# Optimal Peripheral Nerve Block After Minimally Invasive Colon Surgery

> **NCT04311099** · PHASE4 · COMPLETED · sponsor: **Claus Anders Bertelsen, PhD, MD** · enrollment: 360 (actual)

## Conditions studied

- Pain, Postoperative
- Pain, Abdominal
- Analgesia
- Surgery
- Colon Cancer
- Injection Site

## Interventions

- **DRUG:** Active drug
- **DRUG:** Placebo
- **PROCEDURE:** Injection of Ropivacaine - Ultrasound-guided transverse abdominal plane block
- **PROCEDURE:** Injection of Ropivacaine - Laparoscopic assisted transverse abdominal plane block
- **PROCEDURE:** Injection of placebo - Ultrasound-guided transverse abdominal plane block
- **PROCEDURE:** Injection of placebo - Laparoscopic assisted transverse abdominal plane block

## Key facts

- **NCT ID:** NCT04311099
- **Lead sponsor:** Claus Anders Bertelsen, PhD, MD
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-01-14
- **Primary completion:** 2024-02-08
- **Final completion:** 2024-03-31
- **Target enrollment:** 360 (ACTUAL)
- **Last updated:** 2025-08-07


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04311099

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04311099, "Optimal Peripheral Nerve Block After Minimally Invasive Colon Surgery". Retrieved via AI Analytics 2026-06-26 from https://api.ai-analytics.org/clinical/NCT04311099. Licensed CC0.

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