Experimental drug AMG 420 tested in Tough-to-Treat myeloma – early trial halted

NCT ID NCT03836053

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This early-phase trial tested a drug called AMG 420 in 23 people with multiple myeloma that had returned or stopped responding to at least three prior treatments. Participants received the drug as a continuous 28-day IV infusion. The study aimed to find the safest dose and check for side effects, but it was terminated early. Results may help guide future research, but no conclusions about effectiveness can be drawn.

What this could mean

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

Active substance

AMG 420

What this could lead to

If successful, this could point toward a new treatment option for patients with multiple myeloma that has stopped responding to other therapies.

What could go wrong

This was a very early Phase 1 trial with only 23 participants, and it was terminated early. The drug may cause serious side effects like cytokine release syndrome, and it is unknown if it will work in larger groups.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

plasma cell myeloma

As listed by the trial registrant

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

Contacts and locations

Locations

  • Advocate Lutheran General Hospital

    Park Ridge, Illinois, 60068, United States

  • Centre Hospitalier Universitaire Dinant Godinne - Universite Catholique de Louvain Namur

    Yvoir, 5530, Belgium

  • Centres Hospitaliers Jolimont - Hopital de Jolimont

    Haine Saint Paul - La Louviere, 7100, Belgium

  • Kantonsspital St Gallen

    Sankt Gallen, 9007, Switzerland

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114, United States

  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10021, United States

  • National Hospital Organization Okayama Medical Center

    Okayama, Okayama-ken, 701-1192, Japan

  • St Vincents Hospital Melbourne

    Fitzroy, VIC, Victoria, 3065, Australia

  • St Vincents Hospital Sydney

    Darlinghurst, New South Wales, 2010, Australia

  • Wake Forest Baptist Health

    Winston-Salem, North Carolina, 27157, United States