Daratumumab Retreatment in Participants With Multiple Myeloma Who Have Been Previously Treated With Daratumumab Intravenous (Dara-IV)

Official Title

A Phase 2 Study of Daratumumab Subcutaneous (Dara-SC) Administration in Combination With Carfilzomib and Dexamethasone (DKd) Compared With Carfilzomib and Dexamethasone (Kd) in Participants With Multiple Myeloma Who Have Been Previously Treated With Daratumumab Intravenous (Dara-IV) to Evaluate Daratumumab Retreatment

Summary:

The purpose of this study is to compare the efficacy (rate of very good partial response [VGPR] or better as best response as defined by the International Myeloma Working Group [IMWG] criteria) of daratumumab subcutaneous (Dara-SC) in combination with carfilzomib and dexamethasone (Kd) with the efficacy of Kd in participants with relapsed refractory multiple myeloma who were previously exposed to daratumumab intravenous (Dara-IV) to evaluate daratumumab retreatment.

Trial Description

Primary Outcome:

  • Percentage of Participants Achieving Very Good Partial Response (VGPR) or Better Response
Secondary Outcome:
  • Overall Response Rate (ORR)
  • Percentage of Participants Achieving Complete Response (CR) or Stringent Complete Response (sCR)
  • Progression Free Survival (PFS)
  • Overall Survival (OS)
  • Percentage of Participants With Negative Minimal Residual Disease (MRD)
  • Time to Next Treatment
  • Serum Concentrations of Daratumumab
  • Number of Participants with Anti-Daratumumab Antibodies
  • Number of Participants with Anti-recombinant Human Hyaluronidase (rHuPH20) Antibodies
For relapsed or refractory multiple myeloma, the treatment is determined on an individual basis. Common standard of care regimens use either a proteasome inhibitor (PI) or an immunomodulatory agent (IMiD) in combination with dexamethasone with or without a monoclonal antibody (mAb) such as daratumumab. After relapse from PIs or IMiDs, patients are often retreated with drugs that have same mechanism of action to which they have been sensitive. The disease becomes refractory and all effective treatment options are exhausted. Daratumumab is a human IgG1 mAb that binds with high affinity to unique epitope on cluster of differentiation 38 (CD38) and attacks tumour cells that overexpress CD38. Study is to determine the efficacy of Dara-SC in combination with carfilzomib and dexamethasone (DKd) in adult participants with relapsed refractory MM who had 1 or 2 prior line(s) of treatment including a line containing Dara-IV to evaluate daratumumab retreatment. The MM treatment is determined on an individual basis where patient's age, prior therapy, bone marrow function, co-morbidities, patient preference and time to relapse are considered. Common standard of care regimens use either PI or an IMiD in combination with dexamethasone with or without a mAb. It is a targeted immunotherapy that attacks tumour cells that overexpress CD38, a transmembrane glycoprotein, in a variety of hematological malignancies including multiple myeloma. The study will be conducted in 3 phases: Screening (28 days), Treatment, and Follow-Up. Assessments like chest X-ray, spirometry test, electrocardiogram (ECG), will be performed during Screening phase. During the Treatment Phase, participants will be randomized to receive Kd or DKd. Efficacy assessments like bone marrow examination will be performed. Follow-up will continue until the end of study.

View this trial on ClinicalTrials.gov

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Resources

Canadian Cancer Society

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