Cyclerion Therapeutics

Closed portfolio with an early-phase archive tilt

According to ClinicalTrials.gov-derived indexes, Cyclerion Therapeutics sits in the top decile of US sponsors by registered trial count (#1,226 of 15,742 sponsors by registered trial count).

11 total trials none currently recruiting 10 completed early-phase tilt top decile by trial count

Cyclerion Therapeutics: 11 sponsored US clinical trials, none currently recruiting.

Cyclerion Therapeutics sponsors 11 registered US clinical trials on ClinicalTrials.gov, none currently recruiting, and 10 completed. 0 of these trials are in Phase 3-4 (later-stage) and 11 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Healthy, with 2 trials.

Top-decile sponsor footprint

Cyclerion Therapeutics ranks in the top decile of sponsors by registered trial count (#1,226 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Trial completion reliability score

C 67/100

10 of 11 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (90.9%), vs. national p10 68.4% / p90 100% among 1,234 sponsors with at least 10 decided trials. Still-open trials (Recruiting, Active-not-recruiting, Not-yet-recruiting) are excluded since they have not reached an outcome yet.

Indexed trials (enrollment closed)

11 total, page 1 of 1

COMPLETED Phase 1

A Trial to Evaluate the Effect of Itraconazole (ITZ), a CYP3A4 Inhibitor, on the Pharmacokinetics of the Soluble Guanylate Cyclase Stimulator, Olinciguat (IW-1701), in Healthy Volunteers

NCT03892499

COMPLETED Phase 1

A Trial to Study the Absorption, Metabolism, and Excretion of [14C]-Praliciguat in Healthy Male Volunteers

NCT03818295

COMPLETED Phase 1

A Trial to Study the Absorption, Metabolism, and Excretion of [14C]-Olinciguat in Healthy Male Volunteers

NCT03795519

COMPLETED Phase 1

A Trial to Evaluate the Effect of Itraconazole (ITZ), a CYP3A4 Inhibitor, on the Pharmacokinetics of Praliciguat (IW-1973) in Healthy Volunteers

NCT03499106

COMPLETED Phase 2

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

NCT03285178

TERMINATED Phase 2

Study of IW-1701, A Stimulator of Soluble Guanylate Cyclase (sGC), in Patients With Type I or II Achalasia

NCT02931565

COMPLETED Phase 2

Trial of IW-1973, A Stimulator of Soluble Guanylate Cyclase (sGC) in Patients With Stable Type 2 Diabetes and Hypertension

NCT03091920

COMPLETED Phase 2

A Phase 2 Trial of IW-1973, A Stimulator of Soluble Guanylate Cyclase (sGC), in Patients With Stable Type 2 Diabetes and Hypertension

NCT02906579

COMPLETED Phase 1

A Trial of IW-1701, A Stimulator of Soluble Guanylate Cyclase (sGC), in Healthy Subjects

NCT02792998

COMPLETED Phase 1

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

NCT02616861

COMPLETED Phase 1

Trial of IW-1701 (A Stimulator of Soluble Guanylate Cyclase (sGC)) in Healthy Volunteers

NCT02572349

Phase Distribution

PhaseTrial count
Phase 1 7
Phase 2 4

Therapeutic Areas

How the Cyclerion Therapeutics early-phase archive is shaped

11 indexed studies, none listed as recruiting (0% open); 10 completed (91%).

Phase mix: 0 late (III/IV) vs 11 early (I/II) (early-phase heavy).

Top condition: Healthy (2 trials), 1 other listed.

How to read a closed sponsor archive

When recruiting_count is zero, the indexed set is completed or otherwise not open. Phase tilt still describes where archived studies sat on the investigational pathway. Re-check ClinicalTrials.gov before acting.

Cyclerion Therapeutics: archived-pipeline peers nationwide

Peers matched on 11 indexed studies with no current recruiting: volume and archive shape, not condition overlap.

Cyclerion Therapeutics sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 051015 0%0.0%0.0%0.1% Total trials Recruiting share Cyclerion TherapeuticsAderans Research InstituteAegerion PharmaceuticalsAllena PharmaceuticalsAOBiome10xBio22nd Century Group23andMe3-C Institute for Social Development
Cyclerion Therapeutics sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

Cyclerion Therapeutics sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 11 archived trials

Sponsors with similar archive density (± trial count)

What to do with this Cyclerion Therapeutics page

11 registered trials is a research-attention snapshot, not an endorsement of Cyclerion Therapeutics or any single study.

  • None of Cyclerion Therapeutics's trials are currently recruiting in this registry; that can change as new trials post, or check the broader research index. Browse research indexes
  • Healthy is the condition Cyclerion Therapeutics studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Healthy trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. Cyclerion Therapeutics pipeline card: 11 registered trials from official public datasets. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.