A Study to Learn About the Study Medicine (Elranatamab) in Participants With Multiple Myeloma That Has Come Back After Responding to Treatment or Has Not Responded to Treatment

NCT ID: NCT05014412

Last Updated: 2025-10-15

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

86 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-10-07

Study Completion Date

2025-10-30

Brief Summary

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The purpose of the study (Part 1 and Part 2) is to evaluate the safety of a step-up dosing approach (starting with low doses followed by higher doses) of the study medicine (elranatamab) in participants with multiple myeloma that has come back after responding to treatment or has not responded to treatment (relapsed/refractory multiple myeloma). This study will also look at the safety and efficacy of different doses of elranatamab, as well as different intervals between doses.

Participants in the study will receive elranatamab as an injection under the skin at the study clinic. After the initial step-up doses, participants will start receiving one dose every week. The frequency of clinic visits for injections may then decrease over time. Participation will be at least two years.

Detailed Description

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The purpose of the study (Part 1 and Part 2) of the study is to evaluate the safety (in particular the rate of Grade ≥ 2 CRS) of a step-up priming dose regimen of elranatamab in participants with relapsed/refractory multiple myeloma. In addition, this study will assess the safety of different dosing regimens of elranatamab and if it can provide a clinical benefit in those participants. Elranatamab is a bispecific antibody: binding of elranatamab to CD3-expressing T-cells and BCMA-expressing multiple myeloma cells causes targeted T-cell-mediated cytotoxicity.

Conditions

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Multiple Myeloma

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Part 1

Evaluation of step-up priming dosing

Group Type EXPERIMENTAL

Elranatamab

Intervention Type DRUG

BCMA-CD3 bispecific antibody

Part 2A

Dose determination

Group Type EXPERIMENTAL

Elranatamab

Intervention Type DRUG

BCMA-CD3 bispecific antibody

Part 2B

Dose expansion

Group Type EXPERIMENTAL

Elranatamab

Intervention Type DRUG

BCMA-CD3 bispecific antibody

Part 2C

To explore higher dose intensity

Group Type EXPERIMENTAL

Elranatamab

Intervention Type DRUG

BCMA-CD3 bispecific antibody

Interventions

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Elranatamab

BCMA-CD3 bispecific antibody

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of multiple myeloma (IMWG criteria, Rajkumar et al, 2014)
* Measurable disease, as defined by at least 1 of the following:

1. Serum M-protein \>0.5 g/dL by SPEP
2. Urinary M-protein excretion \>200 mg/24 hours by UPEP
3. Serum immunoglobulin FLC≥10 mg/dL (≥100 mg/L) AND abnormal serum immunoglobulin kappa to lambda FLC ratio
* Refractory to at least one IMiD
* Refractory to at least one PI
* Refractory to at least one anti-CD38 antibody
* Relapsed/refractory to last anti-myeloma regimen
* ECOG performance status ≤1
* Resolved acute effects of any prior therapy to baseline severity or CTCAE Grade ≤1
* Not pregnant and willing to use contraception

Exclusion Criteria

* Smoldering multiple myeloma
* Active Plasma cell leukemia
* POEMS syndrome
* Amyloidosis
* Waldenström's macroglobulinemia
* Known active CNS involvement or clinical signs of myelomatous meningeal involvement
* Stem cell transplant within 12 weeks prior to enrollment or active GVHD
* Active HBV, HCV, SARS-CoV2, HIV, or any active, uncontrolled bacterial, fungal, or viral infection
* Any other active malignancy within 3 years prior to enrollment, except for adequately treated basal cell or squamous cell skin cancer, or carcinoma in situ or Stage 0/1 malignancy with minimal risk of recurrence per investigator.
* Previous treatment with an anti-BCMA bispecific antibody or CAR-T cell therapy.
* Live attenuated vaccine within 4 weeks of the first dose
* Previous administration with an investigational drug within 30 days or 5 half-lives preceding the first dose of study intervention used in this study (whichever is longer)
* Known or suspected hypersensitivity to the study intervention, or any of its excipients
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Pfizer

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Pfizer CT.gov Call Center

Role: STUDY_DIRECTOR

Pfizer

Locations

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Mayo Clinic Hospital

Phoenix, Arizona, United States

Site Status

Mayo Clinic

Scottsdale, Arizona, United States

Site Status

Poudre Valley Hospital

Fort Collins, Colorado, United States

Site Status

Cancer Care & Hematology - Fort Collins

Fort Collins, Colorado, United States

Site Status

Poudre Valley Health System (PVHS)

