletion.

Thirty patients received a single dose of JCAR017 at 5 x 10⁷ CAR cells (dose-level 1, single [DL1S]).

Six patients received 2 doses of 5 x 10⁷ CAR cells (dose-level 1, double [DL1D]).

Nineteen patients received a single dose of 1 x 10⁸ CAR cells (dose-level 2, single [DL2S]).

Safety

More than 90% of patients experienced a treatment-emergent adverse event (AE), and 60% had a treatment-related AE.

Treatment-emergent AEs occurring in more than 20% of patients included cytokine release syndrome (CRS), fatigue, nausea, constipation, decreased appetite, diarrhea, hypotension, neutropenia, anemia, and thrombocytopenia.

One patient had a grade 5 AE of diffuse alveolar damage that was thought to be related to fludarabine, cyclophosphamide, and JCAR017.

Another patient had a grade 5 AE of multiorgan failure that was considered unrelated to study treatment and due to disease progression.

The rate of grade 1/2 CRS was 33% (n=18), and the rate of grade 3/4 CRS was 2% (n=1). The rate of grade 1/2 neurotoxicity was 6% (n=3), and the rate of grade 3/4 neurotoxicity was 16% (n=9).

There were no deaths from CRS or neurotoxicity. The median time to onset of CRS was 5 days (range, 1-23), and the median time to onset of neurotoxicity was 11 days (range, 5-23).

“JCAR017 toxicities have, thus far, been relatively low and highly manageable at all dose levels tested, with a favorable safety profile that may enable outpatient administration,” Dr Abramson said.

Response

Fifty-four patients were evaluable for response. The ORR was 76%, and the CR rate was 52%. At 3 months of follow-up, the ORR was 51%, and the CR rate was 39%.

Dr Abramson noted that there was a dose-response relationship.

Overall, in the DL1S cohort, the ORR was 80%, and the CR rate was 53%. In the DL2S cohort, the ORR was 72%, and the CR rate was 50%. In the DL1D cohort, the ORR was 67%, and the CR rate was 50%.

At 3 months, in the DL1S cohort, the ORR was 46%, and the CR rate was 33%. In the DL2S cohort, the ORR was 64%, and the CR rate was 46%. In the DL1D cohort, the ORR and CR rate were both 50%.

Dr Abramson also noted that JCAR017 could produce a high response rate in poor-risk subgroups.

At 3 months, the ORR was 91% in patients who relapsed less than 12 months after transplant, 82% in patients with double- or triple-hit lymphoma, 48% in patients who had never achieved a CR, 47% in chemo-refractory patients, 31% in patients with primary refractory lymphoma, and 24% in patients with stable disease or progression after last chemotherapy.

Diffuse large B-cell lymphoma

LUGANO, SWITZERLAND—The chimeric antigen receptor (CAR) T-cell therapy JCAR017 can produce “potent and durable” responses in patients with relapsed/refractory, aggressive diffuse large B-cell lymphoma (DLBCL), according to an investigator from the TRANSCEND NHL 001 trial.

In this phase 1 trial, JCAR017, given after lymphodepleting chemotherapy, produced an overall response rate (ORR) of 76% and a complete response (CR) rate of 52%.

At 3 months of follow-up, the ORR was 51%, and the CR rate was 39%.

Responses were seen even in poor-risk subgroups, noted study investigator Jeremy Abramson, MD, of Massachusetts General Hospital Cancer Center in Boston.

“TRANSCEND NHL 001 is the first multicenter study of a CD19-directed CAR T-cell product with a fixed CD4 and CD8 composition to deliver potent and durable responses in high-risk subsets in DLBCL,” Dr Abramson said.

He presented data from the trial at the 2017 International Conference on Malignant Lymphoma (ICML) as abstract 128. The research was sponsored by Juno Therapeutics, the company developing JCAR017.

Patients

Dr Abramson presented data on 55 patients with relapsed/refractory non-Hodgkin lymphoma. Forty patients had DLBCL not otherwise specified, 14 had transformed DLBCL, and 1 had grade 3B follicular lymphoma. Fifteen patients had double- or triple-hit lymphoma.

