Clinical trial Recruiting at 23 sites Phase1; Phase2 Interventional Ages 18 and up

Assessing the effects of Etentamig on AL Amyloidosis in adults

Official title: An Open-Label Phase 1/2 Study Evaluating the Safety and Efficacy of Etentamig (ABBV-383) in AL Amyloidosis

Run by AbbVie · NCT06158854 · Data updated 2026-11-12

This study is testing a new drug called Etentamig to see if it can help adults with AL amyloidosis feel better and manage their symptoms.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment76 (estimated)
SponsorAbbVie
Industry-sponsored
Locations23 sites (Miami, Florida and 22 other locations)
StatusRecruiting
StartedApril 1, 2024
Main results expectedFebruary 2028
Study endsAugust 2031
Registry record updatedMay 13, 2026
Trial IDNCT06158854 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults diagnosed with primary systemic AL amyloidosis who have previously been treated with specific therapies.

Probably not a fit

Patients with other non-AL amyloid diseases or those with symptomatic multiple myeloma may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the safety and efficacy of Etentamig (ABBV-383), an investigational drug, in adult participants diagnosed with immunoglobulin light chain (AL) amyloidosis. The trial is divided into two parts: a dose escalation phase to determine optimal dosing and a safety expansion phase to further assess the drug's effects. Participants will receive one of three doses during the first part, followed by one of two doses in the second part, with a total of around 76 participants expected to enroll. The study aims to monitor changes in disease activity and any adverse events associated with the treatment.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients suffering from AL amyloidosis.

How similar studies have gone: While this approach is novel, similar studies targeting AL amyloidosis have shown promise in the past.

Who can join: the full rules

Show full inclusion / exclusion criteria
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 considered risk stage 3b with stable cardiac function and markers for 3 months prior to dosing, and have measurable disease of AL amyloidosis as defined by difference between involved and uninvolved free light chains (dFLC) \>= 50 mg/L or meeting high-risk dFLC progression criteria after immediate prior line of therapy.
* Has previously been exposed to a proteasome inhibitor (PI) and an anti-CD38 monoclonal antibody.

Exclusion Criteria:

* Known history of clinically significant (per investigator's judgment) drug or alcohol abuse within the last 6 months.
* Known allergic reaction, significant sensitivity, or intolerance to constituents of the study treatment (and excipients) and/or other products in the same class.
* Participant has the following conditions:

  * Other non-AL amyloid disease;
  * Previous or current diagnosis of symptomatic multiple myeloma (MM), including the presence of lytic bone disease, plasmacytomas, \>= 60% plasma cells in the bone marrow, or hypercalcemia (defined as corrected calcium \> 11 mg/dL);
  * Active plasma cell leukemia (i.e., either 20% of peripheral white blood cells or \> 2.0 × 109/L circulating plasma cells by standard differential);
  * Waldenström's macroglobulinemia;
  * Acute diffuse infiltrative pneumopathy;
  * Major surgery within 28 days prior first dose or planned during study participation;
  * History of organ transplant requiring continued use of immunosuppressants;
  * Acute infections within 14 days prior first dose requiring parenteral therapy (antibiotic, antifungal, or antiviral);
  * Participant has received an autologous stem cell transplant (SCT) within 12 weeks or an allogeneic SCT within 1 year of the first dose of study treatments.

Where it's running

  • Sylvester Comprehensive Cancer Center - University of Miami /ID# 255856
    Miami, Florida, United States
    Recruiting
  • Boston Medical Center /ID# 255066
    Boston, Massachusetts, United States
    Recruiting
  • Mayo Clinic - Rochester /ID# 255258
    Rochester, Minnesota, United States
    Recruiting
  • Icahn School of Medicine at Mount Sinai /ID# 255408
    New York, New York, United States
    Recruiting
  • Columbia University Medical Center /ID# 255068
    New York, New York, United States
    Recruiting
  • Memorial Sloan Kettering Cancer Center-Koch Center /ID# 255073
    New York, New York, United States
    Recruiting
Show 17 more locations
  • Atrium Health Levine Cancer Institute /ID# 255074
    Charlotte, North Carolina, United States
    Recruiting
  • Atrium Health Wake Forest Baptist Medical Center /ID# 255851
    Winston-Salem, North Carolina, United States
    Recruiting
  • Oregon Medical Research Center /ID# 255119
    Portland, Oregon, United States
    Recruiting
  • Vanderbilt University Medical Center. /ID# 273510
    Nashville, Tennessee, United States
    Recruiting
  • University of Washington /ID# 261581
    Seattle, Washington, United States
    Recruiting
  • Wisconsin Medical Center /ID# 255836
    Milwaukee, Wisconsin, United States
    Recruiting
  • Westmead Hospital /ID# 255200
    Westmead, New South Wales, Australia
    Recruiting
  • Princess Alexandra Hospital /ID# 255202
    Woolloongabba, Queensland, Australia
    Recruiting
  • Box Hill Hospital /ID# 255199
    Box Hill, Victoria, Australia
    Recruiting
  • CHU Limoges - Dupuytren 1 /ID# 255370
    Limoges, Franche-Comte, France
    Recruiting
  • CHU Toulouse - Hopital Rangueil /ID# 255377
    Toulouse, Haute-Garonne, France
    Recruiting
  • Alexandra General Hospital /ID# 255542
    Athens, Attica, Greece
    Recruiting
  • IRCCS AOU di Bologna Policlinico Sant Orsola Malpighi /ID# 255654
    Bologna, Italy
    Recruiting
  • Fondazione IRCCS Policlinico San Matteo /ID# 255655
    Pavia, Italy
    Recruiting
  • Nagoya City University Hospital /ID# 256086
    Nagoya, Aichi-ken, Japan
    Recruiting
  • Kumamoto University Hospital /ID# 262579
    Kumamoto, Kumamoto, Japan
    Recruiting
  • Japanese Red Cross Medical Center /ID# 256083
    Shibuya-ku, Tokyo, Japan
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
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Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.