New combo pill aims to shrink spleens and ease symptoms in bone marrow cancer

NCT ID NCT07357727

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

Summary

This phase 3 trial tests whether adding pelabresib to the standard drug ruxolitinib works better than ruxolitinib alone for people with myelofibrosis, a type of bone marrow cancer. About 460 adults who have not taken JAK inhibitors before will receive either the combination or a placebo plus ruxolitinib. The main goals are to see if the combination shrinks the spleen and reduces symptoms like pain and fatigue.

What this could mean

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

Active substance

pelabresib (a drug) combined with ruxolitinib (a drug)

What this could lead to

If it works, this combination could offer better control of myelofibrosis by shrinking the spleen and easing symptoms more than the current standard treatment.

What could go wrong

This is a large phase 3 trial, but the added benefit of pelabresib is unproven. Side effects from the combination could be worse than ruxolitinib alone, and the results may not apply to all patients.

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.

primary myelofibrosis

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Novartis Investigative Site

    RECRUITING

    Capital Federal, C1114AAN, Argentina

  • Novartis Investigative Site

    RECRUITING

    Clayton, Victoria, 3168, Australia

  • Novartis Investigative Site

    RECRUITING

    Nantong, Jiangsu, 226000, China

  • Novartis Investigative Site

    RECRUITING

    Wenzhou, Zhejiang, 325000, China

  • Novartis Investigative Site

    RECRUITING

    Beijing, 100730, China

  • Novartis Investigative Site

    RECRUITING

    Fuzhou, 350001, China

  • Novartis Investigative Site

    RECRUITING

    Tianjin, 300020, China

  • Novartis Investigative Site

    RECRUITING

    Pune, Maharashtra, 411006, India

  • Novartis Investigative Site

    RECRUITING

    Suwon, Gyeonggi-do, 442-723, South Korea

  • Novartis Investigative Site

    RECRUITING

    Seoul, Yangcheon Gu, 07985, South Korea

  • Novartis Investigative Site

    RECRUITING

    Seoul, 03080, South Korea

  • Novartis Investigative Site

    RECRUITING

    Seoul, 05505, South Korea

  • Novartis Investigative Site

    RECRUITING

    Seoul, 06351, South Korea

  • Novartis Investigative Site

    RECRUITING

    Seoul, 06591, South Korea

  • Novartis Investigative Site

    RECRUITING

    Basel, 4058, Switzerland

  • Novartis Investigative Site

    RECRUITING

    Genolier, 1272, Switzerland

  • Summit Medical Group Oncology

    RECRUITING

    Berkeley Heights, New Jersey, 07922, United States

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • The Ohio State University Comprehensive Cancer Center

    RECRUITING

    Columbus, Ohio, 43221, United States

    Contact

    Contact Email: •••••@•••••