# Proof-of-Principle Study of TC-6499 in the Treatment of Constipation Predominant Irritable Bowel Syndrome (IBS)

> **NCT01149200** · PHASE2 · COMPLETED · sponsor: **Targacept Inc.** · enrollment: 24 (actual)

## Conditions studied

- Irritable Bowel Syndrome

## Interventions

- **DRUG:** TC-6499
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT01149200
- **Lead sponsor:** Targacept Inc.
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2010-05
- **Primary completion:** 2010-10
- **Final completion:** 2010-10
- **Target enrollment:** 24 (ACTUAL)
- **Last updated:** 2013-12-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01149200

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01149200, "Proof-of-Principle Study of TC-6499 in the Treatment of Constipation Predominant Irritable Bowel Syndrome (IBS)". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT01149200. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*