The patients’ median age was 61 (range, 29-82), and 69% were male. Eighty-seven percent of patients (n=48) had an ECOG status of 0 to 1. Two patients had central nervous system involvement.

The patients had received a median of 3 prior lines of therapy (range, 1-11). Seventy-six percent of patients (n=42) were chemo-refractory, 7% (n=4) had received an allogeneic transplant, and 44% (n=24) had received an autologous transplant.

Treatment

Patients received 1 of 2 doses of JCAR017 after fludarabine/cyclophosphamide lymphodepletion.

Thirty patients received a single dose of JCAR017 at 5 x 10⁷ CAR cells (dose-level 1, single [DL1S]).

Six patients received 2 doses of 5 x 10⁷ CAR cells (dose-level 1, double [DL1D]).

Nineteen patients received a single dose of 1 x 10⁸ CAR cells (dose-level 2, single [DL2S]).

Safety

More than 90% of patients experienced a treatment-emergent adverse event (AE), and 60% had a treatment-related AE.

Treatment-emergent AEs occurring in more than 20% of patients included cytokine release syndrome (CRS), fatigue, nausea, constipation, decreased appetite, diarrhea, hypotension, neutropenia, anemia, and thrombocytopenia.

One patient had a grade 5 AE of diffuse alveolar damage that was thought to be related to fludarabine, cyclophosphamide, and JCAR017.

Another patient had a grade 5 AE of multiorgan failure that was considered unrelated to study treatment and due to disease progression.

The rate of grade 1/2 CRS was 33% (n=18), and the rate of grade 3/4 CRS was 2% (n=1). The rate of grade 1/2 neurotoxicity was 6% (n=3), and the rate of grade 3/4 neurotoxicity was 16% (n=9).

There were no deaths from CRS or neurotoxicity. The median time to onset of CRS was 5 days (range, 1-23), and the median time to onset of neurotoxicity was 11 days (range, 5-23).

“JCAR017 toxicities have, thus far, been relatively low and highly manageable at all dose levels tested, with a favorable safety profile that may enable outpatient administration,” Dr Abramson said.

Response

Fifty-four patients were evaluable for response. The ORR was 76%, and the CR rate was 52%. At 3 months of follow-up, the ORR was 51%, and the CR rate was 39%.

Dr Abramson noted that there was a dose-response relationship.

Overall, in the DL1S cohort, the ORR was 80%, and the CR rate was 53%. In the DL2S cohort, the ORR was 72%, and the CR rate was 50%. In the DL1D cohort, the ORR was 67%, and the CR rate was 50%.

At 3 months, in the DL1S cohort, the ORR was 46%, and the CR rate was 33%. In the DL2S cohort, the ORR was 64%, and the CR rate was 46%. In the DL1D cohort, the ORR and CR rate were both 50%.

Dr Abramson also noted that JCAR017 could produce a high response rate in poor-risk subgroups.

At 3 months, the ORR was 91% in patients who relapsed less than 12 months after transplant, 82% in patients with double- or triple-hit lymphoma, 48% in patients who had never achieved a CR, 47% in chemo-refractory patients, 31% in patients with primary refractory lymphoma, and 24% in patients with stable disease or progression after last chemotherapy.

Photo by Bill Branson

WASHINGTON, DC—In a head-to-head study comparing a single-dose oral antiemetic to a 3-day oral regimen, the single dose has shown itself to be non-inferior to the multi-day regimen in preventing chemotherapy-induced nausea and vomiting (CINV).

The investigators evaluated netupitant/palonosetron (NEPA) against aprepitant/granisetron (APR/GRAN) in patients on highly emetogenic chemotherapy.

They found the data suggest “that NEPA, in a single dose, had equivalent efficacy to a 3-day oral aprepitant/granisetron regimen,” according to the lead investigator and abstract presenter.

Li Zhang, MD, of Sun Yat-sen University Cancer Center in Guangzhou, China, presented the data at the Multinational Association of Supportive Care in Cancer/International Society of Oral Oncology (MASCC/ISOO) Congress (abstract PS049, pp S55 – S56).

