FDA approves drug for newly diagnosed MM

Capsules

The US Food and Drug Administration (FDA) has expanded the existing indication for lenalidomide (Revlimid)—in combination with dexamethasone—to include patients with newly diagnosed multiple myeloma (MM).

The FDA previously approved lenalidomide in combination with dexamethasone to treat MM patients who had received at least 1 prior therapy.

Lenalidomide is also FDA-approved to treat mantle cell lymphoma patients who have failed 2 prior therapies, including bortezomib.

And the drug is approved to treat patients with transfusion-dependent anemia due to low- or intermediate-1-risk myelodysplastic syndromes associated with 5q deletion, with or without additional cytogenetic abnormalities.

“The approval of Revlimid as an option for use in all patients with multiple myeloma represents a new paradigm in the management of this disease,” said Kenneth Anderson, MD, of Dana-Farber/Brigham and Women’s Cancer Center in Boston, Massachusetts.

“We now have clinical evidence demonstrating that starting and keeping newly diagnosed multiple myeloma patients on Revlimid significantly improves progression-free survival.”

The FDA’s latest approval of lenalidomide was based on safety and efficacy results from phase 3 studies, particularly the FIRST trial.

The FIRST trial

In this phase 3 trial, researchers enrolled 1623 patients who were newly diagnosed with MM and not eligible for stem cell transplant.

Patients were randomized to receive lenalidomide and dexamethasone (Rd) in 28-day cycles until disease progression (n=535), 18 cycles of lenalidomide and dexamethasone (Rd18) for 72 weeks (n=541), or melphalan, prednisone, and thalidomide (MPT) for 72 weeks (n=547).

Response rates were significantly better with continuous Rd (75%) and Rd18 (73%) than with MPT (62%, P<0.001 for both comparisons). Complete response rates were 15%, 14%, and 9%, respectively.

The median progression-free survival was 25.5 months with continuous Rd, 20.7 months with Rd18, and 21.2 months with MPT.

This resulted in a 28% reduction in the risk of progression or death for patients treated with continuous Rd compared with those treated with MPT (hazard ratio[HR]=0.72, P<0.001) and a 30% reduction compared with Rd18 (HR=0.70, P<0.001).

The pre-planned interim analysis of overall survival showed a 22% reduction in the risk of death for continuous Rd vs MPT (HR=0.78, P=0.02), but the difference did not cross the pre-specified superiority boundary (P<0.0096).

Adverse events reported in 20% or more of patients in the continuous Rd, Rd18, or MPT arms included diarrhea (45.5%, 38.5%, 16.5%), anemia (43.8%, 35.7%, 42.3%), neutropenia (35.0%, 33.0%, 60.6%), fatigue (32.5%, 32.8%, 28.5%), back pain (32.0%, 26.9%, 21.4%), insomnia (27.6%, 23.5%, 9.8%), asthenia (28.2%, 22.8%, 22.9%), rash (26.1%, 28.0%, 19.4%), decreased appetite (23.1%, 21.3%, 13.3%), cough (22.7%, 17.4%, 12.6%), pyrexia (21.4%, 18.9%, 14.0%), muscle spasms (20.5%, 18.9%, 11.3%) and abdominal pain (20.5%, 14.4%, 11.1%).

The most frequently reported grade 3/4 events in the continuous Rd arm (until disease progression) were neutropenia (27.8%), anemia (18.2%), thrombocytopenia (8.3%), pneumonia (11.3%), asthenia (7.7%), fatigue (7.3%), back pain (7%), hypokalemia (6.6%), rash (7.3%), cataract (5.8%), dyspnea (5.6%), deep vein thrombosis (5.6%), and hyperglycemia (5.3%).

The incidence of invasive second primary malignancies was 3% in the continuous Rd arm, 6% in the Rd18 arm, and 5% in the MPT arm. The overall incidence of solid tumors was identical in the continuous Rd and MPT arms (3%) and 5% in the Rd18 arm.

