# The Duration of the Suppressive Effects of Desloratadine on Allergen Prick Tests After Discontinuation (P04441)

> **NCT00359138** · PHASE4 · COMPLETED · sponsor: **Organon and Co** · enrollment: 36 (actual)

## Conditions studied

- Hypersensitivity

## Interventions

- **DRUG:** desloratadine
- **DRUG:** levocetirizine
- **DRUG:** Desloratadine placebo tablet
- **DRUG:** Levocetirizine placebo capsule

## Key facts

- **NCT ID:** NCT00359138
- **Lead sponsor:** Organon and Co
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2006-02
- **Primary completion:** 2006-05
- **Final completion:** 2006-05
- **Target enrollment:** 36 (ACTUAL)
- **Last updated:** 2022-02-09


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00359138

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00359138, "The Duration of the Suppressive Effects of Desloratadine on Allergen Prick Tests After Discontinuation (P04441)". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT00359138. Licensed CC0.

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