Clinical trialNCT01241305RecruitingObservational

One-Time DNA Study for Vasculitis

SponsorUniversity of PennsylvaniaEnrollment1,000Eosinophilic Granulomatosis With Polyangiitis (Churg-Strauss)Giant Cell ArteritisGranulomatosis With Polyangiitis (Wegener's)Microscopic PolyangiitisPolyarteritis NodosaTakayasu's Arteritis

View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Peter Merkel, MD, MPH
University of Pennsylvania
Study DirectorKOL profile →
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

14 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

Canada

St. Joseph'S Healthcare
Hamilton, Ontario, Canada
Nader Khalidi, MD
Recruiting
Mount Sinai Hospital
Toronto, Ontario, Canada
Christian Pagnoux, MD
Recruiting

Turkey (Türkiye)

Istanbul University
Istanbul, Fatih, Turkey (Türkiye)
Completed

United States

Cedars-Sinai Medical Center
Los Angeles, California, United States
Completed
University of California, San Francisco
San Francisco, California, United States
Completed
Northwestern University
Chicago, Illinois, United States
Recruiting
University of Kansas Medical Center
Kansas City, Kansas, United States
Completed
University of Michigan
Ann Arbor, Michigan, United States
Completed
Mayo Clinic
Rochester, Minnesota, United States
Completed
Hospital for Special Surgery
New York, New York, United States
Completed
Cleveland Clinic
Cleveland, Ohio, United States
Completed
University of Pennsylvania
Philadelphia, Pennsylvania, United States
Peter Merkel, MD, MPH →
Recruiting
University of Pittsburgh
Pittsburgh, Pennsylvania, United States
Completed
University of Utah
Salt Lake City, Utah, United States
Completed

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 31 Oct 2010
Primary completion: 31 Aug 2028
Completion: 31 Aug 2028
Last update posted: 22 Jan 2026
Registered enrollment: 1,000
Registry id: NCT01241305

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.