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NCT00877799 · ClinicalTrials.gov registry record · Phase 2

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

A Phase 2 study, sponsored by Cara Therapeutics.

Completed
Registry status
Phase 2
Development phase
114
Enrollment target

NCT00877799: Completed Phase 2 study, sponsored by Cara Therapeutics.

NCT00877799 is a Phase 2 study that has completed, run by Cara Therapeutics. The registered enrollment target is 114 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (14% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00877799, a Phase 2 study, has completed, sponsored by Cara Therapeutics.

COMPLETED
Registry status
Phase 2
Development phase
114 participants
Enrollment target

Study Summary

The purpose of this study is to determine the effectiveness and safety of single intravenous doses of the kappa opioid agonist CR845 in relieving pain in patients following laparoscopic-assisted hysterectomy surgery. The study protocol was divided into two parts with subjects either dosed with study drug the day following surgery (Cohort 1), or immediately after surgery (Cohort 2).

Primary Outcome

The primary efficacy endpoint was the percentage of treatment responders compared to placebo. A responder was defined as a subject who had at least a 40% reduction in their pain intensity score and a pain relief score of "some," "a lot," or "complete" at 15 and 30 min following the start of the study drug infusion.

Interventions

  • DRUG Placebo
  • DRUG CR845

Trial Details

FieldValue
Enrollment Target 114 participants
Start Date 2009-03
Est. Completion 2010-01
Phase Phase 2
Cara Therapeutics

23 total trials

What the finished NCT00877799 record still lists

NCT00877799 is an interventional study that assigns participants to a tested intervention. The registered 114 participants enrollment target is mid-sized for trials with a published cap, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (14% lower).

The record links to 0 conditions, and to 2 interventions - of which Placebo is the first listed.

NCT00877799 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00877799 about?

NCT00877799 is a clinical study titled "Study to Evaluate Analgesic Effect of Intravenous Administration of Kappa Agonist CR845 After Hysterectomy Surgery". The purpose of this study is to determine the effectiveness and safety of single intravenous doses of the kappa opioid agonist CR845 in relieving pain in patients following laparoscopic-assisted hysterectomy surgery. The study protocol was divided into two parts with subjects either dosed with study...

What is the current status of trial NCT00877799?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 114 participants. The study started on 2009-03. Estimated completion is 2010-01.

What interventions are being tested in trial NCT00877799?

The interventions under investigation include: Placebo (DRUG), CR845 (DRUG).

Who is sponsoring clinical trial NCT00877799?

This trial is sponsored by Cara Therapeutics, which has 23 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00877799's enrollment target sits among peer trials

114 627th of 2000 higher than 1,370 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT00877799, the US trial registry maintained by the National Library of Medicine. NCT00877799 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.