NEPA is a combination of the selective NK₁RA netupitant (300 mg) and the clinically and pharmacologically active 5-HT₃RA, palonosetron (0.5 mg) for the prevention of CINV.

Oral palonosetron prevents nausea and vomiting during the acute phase of treatment.

Netupitant prevents nausea and vomiting during both the acute and delayed phase after cancer chemotherapy.

It is formulated into a single oral capsule.

Study design

The study was a phase 3 randomized, double-blind, double-dummy study conducted in 828 chemotherapy-naïve Asian patients receiving cisplatin-based highly emetogenic chemotherapy (HEC) agents.

Patients received a single oral dose of NEPA on day 1 or a 3-day oral APR/GRAN regimen (days 1-3).

All patients received oral dexamethasone on days 1-4.

The primary efficacy endpoint was complete response (CR), defined as no emesis or rescue medication needed during the overall (0-120 hour) phase.

The investigators defined non-inferiority to be the lower limit of the two-sided 95% confidence interval greater than the non-inferiority margin set at  ̶ 10%.

Secondary endpoints included no emesis, no rescue medication, and no significant nausea (NSN), defined as <25 mm on 100 mm visual analog scale (VAS).

Results

The baseline demographics were comparable between the NEPA (n=413) and APR/GRAN (n=416) arms: 71% of the patients were male, a mean age of 55 years, and a little more than half were ECOG performance status 1.

The most common cancer types were lung and head and neck cancer.

Patients had received a median cisplatin dose of 73 and 72 mg/m² in the NEPA and APR/GRAN arms, respectively.

Within the first 24 hours (acute phase), NEPA was non-inferior to APR/GRAN. NEPA had a CR rate of 84.5% and APR/GRAN had a CR rate of 87.0%. The risk difference between the 2 agents was -2.5% (range, -7.2%, 2.3%).

In the delayed phase (25-120 hours), NEPA had a CR rate of 77.9% and APR/GRAN, 74.3%. The risk difference was 3.7% (range, -2.1%, 9.5%).

Overall, for both phases, the CR rate was 73.8% for NEPA and 72.4% for APR/GRAN. The risk difference was 1.5% (range, -4.5%, 7.5%).

Dr Zhang pointed out that although the overall CR rates were similar, the daily rates of patients experiencing CINV remained in the range of 13% - 15% for patients in the APR/GRAN arm.

However, daily rates of CINV for patients receiving NEPA declined from 16% to 8% over the 5 days. The investigators believe this suggests a benefit for delayed CINV.

Regarding secondary endpoints, significantly more patients receiving NEPA did not require rescue medication in the delayed phase and overall than patients in the APR/GRAN arm.

Treatment-emergent adverse events (TEAEs) were comparable between the arms—58.1% in the NEPA arm and 57.5% in the APR/GRAN arm, as were serious TEAS, at 4.5% and 4.6% for NEPA and APR/GRAN, respectively. And the no emesis and no significant nausea rates favored NEPA.

The most common treatment-emergent adverse events occurring in 2% or more of the patients in both arms were constipation and hiccups.

Two serious treatment-related adverse events occurred in each arm, 1 leading to discontinuation in the NEPA arm.

The investigators concluded that NEPA, as a convenient capsule administered once per cycle, is at least as effective as the 3-day regimen of APR/GRAN in patients receiving HEC.

NEPA (Akynzeo®) is approved by the US Food and Drug Administration and marketed globally by Helsinn, Lugano, Switzerland, the sponsor of the trial.

For the full US prescribing information, see the package insert.

Photo by Bill Branson

WASHINGTON, DC—In a head-to-head study comparing a single-dose oral antiemetic to a 3-day oral regimen, the single dose has shown itself to be non-inferior to the multi-day regimen in preventing chemotherapy-induced nausea and vomiting (CINV).

The investigators evaluated netupitant/palonosetron (NEPA) against aprepitant/granisetron (APR/GRAN) in patients on highly emetogenic chemotherapy.

They found the data suggest “that NEPA, in a single dose, had equivalent efficacy to a 3-day oral aprepitant/granisetron regimen,” according to the lead investigator and abstract presenter.

