CI

At a glance

ClinicalIndex Comparison Record
Phase 1Completed· 22 enrolled
Drug / intervention
Frespaciguat +1 moredrug
Likely dose
Frespaciguat 32 µgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04370873
NCT04370873Phase 1Completed

A Study to Assess the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Multiple Dose MK-5475 in Participants With Pulmonary Hypertension Associated With COPD

Merck Sharp & Dohme LLC·interventional·Posted May 1, 2020·Updated May 28, 2025

In Brief

A Phase 1 clinical trial evaluating Frespaciguat and Placebo for Pulmonary Hypertension. Completed, enrolled 22 participants across 9 sites in 3 countries.

Detailed Summary

The primary objectives of this study are to assess the safety/tolerability and efficacy (by evaluating changes in pulmonary vascular resistance \[PVR\] and pulmonary blood volume \[PBV\]) of frespaciguat in participants with pulmonary hypertension associated with chronic obstructive pulmonary disease (PH-COPD). The primary hypothesis is that 28 days of frespaciguat treatment is superior to placebo treatment in reduction of PVR.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesIsrael, Moldova, United States
Collaborators--

Timeline

Phase 1CompletedFinished
202120222023202420252026
First PostedMay 1, 2020
Enrollment StartJun 5, 2020
Primary CompletionJan 12, 2022
TodayJul 2, 2026
Enrollment to primary: 1.6 yearsPosted 6.2 years ago

Interventions

Frespaciguatdrug

Frespaciguat 32 µg, 100 µg, 195 µg, 360 µg or 380 µg administered as dry powder inhalation according to randomization. Following review of pharmacokinetic (PK) and safety data, a second 7 days of dosing may be initiated. A dose of up to 360 μg up to twice a day may be administered based on PK data. Dosage may be adjusted downwards in Part 2, if indicated by PK results in Part 1.

Placebodrug

Placebo administered as dry powder inhalation according to randomization