Clinical trialNCT02773420CompletedInterventional

HET Bipolar System: Validation of Outpatient Hemorrhoid Treatment

SponsorUniversity of Illinois ChicagoEnrollment35Hemorrhoids

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

Purpose: The current study aims to evaluate the safety and effectiveness of the HET™ Bipolar System (Medtronic, Boulder, CO) for the treatment of grade I-II hemorrhoids in a prospective pilot study. This device was evaluated retrospectively in a limited cohort of 23 patients previously. Methods: Patients seen at a colorectal clinic in a single institution with grade I-II hemorrhoids are offered to participate in a prospective pilot trial. The HET device is a modified anoscope equipped with LED lighting, a tissue clamping mechanism and a bipolar energy source used to treat multiple hemorrhoidal columns in one sitting. Three columns of hemorrhoids are treated with 2 heat energy applications per column. The primary outcome is the treatment effect on hemorrhoid symptoms of bleeding, pain, prolapse, itching, and soiling. This is measured with a patient completed questionnaire documenting each symptom's frequency from 0 to 3 (i.e. 0 is \< 1x/month; 3 is daily) before therapy and at 3 weeks and 6 month follow-up. Post-treatment pain scores were recorded using the visual analog scale (VAS).

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Investigators

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

Johan Nordenstam, MD
University of Illinois Chicago
Principal Investigator
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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

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

United States

University of Illinois at Chicago
Chicago, Illinois, 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: 31 Aug 2015
Primary completion: 31 Jan 2019
Completion: 31 Jan 2019
Last update posted: 3 Jun 2021
Registered enrollment: 35
Registry id: NCT02773420

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 4 Nov 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.