Clinical trial NCT06265532: Collagen-targeted Positron Emission Tomography (PET) Imaging for Assessment of EGCG Effect
Official title: Collagen-targeted PET Imaging for Assessment of EGCG Effect
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: PHASE1
Conditions: Idiopathic Pulmonary Fibrosis
Lead sponsor: University of California, San Francisco
Sponsor class: OTHER
Collaborators: name: Cornell University
name: Massachusetts General Hospital
name: University of Michigan
name: National Heart, Lung, and Blood Institute (NHLBI)
First posted: 2024-02-20
Enrollment: 22
Sex: ALL
Minimum age (years): 40
Maximum age (years): 85
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: SEQUENTIAL
Intervention model description: This is an optional substudy to the phase I study: "Dose ranging study of oral epigallocatechin-3-gallate (EGCG) given daily for 12 weeks to patients with Idiopathic Pulmonary Fibrosis (IPF) evaluating safety, PK interactions with standard of care drugs, and biomarkers of drug effect." Up to twenty-two participants participating in the aforementioned study will be enrolled into this sub-study. This substudy will be conducted at a select number of sites with capabilities for performing \[68Ga\]CBP8 PET.
Primary purpose: TREATMENT

Brief summary: The primary purpose of this substudy is to determine if collagen-targeted PET using the type 1 collagen-targeted PET probe, Gallium-68 (68Ga)-labeled collagen binding probe 8 (CBP8) can inform as to drug effect of EGCG and assist in dose selection.

Detailed description: This is an optional sub-study of the phase I study: "Dose ranging study of oral epigallocatechin-3-gallate (EGCG) given daily for 12 weeks to patients with Idiopathic Pulmonary Fibrosis (IPF) evaluating safety, pharmacokinetic (PK) interactions with standard of care drugs, and biomarkers of drug effect." Up to twenty-two participants participating in the aforementioned study will be enrolled into this sub-study. This substudy will be conducted at a select number of sites with capabilities for performing \[68Ga\]CBP8 PET.

Eligible participants who consent to the substudy will undergo \[68Ga\]CBP8 PET-CT or \[68Ga\]CBP8 PET-MRI at two time points. Participants will undergo 68Ga-CBP8 PET within 7 days prior to randomization and then again within 7 days prior to day 84 of the phase I study.

The hypothesis is that \[68Ga\]CBP8 PET will detect decreased collagen deposition in individuals treated with EGCG compared to placebo.

Eligibility criteria: Inclusion Criteria:

1. Enrolled in and eligible (based on screening procedures - Visit 1) for the main EGCG Phase 1 study, "Dose ranging study of oral epigallocatechin-3-gallate (EGCG) given daily for 12 weeks to patients with Idiopathic Pulmonary Fibrosis (IPF) evaluating safety, PK interactions with standard of care drugs, and biomarkers of drug effect
2. Signed informed consent

Exclusion Criteria:

1. Pregnant or breastfeeding (a negative quantitative serum human chorionic gonadotropin (hCG) pregnancy test is required for females having child-bearing potential before the participant can participate)\*
2. Research-related radiation exposure exceeds 50 millisievert (mSv) in the prior 12 months
3. Determined by the investigator to be clinically unsuitable for the study

Additional exclusion criteria for participants undergoing PET-MRI:

1. Electrical implants such as cardiac pacemaker, defibrillator, or perfusion pump
2. Metallic or electric implants contraindicated for magnetic resonance-PET (MR-PET) scanning
3. Claustrophobic reactions
4. Estimated glomerular filtration rate (eGFR) of less than 30 mL/min/1.73 m2 within the prior 30 days
5. Known allergy to gadolinium

   * Women of childbearing potential (WCBP) are defined as a sexually mature woman not surgically sterilized or not post-menopausal for at least 24 consecutive months if \< 55 years or 12 months if ≥ 55 years.

Primary outcomes:
measure: Change in collagen probe uptake over the entire lungs
timeFrame: From baseline to 12 weeks
Secondary outcomes:
Other outcomes:
measure: Change in peak enhancement over the entire lungs
timeFrame: From baseline to 12 weeks
measure: Change in the rate of contrast washin over the entire lungs
timeFrame: From baseline to 12 weeks
measure: Change in the area under the curve at 60 seconds over the entire lungs
timeFrame: From baseline to 12 weeks
measure: Change in the full width at half maximum over the entire lungs
timeFrame: From baseline to 12 weeks
measure: Change in the rate of contrast washout over the entire lungs
timeFrame: From baseline to 12 weeks
Locations:
city: Boston
country: United States
facility: Massachusetts General Hospital
state: Massachusetts
city: Ann Arbor
country: United States
facility: University of Michigan
state: Michigan
city: Charlottesville
country: United States
facility: University of Virginia
state: Virginia
Study officials:
affiliation: Weill Medical College of Cornell University
name: Fernando Martinez, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Montesi SB, Izquierdo-Garcia D, Desogere P, Abston E, Liang LL, Digumarthy S, Seethamraju R, Lanuti M, Caravan P, Catana C. Type I Collagen-targeted Positron Emission Tomography Imaging in Idiopathic Pulmonary Fibrosis: First-in-Human Studies. Am J Respir Crit Care Med. 2019 Jul 15;200(2):258-261. doi: 10.1164/rccm.201903-0503LE. No abstract available.
citation: Izquierdo-Garcia D, Desogere P, Fur ML, Shuvaev S, Zhou IY, Ramsay I, Lanuti M, Catalano OA, Catana C, Caravan P, Montesi SB. Biodistribution, Dosimetry, and Pharmacokinetics of 68Ga-CBP8: A Type I Collagen-Targeted PET Probe. J Nucl Med. 2023 May;64(5):775-781. doi: 10.2967/jnumed.122.264530. Epub 2022 Dec 8.