# A 26-week Extension of the ZRHR-ERS-09-US Study Evaluating Biological and Functional Changes in Healthy Smokers After Switching to THS 2.2

> **NCT02649556** · NA · COMPLETED · sponsor: **Philip Morris Products S.A.** · enrollment: 672 (actual)

## Conditions studied

- Smoking

## Interventions

- **OTHER:** THS 2.2
- **OTHER:** CC

## Key facts

- **NCT ID:** NCT02649556
- **Lead sponsor:** Philip Morris Products S.A.
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2015-09-30
- **Primary completion:** 2017-03-13
- **Final completion:** 2017-12-20
- **Target enrollment:** 672 (ACTUAL)
- **Last updated:** 2020-12-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02649556

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02649556, "A 26-week Extension of the ZRHR-ERS-09-US Study Evaluating Biological and Functional Changes in Healthy Smokers After Switching to THS 2.2". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT02649556. Licensed CC0.

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