Cara Therapeutics

Closed portfolio with an early-phase archive tilt

According to ClinicalTrials.gov-derived indexes, Cara Therapeutics sits in the top decile of US sponsors by registered trial count (#668 of 15,742 sponsors by registered trial count).

23 total trials none currently recruiting 18 completed early-phase tilt top decile by trial count

Cara Therapeutics: 23 sponsored US clinical trials, none currently recruiting.

Cara Therapeutics sponsors 23 registered US clinical trials on ClinicalTrials.gov, none currently recruiting, and 18 completed. 7 of these trials are in Phase 3-4 (later-stage) and 16 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Uremic Pruritus, with 2 trials.

Top-decile sponsor footprint

Cara Therapeutics ranks in the top decile of sponsors by registered trial count (#668 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

F 35/100

18 of 23 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (78.3%), 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)

23 total, page 1 of 1

TERMINATED Phase 2

Study to Evaluate the Efficacy and Safety of Oral Difelikefalin for Moderate to Severe Pruritus in Subjects With Notalgia Paresthetica

NCT05978063

TERMINATED Phase 3

CR845-310302: A Study to Evaluate the Safety and Efficacy of Difelikefalin in Advanced Chronic Kidney Disease Patients With Moderate-to-Severe Pruritus

NCT05356403

TERMINATED Phase 3

Study to Evaluate the Efficacy and Safety of Oral Difelikefalin as Adjunct Therapy to a Topical Corticosteroid for Moderate to Severe Pruritus in Subjects With Atopic Dermatitis

NCT05387707

TERMINATED Phase 3

A Study to Evaluate the Safety and Efficacy of Difelikefalin in Advanced Chronic Kidney Disease Patients With Moderate-to-Severe Pruritus

NCT05342623

COMPLETED Phase 2

Study to Evaluate the Efficacy and Safety of Oral Difelikefalin (CR845) for Moderate to Severe Pruritus in Subjects With Notalgia Paresthetica (KOMFORT)

NCT04706975

COMPLETED Phase 1

CR845-100303: Study to Assess the Potential of Physical Withdrawal From Intravenous CR845 (Difelikefalin) in Hemodialysis Patients

NCT05533008

COMPLETED Phase 2

Study to Evaluate the Efficacy and Safety of Oral Difelikefalin (CR845) for Moderate to Severe Pruritus in Subjects With Atopic Dermatitis

NCT04018027

TERMINATED Phase 2

Study to Evaluate the Safety and Efficacy of Oral CR845 (Difelikefalin) in Patients With Primary Biliary Cholangitis (PBC) and Moderate-to-Severe Pruritus

NCT03995212

COMPLETED Phase 1

Study to Investigate the Effects of Single Intravenous Doses of Difelikefalin (CR845) on the QTc Interval in Healthy Subjects

NCT04019574

COMPLETED Phase 3

CR845-CLIN3105: A Study to Evaluate the Safety and Effectiveness of CR845 in Hemodialysis Patients With Moderate-to-Severe Pruritus

NCT03998163

COMPLETED Phase 1

Study to Evaluate the Pharmacokinetics and Metabolism of [14C] CR845 (Difelikefalin) in Patients With End Stage Renal Disease on Hemodialysis and in Healthy Subjects

NCT03947970

COMPLETED Phase 3

CR845-CLIN3103: A Global Study to Evaluate the Safety and Efficacy of CR845 in Hemodialysis Patients With Moderate-to-Severe Pruritus

NCT03636269

COMPLETED Phase 2

A Study to Evaluate the Safety and Efficacy of CR845 in Chronic Kidney Disease Patients With Moderate-to-Severe Pruritus

NCT03617536

COMPLETED Phase 3

A Study to Evaluate the Safety and Efficacy of CR845 in Hemodialysis Patients With Moderate-to-Severe Pruritus (KALM-1)

NCT03422653

COMPLETED Phase 3

Extension Study to Evaluate IV CR845 in Hemodialysis Patients With Moderate-to-Severe Pruritus

NCT03281538

COMPLETED Phase 2

A Study Evaluating Pain Relief and Safety of Orally Administered CR845 in Patients With Osteoarthritis of Hip or Knee

NCT02944448

COMPLETED Phase 2

Study to Evaluate IV CR845 in Hemodialysis Patients With Moderate-to-Severe Pruritus

NCT02858726

COMPLETED Phase 2

A Study Evaluating the Overall Pain Relief and Safety of Intravenous (IV) CR845 in Patients Undergoing Abdominal Surgery

NCT02542384

COMPLETED Phase 2

A Study of the Safety and Effectiveness of Orally Administered CR845 in Patients With Osteoarthritis of the Hip or Knee

NCT02524197

COMPLETED Phase 2

Safety and Pharmacokinetics of IV CR845 in Hemodialysis Patients, and Its Efficacy in Patients With Uremic Pruritus

NCT02229929

COMPLETED Phase 2

A Phase 2 Study to Evaluate Analgesic Effect of IV CR845 For Pain Following Bunionectomy Surgery

NCT01789476

COMPLETED Phase 2

Study to Evaluate Analgesic Effect of IV Administration of Kappa Agonist CR845 For Hysterectomy Surgery

NCT01361568

COMPLETED Phase 2

Study to Evaluate Analgesic Effect of Intravenous Administration of Kappa Agonist CR845 After Hysterectomy Surgery

NCT00877799

Phase Distribution

PhaseTrial count
Phase 1 3
Phase 2 13
Phase 3 7

Therapeutic Areas

How the Cara Therapeutics early-phase archive is shaped

23 indexed studies, none listed as recruiting (0% open); 18 completed (78%).

Phase mix: 7 late (III/IV) vs 16 early (I/II) (early-phase heavy).

Top condition: Uremic Pruritus (2 trials), 3 others 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.

Cara Therapeutics: archived-pipeline peers nationwide

Peers matched on 23 indexed studies with no current recruiting: volume and archive shape, not condition overlap.

Cara 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 0510152025 0%5%10%15%20%25% Total trials Recruiting share Cara TherapeuticsAMAG PharmaceuticalsAtriCureCraig L Slingluff, JrDuramed Research10xBio22nd Century Group23andMe3-C Institute for Social Development
Cara 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).

Cara 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 23 archived trials

Sponsors with similar archive density (± trial count)

What to do with this Cara Therapeutics page

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

  • None of Cara 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
  • Uremic Pruritus is the condition Cara Therapeutics studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Uremic Pruritus 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.

Cara Therapeutics pipeline card: 23 registered trials from official public datasets.Report a data error.