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New imaging technique reveals green tea Extract's effect on scarred lungs

NCT ID NCT06265532

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether a new type of PET scan can measure how the supplement EGCG (found in green tea) affects collagen buildup in the lungs of people with idiopathic pulmonary fibrosis (IPF). Twelve participants who were already in a larger EGCG study received an injection of a special probe that lights up collagen during the scan. The goal was to see if the scan could detect changes in lung collagen and help choose the right dose of EGCG.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

12 people

The number who actually took part.

Started

Feb 2024

Finished

Jan 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

40 to 85 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114, United States

  • University of Michigan

    Ann Arbor, Michigan, 48109, United States

  • University of Virginia

    Charlottesville, Virginia, 22908, United States

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