# The Effect of Pectoral Blocks on Perioperative Pain in Gender Affirmation Top Surgery

> **NCT04474366** · PHASE4 · COMPLETED · sponsor: **University of California, San Francisco** · enrollment: 50 (actual)

## Conditions studied

- Gender Dysphoria
- Opioid Use
- Pain, Postoperative

## Interventions

- **DRUG:** Ropivacaine 0.2% Injectable Solution
- **OTHER:** Saline (0.9%)

## Key facts

- **NCT ID:** NCT04474366
- **Lead sponsor:** University of California, San Francisco
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-06-16
- **Primary completion:** 2022-02-28
- **Final completion:** 2022-04-30
- **Target enrollment:** 50 (ACTUAL)
- **Last updated:** 2023-07-03


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04474366

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04474366, "The Effect of Pectoral Blocks on Perioperative Pain in Gender Affirmation Top Surgery". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT04474366. Licensed CC0.

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