๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-08-12

Validation of Biomarkers for Long COVID in the LIINC Viral Immunopathogenesis and Persistence Repeat Donor Cohort (VIPER) (NCT07770022)

๐ŸŸข Recruiting Interventional Protocol ๐Ÿ“Š Observational Clinical Research Sponsor: University of California, San Francisco

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

The purpose of this study is to better understand the biological changes associated with Long COVID and to identify laboratory tests (biomarkers) that may help diagnose the condition and measure how it changes over time. Researchers will enroll people with Long COVID as well as people who have fully recovered after COVID-19 infection. Participants will provide health information and biological samples, such as blood, saliva, stool, and, for some participants, tissue biopsies. These samples will be used to study the biological processes involved in Long COVID and to support the development of new diagnostic tests that may improve future research, clinical trials, and patient care.

Who can join: Review the eligibility criteria below.

Location: Zuckerberg San Francisco General Hospital โ€” San Francisco, California

Age range: 18 Years

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (1 Sites)

  • Zuckerberg San Francisco General Hospital โ€” San Francisco, California

๐Ÿ“ž Contact the Study Coordinator

Phone: (415) 502-2449

Email: VIPERStudy@ucsf.edu

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

๐Ÿ’ฐ Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA ยง 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

More studies in Long Covid

Explore by condition: All Long Covid clinical trials

๐Ÿ’ก How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
๐Ÿ›๏ธ View Official NIH Record โ†—