Fibroblast Specific Inhibition of LOXL2 and TGFbeta1 Signaling in Patients With Pulmonary Fibrosis.

Study Purpose

This is a two part study. In the first part, the pharmacokinetic profile of Epigallocatechin-3-gallate (EGCG) in normal human volunteers given a single oral dose will be determined to set the dose for the second part of the study. In the second part of this study, lung biopsy fragments and urine samples from patients with interstitial lung disease treated with EGCG will be evaluated in biochemical assays and compared to samples from untreated control patients.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.

An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.

Searching Both is inclusive of interventional and observational studies.

Eligible Ages 40 Years - 70 Years
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

  • - Part 1: healthy volunteers.
  • - Part 2: - study will consist of patients presenting to the UCSF interstitial lung disease (ILD) outpatient clinic with imaging indicative of lung fibrosis but of uncertain classification, and who are willing to take EGCG for a minimum of 2 weeks prior to surgery.

Exclusion Criteria:

  • - co-morbidities affect hepatic function, such as HCV infection, cirrhosis, or.
- using drugs with significant hepatic toxicities

Trial Details

Trial ID:

This trial id was obtained from, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.


Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Early Phase 1
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

University of California, San Francisco
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Hal A Chapman, MD
Principal Investigator Affiliation UC San Francisco
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Overall Status Recruiting
Countries United States

The disease, disorder, syndrome, illness, or injury that is being studied.

Idiopathic Pulmonary Fibrosis
Additional Details

This is an interventional study intended to test inhibition of a signaling pathway in vivo in patients with interstitial lung disease, but not intended to affect lung function or disease modifications. Doses of oral Epigallocatechin-3-gallate (EGCG) that achieve plasma levels known to be safe in human volunteers and likely to target fibroblast TGFbeta RI kinase will be established. Disposable fragments of biopsies will be evaluated in biochemical assays including pSmad3 and Snail 1 or assayed to determine lysyl oxidase-like 2 (LOXL2) protein and LOXL2 enzyme activity. Urine collected before and after EGCG exposure will be used to determine whether terminal collagen cross-link breakdown products, termed pyridinoline/deoxypyridinoline (PYD/DPD) are changed from baseline. Blood collected before and after EGCG exposure will be assayed for serum biomarkers.

Arms & Interventions


Experimental: EGCG treatment

Healthy volunteers: 450 mg, 600 mg, or 750 mg Epigallocatechin-3-gallate (EGCG) capsules administered once daily by mouth Patients: 600 mg EGCG capsules once daily by mouth for two weeks


Drug: - Epigallocatechin-3-gallate (EGCG)

Epigallocatechin-3-gallate (EGCG) capsules

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

UC San Francisco, San Francisco, California




UC San Francisco

San Francisco, California, 94143

Site Contact

Hal A Chapman, MD


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