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

Pliant Therapeutics

Status and phase: Completed; Phase 2

Conditions: Idiopathic Pulmonary Fibrosis

Treatments: Drug: Placebo; Drug: PLN-74809

Study type: Interventional

Funder types: Industry

Identifiers

NCT05621252

PLN-74809-IPF-205

Details and patient eligibility

About

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.

Full 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.

Enrollment: 10 patients

Sex: All

Ages: 40+ years old

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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10 participants in 2 patient groups, including a placebo group

PLN-74809

Experimental group

Description:

160 mg PLN-74809

Treatment:

Drug: PLN-74809

Placebo

Placebo Comparator group

Description:

Placebo

Treatment:

Drug: Placebo