# Exploratory Efficacy Study of Guaifenesin in Upper Back Pain

> **NCT01562548** · NA · COMPLETED · sponsor: **GlaxoSmithKline** · enrollment: 78 (actual)

## Conditions studied

- Upper Back Pain

## Interventions

- **DRUG:** Guaifenesin
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT01562548
- **Lead sponsor:** GlaxoSmithKline
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2012-02
- **Primary completion:** 2013-05
- **Final completion:** 2013-05
- **Target enrollment:** 78 (ACTUAL)
- **Last updated:** 2014-06-03


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01562548

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01562548, "Exploratory Efficacy Study of Guaifenesin in Upper Back Pain". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT01562548. Licensed CC0.

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