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Completed Phase 2 Interventional Results available

A Study of the Effect of IW-1701 (Olinciguat), a Stimulator of Soluble Guanylate Cyclase (sGC), on Patients With Sickle Cell Disease (SCD)

ClinicalTrials.gov ID: NCT03285178

Public ClinicalTrials.gov record NCT03285178. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 7, 2026, 5:58 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Randomized, Placebo-controlled, Phase 2 Study to Evaluate the Safety and Pharmacodynamics of Once-daily Oral IW-1701 in Patients With Stable Sickle Cell Disease

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The primary objective of the 1701-202 STRONG SCD study is to evaluate the safety and tolerability of different dose levels of IW-1701 compared with placebo when administered daily for approximately 12 weeks to patients with stable SCD. Exploratory objectives include evaluation of pharmacokinetic (PK) as well as evaluation of the effect of IW-1701 on symptoms of SCD, health-related quality of life, and biomarkers of pharmacodynamic (PD) activity.

Study identification

NCT ID
NCT03285178
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Cyclerion Therapeutics
Industry
Enrollment
88 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
16 Years to 70 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 21, 2017
Primary completion
Jul 21, 2020
Completion
Jul 21, 2020
Last update posted
Jul 20, 2023

2017 – 2020

United States locations

U.S. sites
30
U.S. states
18
U.S. cities
26
Facility City State ZIP Site status
Children's Hospital of Orange County Orange California 92868
MedStar Health Research Institute, MedStar Washington Hospital Center Washington D.C. District of Columbia 20010
Howard University Center for Sickle Cell Disease Washington D.C. District of Columbia 20060
Innovative Medical Research of South Florida, Inc. Aventura Florida 33180
Century Clinical Research, Inc. Fort Lauderdale Florida 32117
Foundation for Sickle Cell Disease Research Hollywood Florida 33021
Omega Research Maitland, LLC Orlando Florida 32810
Grady Memorial Hospital Atlanta Georgia 30303
Atlanta Center for Medical Research Atlanta Georgia 30331
University of Illinois at Chicago Chicago Illinois 60612
Healthcare Research Network II, LLC Flossmoor Illinois 60422
Clinical Trials of SWLA, LLC Lake Charles Louisiana 70601
University of Maryland Medical Center Baltimore Maryland 21201
Johns Hopkins School of Medicine Children's Center Baltimore Maryland 21205
Boston Children's Hospital Boston Massachusetts 02115
Children's Hospital of Michigan-Detroit Detroit Michigan 33021
Healthcare Research Network Hazelwood Missouri 63042
Hackensack University Medical Center, Pediatric Hematology and Oncology Hackensack New Jersey 07601
Jacobi Medical Center The Bronx New York 10461
New York Medical College Valhalla New York 10595
East Carolina University - Leo W. Jenkins Cancer Center Greenville North Carolina 27834
East Carolina University Brody School of Medicine, Department of Pediatrics, Division of Pediatric Hematology Greenville North Carolina 27834
Lynn Institute of Tulsa Tulsa Oklahoma 74105
The Clinical Trial Center LLC Jenkintown Pennsylvania 19046
University of Pittsburgh Medical Center Hillman Cancer Center Pittsburgh Pennsylvania 15232
Accurate Clinical Research Baytown Texas 77521
"UT Health Clinical Research Unit Center for Clinical and Translational Sciences Houston Texas 77030
Mays Cancer Center UT Health San Antonio San Antonio Texas 78229
Virginia Commonwealth University - Clinical Research Unit Richmond Virginia 23298
Blood Center of Wisconsin (BCW) Wauwatosa Wisconsin 53226

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 7 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03285178, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jul 20, 2023 · Synced Sep 7, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03285178 live on ClinicalTrials.gov.

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