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Clinical trialNCT03847636CompletedInterventional

CryoBalloon Ablation for Treatment of Duodenal Adenomas

SponsorJohns Hopkins UniversityEnrollment33Duodenal AdenomasFamilial Adenomatous Polyposis
View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

This multicenter prospective non-randomized interventional study (clinical trial) that will assess the safety and efficacy of cryoballoon ablation treatment using the C2 Cryoballoon device (Pentax Medical Corporation) as an alternative primary treatment modality for sporadic and familial nonampullary nonpolypoid (flat) duodenal adenomas.
clinicaltrials.gov ↗

Investigators

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

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

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

United States
  • Johns Hopkins Hospital

    Baltimore, Maryland, United States

  • Northwell Health

    Manhasset, New York, United States

  • Geisinger Medical Center

    Danville, Pennsylvania, United States

  • Methodist Dallas Medical Center

    Dallas, Texas, United States

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
13 May 2019
Primary completion
1 Jun 2025
Completion
1 Jun 2026
Last update posted
5 Aug 2026
Registered enrollment
33
Registry id
NCT03847636
clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.