Stopped: The study was prematurely terminated due to enrollment challenges.
The objectives of this study are as follows: In participants with primary Type I or II achalasia, following a single 5-mg dose of olinciguat (IW-1701), * To assess the safety and tolerability * To determine the effects on measures of esophageal function by high-resolution impedance manometry (HRIM) * To determine the pharmacokinetic (PK) parameters
Age range
18 Years – 75 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Number of Participants With Treatment Emergent Adverse Events (TEAEs), Deaths, Serious Adverse Events (SAEs), and Adverse Events Resulting in Study Drug Discontinuation (ADOs)
Timeframe: Deaths, SAEs, and AEs: from enrollment through end-of-trial visit Day 21 (±7 days). TEAEs: from first dose of study drug through 72 hours postdose.
Change From Baseline in Supine Bolus Flow Time (BFT)
Timeframe: Day 1: predose (baseline) and 3 hours (+15 minutes) postdose
Change From Baseline in Upright BFT
Timeframe: Day 1: predose (baseline) and 3 hours (+15 minutes) postdose
Change From Baseline in Supine Integrated Relaxation Pressure (IRP)
Timeframe: Day 1: predose (baseline) and 3 hours (+15 minutes) postdose
Change From Baseline in Upright IRP
Timeframe: Day 1: predose (baseline) and 3 hours (+15 minutes) postdose
Change From Baseline in 1 Minute Impedance Bolus Height (IBH)
Timeframe: Day 1: predose (baseline) and 3 hours (+15 minutes) postdose
Change From Baseline in 2 Minute IBH
Timeframe: Day 1: predose (baseline) and 3 hours (+15 minutes) postdose
Change From Baseline in 5 Minute IBH
Timeframe: Day 1: predose (baseline) and 3 hours (+15 minutes) postdose
Area Under the Plasma Concentration Time Curve From Time 0 to the Last Observation (AUClast)
Timeframe: Day 1 predose: 0 (≤15 minutes); Day 1 postdose: 0.5 hours (±2 minutes), 1, 2, 3, 4, 5, 6, 8 hours (±5 minutes), 12, 17 hours (±15 minutes). Day 2 postdose 24 hours (±30 minutes). End of Treatment Visit: Day 21 (±7 days).
Maximum Observed Plasma Concentration (Cmax)
Timeframe: Day 1 predose: 0 (≤15 minutes); Day 1 postdose: 0.5 hours (±2 minutes), 1, 2, 3, 4, 5, 6, 8 hours (±5 minutes), 12, 17 hours (±15 minutes). Day 2 postdose 24 hours (±30 minutes). End of Treatment Visit: Day 21 (±7 days).
Time of Maximum Observed Plasma Concentration (Tmax)
Timeframe: Day 1 predose: 0 (≤15 minutes); Day 1 postdose: 0.5 hours (±2 minutes), 1, 2, 3, 4, 5, 6, 8 hours (±5 minutes), 12, 17 hours (±15 minutes). Day 2 postdose 24 hours (±30 minutes). End of Treatment Visit: Day 21 (±7 days).