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Trial of IW-1973 (A Stimulator of Soluble Guanylate Cyclase (sGC)) in Healthy Volunteers

A 2-stage Phase 1 Study of Safety, Tolerability, PK, and PD of IW-1973 Tablet in Healthy Volunteers in an Open-label, Single-dose Stage, and a Randomized, Double Blind, Placebo-controlled, Multiple-ascending-dose Stage

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02616861
Enrollment
54
Registered
2015-11-30
Start date
2015-11-30
Completion date
2016-06-30
Last updated
2019-04-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Brief summary

Stage 1: To assess the safety, tolerability, pharmacokinetic (PK) profile, and pharmacodynamic (PD) effects of the IW-1973 Tablet administered orally to healthy volunteers, in fed and fasted states, in a single-dose crossover study. Stage 2: To assess the safety, tolerability, PK profile, and PD effects of a range of doses of IW-1973 Tablet administered orally to healthy subjects in a 21-day, multiple ascending-dose study with optional up-titration of dose level within cohort.

Interventions

IW-1973 Tablet

Matching placebo tablet

Sponsors

Cyclerion Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Subject is an ambulatory male or female between 18 and 55 years old at the Screening Visit * Subject's body mass index score is \> 18.5 and \< 30.0 kg/m2 at the Screening Visit * Women of childbearing potential must have a negative pregnancy test and must agree to use double-barrier contraception * Subject is in good health and has no clinically significant findings on a physical examination * Other inclusion criteria per protocol

Exclusion criteria

* History of any clinically significant medical condition * Other

Design outcomes

Primary

MeasureTime frame
Treatment Emergent Adverse Events42 Days
Maximum observed plasma concentration (Cmax)42 Days
Blood Pressure42 days
Area under the plasma concentration time curve during a dosing interval (AUC)42 Days
Time of maximum observed plasma concentration (Tmax)42 Days
Heart rate42 Days
Serum cGMP42 Days

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026