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A Multicenter, Open-Label, Randomized Phase III Study to Evaluate the Efficacy and Safety of the Combination of Belantamab Mafodotin, Bortezomib, and Dexamethasone (B-Vd) Compared with the Combination of Daratumumab, Bortezomib and Dexamethasone (D-Vd) in Participants with Relapsed/Refractory Multiple Myeloma (DREAMM 7)

Phase III study of belantamab mafodotin, bortezomib, and dexamethasone (B-Vd) versus daratumumab, bortezomib, and dexamethasone (D-Vd) in participants with relapsed/refractory multiple myeloma (DREAMM 7)

Ishibashi Hideyasu

GlaxoSmithKline K.K.

Akasaka Intercity AIR, 1-8-1 Akasaka, Minato-ku, Tokyo, Japan

jp.gskjrct@gsk.com

Ishibashi Hideyasu

GlaxoSmithKline K.K.

Akasaka Intercity AIR, 1-8-1 Akasaka, Minato-ku, Tokyo, Japan

+81-120-561-007

jp.gskjrct@gsk.com

Not Recruiting

May. 31, 2021

Interventional

randomized controlled trial

open(masking not used)

active control

parallel assignment

treatment purpose

- 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

- 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.

Both

Multiple Myeloma

Arm A:
Drug: Belantamab mafodotin
Humanized anti-B-cell maturation antigen (BCMA) antibody/drug conjugate
Drug: Bortezomib
Proteasome Inhibitor
Drug: Dexamethasone
Synthetic glucocorticoid with anti-tumor activity

Arm B:
Active Comparator: Daratumumab and Bortezomib plus Dexamethasone (Arm B)
Drug: Daratumumab
Anti-cluster of differentiation 38 [CD-38] monoclonal antibody
Drug: Bortezomib
Proteasome Inhibitor
Drug: Dexamethasone
Synthetic glucocorticoid with anti-tumor activity

Progression-free survival [ Time Frame: Up to an average of 34 months ]
Time from start of study treatment to the first documented disease progression or death due to any cause, whichever occurs first.

+81-584-81-3341

April. 23, 2021

No

United States/Australia/Belgium/Brazil/Canada/China/Czechia/France/Germany/Greece/Israel/Italy/Korea Republic/Mexico/Netherlands/New Zealand/Poland/Russian Federation/Spain/United Kingdom