Li Zhang, MD, of Sun Yat-sen University Cancer Center in Guangzhou, China, presented the data at the Multinational Association of Supportive Care in Cancer/International Society of Oral Oncology (MASCC/ISOO) Congress (abstract PS049, pp S55 – S56).

NEPA is a combination of the selective NK₁RA netupitant (300 mg) and the clinically and pharmacologically active 5-HT₃RA, palonosetron (0.5 mg) for the prevention of CINV.

Oral palonosetron prevents nausea and vomiting during the acute phase of treatment.

Netupitant prevents nausea and vomiting during both the acute and delayed phase after cancer chemotherapy.

It is formulated into a single oral capsule.

Study design

The study was a phase 3 randomized, double-blind, double-dummy study conducted in 828 chemotherapy-naïve Asian patients receiving cisplatin-based highly emetogenic chemotherapy (HEC) agents.

Patients received a single oral dose of NEPA on day 1 or a 3-day oral APR/GRAN regimen (days 1-3).

All patients received oral dexamethasone on days 1-4.

The primary efficacy endpoint was complete response (CR), defined as no emesis or rescue medication needed during the overall (0-120 hour) phase.

The investigators defined non-inferiority to be the lower limit of the two-sided 95% confidence interval greater than the non-inferiority margin set at  ̶ 10%.

Secondary endpoints included no emesis, no rescue medication, and no significant nausea (NSN), defined as <25 mm on 100 mm visual analog scale (VAS).

Results

The baseline demographics were comparable between the NEPA (n=413) and APR/GRAN (n=416) arms: 71% of the patients were male, a mean age of 55 years, and a little more than half were ECOG performance status 1.

The most common cancer types were lung and head and neck cancer.

Patients had received a median cisplatin dose of 73 and 72 mg/m² in the NEPA and APR/GRAN arms, respectively.

Within the first 24 hours (acute phase), NEPA was non-inferior to APR/GRAN. NEPA had a CR rate of 84.5% and APR/GRAN had a CR rate of 87.0%. The risk difference between the 2 agents was -2.5% (range, -7.2%, 2.3%).

In the delayed phase (25-120 hours), NEPA had a CR rate of 77.9% and APR/GRAN, 74.3%. The risk difference was 3.7% (range, -2.1%, 9.5%).

Overall, for both phases, the CR rate was 73.8% for NEPA and 72.4% for APR/GRAN. The risk difference was 1.5% (range, -4.5%, 7.5%).

Dr Zhang pointed out that although the overall CR rates were similar, the daily rates of patients experiencing CINV remained in the range of 13% - 15% for patients in the APR/GRAN arm.

However, daily rates of CINV for patients receiving NEPA declined from 16% to 8% over the 5 days. The investigators believe this suggests a benefit for delayed CINV.

Regarding secondary endpoints, significantly more patients receiving NEPA did not require rescue medication in the delayed phase and overall than patients in the APR/GRAN arm.

Treatment-emergent adverse events (TEAEs) were comparable between the arms—58.1% in the NEPA arm and 57.5% in the APR/GRAN arm, as were serious TEAS, at 4.5% and 4.6% for NEPA and APR/GRAN, respectively. And the no emesis and no significant nausea rates favored NEPA.

The most common treatment-emergent adverse events occurring in 2% or more of the patients in both arms were constipation and hiccups.

Two serious treatment-related adverse events occurred in each arm, 1 leading to discontinuation in the NEPA arm.

The investigators concluded that NEPA, as a convenient capsule administered once per cycle, is at least as effective as the 3-day regimen of APR/GRAN in patients receiving HEC.

NEPA (Akynzeo®) is approved by the US Food and Drug Administration and marketed globally by Helsinn, Lugano, Switzerland, the sponsor of the trial.

For the full US prescribing information, see the package insert.

Photo by Bill Branson

WASHINGTON, DC—In a head-to-head study comparing a single-dose oral antiemetic to a 3-day oral regimen, the single dose has shown itself to be non-inferior to the multi-day regimen in preventing chemotherapy-induced nausea and vomiting (CINV).

