A Multicenter Trial to Evaluate the Efficacy, Safety and Tolerability of HZN-825 in Subjects With Idiopathic Pulmonary Fibrosis

Idiopathic Pulmonary Fibrosis Clinical Trial

Official title: A Phase 2b Randomized, Double-blind, Placebo-controlled, Repeat-dose, Multicenter Trial to Evaluate the Efficacy, Safety and Tolerability of HZN-825 in Subjects With Idiopathic Pulmonary Fibrosis

Status Active, not recruiting

Clinical Trial Summary

HZNP-HZN-825-303 (HARBOR) comprises of 2 parts. Part 1 (Core Phase) is a randomized, double-blind, placebo-controlled, repeat-dose, multicenter trial to evaluate the efficacy, safety and tolerability of HZN-825 in participants with Idiopathic Pulmonary Fibrosis (IPF).

Part 2 (Extension Phase) is an optional, open-label, repeat-dose, multicenter extension of the Core Phase. The trial will include up to an 8-week Screening Period and a 52-week Double-blind Treatment Period in the Core Phase and 52 weeks of open-label HZN-825 treatment in the Extension Phase.

During the Core Phase, participants will be screened within 8 weeks prior to the baseline (Day 1) Visit. Approximately 135 participants who meet the trial eligibility criteria will be randomly assigned in a 1:1:1 ratio on Day 1 to receive HZN-825 300 mg QD, HZN-825 300 mg BID or matching placebo orally for 52 weeks using the following 2 stratification factors:

1. Concomitant use of approved IPF therapy (i.e., nintedanib or pirfenidone): yes or no

2. Forced vital capacity (FVC) % predicted at Baseline: ≥70% or <70%

Participants who complete the 52-week Double blind Treatment Period of the Core Phase of the trial will be invited to extend their participation in the 52-week Extension Phase of the trial.

Clinical Trial Description

Part 1 (Core Phase) The overall objective of the Core Phase is to investigate the efficacy, safety and tolerability of 2 dose regimens of HZN-825, a selective antagonist of lysophosphatidic acid receptor-1 (LPAR1), administered orally once daily (QD) or twice daily (BID) for 52 weeks in the treatment of participants with IPF.

Part 2 (Extension Phase) The overall objective of the Extension Phase is to investigate the long-term efficacy, safety and tolerability of HZN-825, a selective antagonist of LPAR1, administered at a dose of 300 mg BID orally to participants with IPF in a 52-week open-label extension (OLE) following completion of the Core Phase of the trial. The dose for the Extension Phase may be modified based on the results of the Core Phase.

Two types of Baseline are defined for the Extension Phase:

• OLE Baseline, defined as the latest measurement prior to the first dose of HZN-825 in the Extension Phase

• HZN-825 Baseline, defined as the latest measurement prior to the first dose of HZN-825 in either the Core Phase or the Extension Phase. For subjects who received placebo in the Core Phase, OLE Baseline will be the same as HZN-825 Baseline.

Acquired from Horizon in 2024 ;

Related Conditions & MeSH terms

• Fibrosis
• Idiopathic Pulmonary Fibrosis
• Pulmonary Fibrosis

• NCT number: NCT05032066
• Study type: Interventional
• Source: Amgen
• Status: Active, not recruiting
• Phase: Phase 2
• Start date: August 25, 2021
• Completion date: July 2025