Imaging Evaluation of PLN-74809 in Participants With IPF (PLN-74809)

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

  • Idiopathic Pulmonary Fibrosis

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.