The investigators evaluated netupitant/palonosetron (NEPA) against aprepitant/granisetron (APR/GRAN) in patients on highly emetogenic chemotherapy.

They found the data suggest “that NEPA, in a single dose, had equivalent efficacy to a 3-day oral aprepitant/granisetron regimen,” according to the lead investigator and abstract presenter.

Li Zhang, MD, of Sun Yat-sen University Cancer Center in Guangzhou, China, presented the data at the Multinational Association of Supportive Care in Cancer/International Society of Oral Oncology (MASCC/ISOO) Congress (abstract PS049, pp S55 – S56).

NEPA is a combination of the selective NK₁RA netupitant (300 mg) and the clinically and pharmacologically active 5-HT₃RA, palonosetron (0.5 mg) for the prevention of CINV.

Oral palonosetron prevents nausea and vomiting during the acute phase of treatment.

Netupitant prevents nausea and vomiting during both the acute and delayed phase after cancer chemotherapy.

It is formulated into a single oral capsule.

Study design

The study was a phase 3 randomized, double-blind, double-dummy study conducted in 828 chemotherapy-naïve Asian patients receiving cisplatin-based highly emetogenic chemotherapy (HEC) agents.

Patients received a single oral dose of NEPA on day 1 or a 3-day oral APR/GRAN regimen (days 1-3).

All patients received oral dexamethasone on days 1-4.

The primary efficacy endpoint was complete response (CR), defined as no emesis or rescue medication needed during the overall (0-120 hour) phase.

The investigators defined non-inferiority to be the lower limit of the two-sided 95% confidence interval greater than the non-inferiority margin set at  ̶ 10%.

Secondary endpoints included no emesis, no rescue medication, and no significant nausea (NSN), defined as <25 mm on 100 mm visual analog scale (VAS).

Results

The baseline demographics were comparable between the NEPA (n=413) and APR/GRAN (n=416) arms: 71% of the patients were male, a mean age of 55 years, and a little more than half were ECOG performance status 1.

The most common cancer types were lung and head and neck cancer.

Patients had received a median cisplatin dose of 73 and 72 mg/m² in the NEPA and APR/GRAN arms, respectively.

Within the first 24 hours (acute phase), NEPA was non-inferior to APR/GRAN. NEPA had a CR rate of 84.5% and APR/GRAN had a CR rate of 87.0%. The risk difference between the 2 agents was -2.5% (range, -7.2%, 2.3%).

In the delayed phase (25-120 hours), NEPA had a CR rate of 77.9% and APR/GRAN, 74.3%. The risk difference was 3.7% (range, -2.1%, 9.5%).

Overall, for both phases, the CR rate was 73.8% for NEPA and 72.4% for APR/GRAN. The risk difference was 1.5% (range, -4.5%, 7.5%).

Dr Zhang pointed out that although the overall CR rates were similar, the daily rates of patients experiencing CINV remained in the range of 13% - 15% for patients in the APR/GRAN arm.

However, daily rates of CINV for patients receiving NEPA declined from 16% to 8% over the 5 days. The investigators believe this suggests a benefit for delayed CINV.

Regarding secondary endpoints, significantly more patients receiving NEPA did not require rescue medication in the delayed phase and overall than patients in the APR/GRAN arm.

Treatment-emergent adverse events (TEAEs) were comparable between the arms—58.1% in the NEPA arm and 57.5% in the APR/GRAN arm, as were serious TEAS, at 4.5% and 4.6% for NEPA and APR/GRAN, respectively. And the no emesis and no significant nausea rates favored NEPA.

The most common treatment-emergent adverse events occurring in 2% or more of the patients in both arms were constipation and hiccups.

Two serious treatment-related adverse events occurred in each arm, 1 leading to discontinuation in the NEPA arm.

The investigators concluded that NEPA, as a convenient capsule administered once per cycle, is at least as effective as the 3-day regimen of APR/GRAN in patients receiving HEC.

NEPA (Akynzeo®) is approved by the US Food and Drug Administration and marketed globally by Helsinn, Lugano, Switzerland, the sponsor of the trial.

For the full US prescribing information, see the package insert.