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Status unknownNCT04314505Updated Jul 21, 2020

Opioid-Sparing Protocol Comparing With Opioid-based Protocol After Bilateral Total Knee Arthroplasty

A Phase 4 interventional study of Opioid-Sparing Protocol and Opioid-Based Patient Controlled Analgesia in Knee Replacement, Postoperative Pain and Opioid Use, sponsored by Taipei Veterans General Hospital, Taiwan. Status unknown at 1 site in Taiwan. Open to participants aged 20 Years to 90 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-07-21.

Sponsored by Taipei Veterans General Hospital, Taiwan · Phase 4, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Jul 2020), so the status shown — last known as Recruiting — may be out of date.
Phase
Phase 4
Study type
Interventional
Enrollment
56
Allocation
Randomized
Ages
20 Years to 90 Years
Sex
All
01

Study summary

The concern for the opioid use in the total knee arthroplasty continues to rise in recent decades. Historically, the total knee arthroplasty consumed high doses opioids in the postoperative periods. Compared to the Opioid-Based patient controlled analgesia(PCA), the opioid-sparing protocol may have benefits to decrease the concerns of the opioid use and opioid-related complication and provides the equivalent efficacy for pain control. The purpose of this trial in to provide a novel opioid-sparing protocol (OSP) to evaluate the efficacy for pain control and reducing the immediate postoperative opioid consumption.

02

Conditions studied

  • Knee Replacement
  • Postoperative Pain
  • Opioid Use

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Keywords

  • Bilateral Total Knee Arthroplasty
  • Opioid Use
  • Opioid Sparing
  • Postoperative pain
03

In context

Pain, Postoperative

5,089 studies on the registry are indexed under Pain, Postoperative; 1,137 are open to participants now.

This study's planned enrollment of 56 is below the median of 75 across 4,341 interventional studies indexed under Pain, Postoperative.

Browse Pain, Postoperative studies →

Lead sponsor

Taipei Veterans General Hospital, Taiwan is the lead sponsor of 325 studies on the registry; 72 are open to participants now.

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

04

Who can participate

Ages eligible
20 Years to 90 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • patient with bilateral advanced knee osteoarthritis undergoing simultaneous bilateral total knee arthroplasty surgery
  • willing to participate in this study and randomly allocated to either opioid-sparing protocol or PCA protocol.

Exclusion criteria

Exclusion Criteria:

  • patient who refused to participate or with contraindication or hypersensitivity to any of the study drugs
  • chronic pain disorder (exceeding 50 mg oral morphine equivalence per day at time of recruitment)
  • substance abuse (e.g. alcoholism)
  • severe renal impairment.
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
56 participants (estimated)

Study arms

  • Experimental
    Opioid Sparing Protocol

    Preemptive(before incision): Parecoxib sodium 40 mg Postoperative: Parecoxib sodium 40 mg was given intravenously every 12 hours for 4 more doses.

    Drug: Opioid-Sparing Protocol

  • Active comparator
    Opioid Based Patient Controlled Analgesia

    Preemptive(before incision) and Postoperative: the initial setting was 0.01mg/kg\*hour, patient-controlled dose 2 mg, lock-out 5 minutes and limited 40mg in each 4 hours; adjusted by the PCA staff

    Drug: Opioid-Based Patient Controlled Analgesia

Interventions

  • DrugOpioid-Sparing Protocol

    After a general anesthesia procedure was performed, an experienced anesthesiologist performed ultrasound guided adductor canal block procedures on both knees. In the opioid-sparing group, a dose of Parecoxib sodium 40 mg was administrated through intravenous route before the incision. After the surgery, Parecoxib sodium 40 mg was given intravenously every 12 hours for 4 more doses. Before the wound closure, the periarticular injection (each side 10 ml of 0.25% Bupivacaine) was done. The total dosage would be recorded in the device. All patients received oral paracetamol 500mg, 4 times a day and oral celecoxib 200mg, 2 times a day after surgery.

