A Clinical Study of Melphalan Flufenamide (Melflufen) and Dexamethasone for Patients With Immunoglobulin Light Chain (AL) Amyloidosis

  • End date
    Apr 27, 2024
  • participants needed
  • sponsor
    Oncopeptides AB
Updated on 18 July 2021
platelet count
renal function
stem cell transplantation
blood disorder
cell transplantation
bone marrow procedure
neutrophil count
chemotherapy regimen
congo red
amyloid deposition


This is a phase 1/2 open label study of melphalan flufenamide (melflufen) in combination with dexamethasone for participants with Al amyloidosis following at least one prior line of therapy. Melflufen will be administered on Day 1 of each 28-day cycle in combination with dexamethasone on days 1 and 2.

In both phases, treatment of each individual participant will continue for up to 8 cycles or until any stopping events occur.

Approximately 46 participants will be enrolled.


This is a clinical trial of melphalan flufenamide (melflufen), a peptide-conjugated alkylator which belongs to an novel class of drugs called peptidase-enhanced compounds, and targets the transformation process of tumor cells with a unique mechanism of action, as potential treatment option of AL amyloidosis.

AL amyloidosis is a rare progressive disease caused by proteotoxic light chain protein produced by small plasma cell clone. This plasma cell dyscrasia is characterized by monoclonal plasma cell's excessive production of monoclonal immunoglobulin light-chains that tends to misfold and subsequently deposit as amyloid fibrils in visceral organs. The plasma cell dyscrasia in AL amyloidosis is similar to that in multiple myeloma (MM) and therapies that are effective in MM are often used to treat AL amyloidosis.

Melphalan flufenamide is currently been evaluated in several ongoing clinical trials in patients with multiple myeloma, with observed efficacy. There are currently no therapies approved for treatment of AL amyloidosis and based on the efficacy of melphalan flufenamide and the demonstrated efficacy of melphalan (and other alkylators), it is anticipated that patients with AL amyloidosis may receive benefit from treatment with melphalan flufenamide.

This study consist of a screening period (up to 28 days), a treatment period (up to 8 cycles) and a follow-up period (up to 24 months).

Phase 1: Approximately 8-30 participants will be screened to achieve 7-23 enrolled participants.

Phase 2: Approximately 30 participants will be screened to achieve 23 enrolled participants.

Condition Amyloidosis, Lymphoproliferative Disorder, AL Amyloidosis, Primary Amyloidosis, Lymphoproliferative disorders
Treatment Dexamethasone, Melflufen, Melphalan-Flufenamide (Melflufen)
Clinical Study IdentifierNCT04115956
SponsorOncopeptides AB
Last Modified on18 July 2021

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