Fort Collins, Colorado, United States

Site Status

UCHealth Cancer Care & Hematology - Greeley

Greeley, Colorado, United States

Site Status

UCHealth Cancer Care & Hematology - Loveland

Loveland, Colorado, United States

Site Status

UF Health Shands Cancer Hospital

Gainesville, Florida, United States

Site Status

UF Health Shands Hospital Pharmacy Investigational Drug Service - Main

Gainesville, Florida, United States

Site Status

UF Health Shands Hospital

Gainesville, Florida, United States

Site Status

University of Florida

Gainesville, Florida, United States

Site Status

East Jefferson General Hospital Bone Marrow Transplant Clinic

Metairie, Louisiana, United States

Site Status

East Jefferson General Hospital

Metairie, Louisiana, United States

Site Status

Tulane University

New Orleans, Louisiana, United States

Site Status

The Regents of the University of Michigan

Ann Arbor, Michigan, United States

Site Status

University of Michigan

Ann Arbor, Michigan, United States

Site Status

Henry Ford Hospital

Detroit, Michigan, United States

Site Status

MSK Basking Ridge

Basking Ridge, New Jersey, United States

Site Status

MSK Monmouth

Middletown, New Jersey, United States

Site Status

MSK Bergen

Montvale, New Jersey, United States

Site Status

MSK Commack

Commack, New York, United States

Site Status

MSK Westchester

Harrison, New York, United States

Site Status

Memorial Sloan Kettering Cancer Center - Investigational Drug Service Pharmacy

Long Island City, New York, United States

Site Status

Memorial Sloan Kettering Cancer Center - David H. Koch Center for Cancer Care (74th Street).

New York, New York, United States

Site Status

Memorial Sloan Kettering Cancer Center

New York, New York, United States

Site Status

MSK Nassau

Uniondale, New York, United States

Site Status

Cleveland Clinic Taussig Cancer Institute

Cleveland, Ohio, United States

Site Status

Fox Chase Cancer Center

Philadelphia, Pennsylvania, United States

Site Status

St. David's South Austin Medical Center

Austin, Texas, United States

Site Status

Texas Oncology - South Austin

Austin, Texas, United States

Site Status

Blood Cancer and Stem Cell Transplant Clinic

San Antonio, Texas, United States

Site Status

Methodist Healthcare System of San Antonio dba Methodist Hospital

San Antonio, Texas, United States

Site Status

Methodist Hospital Investigational Pharmacy

San Antonio, Texas, United States

Site Status

Methodist Plaza Clinical Trials Office

San Antonio, Texas, United States

Site Status

Huntsman Cancer Institute, University of Utah

Salt Lake City, Utah, United States

Site Status

University of Utah

Salt Lake City, Utah, United States

Site Status

Nagoya City University Hospital

Nagoya, Aichi-ken, Japan

Site Status

Kobe City Medical Center General Hospital

Kobe, Hyōgo, Japan

Site Status

National Cancer Center Hospital

Chuo-ku, Tokyo, Japan

Site Status

Japanese Red Cross Medical Center

Shibuya-ku, Tokyo, Japan

Site Status

University Hospital,Kyoto Prefectural University of Medicine

Kyoto, , Japan

Site Status

China Medical University Hospital

Taichung, , Taiwan

Site Status

National Taiwan University Hospital

Taipei, , Taiwan

Site Status

Taipei Veterans General Hospital

Taipei, , Taiwan

Site Status

University Hospitals Birmingham NHS Foundation Trust

Birmingham, , United Kingdom

Site Status

University College London Hospitals NHS Foundation Trust

London, , United Kingdom

Site Status

Guy's and St Thomas' NHS Foundation Trust

London, , United Kingdom

Site Status

King's College Hospital NHS Foundation Trust

London, , United Kingdom

Site Status

The Royal Marsden NHS Foundation Trust

London, , United Kingdom

Site Status

University College London Hospitals NHS Foundation Trust NIHR

London, , United Kingdom

Site Status

The Royal Marsden NHS Foundation Trust

Surrey, , United Kingdom

Site Status

Countries

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United States Japan Taiwan United Kingdom

References

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Lon HK, Hibma J, Jiang S, Sullivan S, Vandendries E, Skoura A, Wang D, Elmeliegy M. Population Exposure-Response Efficacy Analysis of Elranatamab (PF-06863135) in Patients with Multiple Myeloma. Target Oncol. 2025 Sep;20(5):803-819. doi: 10.1007/s11523-025-01168-y. Epub 2025 Aug 18.

Reference Type DERIVED
PMID: 40826257 (View on PubMed)

Elmeliegy M, Viqueira A, Vandendries E, Hickman A, Conte U, Irby D, Hibma J, Lon HK, Piscitelli J, Soltantabar P, Skoura A, Jiang S, Wang D. Dose Optimization of Elranatamab to Mitigate the Risk of Cytokine Release Syndrome in Patients with Multiple Myeloma. Target Oncol. 2025 Mar;20(2):349-359. doi: 10.1007/s11523-025-01134-8. Epub 2025 Feb 25.

Reference Type DERIVED
PMID: 40000533 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Related Links

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https://pmiform.com/clinical-trial-info-request?StudyID=C1071009

To obtain contact information for a study center near you, click here.

Other Identifiers

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MagnetisMM-9

Identifier Type: OTHER

Identifier Source: secondary_id

C1071009

Identifier Type: -

Identifier Source: org_study_id

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