New hope for Hard-to-Treat myeloma: teclistamab trial in japan

NCT ID NCT04696809

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested teclistamab, a drug that helps the immune system find and attack myeloma cells, in 40 Japanese patients whose multiple myeloma had returned or stopped responding to treatment. The goal was to check safety and find the right dose in phase 1, then see how well it works in phase 2. The trial is now complete.

What this could mean

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

Active substance

Teclistamab (a bispecific antibody that helps immune cells attack myeloma cells)

What this could lead to

If successful, this could provide a new treatment option for Japanese patients with multiple myeloma that has returned or not responded to other therapies.

What could go wrong

This is an early-phase trial with only 40 participants, so results may not apply to all patients. Side effects like cytokine release syndrome and other immune reactions are possible.

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.

hematopoietic and lymphoid system neoplasm plasma cell myeloma

As listed by the trial registrant

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

Contacts and locations

Locations

  • Japanese Red Cross Medical Center

    Shibuya City, 150-8935, Japan

  • Japanese Red Cross Osaka Hospital

    Osaka, 543-8555, Japan

  • Kameda Medical Center

    Chiba, 296-8602, Japan

  • Kobe City Medical Center General Hospital

    Kobe, 650 0047, Japan

  • Kurume University Hospital

    Kurume, 830-0011, Japan

  • Kyoto Kuramaguchi Medical Center

    Kyoto, 603-8151, Japan

  • Nagoya City University Hospital

    Nagoya, 467 8602, Japan

  • National Hospital Organization Hiroshima-Nishi Medical Center

    Ōtake, 739-0696, Japan

  • National Hospital Organization Kumamoto Medical Center

    Kumamoto, 860-0008, Japan

  • National Hospital Organization Matsumoto Medical Center

    Matsumoto, 399-8701, Japan

  • National Hospital Organization Mito Medical Center

    Higashiibaraki-gun, 311-3193, Japan

  • National Hospital Organization Okayama Medical Center

    Okayama, 701-1192, Japan

  • Niigata Cancer Center Hospital

    Niigata, 951-8566, Japan

  • Ogaki Municipal Hospital

    Gifu, 503-8502, Japan

  • Osaka International Cancer Institute

    Osaka, 541 8567, Japan