New drug combo PrimeC shows promise in slowing ALS

NCT ID NCT05357950

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

Summary

This phase IIb trial tested PrimeC, a combination of two common drugs (ciprofloxacin and celecoxib), in 69 people with ALS. Participants took PrimeC or a placebo for 6 months, followed by a 12-month open-label extension where everyone received PrimeC. The study measured safety, side effects, and how well the drug slowed disease progression using standard ALS rating scales and breathing tests.

What this could mean

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

Active substance

PrimeC (a combination of ciprofloxacin and celecoxib)

What this could lead to

If successful, PrimeC could slow the progression of ALS and improve quality of life for patients.

What could go wrong

This is a small, early-phase (IIb) trial with only 69 participants. Results may not be conclusive, and the drug may not show significant benefit over placebo. Side effects from the drug combination 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.

amyotrophic lateral sclerosis

As listed by the trial registrant

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

Contacts and locations

Locations

  • A.O.U. Citta della Salute e della Scienza di Torino

    Torino, Italy

  • IRCCS Istituti clinici Maugeri

    Milan, Italy

  • Lawson Health Research Institute

    London, Ontario, Canada

  • Tel Aviv Sourasky Medical Center

    Tel Aviv, Israel