# Testing a Novel Smartphone Application for Smoking Cessation With the Oklahoma Helpline

> **NCT05539209** · NA · COMPLETED · sponsor: **University of Oklahoma** · enrollment: 512 (actual)

## Conditions studied

- Smoking Cessation

## Interventions

- **BEHAVIORAL:** OKquit
- **BEHAVIORAL:** Standard Helpline Care

## Key facts

- **NCT ID:** NCT05539209
- **Lead sponsor:** University of Oklahoma
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2022-09-13
- **Primary completion:** 2025-09-29
- **Final completion:** 2025-09-29
- **Target enrollment:** 512 (ACTUAL)
- **Last updated:** 2025-10-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05539209

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05539209, "Testing a Novel Smartphone Application for Smoking Cessation With the Oklahoma Helpline". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT05539209. Licensed CC0.

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