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Phase II

A Study of Daratumumab-Based Therapies in Participants With Amyloid Light Chain (AL) Amyloidosis

  • Study HIC#:2000034301
  • Last Updated:04/05/2024

The purpose of this study is to characterize cardiac safety of Daratumumab, Cyclophosphamide, Bortezomib, and Dexamethasone (D-VCd) treatment regimens (Arm A: immediate daratumumab + VCd treatment and Arm B: daratumumab + deferred VCd) in newly diagnosed systemic amyloid light chain (AL) amyloidosis with cardiac involvement and to identify potential mitigation strategies for cardiac toxicity (cohort 1); to characterize the pharmacokinetics of subcutaneous (SC) daratumumab, among racial and ethnic minorities, including Black or African American, with newly diagnosed AL amyloidosis treated with D-VCd (cohort 2).

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    For more information about this study, including how to volunteer, contact:

    Kylie Boyhen

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    Eligibility Criteria

    Inclusion Criteria

    • Cohort 1: Cardiac involvement (amyloid light chain [AL] amyloidosis Mayo Cardiac Stage II and Stage IIIa) with or without other organ(s) involved; Cohort 2: One or more organs impacted by systemic AL amyloidosis according to consensus guidelines
    • Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0, 1 or 2
    • A female participant of childbearing potential must have a negative serum or urine test at screening and within 72 hours of the first dose of study treatment and must agree to further serum or urine pregnancy tests during the study
    • A male participant must agree not to donate sperm for the purpose of reproduction during the study and for a minimum of 6 months after receiving the last dose of cyclophosphamide or 100 days after discontinuation of daratumumab, whichever is longer
    • Cohort 2 only: self-identified racial and ethnic minorities, including Black or African American

    Exclusion Criteria

    • Prior therapy for systemic AL amyloidosis or multiple myeloma including medications that target cluster of differentiation 38 (CD38), with the exception of 160 milligrams(mg) dexamethasone or equivalent corticosteroid maximum exposure prior to randomization/enrollment
    • Previous or current diagnosis of symptomatic multiple myeloma per International Myeloma Working Group (IMWG) Criteria
    • Participant received any of the following therapies:
    • treatment with an investigational drug or used an invasive investigational medical device within 14 days or at least 5 half-lives, whichever is less;
    • vaccinated with an investigational vaccine (except for COVID-19) live, attenuated or replicating viral vector vaccines less than (<) 4 weeks prior to randomization/enrollment. Participants who are taking strong Cytochrome P450 3A4(CYP3A4) inducers must discontinue their use at least 5 half-lives prior to the first dose of bortezomib
    • Stem cell transplantation -Planned stem cell transplant during the first 9 cycles of protocol therapy are excluded. Stem cell collection during the first 9 cycles of protocol therapy is permitted
    • Grade 2 sensory or Grade 1 painful peripheral neuropathy

    Principal Investigator

    Sub-Investigators

    For more information about this study, including how to volunteer, contact: