# Brain Biomarker of Endogenous Analgesia in Patients With Chronic Knee Pain

> **NCT05003323** · — · COMPLETED · sponsor: **University of Pittsburgh** · enrollment: 110 (actual)

## Conditions studied

- Chronic Pain
- Chronic Knee Pain
- Knee Osteoarthritis
- Analgesia

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT05003323
- **Lead sponsor:** University of Pittsburgh
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2021-11-18
- **Primary completion:** 2023-10-20
- **Final completion:** 2023-10-20
- **Target enrollment:** 110 (ACTUAL)
- **Last updated:** 2025-01-13


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05003323

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05003323, "Brain Biomarker of Endogenous Analgesia in Patients With Chronic Knee Pain". Retrieved via AI Analytics 2026-07-09 from https://api.ai-analytics.org/clinical/NCT05003323. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*