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Study of Intravenously (IV) Infused Etentamig in Combination With an Oral Cereblon E3 Ligase Modulatory Drug (CELMoD) Agent Assessing Adverse Events and Change in Disease Activity in Adult Participants With Relapsed or Refractory Multiple Myeloma

Phase 1/2 Study of Etentamig in Combination With a CELMoD Agent for the Treatment of Patients With Relapsed/Refractory Multiple Myeloma

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06896916
Enrollment
135
Registered
2025-03-26
Start date
2025-08-07
Completion date
2036-03-01
Last updated
2026-05-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Multiple Myeloma

Keywords

Multiple Myeloma, Cereblon E3 Ligase Modulatory Drug, CELMoD, Iberdomide, Etentamig, ABBV-383

Brief summary

Multiple myeloma (MM) is a plasma cell disease characterized by the growth of clonal plasma cells in the bone marrow. The purpose of this study is to assess the adverse events and change in disease activity of etentamig in combination with a cereblon E3 ligase modulatory drug (CELMoD) agent in adult participants with relapsed/refractory (R/R) multiple myeloma (MM). Adverse events and change in disease state will be assessed. Etentamig is an investigational drug being developed for the treatment of R/R MM. Study doctors put the participants in groups called treatment arms. Multiple doses of etentamig in combination with iberdomide will be explored. Each treatment arm receives a different dose of etentamig and iberdomide to determine a tolerable dose. Approximately 135 adult participants with R/R MM will be enrolled in the study in approximately 50 sites worldwide. In phase 1 participants will receive escalating intravenous (IV) etentamig in combination with oral iberdomide. In phase 2 participants will receive IV etentamig at one of two doses in combination with oral iberdomide, as part of the approximately 129 month study duration. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at an approved institution (hospital or clinic). The effect of the treatment will be frequently checked by medical assessments, blood tests, questionnaires and and monitoring of side effects.

Detailed description

B-cell maturation antigen (BCMA) chimeric antigen receptor T-cell (CAR-T) or BCMA antibody-drug conjugate (ADC) are allowed.

Interventions

Intravenous (IV) Infusion

DRUGIberdomide

Oral Capsule

Sponsors

AbbVie
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Eastern Cooperative Oncology Group (ECOG) performance of 0 or 1. * Must have confirmed diagnosis of Relapsed/Refractory Multiple Myeloma (RRMM) after the participant's last treatment, as outlined in the protocol. * All participants must have measurable diseases per central laboratory as outlined in protocol

Exclusion criteria

* Has received prior etentamig treatment. * Prior exposure to BCMA-targeted therapy as noted in the protocol. * Has received prior cereblon E3 ligase modulatory drug (CELMoD) (iberdomide or mezigdomide).

Design outcomes

Primary

MeasureTime frameDescription
Phase 1: Dose-Limiting Toxicities (DLT)s of Etentamig when given in Combination with Iberdomide in Participants with Relapsed/Refractory Multiple Myeloma (RRMM)Up to Approximately 56 DaysDLT events are defined as clinically significant adverse events or abnormal laboratory values assessed as unrelated to disease progression, underlying disease, intercurrent illness, or concomitant medications.
Number of Participants with Adverse Events (AE)sUp to Approximately 129 MonthsAn adverse event is defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have a causal relationship with this treatment.

Secondary

MeasureTime frameDescription
Partial Response (PR) Response Rate (RR)Up to 3 YearsPR is defined \>= 50% reduction of serum M-protein and reduction in 24-hour urinary M-protein by \>= 90% or to \< 200 mg per 24 hours, if the serum and urine M-protein are unmeasurable, a \>= 50% decrease in the difference between involved and uninvolved FLC levels is required in place of the M-protein criteria, if the serum and urine M-protein are unmeasurable, and serum free light assay is also unmeasurable, a \>= 50% reduction in plasma cells is required in place of M-protein, provided baseline bone marrow plasma cell percentage was \>= 30%, \>= 50% reduction in the size of soft tissue plasmacytomas is also required, if present at baseline.
Very Good Partial Response (VGPR) RRUp to 3 YearsVGPR is defined as serum and urine M-protein detectable by immunofixation but not on electrophoresis or \>= 90% reduction in serum M-protein plus urine M-protein \< 100 mg per 24 hours, for participants in whom the only measurable disease is by serum free light chains (FLC) levels, VGPR is defined as \>= 90% decrease in the difference between involved and uninvolved FLC levels.
Complete Response (CR) RRUp to 3 YearsCR is defined negative immunofixation on the serum and urine (regardless of whether disease at baseline was measurable on serum, urine, both, or neither), disappearance of any soft tissue plasmacytomas, \< 5% plasma cells in bone marrow, and for participants in whom the only measurable disease is by serum FLC levels, a normal FLC ratio is also required.
Stringent Complete Response (sCR) RRUp to 3 YearssCR is defined negative immunofixation on the serum and urine (regardless of whether disease at baseline was measurable on serum, urine, both, or neither), disappearance of any soft tissue plasmacytomas, \< 5% plasma cells in bone marrow, normal FLC ratio and absence of clonal cells in bone marrow by immunohistochemistry (kappa/lambda ratio \<= 4:1 or \>= 1:2 for kappa and lambda participants, respectively, after counting \>= 100 plasma cells).
Overall Response Rate (ORR)Up to 3 YearsORR (PR + VGPR + CR + sCR) will be defined as the proportion of participants who achieved a PR or better.
Progression-Free Survival (PFS)Up to 3 YearsPFS is defined as the number of days from the date of first dose to the date of earliest disease progression or death.
Duration of Response (DOR)Up to 3 YearsDOR is defined as the number of days from the date of first response (sCR, CR, VGPR, or PR) to the earliest recurrence, progressive disease, or death, whatever occurs first.
Time-to-Progression (TTP)Up to 3 YearsTTP will be defined as the number of days from the date of first dose to the date of earliest disease progression.
Minimal Residual Disease (MRD) negativityUp to 3 YearsThe MRD negativity rate is defined as the proportion of participants who achieve MRD negative status.

Countries

Australia, Canada, France, Japan, Netherlands, Norway, United States

Contacts

CONTACTABBVIE CALL CENTER
abbvieclinicaltrials@abbvie.com844-663-3742
STUDY_DIRECTORABBVIE INC.

AbbVie

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 13, 2026