# Nasal Allergen Challenge Test as a Method to Detect Clinical Reactivity Against Birch Pollen

> **NCT06085963** · NA · COMPLETED · sponsor: **Karolinska Institutet** · enrollment: 89 (actual)

## Conditions studied

- Allergic Rhinitis Due to Pollen

## Interventions

- **DRUG:** ITULAZAX 12 SQ-Bet
- **DRUG:** Placebo tablet
- **DRUG:** Nacl

## Key facts

- **NCT ID:** NCT06085963
- **Lead sponsor:** Karolinska Institutet
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2023-02-01
- **Primary completion:** 2024-12-31
- **Final completion:** 2024-12-31
- **Target enrollment:** 89 (ACTUAL)
- **Last updated:** 2025-09-17


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT06085963

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT06085963, "Nasal Allergen Challenge Test as a Method to Detect Clinical Reactivity Against Birch Pollen". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT06085963. Licensed CC0.

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