ClinicalTrials.gg
Not yet recruitingNCT07739641Updated Jul 31, 2026

A COMPARATIVE STUDY BETWEEN OPIOID-FREE GENERAL ANAESTHESIA AND OPIOID-BASED GENERAL ANAESTHESIA ON THE QUALITY OF RECOVERY IN PATIENTS UNDERGOING ELECTIVE LAPAROSCOPIC HYSTRECTOMY: A Randomized Trial

An interventional study of Fentanyl-Based Anesthesia and Opioid-Free Anaesthesia (Dexmedetomidine, Ketamine, and Lidocaine) in Post Operative Recovery, Post Operative Nausea and Vomiting (PONV) and Post Operative Analgesia, sponsored by Ain Shams University. Not yet recruiting at 1 site in Egypt. Open to female participants aged 40 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-07-31.

Sponsored by Ain Shams University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
66
Allocation
Randomized
Ages
40 Years to 65 Years
Sex
Female
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 24 studies in Vomiting with a site in Egypt — 2 open to participants now, 2 under way, none of them phase 3. Vomiting · Egypt.

Planned enrollment
15th of 23
66 · median 90
Started
2026
the only one that year
No phase
12 of 24
2 open now
Registered
23rd of 24
by date
Lead sponsor
4 of 24
Ain Shams University

Among the 24 studies in Vomiting with a site in Egypt, this one is the 15th largest by planned enrollment of the 23 interventional ones, is the only one that started in 2026, is one of 12 with no phase, and was the 23rd registered.

By phase

24 studies; the count open now beside each. This study's row is marked.

No phasethis study12 · 2 open
Phase 44 · 0 open
Phase 33 · 0 open
Observational1 · 0 open
Phase 11 · 0 open
Phase 1/21 · 0 open
Phase 21 · 0 open
Phase 2/31 · 0 open

By the year they started

First in 2015; this study’s year is marked. 1 started in 2026.

Size and results

Median enrollment 90 across the 23 interventional studies, 75 across the 1 observational. Of the 18 that completed or were terminated, 0 (0%) have results posted.

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02

Study summary

the intent of this study To compare the efficacy of opioid free general anaesthesia versus opioid based general anaesthesia to achieve enhanced recovery regarding post-operative pain and post-operative nausea and vomiting episodes in patients undergoing elective laparoscopic hysterectomy

Read the detailed description

This prospective randomised controlled study aims to evaluate the effects of opioid-free anaesthesia (OFA) compared with conventional opioid-based anaesthesia (OBA) in adult patients undergoing elective surgery under general anaesthesia. Eligible patients will be randomly assigned into two equal groups. The OFA group will receive a multi modal opioid-free anaesthetic regimen consisting of dexmedetomidine, ketamine, and lidocaine administered as loading doses followed by continuous infusions. The OBA group will receive fentanyl-based anaesthesia according to a standardised protocol. Both groups will receive similar induction agents, muscle relaxants, anti emetic prophylaxis, and postoperative analgesic regimens.

Preoperative hemodynamic parameters, including heart rate and blood pressure, will be recorded intraoperatively and during the postoperative period. Postoperative recovery will be assessed using the SAMPE recovery room discharge checklist(Stability, Awake and Oriented, Motor, Pain, and Emesis) recovery room discharge checklist, an eight-item score assessing vital signs stability, level of consciousness, spontaneous ventilation, oxygen saturation, pain control, absence of nausea and vomiting, absence of bleeding, and absence of motor block. Patients will be discharged from the post-anaesthesia care unit (PACU) upon achieving a SAMPE score of 8.. Pain intensity will be evaluated using the Visual Analogue Scale (VAS) at predetermined postoperative time points (0, 1, 6, and 12 hours). The incidence and severity of postoperative nausea and vomiting (PONV) during the first 24 postoperative hours will be recorded and graded using a standardised PONV severity score. Additional outcomes include time to first rescue analgesia, total postoperative opioid consumption, and the occurrence of opioid-related adverse events such as postoperative hypoxemia.

Furthermore, serum interleukin-6 (IL-6) levels will be measured preoperative, immediately after skin incision, and at 6 and 12 hours after induction of anaesthesia as a biomarker of the surgical stress response. The study seeks to determine whether opioid-free anaesthesia can improve postoperative recovery, reduce PONV and opioid requirements, and attenuate the preoperative stress response compared with conventional opioid-based anaesthesia.

03

Conditions studied

  • Post Operative Recovery
  • Post Operative Nausea and Vomiting (PONV)
  • Post Operative Analgesia

Browse trials for

04

Who can participate

Ages eligible
40 Years to 65 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Undergoing a scheduled laparoscopic hysterectomy surgery under general anaesthesia.
  • Age group: 40-65 years old.
  • \<35.
  • .

Exclusion criteria

Exclusion Criteria:

  • Emergency hysterectomy.
  • Allergy to any of the drugs used in the study.
  • HR \< 50 bpm (chronic treatment by beta blockers, heart block patients).
  • Alcohol or drug abuse.
  • Psychiatric disease.
  • Liver impairment. Kidney impairment
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

ASA physical status

The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
66 participants (estimated)

Study arms

  • Active comparator
    Opioid-Based Anaesthesia (OBA)

    Participants will receive conventional fentanyl-based anaesthesia during surgery in addition to standardized general anaesthesia.

