Clinical trialNCT04339374RecruitingInterventional

Ultrasound and Photoacoustic Imaging for Enhanced Differential Diagnosis of Rectal Cancer

SponsorWashington University School of MedicineEnrollment90Colorectal CancerRectal Cancer

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

The purpose of this study is to demonstrate the functionality of a novel endorectal photoacoustic ultrasound imaging modality in humans with rectal cancer. The study involves testing a previously developed endorectal device to determine its ability to accurately assess rectal tumor response to preoperative treatment. Investigators hypothesize that a co-registered photoacoustic ultrasound endorectal device can significantly reduce unnecessary surgeries in rectal cancer patients with complete clinical response while maintaining high sensitivity in identifying those with residual cancer.

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.

William Chapman, Jr., M.D.
Washington University School of Medicine
Principal Investigator
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

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

Washington University School of Medicine
St Louis, Missouri, United States
Adam Booth, M.D.Anup Shetty, M.D.Matthew Mutch, M.D.Paul Wise, M.D.Quing Zhu, Ph.D.Steven Hunt, M.D.William Chapman, Jr., M.D.
Recruiting

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: 1 May 2023
Primary completion: 31 Dec 2028
Completion: 31 Dec 2028
Last update posted: 12 Feb 2026
Registered enrollment: 90
Registry id: NCT04339374

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.