# Study of the Effect of SCH 900538 on Congestion in Subjects With Seasonal Allergic Rhinitis (Study P05031)(COMPLETED)

> **NCT00673062** · PHASE2 · COMPLETED · sponsor: **Merck Sharp & Dohme LLC** · enrollment: 265 (actual)

## Conditions studied

- Seasonal Allergic Rhinitis

## Interventions

- **DRUG:** SCH 900538
- **DRUG:** Pseudoephedrine
- **DRUG:** Placebo Capsules

## Key facts

- **NCT ID:** NCT00673062
- **Lead sponsor:** Merck Sharp & Dohme LLC
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2008-05
- **Primary completion:** 2008-07
- **Final completion:** 2008-07
- **Target enrollment:** 265 (ACTUAL)
- **Last updated:** 2015-11-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00673062

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00673062, "Study of the Effect of SCH 900538 on Congestion in Subjects With Seasonal Allergic Rhinitis (Study P05031)(COMPLETED)". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT00673062. Licensed CC0.

---

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