A Study Evaluating the Safety and Pharmacokinetics of Escalating Doses of Forimtamig in Participants With Relapsed or Refractory Multiple Myeloma (r/r MM)

NCT ID: NCT04557150

Last Updated: 2025-12-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE1

Total Enrollment

225 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-11-11

Study Completion Date

2026-02-20

Brief Summary

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This is a first-in-human, open-label, uncontrolled, multi-center, monotherapy, dose-escalation and dose expansion study. Forimtamig will be administered to participants with r/r MM for whom no standard-of-care treatment exists or who are intolerant to those established therapies. The study consists of two parts: dose-escalation of forimtamig (Part 1) and a randomized dose expansion of forimtamig (Part 2).

Detailed Description

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Conditions

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Multiple Myeloma

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Part I: Dose Escalation

Participants will receive forimtamig as intravenous (IV) infusion and/or subcutaneous (SC) injection in a step-up dosing fashion.

Group Type EXPERIMENTAL

Forimtamig

Intervention Type DRUG

Forimtamig will be administered via IV/SC administration. The RP2Ds determined during Part I: Dose Escalation will be administered during Part II: Dose Expansion. Forimtamig will be administered as per the dosing schedule defined in Part I.

Part II: Dose Expansion

Dose Expansion cohorts with IV and/or SC administration, respectively, will be initiated at the Recommended Phase 2 Doses (RP2Ds) determined in Part I: Dose Escalation phase.

Group Type EXPERIMENTAL

Forimtamig

Intervention Type DRUG

Forimtamig will be administered via IV/SC administration. The RP2Ds determined during Part I: Dose Escalation will be administered during Part II: Dose Expansion. Forimtamig will be administered as per the dosing schedule defined in Part I.

Interventions

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Forimtamig

Forimtamig will be administered via IV/SC administration. The RP2Ds determined during Part I: Dose Escalation will be administered during Part II: Dose Expansion. Forimtamig will be administered as per the dosing schedule defined in Part I.

Intervention Type DRUG

Other Intervention Names

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RO7425781

Eligibility Criteria

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Inclusion Criteria

* Previously diagnosed with Multiple Myeloma (MM) based on standard criteria.
* Dose Escalation Phase and Dose Expansion Phase: Participants with r/r MM who have previously received therapy with an Immunomodulatory drug (IMiD) and Proteasome Inhibitor (PI) and are intolerant to or have no other option for standard-of-care treatment according to the Investigator.
* Life expectancy of at least 12 weeks.
* Agreement to provide protocol-specific biopsy material.
* AEs from prior anti-cancer therapy resolved to Grade =\<1.
* Measurable disease.
* For female participants of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse), use contraceptive measures and refrain from donating eggs.
* For male participants: agreement to remain abstinent (refrain from heterosexual intercourse), use contraceptive measures and refrain from donating sperm.

Exclusion Criteria

* Inability to comply with protocol-mandated hospitalization and activities restrictions.
* Pregnant or breastfeeding or intending to become pregnant during the study or within 3 months after last dose of study drug.
* Prior use of any monoclonal antibody, radioimmunoconjugate, or antibody-drug conjugate for MM treatment within 2 weeks before first forimtamig administration.
* Prior treatment with systemic immunotherapeutic agents within 2 weeks before first forimtamig administration.
* Treatment-related, immune-mediated AEs associated with prior immunotherapeutic agents.
* Treatment with radiotherapy, any chemotherapeutic agent, or treatment with any other anti-cancer agent (investigational or otherwise) within 2 weeks, prior to first forimtamig administration. Limited field palliative radiotherapy for bone pain or for soft tissue lesions is allowed.
* Autologous or allogeneic stem cell transplantation (SCT) within 100 days prior to first forimtamig infusion and/or signs of chronic graft versus host disease or ongoing immunosuppressive medication.
* Prior solid organ transplantation.
* Active auto-immune disease or flare within 6 months prior to start of study treatment
* Any medical condition or abnormality in clinical laboratory tests that, in the Investigator's or Medical Monitor's judgment, precludes the participant's safe participation in and completion of the study, or which could affect compliance with the protocol or interpretation of results.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hoffmann-La Roche

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Clinical Trials

Role: STUDY_DIRECTOR

Hoffmann-La Roche

Locations

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Peter MacCallum Cancer Center

Melbourne, Victoria, Australia

Site Status

UZ Gent

Ghent, , Belgium

Site Status

Rigshospitalet

København Ø, , Denmark

Site Status

Odense Universitetshospital

Odense C, , Denmark

Site Status

CHRU Lille - Hôpital Claude Huriez

Lille, , France

Site Status

CHU NANTES - Hôtel Dieu

Nantes, , France

Site Status

Hopital De Haut Leveque

Pessac, , France

Site Status

IRCCS Istituto Nazionale dei Tumori di Napoli - Pascale Ematologia Oncologica

Napoli, Campania, Italy

Site Status

Policlinico S.Orsola-Malpighi

Bologna, Emilia-Romagna, Italy

Site Status

Fond. IRCCS Istituto Nazionale Tumori

Milan, Lombardy, Italy

Site Status

Instituto Clinico Humanitas

Rozzano, Lombardy, Italy

Site Status

New Zealand Clinical Research - Auckland

Auckland, , New Zealand

Site Status

Seoul National University Hospital

Seoul, , South Korea

Site Status

Samsung Medical Center

Seoul, , South Korea

Site Status

Seoul St Mary's Hospital

Seoul, , South Korea

Site Status

Hospital Universitario Marques de Valdecilla

Santander, Cantabria, Spain

Site Status

Clinica Universitaria de Navarra

Pamplona, Navarre, Spain

Site Status

Hospital Clinico Universitario de Salamanca

Salamanca, , Spain

Site Status

St James University Hospital

Leeds, , United Kingdom

Site Status

University College London Hospitals NHS Foundation Trust

London, , United Kingdom

Site Status

Countries

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Brazil United States Australia Belgium Denmark France Italy New Zealand South Korea Spain United Kingdom

References

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Eckmann J, Fauti T, Biehl M, Zabaleta A, Blanco L, Lelios I, Gottwald S, Rae R, Lechner S, Bayer C, Dekempe Q, Osl F, Carrie N, Kassem S, Lorenz S, Christopeit T, Carpy A, Bujotzek A, Broske AM, Dekhtiarenko I, Attig J, Kunz L, Cremasco F, Adelfio R, Fertig G, Dengl S, Gassner C, Bormann F, Kirstenpfad C, Kraft T, Diggelmann S, Knobloch M, Hage C, Feddersen R, Heidkamp G, Poschinger T, Mayoux M, Bernasconi L, Prosper F, Dumontet C, Martinet L, Leclair S, Xu W, Paiva B, Klein C, Umana P. Forimtamig, a novel GPRC5D-targeting T-cell bispecific antibody with a 2+1 format, for the treatment of multiple myeloma. Blood. 2025 Jan 9;145(2):202-219. doi: 10.1182/blood.2024025987.

Reference Type DERIVED
PMID: 39476124 (View on PubMed)

Other Identifiers

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BP42233

Identifier Type: -

Identifier Source: org_study_id

2020-002012-46

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

2023-504571-25-00

Identifier Type: CTIS

Identifier Source: secondary_id