Can a Dual-Targeting antibody stop amyloid buildup in its tracks?

NCT ID NCT07751471

First seen Aug 07, 2026 ยท Last updated Aug 07, 2026

Summary

This phase 2 trial is testing an investigational drug called QLS4131 in people newly diagnosed with AL amyloidosis, a condition where abnormal proteins build up in organs and cause damage. QLS4131 is a trispecific antibody designed to target and eliminate the plasma cells producing these harmful proteins. The study will assess how well the drug works in achieving a complete response and how safe it is, using a step-up dosing schedule over several treatment cycles.

What this could mean

Our plain-language read of the trial. This is informational only โ€” not medical advice or a prediction.

Active substance
QLS4131, an investigational trispecific antibody targeting BCMA and GPRC5D, given by subcutaneous injection
What this could lead to
If successful, this could offer a new treatment option for AL amyloidosis, potentially achieving deeper remissions and improving organ function.
What could go wrong
This is an early-phase, small trial (20 participants), so results may not be conclusive. The drug may cause side effects like cytokine release syndrome, and its effectiveness is not yet proven.

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Conditions

The condition(s) this trial relates to.

AL amyloidosis Immunoglobulin Light-chain Amyloidosis plasma cell neoplasm

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Institute of Hematology and Blood Diseases Hospital Chinese Academy of Medical Sciences

    Tianjin, Tianjin Municipality, 300020, China

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