# Safety and Efficacy Study of Sitaxentan Sodium (Thelin™) in Patients With Pulmonary Arterial Hypertension

> **NCT00080457** · PHASE3 · COMPLETED · sponsor: **Encysive Pharmaceuticals** · enrollment: 240 (—)

## Conditions studied

- Pulmonary Hypertension

## Interventions

- **DRUG:** sitaxsentan sodium

## Key facts

- **NCT ID:** NCT00080457
- **Lead sponsor:** Encysive Pharmaceuticals
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2003-05
- **Primary completion:** —
- **Final completion:** 2005-01
- **Target enrollment:** 240 (—)
- **Last updated:** 2007-11-09


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00080457

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00080457, "Safety and Efficacy Study of Sitaxentan Sodium (Thelin™) in Patients With Pulmonary Arterial Hypertension". Retrieved via AI Analytics 2026-06-26 from https://api.ai-analytics.org/clinical/NCT00080457. Licensed CC0.

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