# Effect of a Nasal Bolus Allergen Challenge on Inflammatory Markers

> **NCT00483353** · PHASE1 · COMPLETED · sponsor: **Pfizer** · enrollment: 6 (—)

## Conditions studied

- Seasonal Allergic Rhinitis

## Interventions

- **PROCEDURE:** Intra-nasal allergen challenge with Phleum pratense.
- **PROCEDURE:** Collection of nasal effluent using filter paper.
- **PROCEDURE:** Measurement of nasal congestion using acoustic rhinometry.

## Key facts

- **NCT ID:** NCT00483353
- **Lead sponsor:** Pfizer
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2007-07
- **Primary completion:** —
- **Final completion:** —
- **Target enrollment:** 6 (—)
- **Last updated:** 2008-06-17


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00483353

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00483353, "Effect of a Nasal Bolus Allergen Challenge on Inflammatory Markers". Retrieved via AI Analytics 2026-07-20 from https://api.ai-analytics.org/clinical/NCT00483353. Licensed CC0.

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