Fluorescence Image Guided Surgery Followed by Intraoperative Photodynamic Therapy for Improving Local Tumor Control in Patients With Locally Advanced or Recurrent Colorectal Cancer
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
3 other identifiers
interventional
21
1 country
1
Brief Summary
This phase I/II trial studies the side effects and how well fluorescence image guided surgery followed by intraoperative photodynamic therapy for improving local tumor control in patients with colorectal cancer that has spread to nearby tissue or lymph nodes (locally advanced) or that has come back after a period of improvement (recurrent). Fluorescence image guided surgery uses a drug named aminolevulinic acid hydrochloride. Aminolevulinic acid hydrochloride is a photosensitizing agent, meaning that is activated by light and, is converted to another drug in cancer cells more than in normal cells. The converted drug emits fluorescence red light when activated with low power blue light. It is used to assist the surgeon to see cancer cells and small cancerous tissue that may have been missed during routine surgery. In addition to emitting fluorescence light, the converted drug in the cancer cells and tissue can be activated with red laser light to kill cancer cells. This procedure is called photodynamic therapy (PDT). Performing fluorescence image guided surgery followed by intraoperative photodynamic therapy after the surgical removal of the colorectal tumor before the surgical site will be closed may be effective and improve outcomes in patients with locally advanced or recurrent colorectal cancer.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Jul 2024
Typical duration for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 27, 2024
CompletedFirst Posted
Study publicly available on registry
March 13, 2024
CompletedStudy Start
First participant enrolled
July 30, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 1, 2027
May 6, 2026
May 1, 2026
2.8 years
February 27, 2024
May 4, 2026
Conditions
Outcome Measures
Primary Outcomes (4)
Accuracy of the fluorescence imaging (Phase I)
Will be determined by histopathology by examining the number of true positive fluorescence cases out of the total positive fluorescence biopsies collected in the study. This will be determined by reviewing the pathology reports. The proportion of surgical cases exhibiting a positive fluorescence signal by utilizing a simple proportion along with a 95% confidence interval.
Up to 3 years
Incidence of adverse events (Phase I)
Will be measured by recording Gleolan administration and intraoperative photodynamic therapy (PDT) treatment related adverse events that are ≥ grade 3 with attribution of 'probable', or 'definite', according to the National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0, that do not resolve within 7 days.
Up to 30 days post-therapy
Evidence of disease (Phase II)
Will be assessed by standard-of-care computed tomography (CT) and/or magnetic resonance imaging (MRI). The recurrence proportion and exact 95% confidence interval will be calculated.
At 12 weeks post treatment
Changes in carcinoembryonic antigen (CEA) and circulating tumor deoxyribonucleic acid (ctDNA) (Phase II)
Will be evaluated by collecting peripheral blood samples. The mean and a 95% confidence interval will be calculated around the mean change from baseline.
Within 4 weeks prior to surgical/PDT intervention and 4-6 weeks after treatment
Secondary Outcomes (6)
Changes in CEA and ctDNA (Phase I)
At 4 weeks prior to surgical/PDT intervention and 4-6 weeks after treatment
Rate of recurrence (Phase I)
At approximately 3 months post treatment, and during long term followup will be part (every 3 to 6 months up to 3 years)
Rate of local recurrence (Phase II)
Within 3 years post treatment during standard of care follow ups
Disease free survival (Phase II)
Up to 3 years after treatment
Correlation between disease free survival and changes in levels of CEA (Phase II)
At 4-6 weeks after treatment
- +1 more secondary outcomes
Study Arms (1)
Treatment (aminolevulinic, fluorescence-guided surgery, PDT)
EXPERIMENTALPatients receive aminolevulinic acid PO 2 to 4 hours prior to SOC surgery. Patients then undergo image-guided fluorescence 5-10 minutes post surgery, and intraoperative PDT 15-45 minutes post surgery. Patients also undergo CT or MRI during screening and on follow up. Patients also undergo blood sample collection throughout the trial.
Interventions
Undergo CT
Undergo fluorescence-guided surgery
Undergo surgery
Undergo MRI
Undergo PDT
Given PO
Undergo blood sample collection
Eligibility Criteria
You may qualify if:
- 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
You may not qualify if:
- 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
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Roswell Park Cancer Institute
Buffalo, New York, 14263, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Anthony S Dakwar
Roswell Park Cancer Institute
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 27, 2024
First Posted
March 13, 2024
Study Start
July 30, 2024
Primary Completion (Estimated)
June 1, 2027
Study Completion (Estimated)
June 1, 2027
Last Updated
May 6, 2026
Record last verified: 2026-05