New drug combo targets breathing pauses in sleep apnea

NCT ID NCT06776432

First seen Nov 01, 2025 · Last updated Jun 19, 2026 · Updated 34 times

Summary

This Phase 2A study tests three drugs—sivopixant, acetazolamide, and SASS-001—in 60 adults with sleep apnea that has a central component (where the brain fails to signal breathing). The goal is to see if these drugs can reduce the number of breathing pauses during sleep. Participants have conditions like heart failure or atrial fibrillation. The study compares each drug against a placebo to measure safety and effectiveness.

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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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Contacts and locations

Locations

  • Altman Clinical and Translational Research Institute (ACTRI)

    La Jolla, California, 92037, United States

  • Huntsville Research Institute LLC

    Huntsville, Texas, 77340, United States

  • Infinity Medical Research

    North Dartmouth, Massachusetts, 02747, United States

  • Intrepid Research, LLC

    Cincinnati, Ohio, 45245, United States

  • John D. Dingell VA Medical Center

    Detroit, Michigan, 48201, United States

  • Mayo Clinic

    Rochester, Minnesota, 55905, United States

  • OnSite Clinical Solutions

    Rock Hill, South Carolina, 29732, United States

  • PharmaDev Clinical Research Institute, LLC

    Miami, Florida, 33176, United States

  • Teradan Clinical Trials

    Brandon, Florida, 33511, United States

What this could mean

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

Active substance

sivopixant, acetazolamide, and SASS-001 (drugs)

What this could lead to

If successful, this could point toward new medication options to reduce breathing pauses during sleep for people with central sleep apnea.

What could go wrong

This is an early Phase 2A trial with only 60 participants, so results may not apply to everyone. The drugs may not work better than placebo, and side effects are possible.

Conditions

The condition(s) this trial relates to.

central sleep apnea syndrome obstructive sleep apnea syndrome sleep apnea syndrome

As listed by the trial registrant

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