Gut feeling: probiotic pill tested as long COVID remedy
NCT ID NCT06643299
First seen Jun 25, 2026 · Last updated Aug 07, 2026 · Updated 2 times
Summary
This phase 2 trial tests whether taking a probiotic pill daily for four months can reduce Long COVID symptoms and improve quality of life. Researchers will enroll 180 adults with persistent Long COVID symptoms. Half will get the probiotic, half a placebo, and the study will compare how many shift from moderate-to-severe to mild symptoms.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- probiotic (BlueBiotics: Ultimate Care)
- What this could lead to
- If it works, this could point toward a simple, safe daily supplement to reduce Long COVID symptoms and improve quality of life.
- What could go wrong
- This is a mid-stage trial with only 180 participants, so results may not apply to everyone. Probiotics are generally safe but may not help all Long COVID symptoms.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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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
Locations
-
Rush University Medical Center
Chicago, Illinois, 60612, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Brain training program aims to restore cognitive function in veterans with long COVID
- GP training may ease long COVID burden