Clinical trial Recruiting at 1 site Phase1; Phase2 Interventional Ages 18 and up

Using fluorescence imaging and light therapy to improve surgery outcomes for advanced colorectal cancer

Official title: Image Guided Surgery Followed by Intraoperative Photodynamic Therapy for Improving Local Tumor Control in Patients With Loco-Regionally Advanced or Recurrent Colorectal Cancer Undergoing Surgery - Phase I/II

Run by Roswell Park Cancer Institute · NCT06307548 · Data updated 2026-11-12

This study is testing if using special light to help surgeons see cancer better during surgery, followed by light therapy to kill leftover cancer cells, can improve outcomes for people with advanced colorectal cancer.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment21 (estimated)
SponsorRoswell Park Cancer Institute
Academic / other
Locations1 site (Buffalo, New York)
StatusRecruiting
StartedJuly 30, 2024
Main results expectedJune 1, 2029
Study endsJune 1, 2029
Registry record updatedOctober 15, 2026
Trial IDNCT06307548 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with locally advanced or recurrent colorectal cancer who are undergoing surgery.

Probably not a fit

Patients who are pregnant, nursing, or have conditions that make them unsuitable for the procedures may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial evaluates the effectiveness of fluorescence image-guided surgery followed by intraoperative photodynamic therapy (PDT) in patients with locally advanced or recurrent colorectal cancer. The approach involves administering a photosensitizing agent, aminolevulinic acid, which helps surgeons visualize cancerous tissues during surgery. After the surgery, PDT is applied to target any remaining cancer cells. The study aims to assess the safety, accuracy, and potential efficacy of this combined treatment method.

Why it matters

Potential benefit: If successful, this approach could significantly improve local tumor control and reduce recurrence rates in patients with advanced colorectal cancer.

How similar studies have gone: While the use of fluorescence imaging in surgery is established, the specific combination with intraoperative PDT for colorectal cancer is a novel approach that has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥ 18 years of age
* Patients with locally advanced or recurrent colorectal cancer undergoing surgery
* Amenable to diagnostic CT and MR imaging
* Have an Eastern Cooperative Oncology Group (ECOG) performance status of ≤ 3
* Participants of child-bearing potential must agree to use adequate contraceptive methods (e.g., hormonal or barrier method of birth control; abstinence) prior to study entry. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately
* Participant must understand the investigational nature of this study and sign an Independent Ethics Committee/Institutional Review Board approved written informed consent form prior to receiving any study related procedure

Exclusion Criteria:

* Pregnant or nursing female participants
* Any condition which in the Investigator's opinion deems the participant an unsuitable candidate to receive the fluorescence-guided surgery with intraoperative PDT
* Patients with porphyria, or with known hypersensitivity to porphyrins or porphyrin-like compounds
* Patients who are not cleared to undergo surgery
* Patients with any acute hepatitis or chronic liver dysfunction with baseline elevated liver function tests (i.e. Aspartate transaminase (AST)/alanine transaminase (ALT) ≥ 2.5 x upper limit of normal \[ULN\]) will be excluded from the study
* Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements
* Patients unwilling or unable to follow protocol requirements
* Any condition which in the investigator's opinion deems the participant an unsuitable candidate to receive study drug and/or procedure

Where it's running

  • Roswell Park Cancer Institute
    Buffalo, New York, United States
    Recruiting

Study contacts

  • Principal investigator: Anthony S Dakwar — Roswell Park Cancer Institute

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.