# RISA Extension Study - Long Term Safety

> **NCT00401986** · — · COMPLETED · sponsor: **Boston Scientific Corporation** · enrollment: 14 (actual)

## Conditions studied

- Asthma

## Interventions

- **DEVICE:** Bronchial thermoplasty with the Alair System

## Key facts

- **NCT ID:** NCT00401986
- **Lead sponsor:** Boston Scientific Corporation
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2007-01
- **Primary completion:** 2010-12
- **Final completion:** 2011-02
- **Target enrollment:** 14 (ACTUAL)
- **Last updated:** 2021-02-01


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00401986

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00401986, "RISA Extension Study - Long Term Safety". Retrieved via AI Analytics 2026-07-13 from https://api.ai-analytics.org/clinical/NCT00401986. Licensed CC0.

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