# A Study to Compare Levels of Capsaicin After Intra-Articular Injection and Topical Application in Patients With Painful Knee Osteoarthritis

> **NCT03576508** · PHASE1 · COMPLETED · sponsor: **Centrexion Therapeutics** · enrollment: 16 (actual)

## Conditions studied

- Knee Osteoarthritis

## Interventions

- **DRUG:** CNTX-4975-05
- **DRUG:** Qutenza
- **DRUG:** Lidocaine (without epinephrine)

## Key facts

- **NCT ID:** NCT03576508
- **Lead sponsor:** Centrexion Therapeutics
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2018-06-25
- **Primary completion:** 2018-09-06
- **Final completion:** 2018-09-06
- **Target enrollment:** 16 (ACTUAL)
- **Last updated:** 2018-11-14


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03576508

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03576508, "A Study to Compare Levels of Capsaicin After Intra-Articular Injection and Topical Application in Patients With Painful Knee Osteoarthritis". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT03576508. Licensed CC0.

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