    Also known as: OSP Protocol

  • DrugOpioid-Based Patient Controlled Analgesia

    After a general anesthesia procedure was performed, an experienced anesthesiologist performed ultrasound guided adductor canal block procedures on both knees. The patient was informed that the intravenous bolus of rescue morphine (4mg) was available every 4 hours if the pain was intolerable. In the PCA group, the device was applied before incision and the initial setting was 0.01mg/kg\*hour, patient-controlled dose 2 mg, lock-out 5 minutes and limited 40mg in each 4 hours. After the surgery, the staff of PCA group would visit the patients and adjusted the dosage. The PCA was removed after 72 hours from the surgery. Before the wound closure, the periarticular injection (each side 10 ml of 0.25% Bupivacaine) was done. The total dosage would be recorded in the device. All patients received oral paracetamol 500mg, 4 times a day and oral celecoxib 200mg, 2 times a day after surgery.

    Also known as: PCA Protocol

06

What researchers measure

Primary outcomes

  1. Pain scores using numerical rating scale (VAS, 0 to 10) at rest

    Post-operative 6 hours

    Time frame: Post-operative 6 hours after surgery

  2. Pain scores using numerical rating scale (VAS, 0 to 10) at rest

    Post-operative 12 hours

    Time frame: Post-operative 12 hours after surgery

  3. Pain scores using numerical rating scale (VAS, 0 to 10) at rest

    Post-operative 24 hours

    Time frame: Post-operative 24 hours after surgery

  4. Pain scores using numerical rating scale (VAS, 0 to 10) at rest

    Post-operative 48 hours

    Time frame: Post-operative 48 hours after surgery

  5. Pain scores using numerical rating scale (VAS, 0 to 10) at rest

    Post-operative 72 hours

    Time frame: Post-operative 72 hours after surgery

  6. Pain scores using numerical rating scale (VAS, 0 to 10) at motion

    Post-operative 24 hours

    Time frame: Post-operative 24 hours after surgery

  7. Pain scores using numerical rating scale (VAS, 0 to 10) at motion

    Post-operative 48 hours

    Time frame: Post-operative 48 hour hours after surgery

  8. Pain scores using numerical rating scale (VAS, 0 to 10) at motion

    Post-operative 72 hours

    Time frame: Post-operative 72 hour hours after surgery

Secondary outcomes

  1. maximum angle of continuous passive motion (CPM) as tolerated (Degrees)

    recorded at post-operative 24 hours, 48 hours and 72 hours

    Time frame: 0-72 hours after surgery

  2. Cumulative morphine consumption(mg)

    recorded at post-operative 24 hours, 48 hours and 72 hours

    Time frame: 0-72 hours after surgery

  3. drug-related (opioid) adverse events

    nausea/vomiting, dizziness, urinary retention, pruritus, dry mouth, constipation, dyspepsia, GI bleeding, pitting edema over lower extremities, cardiovascular event, respiratory depression, delirium or coma

    Time frame: 0-72 hours after surgery

  4. Satisfaction scale (0-100 points)

    satisfaction with regard to the efficacy and safety of the pain management protocol.

    Time frame: postoperative 2 weeks after surgery

  5. Length of hospital stay (LOS) (Days)

    Time from admission to discharge

    Time frame: After surgery until discharge (about 3-5 days after surgery)

07

Study locations

1 of 1 sites recruiting
  • Dep. of Orthopedics and Traumatology, Taipei Veterans General Hospital
    Taipei city, Taipei 112, Taiwan
    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 Jul 21, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04314505
Lead sponsor
Taipei Veterans General Hospital, Taiwan
Responsible party
Sponsor
First posted
Mar 19, 2020
Start date
Mar 20, 2020
Primary completion
Jun 20, 2020
Completion
Aug 20, 2020 (estimated)
Last update
Jul 21, 2020

Study contacts

Hsuan-Hsiao Ma, M.D.
Contact
tyc20192@gmail.com
02-28717557
Shang-Wen Tsai, M.D.
study director · Department of Orthopaedic and Traumatology, Taipei Veterans General Hospital

Oversight

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

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This study is status unknown, as verified in Jul 2020. You cannot join it, but the record below documents what was studied.

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