Status:

RECRUITING

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

Lead Sponsor:

AbbVie

Conditions:

Immunoglobulin Light Chain (AL) Amyloidosis

Eligibility:

All Genders

18+ years

Phase:

PHASE1

PHASE2

Brief Summary

Immunoglobulin light chain (AL) amyloidosis is the most common form of systemic amyloidosis. AL amyloidosis has many root causes and is characterized by the overproduction of AL that are secreted by c...

Eligibility Criteria

Inclusion

  • 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

  • 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.

Key Trial Info

Start Date :

April 1 2024

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

September 1 2031

Estimated Enrollment :

76 Patients enrolled

Trial Details

Trial ID

NCT06158854

Start Date

April 1 2024

End Date

September 1 2031

Last Update

December 17 2025

Active Locations (21)

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Page 1 of 6 (21 locations)

1

Sylvester Comprehensive Cancer Center - University of Miami /ID# 255856

Miami, Florida, United States, 33136

2

Boston Medical Center /ID# 255066

Boston, Massachusetts, United States, 02118

3

Mayo Clinic - Rochester /ID# 255258

Rochester, Minnesota, United States, 55905-0001

4

Icahn School of Medicine at Mount Sinai /ID# 255408

New York, New York, United States, 10029