# Effects of Pine Cone Extract on Serum IgE Levels in Perennial Rhinitis

> **NCT04024033** · NA · UNKNOWN · sponsor: **University of South Florida** · enrollment: 36 (estimated)

## Conditions studied

- Perennial Allergic Rhinitis

## Interventions

- **DIETARY_SUPPLEMENT:** pine cone extract
- **OTHER:** placebo

## Key facts

- **NCT ID:** NCT04024033
- **Lead sponsor:** University of South Florida
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2011-03
- **Primary completion:** 2023-10
- **Final completion:** 2023-10
- **Target enrollment:** 36 (ESTIMATED)
- **Last updated:** 2023-05-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04024033

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04024033, "Effects of Pine Cone Extract on Serum IgE Levels in Perennial Rhinitis". Retrieved via AI Analytics 2026-06-16 from https://api.ai-analytics.org/clinical/NCT04024033. Licensed CC0.

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