# A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study of the Relationship Between Intraoperative Intravenous Acetaminophen and Postoperative Opioid Avoidance for Ambulatory Surgical Procedures

> **NCT01231191** · PHASE4 · WITHDRAWN · sponsor: **University of California, San Diego**

## Conditions studied

- Postoperative Pain
- Intraoperative and Postoperative Opioid Requirements

## Interventions

- **DRUG:** Intravenous acetaminophen
- **DRUG:** Intravenous placebo

## Key facts

- **NCT ID:** NCT01231191
- **Lead sponsor:** University of California, San Diego
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** —
- **Primary completion:** —
- **Final completion:** —
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** study not funded
- **Last updated:** 2012-03-08

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01231191

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01231191, "A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study of the Relationship Between Intraoperative Intravenous Acetaminophen and Postoperative Opioid Avoidance for Ambulatory Surgical Procedures". Retrieved via AI Analytics 2026-06-30 from https://api.ai-analytics.org/clinical/NCT01231191. Licensed CC0.

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