# Does the Preoperative Midazolam Dose Affect Postoperative Pain?

> **NCT03534895** · PHASE4 · UNKNOWN · sponsor: **Universidade do Porto** · enrollment: 168 (estimated)

## Conditions studied

- Pain, Postoperative

## Interventions

- **DRUG:** Midazolam Injectable Solution
- **OTHER:** Normal saline
- **PROCEDURE:** Spinal anesthesia
- **PROCEDURE:** Surgery
- **DRUG:** Postoperative analgesia
- **DRUG:** Rescue analgesia
- **DRUG:** Wound infiltration
- **DRUG:** Analgesia at home

## Key facts

- **NCT ID:** NCT03534895
- **Lead sponsor:** Universidade do Porto
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2019-05
- **Primary completion:** 2020-05
- **Final completion:** 2020-08
- **Target enrollment:** 168 (ESTIMATED)
- **Last updated:** 2018-05-23

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03534895

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03534895, "Does the Preoperative Midazolam Dose Affect Postoperative Pain?". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT03534895. Licensed CC0.

---

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