New hope for Hard-to-Treat myeloma: drug cocktail trial launches
NCT ID NCT04126200
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a targeted drug called belantamab mafodotin, alone or with other cancer medicines, in people with multiple myeloma that has returned or stopped responding to prior treatments. About 208 adults will take part to see if these combinations are safe and effective. The goal is to find better ways to control this blood cancer.
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 (an antibody-drug conjugate) combined with other anti-cancer drugs
- What this could lead to
- If successful, this could offer new combination treatment options for patients with multiple myeloma that has stopped responding to standard therapies.
- What could go wrong
- This is an early-phase trial with a small number of participants, so results may not apply broadly. Combination therapies also carry higher risk of side effects.
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 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
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208 people
The number who actually took part.
- Started
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Oct 2019
- Expected to finish
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Mar 2027
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: Participant must be 18 years of age inclusive or older, at the time of signing the informed consent. * Participants must have histologically or cytologically confirmed diagnosis of Multiple Myeloma (MM), as defined by the IMWG. * Participants having at least 3 prior lines of prior anti-myeloma treatments including an immunomodulating agent (IMID) a proteasome inhibitor (PI) and an anti-CD38 monoclonal antibody. * Participants with a history of autologous stem cell transplant are eligible for study participation when, transplant was \>100 days prior to study enrolment and with no active infection(s). * Participants with Eastern Cooperative Oncology Group (ECOG) performance status of 0-1, unless ECOG less than equal to (\<=)2 is due solely to skeletal complications and/or skeletal pain due to MM. * Participants with measurable disease defined as at least one of the following: Serum M-protein greater than equal to (\>=)0.5 gram per deciliter (\>=5 gram per liter) or Urine M-protein \>=200 mg per 24 hours or Serum free light chain (FLC) assay: Involved FLC level \>=10 mg per deciliter (\>=100 mg per Liter) and an abnormal serum FLC ratio (\<0.26 or \>1.65). * Participants who have tested positive for Hepatitis B core antibody (HBcAb) can be enrolled if the following criteria are met: Serology result HBcAb+, Hepatitis B surface antigen (HBsAg)-; HBV DNA undetectable during screening. * Participants who are currently receiving physiological doses oral steroids (\<10 mg/day), inhaled steroids or ophthalmalogical steroids. Inclusion Criteria Specific to Sub-study 6 and7: * Participants with contraception requirements specific to Sub-study 6 and 7 respectively. * Participants with platelets value for Adequate Organ System Function is ≥75 × 10\^9/L. Exclusion Criteria: * Participants with current corneal epithelial disease except mild punctate keratopathy. * Participants with evidence of cardiovascular risk * Participants with known immediate or delayed hypersensitivity reaction or idiosyncrasy to drugs chemically related to belantamab mafodotin or any of the components of the study treatment. History of severe hypersensitivity to other mAb. * Participants with active infection requiring antibiotic, antiviral, or antifungal treatment. * Participants with other monoclonal antibodies within 30 days or systemic anti-myeloma therapy within \<14 days. * Participants with prior radiotherapy within 2 weeks of start of study therapy. * Participants with prior allogeneic transplant are prohibited. * Participants who have received prior Chimeric Antigen T cell therapy (CAR-T) therapy with lymphodepletion with chemotherapy within 3 months of screening. * Participants with any major surgery (other than bone-stabilizing surgery) within the last 30 days. * Participants with prior treatment with an investigational agent within 14 days or 5 half-lives of receiving the first dose of study drugs, whichever is shorter. * Participants with \>=grade 3 toxicity considered related to prior check-point inhibitors and that led to treatment discontinuation. * Participants who have received transfusion of blood products within 2 weeks before the first dose of study drug. * Participants must not receive live attenuated vaccines within 30 days prior to first dose of study treatment or whilst receiving belantamab mafodotin +- partner agent in any sub-study arm of the platform trial and for at least 70 days following last study treatment. * Participants with presence of active renal condition (infection, requirement for dialysis or any other condition that could affect participant's safety). Participants with isolated proteinuria resulting from MM. * Participants with Known HIV infection, unless the participant can meet all criteria: a) established anti-retroviral therapy for at least 4 weeks and HIV viral load\<400 copies/mL b) CD4+ T-cell (CD4+) counts \>= 350 cells/microliter (µL) c) No history of AIDS-defining opportunistic infections within the last 12 months in which case the participant would be eligible for CE Phase only. For patients receiving nirogacestat, HIV drugs that are strong CYP3A4 inhibitors are prohibited. HIV drugs that are moderate CYP3A4 inhibitors, while permitted, should be co-administered with caution and must be accompanied by nirogacestat dose modifications. Additional Exclusion Criteria for Sub-study 1 and Sub-study 2: * Participants with autoimmune disease (current or history) or syndrome that required systemic treatment within the past 2 years. * Exclusion for a recent (within the past 6 months) history of symptomatic pericarditis. Additional Exclusion Criteria for Sub-study 3, 6 and 7: * Participants with uncontrolled small and/or large intestinal disease. * Participants with uncontrolled