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Long COVID

Long COVID or long-haul COVID is a group of health problems persisting or developing after an initial period of COVID‑19 from SARS-CoV-2 infection. Symptoms can last weeks, months, or years and are often debilitating. The World Health Organization defines long COVID as starting three months after the initial disease, but other agencies define it as starting at four weeks after the initial COVID-19.

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114trials recruiting now
United Statesmost trial sites (47)
127mapped site locations
VA Office of Research most active sponsor

Trials by phase

  • Early phase 11
  • Phase 14
  • Phase 217
  • Phase 39
  • Phase 43
  • Not applicable (device/behavioral)47
  • Observational study38

Phase 1 tests safety, phase 2 tests whether it works, phase 3 compares it with standard care, phase 4 follows it after approval.

Countries with the most trials

  • United States47
  • Canada13
  • Germany10
  • Spain7
  • Italy5
  • Taiwan4
  • Brazil4
  • Netherlands4

Where trials are recruiting

Each dot is a site city; bigger dots have more recruiting trials. Showing up to 400 locations.

Lead sponsors

VA Office of Research and Development · 7Icahn School of Medicine at Mount Sinai · 4Technical University of Munich · 2National Taiwan University Hospital · 2Mayo Clinic · 2University of Alberta · 2University of California, San Francisco · 2ImmunityBio, Inc. · 2

Newest recruiting trials

See all 114 on ClinicalTrials.gov →

General information only, not medical advice. Trial listings are written by sponsors; eligibility and contacts are on each official listing.