New drug could save limbs without surgery

NCT ID NCT05372718

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

Summary

This study tests a drug called Fortelyzin, which is injected directly into blood clots to dissolve them, in people with acute limb ischemia (sudden loss of blood flow to a limb). The goal is to see if it can prevent amputation as well as or better than standard surgery. About 170 adults with moderate to severe limb ischemia will be randomly assigned to receive the drug or undergo surgery.

What this could mean

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

Active substance

Fortelyzin (recombinant non-immunogenic staphylokinase)

What this could lead to

If successful, this could offer a non-surgical option to restore blood flow and prevent limb amputation in people with acute limb ischemia.

What could go wrong

This is still being tested in 170 people, so results may not apply to everyone. The drug could cause bleeding or fail to dissolve the clot, requiring surgery anyway.

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.

limb ischemia thrombotic disease

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: •••••@•••••

Locations

  • Kaliningrad Regional Clinical Hospital

    RECRUITING

    Kaliningrad, 236016, Russia

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

    Contact

  • Kazan City Hospital No. 7

    RECRUITING

    Kazan', 420103, Russia

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

    Contact

    Contact

  • Kursk city emergency hospital

    RECRUITING

    Kursk, Kursl Region, 305035, Russia

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

    Contact

  • S.P. Botkin Moscow Multidisciplinary Scientific and Clinical Center

    RECRUITING

    Moscow, 125284, Russia

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

    Contact

  • S.S. Yudin City clinical hospital

    RECRUITING

    Moscow, 115446, Russia

    Contact

    Contact

  • Sergiyev Posad Regional Clinical Hospital

    RECRUITING

    Sergiyev Posad, Moscow Oblast, 141301, Russia

    Contact Phone: •••-•••-••••

    Contact

  • Ufa Emergency City Hospital

    RECRUITING

    Ufa, 450092, Russia

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

    Contact

  • Volgograd City Clinical Hospital of Emergency #25

    RECRUITING

    Volgograd, 400138, Russia

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

    Contact