About this trial
NEFARTHRO is a multicentric randomized controlled trial comparing the effects of discontinuous infusions of nefopam (bolus) versus continuous infusion of intravenous nefopam (via an infusion pump) versus placebo on the opioid-request during the first 24 hours following a Total Hip arthroplasty, as part of multimodal analgesia including at least paracetamol and a Non-Steroidal Anti-Inflammatory Drug (NSAID).
The primary endpoint is cumulative morphine consumption for the first postoperative 24 hours, expressed in mg of iv equivalent morphine, including titration in the Post Anesthesia Care Unit (PACU).
Patients will be followed during 6 months.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patient aged ≥ 18 years, fluent in French.
Planned primary or secondary total hip replacement, regardless of surgical approach or type of prosthesis.
Receiving paracetamol and ketoprofen postoperatively.
Under general anesthesia or spinal anesthesia (without intrathecal morphine).
Disqualifiers
Septic or carcinological surgery
Allergy to paracetamol, nefopam or NSAIDs
Angle-closure glaucoma
Prostate adenoma
Trial design
Parallel
Treatments tested in this trial
Nefopam
Drug20 mg nefopam in 50 ml of saline, during a 30 min infusion, before end of procedure, then a similer bolus every 4 h for 24 h (6 injections in total) + continuous intravenous infusion of placebo (2 mL/h saline)
Nefopam
Drug20 mg nefopam in 50 ml of saline, during a 30 min infusion, before end of procedure, then a bolus of placebo every 4 h for 24 h (6 injections in total) + continuous infusion of 100 mg nefopam over 24 h (in 48 mL saline, 2 mL/h)
NaCl 0.9%
Drug50 ml of saline, during a 30 min infusion, before end of procedure, followed by a bolus of placebo every 4 hours for 24 hours (6 injections in all) + continuous infusion of placebo (2 mL/h of physiological saline)
Treatment groups
Trial outcomes
Primary outcomes
Cumulative morphine consumption from the end of surgery (Day 0 - Hour 0) to the first 24 hours after surgery, expressed in mg of intravenous morphine (including titration in the Post-Anesthesia care Unit PACU).
Secondary outcomes
Maximum self-assessed pain using the Numeric Rating Scale ranging from 0 (no pain) to 10 (maximum pain) at rest in the PACU, at rest and on walking between PACU discharge and Hour 24, at Hour 24, and at hospital discharge.
Time to return to walking.
Time to leave room.
Time to climb stairs.
Sponsors and contacts
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