    Drug: Fentanyl-Based Anesthesia

  • Active comparator
    Opioid-Free Anaesthesia (OFA) Group

    Participants will receive opioid-free anaesthesia consisting of dexmedetomidine, ketamine, and lidocaine administered as loading doses followed by continuous intravenous infusions during surgery, in addition to standardized general anaesthesia.

    Drug: Opioid-Free Anaesthesia (Dexmedetomidine, Ketamine, and Lidocaine)

Interventions

  • DrugFentanyl-Based Anesthesia

    Fentanyl will be administered intravenously as the opioid component of balanced general anaesthesia. Loading dose of 2 mic/kg I.V. followed by continuous infusion of three syringes, one with fentanyl infusion 0.5mic/kg/hr, and two syringes with normal saline. will receive IV acetaminophen (1 g) and ketrolac 30mg 10 minutes before incision closure. Postoperative Analgesia: All patients will receive IV acetaminophen 1 g /8h, ketrolac 30 mg/8h and rescue doses of pethideine 0.5 mg/kg IM if VAS score is ≥ 4.

  • DrugOpioid-Free Anaesthesia (Dexmedetomidine, Ketamine, and Lidocaine)

    Dexmedetomidine: Loading dose of 1 µg/kg IV over 10 min before induction, followed by continuous infusion at 0.4 µg/kg/h . Ketamine: Loading dose of 0.25mg/kg followed by continuous infusion of ketamine at 0.1mg/kg/hr . Lidocaine: loading dose of 1.5mg/kg/hr followed by maintainance of 1mg/kg/hr. All three infusions to be stopped 30 minutes before skin closure will receive IV acetaminophen (1 g) and ketrolac 30mg 10 minutes before incision closure. Postoperative Analgesia: All patients will receive IV acetaminophen 1 g /8h, ketrolac 30 mg/8h and rescue doses of pethideine 0.5 mg/kg IM if VAS score is ≥ 4.

06

What researchers measure

Primary outcomes

  1. Incidence and Severity of Postoperative Nausea and Vomiting (PONV)

    Assessment of the incidence and severity of postoperative nausea and vomiting using a standardized PONV severity score.

    Time frame: Within the first 24 hours postoperative.

Secondary outcomes

  1. Postoperative Pain Score

    Assessment of postoperative pain using the Visual Analogue Scale (VAS). minimum better score 0 maximum worse score 10.

    Time frame: At 0, 1, 6, and 12 hours postoperative.

  2. Time to First Rescue Analgesia

    Time elapsed from the end of surgery until the patient requires the first rescue analgesic.

    Time frame: Within the first 24 hours postoperative.

  3. Total Postoperative Opioid Consumption

    Total amount of rescue opioid analgesics administered after surgery.

    Time frame: Within the first 24 hours postoperative .

  4. Post-Anaesthesia Recovery Score SAMPE(score of ambulatory patients in the recovery room )

    Assessment of recovery using the SAMPE(score of ambulatory patients in the recovery room ) discharge checklist evaluating vital signs stability, level of consciousness, spontaneous ventilation, oxygen saturation, pain control, absence of nausea and vomiting, absence of bleeding, and absence of motor block minimum worse score 0 maximum better score 8 .

    Time frame: perioperative

  5. Prioperative Hemodynamic Parameters

    Assessment of heart rate changes during and after surgery.

    Time frame: Intraoperatively and during the immediate postoperative period.

  6. Serum Interleukin-6 (IL-6) Levels

    Measurement of serum IL-6 concentration as a biomarker of the perioperative stress response.

    Time frame: Preoperative, immediately after skin incision, and at 6 and 12 hours after induction of anaesthesia.

  7. Opioid-Related Adverse Events

    Incidence of opioid-related complications, including postoperative hypoxemia.

    Time frame: Within the first 24 hours postoperative.

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Aug 2026; primary completion for Feb 2027, 5 months later.

Of 131 non-industry interventional studies with no phase under Vomiting, half reached primary completion within 13 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 29. This study's planned 5 months is below that.

Counting every sponsor, half of 134 studies reached it within 13 months; a quarter within 6 and three quarters within 31.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 5, 2026
First posted
Jul 31, 2026
StartEst.
Aug 22, 2026
Primary completionEst.
Feb 15, 2027
CompletionEst.
Apr 20, 2027
Last update
Jul 31, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 31, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07739641
Responsible party
Sponsor
First posted
Jul 31, 2026
Start date
Aug 22, 2026 (estimated)
Primary completion
Feb 15, 2027 (estimated)
Completion
Apr 20, 2027 (estimated)
Last update
Jul 31, 2026

Study contacts

yomna emad Youssef, MBBCH
Contact
yomnaelsayed@med.asu.edu.eg
01026616629
yomna emad youssef, MBBCH
Contact
yomnayoussef95@gmail.com
01145211869
yomna Emad Youssef
principal investigator · Ainshams University Hospitals

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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