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ABBV-383

Phase 1

Immunoglobulin Light Chain (AL) Amyloidosis | Small molecule | Rare Disease |AbbVie Inc.|Last Updated: May 13, 2026

Target and mechanism

ModalitySmall molecule

Also known as ABBV-383 (Etentamig)

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment76

FDA Designations

No designations recorded

Clinical trial landscape

ABBV-383 · 1 trial · 1 indication

Phase 1 1
NCT06158854A Study to Assess Change in Disease Activity and Adverse Events (AE)s in Adult Participants With Immunoglobulin Light Chain (AL) Amyloidosis Receiving Etentamig (ABBV-383) as an Intravenous (IV) InfusionImmunoglobulin Light Chain (AL) Amyloidosis
RECRUITING76 Analytics
PHASE1RECRUITING
A Study to Assess Change in Disease Activity and Adverse Events (AE)s in Adult Participants With Immunoglobulin Light Chain (AL) Amyloidosis Receiving Etentamig (ABBV-383) as an Intravenous (IV) Infusion
Immunoglobulin Light Chain (AL) AmyloidosisUnlock trial analytics

Study Endpoints

Primary Endpoints

Dose Escalation Only: Number of Participants with Dose-Limiting Toxicities (DLT)
Up to 28 Days

DLT 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.

Dose Expansion Only: Percentage of Participants who Achieve Hematologic Complete Response (CR)
Up to 4 years

Hematologic CR is defined as the percentage of participants who achieve normalization of free light chain levels, negative serum immunofixation, negative urine immunofixation as determined per the modified International Amyloidosis Consensus Criteria (IACC).

Dose Expansion Only: Number of Participants with DLTs
Up to 4 years

DLT 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 (AEs)
Up to 4 years

An AE is defined as any untoward medical occurrence in a patient or clinical investigation in which a participant is administered a pharmaceutical product which does not necessarily have a causal relationship with this treatment.

Secondary Endpoints

Hematologic Overall Response Rate (ORR)
Up to 4 Years
Time to Hematologic CR
Up to 4 Years
Duration of Hematologic CR
Up to 4 Years
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Dose Escalation: ABBV-383 (etentamig) Dose AEXPERIMENTALParticipants will receive ABBV-383 (etentamig) dose A during the approximately 2 year study duration.
Dose Escalation: ABBV-383 (etentamig) Dose BEXPERIMENTALParticipants will receive ABBV-383 (etentamig) dose B during the approximately 2 year study duration.
Dose Escalation: ABBV-383 (etentamig) Dose CEXPERIMENTALParticipants will receive ABBV-383 (etentamig) dose C during the approximately 2 year study duration.
Dose Expansion: ABBV-383 (etentamig)EXPERIMENTALParticipants will receive ABBV-383 (etentamig) expansion dose B during the approximately 2 year study duration.

Interventions

NameTypeDescription
ABBV-383 (Etentamig)DRUGIntravenous Infusion
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites23

Inclusion Criteria: * Diagnosis of primary systemic immunoglobulin light chain (AL) amyloidosis. * Eastern Cooperative Oncology Group (ECOG) performance status of \<= 2. * Have at least 1 organ historically impacted by AL amyloidosis. * Considered AL amyloidosis cardiac risk stage 1, 2, or 3a, or c...

Countries:United StatesAustraliaFranceGreeceItalyJapan
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Frequently asked questions about ABBV-383

What is ABBV-383 used for?

ABBV-383, also known as Etentamig, is an investigational small molecule being developed for the treatment of Immunoglobulin Light Chain (AL) Amyloidosis, a rare disease. It is administered as an intravenous infusion and is currently in Phase 1 clinical development.

What does ABBV-383 target?

ABBV-383 is a small molecule being studied for its effects on disease activity in adult participants with Immunoglobulin Light Chain (AL) Amyloidosis. Its specific molecular target has not been disclosed in the available clinical trial information.

Who is developing ABBV-383?

ABBV-383 is being developed by AbbVie Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker ABBV. The drug is currently in Phase 1 clinical trials for Immunoglobulin Light Chain (AL) Amyloidosis.

What phase is ABBV-383 in?

ABBV-383 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. A Phase 1 study is currently recruiting participants to assess change in disease activity and adverse events in adults with AL amyloidosis.

What clinical trials is ABBV-383 in?

ABBV-383 is being evaluated in a Phase 1 clinical trial with the identifier NCT06158854. This study is recruiting 76 adult participants with Immunoglobulin Light Chain (AL) Amyloidosis across the United States, Australia, France, Greece, Italy, and Japan, and is assessing disease activity and adverse events.

Is ABBV-383 the same as Etentamig?

Yes, ABBV-383 is also known as Etentamig. The drug is being studied under both names in clinical research, and the Phase 1 trial NCT06158854 refers to it as Etentamig (ABBV-383) for the treatment of AL amyloidosis.