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Intrathecal Morphine for Postoperative Analgesia in Major Laparoscopic Abdominal Surgery, a IMPACT-Scope Trial

Intrathecal Morphine for Postoperative Analgesia in Major Laparoscopic Abdominal Surgery (IMPACT-Scope): a Randomised, Sham-controlled, Blinded, Multicentre Clinical Trial

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06666985
Acronym
IMPACT-Scope
Enrollment
700
Registered
2024-10-31
Start date
2024-12-16
Completion date
2026-10-01
Last updated
2026-08-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patients Undergoing Major Laparoscopic Abdominal Surgery

Keywords

laparoscopic surgery, intrathecal morphine, quality of recovery

Brief summary

The goal of this clinical trial is to learn the clinical and cost effectiveness of intrathecal morphine (ITM) in addition to usual care as a postoperative pain relief strategy following major laparoscopic abdominal surgery compared with current usual care. The main questions it aims to answer are: An enhanced analgesic technique, consisting of ITM in addition to usual care , improves the postoperative quality of recovery at day 1 after surgery by at least 6 points on the 15-item quality of recovery questionnaire (QoR-15) compared to usual care alone, in patients undergoing major laparoscopic abdominal surgery? Researchers will compare ITM + Usual care to Sham ITM + Usual Care (The sham ITM mimics the ITM procedure, but the dura is not breached) to see if ITM works to postoperative pain relief. Participants will: Receive ITM + Usual care or Sham ITM + Usual care on surgery day Have interview with outcome assessors and complete the CRFs on the day of surgery, postoperative day 1, day 2, day 3 and up to postoperative day 30

Interventions

DRUGITM + Usual Care

The participants allocated to this group will receive ITM (Intrathecal Morphine) in addition to usual care with opioid-based PCA(Patient-Controlled Analgesia). ITM consists of an intrathecal injection of 300 micrograms (0.3mg) of preservative-free morphine.Usual care involves postoperative analgesia with opioid-based PCA without postoperative continuous infusion of opioids. No other drugs other than opioids are allowed in the PCA.

DRUGSham ITM + Usual Care

The sham ITM mimics the ITM procedure, but the dura is not breached.

Sponsors

First Affiliated Hospital, Sun Yat-Sen University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age 18 years or over AND able to give informed consent (with interpreters provided where necessary) * Elective (i.e., planned) laparoscopic or robotic abdominal surgery within one or more of the following specialties: * Colorectal * Gynaecology * Hepato-biliary (including pancreatic surgery) * Upper gastrointestinal * Urology/Renal * Anticipated duration of surgery ≥ 2 hours (from knife-to-skin to end of wound closure) * Anticipated hospital stay ≥ 24 hours (from the end of surgery)

Exclusion criteria

* Allergy to study drugs * Anatomical factors making intrathecal injection impossible * Anticipated requirement for postoperative invasive ventilation * American Society of Anesthesiologists (ASA) Score \<IV * Coagulopathies (i.e. INR\>1.3 and/or platelet count\<100×10\^9/L) * Cognitive impairment leading to inability to complete the study processes and questionnaires * Drugs affecting coagulation (except aspirin), which have not been suitably and timely paused preoperatively * Infection near the planned site of intrathecal injection * Ongoing sepsis * Patients previously included in the trial and who need to return to theatre for a new abdominal surgery * Pregnancy or breast feeding

Design outcomes

Primary

MeasureTime frameDescription
Quality of recoveryPostoperative day 1Quality of recovery is measured using the 15-item Quality of Recovery Questionnaire (QoR-15)

Secondary

MeasureTime frameDescription
Quality of recoveryPostoperative day 2 , Postoperative day 3 (or at discharge, if earlier)Quality of recovery is measured using the 15-item Quality of Recovery Questionnaire (QoR-15)
Quality of lifePostoperative day 1, Postoperative day 2, Postoperative day 3 (or at discharge, if earlier) and Postoperative day 30Quality of life is measured using the European Quality of life-5 Dimensions-5 Level (EQ-5D-5L)
Pain scores in the post-anaesthesia recovery unitDay of surgeryPain scores is measured using a numeric rating scale (NRS 0-10)
Worst pain scorePostoperative day 1, Postoperative day 2, and Postoperative day 3 (or at discharge, if earlier)Worst pain score is measured using a numeric rating scale (NRS 0-10)
Anaesthesia-related discomfort (nausea and/or vomiting, drowsiness, shivering, pruritus)Postoperative day 1, Postoperative day 2, Postoperative day 3 (or at discharge, if earlier)Anaesthesia-related discomfort is measured using a bespoke questionnaire
Patient satisfactionPostoperative day 1, Postoperative day 2, Postoperative day 3 (or at discharge, if earlier)Patient satisfaction is measured using a bespoke questionnaire
Time in minutes to tracheal extubation from the end of anaesthesiaFrom end of anesthesia to tracheal extubation on day of surgery or from end of anesthesia to discharge day (for ICU patients) up to 48 hours
Number of pain management visitsPostoperative day 1, Postoperative day 2, Postoperative day 3(or at discharge, if earlier), day of discharge and Postoperative day 30
Postoperative pulmonary complicationsPostoperative day 1, Postoperative day 2 and Postoperative day 3 (or at discharge, if earlier)Postoperative pulmonary complications is measured according to the Standardized Endpoints for Perioperative Medicine and the Core Outcome Measures in Perioperative and Anaesthetic Care (StEP-COMPAQ) definition
Respiratory depressionDay of surgery, Postoperative day 1, Postoperative day 2, Postoperative day 3 (or at discharge, if earlier)Respiratory depression is defined as respiratory rate less than 8 breaths per minute AND need for medical intervention
Total opioid consumptionDuring operation and up to Postoperative day 30Total opioid consumption is transformed into oral morphine equivalent daily dose
Postoperative mobilisationPostoperative day 1,Postoperative day 2, Postoperative day 3 (or at discharge, if earlier)Postoperative mobilisation is ability to transfer from bed to chair, with or without assistance
Doses of antiemetics administered postoperatively (number of administration)Day of Surgery, Postoperative day 1, Postoperative day 2, Postoperative day 3 (or at discharge, if earlier)
Length of Hospital Stay1 Day after surgeryLength of Hospital Stay (in days) is number of days from starting day of surgery to the day of discharge, calculated as discharge date - surgery date + 1 day
Days at Home and well After Surgery (DAH-30)Postoperative day 30
MortalityPostoperative day 30

Countries

China

Contacts

CONTACTXia Feng
fengxia@mail.sysu.edu.cn86-13688877856
CONTACTJiangtao Zhou
impact_scope@163.com

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 29, 2026