Evaluation of Efficacy and Safety of Belantamab Mafodotin, Bortezomib and Dexamethasone Versus Daratumumab, Bortezomib and Dexamethasone in Participants With Relapsed/Refractory Multiple Myeloma (DREAMM 7)

GlaxoSmithKline (GSK)

Status and phase: Active, not recruiting; Phase 3

Conditions: Multiple Myeloma

Treatments: Drug: Bortezomib; Drug: Daratumumab; Drug: Belantamab mafodotin; Drug: Dexamethasone

Study type: Interventional

Funder types: Industry

Identifiers

NCT04246047

207503

2018-003993-29 (EudraCT Number)

Details and patient eligibility

About

This is a Phase 3, randomized, open-label study designed to evaluate safety and efficacy of belantamab mafodotin in combination with bortezomib/dexamethasone (Arm A) versus daratumumab in combination with bortezomib/dexamethasone (Arm B) in the participants with relapsed recurrent multiple myeloma.

Enrollment: 494 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Confirmed diagnosis of multiple myeloma as defined by the International Myeloma Working Group (IMWG) criteria.

• Previously treated with at least 1 prior line of multiple myeloma (MM) therapy, and must have documented disease progression during or after their most recent therapy.

• Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2.

• Must have at least 1 aspect of measurable disease, defined as one of the following;

  1. Urine M-protein excretion >=200 mg per 24-hour, or
  2. Serum M-protein concentration >=0.5 grams per deciliter (g/dL), or
  3. Serum free light chain (FLC) assay: involved FLC level >=10 mg per dL (>=100 mg per liter) and an abnormal serum free light chain ratio (<0.26 or >1.65).

• All prior treatment-related toxicities (defined by National Cancer Institute Common Toxicity Criteria for Adverse Events [NCI-CTCAE] version 5.0) must be <=Grade 1 at the time of enrollment, except for alopecia.

• Adequate organ function

Exclusion criteria

• Intolerant to daratumumab.
• Refractory to daratumumab or any other anti-CD38 therapy (defined as progressive disease during treatment with anti-CD38 therapy, or within 60 days of completing that treatment).
• Intolerant to bortezomib, or refractory to bortezomib (defined as progressive disease during treatment with a bortezomib-containing regimen of 1.3 mg/m^2 twice weekly, or within 60 days of completing that treatment). Note: participants with progressive disease during treatment with a weekly bortezomib regimen are allowed.
• Ongoing Grade 2 or higher peripheral neuropathy or neuropathic pain.
• Prior treatment with anti-B-cell maturation antigen (anti-BCMA) therapy.
• Prior allogenic stem cell transplant.
• Any serious and/or unstable pre-existing medical, psychiatric disorder or other conditions, including renal, liver, cardiovascular, or certain prior malignancies.
• Corneal epithelial disease.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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494 participants in 2 patient groups

Belantamab mafodotin and Bortezomib plus Dexamethasone (Arm A)

Experimental group

Treatment:

Drug: Dexamethasone

Drug: Belantamab mafodotin

Drug: Bortezomib

Daratumumab and Bortezomib plus Dexamethasone (Arm B)

Active Comparator group

Treatment:

Drug: Dexamethasone

Drug: Daratumumab

Drug: Bortezomib