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New hope for myeloma: targeted drug combo takes on Tough-to-Treat cancer
NCT ID NCT06868667
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a new combination of drugs—belantamab mafodotin plus bortezomib and dexamethasone—works better than a standard combination (daratumumab plus bortezomib and dexamethasone) for people in Japan with multiple myeloma that has come back or stopped responding to treatment. About 24 participants will be randomly assigned to one of the two combos. The main goal is to see how long the cancer stays under control.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- belantamab mafodotin (a targeted antibody-drug conjugate) combined with bortezomib and dexamethasone
- What this could lead to
- If this works, it could offer a new treatment option for people with multiple myeloma that has come back or stopped responding to earlier therapy.
- What could go wrong
- This is a small, early-phase study in Japan only, so results may not apply broadly. The experimental combo may not prove better than the standard daratumumab combo, and side effects like eye problems are possible.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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24 people
The number who actually took part.
- Started
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Jul 2021
- Expected to finish
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Jun 2028
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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GSK Investigational Site
Aomori, Japan
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GSK Investigational Site
Fukuoka, Japan
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GSK Investigational Site
Himeji, Japan
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GSK Investigational Site
Kamakura, Japan
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GSK Investigational Site
Kitakyushu, Japan
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GSK Investigational Site
Kochi, Japan
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GSK Investigational Site
Matsuyama, Japan
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GSK Investigational Site
Nagoya, Japan
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GSK Investigational Site
Okayama, Japan
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GSK Investigational Site
Osaka, Japan
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GSK Investigational Site
Ōgaki, Japan
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GSK Investigational Site
Shibukawa, Japan
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GSK Investigational Site
Sunto-gun, Japan
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GSK Investigational Site
Suwa, Japan
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GSK Investigational Site
Toyohashi, Japan
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GSK Investigational Site
Yokohama, Japan
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Cheap blood count ratios eyed as window into Myeloma's inflammatory grip
- Can a t-cell engager rescue myeloma that outsmarted CAR-T?
- Can myeloma treatment work without steroids?
- Double-Drug attack on Hard-to-Treat lymphomas
- Banking blood and bone marrow to decode plasma cell disorders
- Which scan sees hidden myeloma better: PET or MRI?