# Efficacy and Safety of PQ Grass in Subjects With Seasonal Allergic Rhinitis and/or Rhinoconjunctivitis Induced by Grass Pollen

> **NCT05540717** · PHASE3 · COMPLETED · sponsor: **Allergy Therapeutics** · enrollment: 555 (actual)

## Conditions studied

- Seasonal Allergic Rhinitis
- Rhinoconjunctivitis

## Interventions

- **BIOLOGICAL:** PQ Grass
- **BIOLOGICAL:** Placebo

## Key facts

- **NCT ID:** NCT05540717
- **Lead sponsor:** Allergy Therapeutics
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2022-10-11
- **Primary completion:** 2023-11-01
- **Final completion:** 2023-11-01
- **Target enrollment:** 555 (ACTUAL)
- **Last updated:** 2025-04-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05540717

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05540717, "Efficacy and Safety of PQ Grass in Subjects With Seasonal Allergic Rhinitis and/or Rhinoconjunctivitis Induced by Grass Pollen". Retrieved via AI Analytics 2026-07-05 from https://api.ai-analytics.org/clinical/NCT05540717. Licensed CC0.

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