Capsules

The US Food and Drug Administration (FDA) has expanded the existing indication for lenalidomide (Revlimid)—in combination with dexamethasone—to include patients with newly diagnosed multiple myeloma (MM).

The FDA previously approved lenalidomide in combination with dexamethasone to treat MM patients who had received at least 1 prior therapy.

Lenalidomide is also FDA-approved to treat mantle cell lymphoma patients who have failed 2 prior therapies, including bortezomib.

And the drug is approved to treat patients with transfusion-dependent anemia due to low- or intermediate-1-risk myelodysplastic syndromes associated with 5q deletion, with or without additional cytogenetic abnormalities.

“The approval of Revlimid as an option for use in all patients with multiple myeloma represents a new paradigm in the management of this disease,” said Kenneth Anderson, MD, of Dana-Farber/Brigham and Women’s Cancer Center in Boston, Massachusetts.

“We now have clinical evidence demonstrating that starting and keeping newly diagnosed multiple myeloma patients on Revlimid significantly improves progression-free survival.”

The FDA’s latest approval of lenalidomide was based on safety and efficacy results from phase 3 studies, particularly the FIRST trial.

The FIRST trial

In this phase 3 trial, researchers enrolled 1623 patients who were newly diagnosed with MM and not eligible for stem cell transplant.

Patients were randomized to receive lenalidomide and dexamethasone (Rd) in 28-day cycles until disease progression (n=535), 18 cycles of lenalidomide and dexamethasone (Rd18) for 72 weeks (n=541), or melphalan, prednisone, and thalidomide (MPT) for 72 weeks (n=547).

Response rates were significantly better with continuous Rd (75%) and Rd18 (73%) than with MPT (62%, P<0.001 for both comparisons). Complete response rates were 15%, 14%, and 9%, respectively.

The median progression-free survival was 25.5 months with continuous Rd, 20.7 months with Rd18, and 21.2 months with MPT.

This resulted in a 28% reduction in the risk of progression or death for patients treated with continuous Rd compared with those treated with MPT (hazard ratio[HR]=0.72, P<0.001) and a 30% reduction compared with Rd18 (HR=0.70, P<0.001).

The pre-planned interim analysis of overall survival showed a 22% reduction in the risk of death for continuous Rd vs MPT (HR=0.78, P=0.02), but the difference did not cross the pre-specified superiority boundary (P<0.0096).

Adverse events reported in 20% or more of patients in the continuous Rd, Rd18, or MPT arms included diarrhea (45.5%, 38.5%, 16.5%), anemia (43.8%, 35.7%, 42.3%), neutropenia (35.0%, 33.0%, 60.6%), fatigue (32.5%, 32.8%, 28.5%), back pain (32.0%, 26.9%, 21.4%), insomnia (27.6%, 23.5%, 9.8%), asthenia (28.2%, 22.8%, 22.9%), rash (26.1%, 28.0%, 19.4%), decreased appetite (23.1%, 21.3%, 13.3%), cough (22.7%, 17.4%, 12.6%), pyrexia (21.4%, 18.9%, 14.0%), muscle spasms (20.5%, 18.9%, 11.3%) and abdominal pain (20.5%, 14.4%, 11.1%).

The most frequently reported grade 3/4 events in the continuous Rd arm (until disease progression) were neutropenia (27.8%), anemia (18.2%), thrombocytopenia (8.3%), pneumonia (11.3%), asthenia (7.7%), fatigue (7.3%), back pain (7%), hypokalemia (6.6%), rash (7.3%), cataract (5.8%), dyspnea (5.6%), deep vein thrombosis (5.6%), and hyperglycemia (5.3%).

The incidence of invasive second primary malignancies was 3% in the continuous Rd arm, 6% in the Rd18 arm, and 5% in the MPT arm. The overall incidence of solid tumors was identical in the continuous Rd and MPT arms (3%) and 5% in the Rd18 arm.

