New drug shows promise for rectal cancer patients

NCT ID NCT07269249

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at how well the drug dostarlimab works and how safe it is for people with a certain type of advanced rectal cancer (dMMR/MSI-H). About 50 adults with stage II or III rectal cancer will receive dostarlimab before any other treatment. Researchers will track tumor shrinkage and any side effects in real-world settings.

What this could mean

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

Active substance
Dostarlimab (a drug given through a vein every 3 weeks for 9 cycles)
What this could lead to
If successful, this could show that dostarlimab is an effective treatment option for certain rectal cancers, potentially reducing the need for surgery or chemotherapy.
What could go wrong
This is an observational study with only 50 participants, so results may not apply to everyone. It is not a randomized trial, and long-term outcomes are still unknown.

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Conditions

The condition(s) this trial relates to.

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

  • ASL Napoli 1, Presidio Ospedaliero Ospedale del mare, Oncologia medica

    NOT_YET_RECRUITING

    Naples, 80131, Italy

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

    Contact

  • IRCCS Fondazione G. Pascale, Unità Operativa Complessa Oncologia Addominale

    RECRUITING

    Naples, Italy

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

    Contact

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