# Drug Interaction Between Ritonavir And Sitaxsentan

> **NCT01251848** · PHASE1 · WITHDRAWN · sponsor: **Pfizer**

## Conditions studied

- Pulmonary Arterial Hypertension

## Interventions

- **DRUG:** Sitaxentan
- **DRUG:** Ritonavir
- **DRUG:** Sitaxsentan
- **DRUG:** Ritonavir

## Key facts

- **NCT ID:** NCT01251848
- **Lead sponsor:** Pfizer
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2011-01
- **Primary completion:** 2011-02
- **Final completion:** 2011-02
- **Target enrollment:** 0 (ACTUAL)
- **Last updated:** 2015-03-05


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01251848

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01251848, "Drug Interaction Between Ritonavir And Sitaxsentan". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT01251848. Licensed CC0.

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