Purpose

This is a Phase 2a, single -center, randomized, double-blind, placebo-controlled study to evaluate type 1 collagen deposition in the lungs following once-daily treatment with PLN-74809 for 12-weeks. This study is occurring at Massachusetts General Hospital.

Condition

Eligibility

Eligible Ages
Over 40 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Participants, aged 40 years or older - Diagnosis of IPF, within 8 years prior to Screening - FVC % predicted ≥45%; historical FVC for entry in the study is permitted if within 1 month of screening - Diffusing capacity for carbon monoxide DLco (hemoglobin-adjusted) ≥30%; historical DLco for entry in the study is permitted if within 1 month of Screening - Participants currently receiving treatment for IPF with nintedanib or pirfenidone are permitted, if on a stable dose for at least 3 months

Exclusion Criteria

  • Currently receiving or planning to initiate treatment for IPF (fibrosis) with agents not approved for that indication by the FDA - Forced expiratory volume during the first seconds of the forced breath (FEV1)/FVC ratio <0.7 at Screening - Clinical evidence of active infection, including but not limited to bronchitis, pneumonia, sinusitis that can affect FVC measurement or IPF progression - Known acute IPF exacerbation or suspicion by the Investigator of such, within 6 months of Screening - Smoking of any kind within 3 months of Screening

Study Design

Phase
Phase 2
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Intervention Model Description
2:1 randomization PLN-74809:placebo
Primary Purpose
Treatment
Masking
Double (Participant, Investigator)
Masking Description
double-blind

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
PLN-74809
160 mg PLN-74809
  • Drug: PLN-74809
    160 mg PLN-74809
Placebo Comparator
Placebo
Placebo
  • Drug: Placebo
    Matching placebo

Recruiting Locations

More Details

NCT ID
NCT05621252
Status
Completed
Sponsor
Pliant Therapeutics, Inc.

Detailed Description

This is a Phase 2a, single-center, randomized, double-blinded, placebo-controlled study to evaluate type 1 collagen deposition in the lungs of participants with Idiopathic Pulmonary Fibrosis (IPF) following once-daily (QD) treatment with 160 mg PLN-74809 for 12 weeks. The study consists of an up to 28-day screening period, a 12-week treatment period, and a 2 week (±3 days) post treatment follow-up period. Approximately 12 eligible participants will be randomized in a 2:1 ratio (160 mg PLN-74809 vs placebo; approximately 8 receiving PLN-74809 and 4 receiving placebo) on Day 1 (Visit 3). Randomization will be stratified by use of standard of care IPF therapy with pirfenidone or nintedanib. PET/MRI scans will be conducted at Baseline and at Week 12.

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.