Active — Not RecruitingPhase 1

A Study of Belantamab Mafodotin Monotherapy in Multiple Myeloma Participants With Normal and Varying Degree of Impaired Renal Function

Greece, South Korea36 participantsStarted 2020-10-09

Plain-language summary

Belantamab mafodotin is an antibody-drug conjugate (ADC) containing humanized anti- B-cell maturation antigen (BCMA) monoclonal antibody (mAb). Renal impairment is a major complication of multiple myeloma (MM) and the majority of MM participants is either at risk or already has renal dysfunction at initial diagnosis. The purpose of this study is to assess the pharmacokinetics (PK), safety, and tolerability of belantamab mafodotin monotherapy in participants with RRMM, who have had at least 3 lines of prior treatment (or at least 2 lines of prior treatment if ineligible for autologous stem cell transplantation ) and have either normal or impaired renal functions. The study will consist of two parts: part 1 will include participants with normal/mildly impaired renal function and severe renal impairment and part 2 will include participants with end-stage renal disease (ESRD), where participants are either not undergoing or require hemodialysis. Participants will be administered belantamab mafodotin at a dose of 2.5 milligram per kilogram (mg/kg) intravenously once in three weeks (Q3W) dosing in Part 1. Based on the Part 1 Safety/Pharmacokinetic (PK) data, Part 2 participants will be administered the dose of either 2.5 mg/kg or 1.9 mg/kg (or other adjusted dose). Participants will be treated with belantamab mafodotin monotherapy until confirmed disease progression, death, unacceptable toxicity, withdrawal of consent, or end of study, whichever occurs first. This study will include a screening phase, treatment phase, follow-up phase and a post analysis continued treatment (PACT) phase . The total duration of the study is approximately up to 48 months.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Participants are capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the Informed Consent Form. * Male and/or female participants must be 18 years of age or older, at the time of signing the informed consent. In Republic of Korea, participants must be 19 years of age or older at the time of signing informed consent. * Eastern Cooperative Oncology Group (ECOG) performance status 0-2. * Participants with histologically or cytologically confirmed diagnosis of MM, as defined in International Myeloma Working Group criteria: 1. Has undergone autologous stem cell transplant (SCT) or is considered transplant-ineligible; 2. Has failed at least 2 prior lines of anti-myeloma treatments, including an immunomodulatory drug (example \[e.g.\], lenalidomide or pomalidomide) and a proteasome inhibitor (e.g., bortezomib, ixazomib or carfilzomib). In Republic of Korea, participants should also have relapsed or refractory disease after treatment with an anti-CD38 antibody, if accessible to patients, or other suitable local standard of care. * Participants have measurable disease with at least one of the following: Serum M-protein \>=0.5 grams per deciliter (g/dL) (\>=5 grams per liter \[g/L\]); Urine M-protein \>=200 milligrams (mg) per 24 hours (mg/24 h); and Serum free light chain (FLC) assay: Involved FLC level \>=10 milligrams per deciliter (mg/dL) (\>=100 milligrams per liter \[mg/L\]) and an abnormal se…

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Part 1: Area Under the Concentration-time Curve to Last Quantifiable Timepoint (AUC(0-tlast)) Following Administration of Belantamab Mafodotin (Antibody-drug Conjugate (ADC))

Timeframe: Pre-dose, end of infusion (EOI), start of infusion (SOI)+2hour (h), SOI+4h, SOI+8h and SOI+24h on Cycle(C) 1 Day(D) 1 and C3D1; Anytime on C1 D4, D8, D15, D22; Anytime on C3 D4, D8, D15, D22; Pre-dose on C2D1 and C4D1.

Part 1: Area Under the Concentration-time Curve During the Dosing Interval (AUC(0-tau)) Following Administration of Belantamab Mafodotin (ADC)

Part 1: Observed Plasma Concentration at the End of Infusion (C-EOI) Following Administration of Belantamab Mafodotin (ADC)

Timeframe: End of infusion on C1D1 and C3D1

Part 1: Maximum Observed Concentration (Cmax) Following Administration of Belantamab Mafodotin (ADC)

Part 1: Time to Reach Cmax (Tmax) Following Administration of Belantamab Mafodotin (ADC)

Trial details

NCT IDNCT04398745

SponsorGlaxoSmithKline

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2025-04-21

Results submitted2026-04-17

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