ClinicalTrials.gg
RecruitingNCT05831345Updated Feb 7, 2025

Intraoperative Methadone for the Prevention of Postoperative Pain

A Phase 3 interventional study of Methadone Hydrochloride and Sufentanil Citrate in Orthopedic Surgery, sponsored by Brugmann University Hospital. Recruiting at 1 site in Belgium. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2025-02-07.

Sponsored by Brugmann University Hospital · Phase 3, Interventional, and Supportive care

From the registry’s dates

  • Primary completion was expected by Dec 2025, 11 months ago, but the record still lists the study as recruiting.
  • Started Feb 2023; still recruiting 3 years 8 months later.
Phase
Phase 3
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The pain felt after orthopedic surgery in the absence of adequate locoregional anesthesia is often insufficiently controlled, especially during the first 24 hours postoperatively.

Methadone, due to its long half-life, may provide better pain control after orthopedic surgery when associated locoregional anesthesia cannot be performed.

It may be impossible to perform loco-regional anesthesia in various contexts: patient refusal, pre-existing neurological impairment, infection at the injection site, coagulopathies, inability to cooperate, total language barrier, allergy to anesthetics, unavailability of equipment (ultrasound, etc.) or equipped room, lack of experience of nursing staff in performing the block and in the postoperative management of the patient.

Intraoperative administration of methadone in these settings may be superior to sufentanil for pain control during the 24 hours post orthopedic surgery, and the pain control provided by methadone does not appear to imply a higher likelihood of adverse events related to opioids.

02

Conditions studied

  • Orthopedic Surgery
03

In context

Lead sponsor

Brugmann University Hospital is the lead sponsor of 117 studies on the registry; 17 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
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

  • Age between 18 and 80 years old
  • ASA 1-3 status
  • Elective partial or total hip and knee arthroplasty

Exclusion criteria

Exclusion Criteria:

  • Patient refusal
  • Preoperative renal failure (serum creatinine > 2 mg/dL or 1.5-fold
  • Increase in basal plasma creatinine or \< 90 ml/min/1.73m2)
  • Significant hepatic dysfunction (PT \<50% or increase in 3 times basal transaminases)
  • Known heart failure
  • Preoperative hemodynamic instability (preoperative use of inotropes or vasopressors)
  • Known methadone or sufentanil allergy
  • Preoperative opioid use or history of opioid abuse
  • Pregnancy and breastfeeding.
Terms in these criteria, in plain language(1)

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.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

05

Study design

Phase
Phase 3
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
80 participants (estimated)

Study arms

  • Active comparator
    S Group

    Patients receiving sufentanil during induction of general anesthesia

    Drug: Sufentanil Citrate

  • Experimental
    M Group

    Patients receiving methadone during induction of general anesthesia

    Drug: Methadone Hydrochloride

Interventions

  • Classic induction of anesthesia (opioid, hypnotic and curare) but the team is blinded to the opioid used (sufentanil or methadone), which is prepared in identical syringes by the pharmacy

  • Classic induction of anesthesia (opioid, hypnotic and curare) but the team is blinded to the opioid used (sufentanil or methadone), which is prepared in identical syringes by the pharmacy

06

What researchers measure

Primary outcomes

  1. Total morphine consumption

    Total morphine consumption

    Time frame: 72 hours

  2. Standard visual analogue scale (VAS)

    Pain is assessed using a standard visual analogue scale (VAS) in 11 points (from 0 (no pain) to 10 (worst pain))

    Time frame: 24 hours

Secondary outcomes

  1. Patient satisfaction

    Patient satisfaction is assessed by means of a questionnaire at the end of hospital stay

    Time frame: 72 hours

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 7, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05831345
Responsible party
Tatiana Besse-Hammer (Head Physician of the Clinical Research Unit, Brugmann University Hospital) — Principal investigator
First posted
Apr 26, 2023
Start date
Feb 28, 2023
Primary completion
Dec 2025 (estimated)
Completion
Dec 2025 (estimated)
Last update
Feb 7, 2025

Study contacts

Riccardo Mora, MD
Contact
riccardo.mora@chu-brugmann.be
00393292199132

Oversight

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

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Studies of the drug tested here: Methadone

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