# Intraoperative Ketamine on Chronic Pain After Mastectomy

> **NCT02729805** · PHASE4 · SUSPENDED · sponsor: **The University of Hong Kong** · enrollment: 135 (estimated)

## Conditions studied

- Chronic Pain

## Interventions

- **DRUG:** Saline
- **DRUG:** Ketamine 0.5mg/kg
- **DRUG:** Ketamine 0.75mg/kg

## Key facts

- **NCT ID:** NCT02729805
- **Lead sponsor:** The University of Hong Kong
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** SUSPENDED
- **Start date:** 2015-08-18
- **Primary completion:** 2024-06
- **Final completion:** 2024-06
- **Target enrollment:** 135 (ESTIMATED)
- **Why stopped:** Not enough patients
- **Last updated:** 2023-05-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02729805

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02729805, "Intraoperative Ketamine on Chronic Pain After Mastectomy". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT02729805. Licensed CC0.

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