Capsules

The US Food and Drug Administration (FDA) has expanded the existing indication for lenalidomide (Revlimid)—in combination with dexamethasone—to include patients with newly diagnosed multiple myeloma (MM).

The FDA previously approved lenalidomide in combination with dexamethasone to treat MM patients who had received at least 1 prior therapy.

Lenalidomide is also FDA-approved to treat mantle cell lymphoma patients who have failed 2 prior therapies, including bortezomib.

And the drug is approved to treat patients with transfusion-dependent anemia due to low- or intermediate-1-risk myelodysplastic syndromes associated with 5q deletion, with or without additional cytogenetic abnormalities.

“The approval of Revlimid as an option for use in all patients with multiple myeloma represents a new paradigm in the management of this disease,” said Kenneth Anderson, MD, of Dana-Farber/Brigham and Women’s Cancer Center in Boston, Massachusetts.

“We now have clinical evidence demonstrating that starting and keeping newly diagnosed multiple myeloma patients on Revlimid significantly improves progression-free survival.”

The FDA’s latest approval of lenalidomide was based on safety and efficacy results from phase 3 studies, particularly the FIRST trial.

The FIRST trial

In this phase 3 trial, researchers enrolled 1623 patients who were newly diagnosed with MM and not eligible for stem cell transplant.

Patients were randomized to receive lenalidomide and dexamethasone (Rd) in 28-day cycles until disease progression (n=535), 18 cycles of lenalidomide and dexamethasone (Rd18) for 72 weeks (n=541), or melphalan, prednisone, and thalidomide (MPT) for 72 weeks (n=547).

Response rates were significantly better with continuous Rd (75%) and Rd18 (73%) than with MPT (62%, P<0.001 for both comparisons). Complete response rates were 15%, 14%, and 9%, respectively.

The median progression-free survival was 25.5 months with continuous Rd, 20.7 months with Rd18, and 21.2 months with MPT.

This resulted in a 28% reduction in the risk of progression or death for patients treated with continuous Rd compared with those treated with MPT (hazard ratio[HR]=0.72, P<0.001) and a 30% reduction compared with Rd18 (HR=0.70, P<0.001).

The pre-planned interim analysis of overall survival showed a 22% reduction in the risk of death for continuous Rd vs MPT (HR=0.78, P=0.02), but the difference did not cross the pre-specified superiority boundary (P<0.0096).

Adverse events reported in 20% or more of patients in the continuous Rd, Rd18, or MPT arms included diarrhea (45.5%, 38.5%, 16.5%), anemia (43.8%, 35.7%, 42.3%), neutropenia (35.0%, 33.0%, 60.6%), fatigue (32.5%, 32.8%, 28.5%), back pain (32.0%, 26.9%, 21.4%), insomnia (27.6%, 23.5%, 9.8%), asthenia (28.2%, 22.8%, 22.9%), rash (26.1%, 28.0%, 19.4%), decreased appetite (23.1%, 21.3%, 13.3%), cough (22.7%, 17.4%, 12.6%), pyrexia (21.4%, 18.9%, 14.0%), muscle spasms (20.5%, 18.9%, 11.3%) and abdominal pain (20.5%, 14.4%, 11.1%).

The most frequently reported grade 3/4 events in the continuous Rd arm (until disease progression) were neutropenia (27.8%), anemia (18.2%), thrombocytopenia (8.3%), pneumonia (11.3%), asthenia (7.7%), fatigue (7.3%), back pain (7%), hypokalemia (6.6%), rash (7.3%), cataract (5.8%), dyspnea (5.6%), deep vein thrombosis (5.6%), and hyperglycemia (5.3%).

The incidence of invasive second primary malignancies was 3% in the continuous Rd arm, 6% in the Rd18 arm, and 5% in the MPT arm. The overall incidence of solid tumors was identical in the continuous Rd and MPT arms (3%) and 5% in the Rd18 arm.