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All 6 Recurrent Respiratory Papillomatosis trials and their US sites
Enter your ZIP code above to sort them by how far their nearest open site is from you.
- Zopa Retreatment and Vector Shedding in Adults With RRPMost sites in Georgia, Maryland and OhioRecruitingPhase 4Ages 18+Precigen3US sites
3 states - Autologous Dendritic Cell Vaccine For Recurrent Respiratory Papillomatosis (RRP) PatientsOnly in ArizonaRecruitingPhase 1Ages 18+Mayo Clinic1US site
- Merck IIT: RRP Pembro and LenvatinibOnly in ConnecticutRecruitingPhase 2Ages 18+Yale University1US site
- Rare Disease Patient Registry & Natural History Study - Coordination of Rare Diseases at SanfordOnly in South DakotaRecruitingSanford Health1US site
- The Natural History and Biological Study of Pulmonary Recurrent Respiratory Papillomatosis (pRRP)Only in ConnecticutRecruitingAges 18-99Massachusetts General Hospital1US site
- Juvenile Recurrent Respiratory Papillomatosis: Establishment of a French National Cohort (PRR : National Cohort " REPA ")RecruitingImagine InstituteNo US site yet
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Who runs the Recurrent Respiratory Papillomatosis trials in the US, and what stage they are in
Of the 8 Recurrent Respiratory Papillomatosis trials with a US site, 1 is in Phase 3, the last stage before a company can ask the FDA for approval. Earlier Phase 1 or 2 tests of safety and dosing make up 4 of them. One is a Phase 4 study of an already approved treatment. The remaining 2 have no drug phase, such as studies that follow people over time or test a device or a way of giving care. Companies run 2 of them, and universities, hospitals, foundations and government groups run 6. Precigen runs the most, with 2. The most recently listed one first appeared on ClinicalTrials.gov on October 28, 2026.
Recurrent Respiratory Papillomatosis trials in the US, state by state
Of the 8 Recurrent Respiratory Papillomatosis trials with a US site, 2 accept children under 18. Their open sites are in District of Columbia and South Dakota. A trial counts once in each state where it has an open site, and some trials accept both children and adults.
US hospitals running the most Recurrent Respiratory Papillomatosis trials
Centers that run trials for a rare condition often see more people with it than most clinics do, so this list can also help you find doctors who know Recurrent Respiratory Papillomatosis.
- Children's National HospitalWashington D.C., District of Columbia1 trial
- Department of Otolaryngology - Head & Neck SurgeryColumbus, Ohio1 trial
- Mayo Clinic in ArizonaScottsdale, Arizona1 trial
- National Institute of HealthBethesda, Maryland1 trial
- National Institutes of Health Clinical CenterBethesda, Maryland1 trial
- Sanford HealthSioux Falls, South Dakota1 trial
- University of CincinnatiCincinnati, Ohio1 trial
- Winship Cancer Institute, Emory UniversityAtlanta, Georgia1 trial
- Yale School of MedicineNew Haven, Connecticut1 trial
- Yale UniversityNew Haven, Connecticut1 trial
Help getting to a Recurrent Respiratory Papillomatosis trial far from home
Ask the study team whether the trial pays back travel, parking and hotel costs, because many sponsors do. The FDA's guidance on paying research volunteers says paying back these costs does not count as pressuring someone to join.
These nonprofits also help patients reach care, and each one sets its own rules.
- Mercy Medical Angels
- Pays for gas cards, ground rides and airline tickets anywhere in the US, and it lists clinical trials as a reason to travel. Household income at or below 300% of the federal poverty guidelines, and usually a trip of 50 miles or more each way.
- Air Charity Network
- Volunteer pilots in all 50 states fly patients for free in small private planes, and members also fly people taking part in clinical trials. You must be able to walk and sit upright for the flight, show financial need and have a backup plan if weather cancels it.
- Ronald McDonald House
- Gives families a room near the hospital while a child gets care, through 394 House programs around the world. Families of a sick child, with rules set by each local chapter.
- Healthcare Hospitality Network
- Keeps a map of hospitality houses near hospitals, and most member houses charge little or nothing to patients and families. Each house sets its own rules, so check with the house near your study site.
Program details were checked on each program's website on October 24, 2026.
Questions about finding a Recurrent Respiratory Papillomatosis trial near you
Are there Recurrent Respiratory Papillomatosis clinical trials near me?
As of November 13, 2026, 6 Recurrent Respiratory Papillomatosis clinical trials are recruiting now and 3 are not yet recruiting. In the US, 8 of them have at least 1 open site, across 6 states and Washington, DC. Enter your ZIP code on this page to rank every one of them by the distance to its closest open site, with the sites shown on a map.
Which states have Recurrent Respiratory Papillomatosis clinical trial sites?
Recruiting Recurrent Respiratory Papillomatosis trials list open sites in Arizona, Connecticut, District of Columbia, Georgia, Maryland, Ohio and South Dakota.
Are there Recurrent Respiratory Papillomatosis trials for children near me?
Of the 8 Recurrent Respiratory Papillomatosis trials with a US site, 2 accept children under 18. Their open sites are in District of Columbia and South Dakota. Each trial sets its own age limits, so check the ages listed on a trial before you contact it.
Who pays for travel to a Recurrent Respiratory Papillomatosis clinical trial?
Many trial sponsors pay back travel, parking and hotel costs, so ask the study team before you rule out a far-away site. The FDA's guidance says paying back these costs does not count as pressuring someone to join. Charities such as Mercy Medical Angels and Air Charity Network can also help with rides and flights.
What if there is no Recurrent Respiratory Papillomatosis trial near me?
Some trials send staff to your home or use a local lab, so fewer visits happen at the study site. You can also sign up on this page to get an email when a Recurrent Respiratory Papillomatosis trial opens a new site or changes status.
How is the distance to a trial site measured?
Distances are straight-line miles from the center of your ZIP code to each study site's listed location, not driving distance. Your browser looks up the ZIP code's coordinates with a free map service, Zippopotam.us, and the ZIP code is never sent to or stored by Trial Friend.
FDA-approved for Recurrent Respiratory Papillomatosis: Papzimeos (zopapogene imadenovec), Voceryq (doruxapapogene ralaplasmid and lalikinogene sifuplasmid-gxfd).
Clinical trials near you for related conditions
Source: ClinicalTrials.gov, trials with status Recruiting or Not yet recruiting. Refreshed every 6 hours; counts as of November 13, 2026. Sites that ClinicalTrials.gov lists as closed or withdrawn are left out. Children means the trial's age group includes people under 18.