Population Council

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, Population Council 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 1 currently recruiting 10 completed early-phase tilt top decile by trial count

Population Council: 11 sponsored US clinical trials, 1 recruiting.

Population Council sponsors 11 registered US clinical trials on ClinicalTrials.gov, 1 of them currently recruiting, and 10 completed. 1 of these trials are in Phase 3-4 (later-stage) and 9 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Ovulation, with 1 trials.

Top-decile sponsor footprint

Population Council 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

A 90/100

10 of 10 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (100.0%), 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.

Open and recent trials

11 total, page 1 of 1

RECRUITING Early Phase 1

Assess Performance Attributes and Acceptability of Non-medicated Intravaginal Rings Among Sexually Active Women in Atlanta, GA

NCT07039591

COMPLETED NA

A Crossover Study Evaluating 3 Non-medicated Silicone IVRs

NCT05128136

COMPLETED Phase 1

Study to Evaluate the Safety of Griffithsin in a Carrageenan Gel in Healthy Women

NCT02875119

COMPLETED Phase 1

A Study With an Open-Label Active Control to Evaluate the Potential of Nestorone® to Delay Cardiac Repolarization in Healthy Female Volunteers

NCT02236026

COMPLETED Phase 1

Safety, Pharmacokinetics and Acceptability of PC-1005 for Vaginal Use

NCT02033109

COMPLETED Phase 1

An Open-label Study to Evaluate the Effects of Concurrent Administration of Vaginal Antimycotic Medication Miconazole Nitrate on the Pharmacokinetics of Nestorone and Ethinyl Estradiol Delivered by a Contraceptive Vaginal Ring in Normal Ovulating Women

NCT02215395

COMPLETED Phase 2

Safety and Adherence of a Non-medicated Intravaginal Ring (IVR)

NCT01268332

COMPLETED Phase 1

A Two-part Trial Assessing the Effects of 7α-methyl-19-nortestosterone (MENT) on Blood Pressure in Normal Men: an Open-label Pilot Study Followed by a Randomized, Double-blind, Placebo-controlled Study

NCT00812630

COMPLETED Phase 2

A Phase 2, Dose-finding, Cross-over Study to Evaluate the Effect of a NES/E2 Transdermal Gel Delivery on Ovulation Suppression in Normal Ovulating Women

NCT00796133

COMPLETED Phase 2

Study to Evaluate the Safety and Efficacy of Two Contraceptive Vaginal Rings Delivering a Daily Dose of 1500 or 2500 μg of CDB-2914

NCT00791297

COMPLETED Phase 3

Safety and Efficacy of a Contraceptive Vaginal Ring Delivering Nestorone® and Ethinyl Estradiol

NCT00263341

Phase Distribution

PhaseTrial count
Phase 1 6
Phase 2 3
Phase 3 1

Therapeutic Areas

What is open in the Population Council pipeline

1 recruiting of 11 indexed (9% open); 10 completed (91%).

Phase mix: 1 late (III/IV) vs 9 early (I/II) (early-phase heavy).

Top condition: Ovulation (1 trial), 2 others listed.

How open-pipeline share is computed

Recruiting share is recruiting_count divided by trial_count for this sponsor in the public registry export. Status can change between pulls; treat the figure as a research-attention snapshot, not product availability.

Population Council: open-pipeline peers nationwide

Peers matched on 11 registered trials and 9% open enrollment, not the therapeutic-area sidebar.

Population Council 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 020406080 0%2%4%6%8%10% Total trials Recruiting share Population CouncilAderans Research InstituteAegerion PharmaceuticalsAllena PharmaceuticalsAOBiomeAlkermesDBV TechnologiesFlorida Gulf Coast UniversityGenfit
Population Council 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).

Population Council 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 trials (± recruiting share)

Sponsors near 9% open enrollment (± trial volume)

What to do with this Population Council page

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

  • 1 of Population Council's trials are currently recruiting, check each one's own eligibility criteria before contacting a site. Browse recruiting trials
  • Ovulation is the condition Population Council studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Ovulation 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.

Population Council pipeline card: 11 registered trials from official public datasets.Report a data error.