skin disease. * Participants with any condition causing hypophosphatemia, hypokalemia or hypomagnesemia which is refractory to electrolyte replacement. * Participants with previous administration of a gamma secretase inhibitor. * Participants with concomitant administration of a strong CYP3A4 inhibitor or inducer. Additional Exclusion Criteria for Sub-study 4: * Participant has an active autoimmune disease that has required systemic treatment in the past 2 years (i.e. with use of disease-modifying agents, corticosteroids, or immunosuppressive drugs). * Participants who have received prior therapy with an anti-programmed death-1 (anti-PD-1), anti-PD-1-ligand-1 (anti-PD-L1), or anti-PD-1 ligand-2 (anti-PD-L2) agent. * Participant has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of study treatment. Use of inhaled steroids, local injection of steroids, and steroid eye drops are allowed. Additional Exclusion Criteria for Sub-study 5: * Participants with Severe hypersensitivity to Isatuximab-irfc or to any of its excipients. * Participants with prior treatment with other anti-CD38 monoclonal antibody within 6 months of the first dose of study drug treatment. * Participants with known intolerance or hypersensitivity to infused proteins products, sucrose, histidine, and polysorbate 80. Additional Exclusion Criteria for Sub-study 6 and 7: * Participants with active or history of venous thromboembolism within the past 3 months. * Participants with evidence of active mucosal or internal bleeding * Participants with contraindications to or are unwilling to undergo protocol-required anti-thrombotic prophylaxis or unable to tolerate antithrombolitic prophalaxis, Additional Exclusion Criteria for Sub-study 6: \- Participants who discontinued prior treatment with lenalidomide due to intolerable adverse events Additional Exclusion Criteria for Sub-study 7: \- Participants who discontinued prior treatment with pomalidomide due to intolerable adverse events
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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
Atlanta, Georgia, 30322, United States
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GSK Investigational Site
Indianapolis, Indiana, 46202, United States
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GSK Investigational Site
Boston, Massachusetts, 02215, United States
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GSK Investigational Site
Grand Rapids, Michigan, 49546, United States
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GSK Investigational Site
Madison, Wisconsin, 53792, United States
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GSK Investigational Site
Porto Alegre, 90110-270, Brazil
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GSK Investigational Site
Salvador, 41253-190, Brazil
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GSK Investigational Site
São Paulo, 04537-080, Brazil
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GSK Investigational Site
Vancouver, British Columbia, V5Z1M9, Canada
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GSK Investigational Site
Halifax, Nova Scotia, B3H 1V7, Canada
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GSK Investigational Site
Toronto, Ontario, M5G 2M9, Canada
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GSK Investigational Site
Lille, 59037, France
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GSK Investigational Site
Villejuif, 94805, France
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GSK Investigational Site
Frankfurt, 60590, Germany
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GSK Investigational Site
Hamburg, 20246, Germany
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GSK Investigational Site
Kiel, 24105, Germany
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GSK Investigational Site
Leipzig, 04103, Germany
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GSK Investigational Site
Athens, 11528, Greece
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GSK Investigational Site
Mexico City, 01330, Mexico
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GSK Investigational Site
Leeuwarden, 8934 AD, Netherlands
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GSK Investigational Site
Utrecht, 3584 CX, Netherlands
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GSK Investigational Site
Oslo, 0450, Norway
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GSK Investigational Site
Gdansk, 80-214, Poland
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GSK Investigational Site
Katowice, 40-519, Poland
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GSK Investigational Site
Lodz, 93-513, Poland
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GSK Investigational Site
Lublin, 20-081, Poland
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GSK Investigational Site
Incheon, 21565, South Korea
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GSK Investigational Site
Seoul, 03080, South Korea
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GSK Investigational Site
Seoul, 06351, South Korea
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GSK Investigational Site
Seoul, 06591, South Korea
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GSK Investigational Site
Badalona, 08916, Spain
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GSK Investigational Site
Madrid, 28027, Spain
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GSK Investigational Site
Madrid, 28040, Spain
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GSK Investigational Site
Madrid, 28041, Spain
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GSK Investigational Site
PamplonaNavarra, 31008, Spain
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GSK Investigational Site
Pozuelo de AlarcOn Madr, 28223, Spain
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GSK Investigational Site
Falun, SE-791 82, Sweden
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GSK Investigational Site
Stockholm, SE-141 86, Sweden
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?