6.27.19 Oncology News Burst from FDA: Daratumumab

From the Society for Immunotherapy of Cancer

In cooperation with the Food and Drug Administration (FDA), and as a service to our members, SITC will periodically distribute information about newly approved therapies for cancer patients. This helps FDA inform oncologists and professionals in oncology-related fields of recent approvals in a timely manner. Included in the email from the FDA will be a link to the product label, which will provide the relevant clinical information on the indication, contraindications, dosing, and safety. In sending this information, SITC does not endorse any product or therapy and does not take any position on the safety or efficacy of the product or therapy described. The following is a message from the Director of the FDA Oncology Center of Excellence, Dr. Richard Pazdur:

On June 27, 2019, the Food and Drug Administration approved daratumumab (DARZALEX, Janssen Biotech, Inc.) in combination with lenalidomide and dexamethasone for patients with newly diagnosed multiple myeloma who are ineligible for autologous stem cell transplant.

Approval was based on MAIA (NCT02252172), an open-label, randomized (1:1), active-controlled phase 3 study, comparing dartumumab (16 mg/kg) in combination with lenalidomide and low-dose dexamethasone (DRd) to lenalidomide and low-dose dexamethasone (Rd), in 737 patients with newly diagnosed multiple myeloma who were ineligible for autologous stem cell transplant.

The trial demonstrated an improvement in progression-free survival (PFS) in the DRd arm compared with the Rd arm. The median PFS had not been reached in the DRd arm and was 31.9 months in the Rd arm (HR 0.56; 95% CI: 0.43, 0.73; p<0.0001). The median time to response was 1.05 months (range: 0.2 to 12.1 months) in the DRd group and 1.05 months (range: 0.3 to 15.3 months) in the Rd group. The median response duration had not been reached in the DRd group and was 34.7 months (95% CI: 30.8, not estimable) in the Rd group.

Daratumumab can cause severe and/or serious infusion reactions, including anaphylactic reactions. Approximately half of all patients in clinical trials experienced an infusion reaction. Patients should be pre‑medicated with antihistamines, antipyretics and corticosteroids. Frequently monitor patients during the entire infusion is recommended.

In newly diagnosed multiple myeloma patients who received daratumumab in combination with lenalidomide and dexamethasone, the most frequent (equal to or greater than 20%) adverse reactions were infusion reactions, diarrhea, constipation, nausea, peripheral edema, fatigue, back pain, asthenia, pyrexia, upper respiratory tract infection, bronchitis, pneumonia, decreased appetite, muscle spasms, peripheral sensory neuropathy, dyspnea and cough.

The recommended daratumumab dose is 16 mg/kg actual body weight. View full prescribing information for drugs used in combination and schedule.

This application used the Real-Time Oncology Review. FDA granted this application priority review. A description of FDA expedited programs is in the Guidance for Industry: Expedited Programs for Serious Conditions-Drugs and Biologics.

Project Facilitate: The Oncology Center of Excellence program for Expanded Access—For assistance with single-patient INDs for investigational oncology products, healthcare professionals may contact OCE’s Project Facilitate at 240-402-0004 or email OncProjectFacilitate@fda.hhs.gov.

Healthcare professionals should report all serious adverse events suspected to be associated with the use of any medicine and device to FDA’s MedWatch Reporting System or by calling 1-800-FDA-1088.