NCT07485803

Brief Summary

The goal of this study is to determine whether one dose of IV methadone given right before surgery will help patients' pain management after a total knee replacement and reduce the amount of pain medications taken in the weeks after surgery.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
192

participants targeted

Target at P50-P75 for phase_4

Timeline
24mo left

Started Jun 2026

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 17, 2026

Completed
3 days until next milestone

First Posted

Study publicly available on registry

March 20, 2026

Completed
2 months until next milestone

Study Start

First participant enrolled

June 1, 2026

Expected
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2028

2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2028

Last Updated

March 20, 2026

Status Verified

March 1, 2026

Enrollment Period

1.8 years

First QC Date

March 17, 2026

Last Update Submit

March 17, 2026

Conditions

Keywords

pain managementTKAmethadone

Outcome Measures

Primary Outcomes (1)

  • Opioid use for 48 hours post-operatively

    Opioid use will be calculated using morphine milligram equivalents (MME). Patients will keep a log to track opioid consumption.

    48 hours after TKA procedure

Secondary Outcomes (7)

  • Defense and Veterans Pain Scale

    2 weeks after TKA procedure

  • Opioid-Related Symptom Distress Scale (ORSDS)

    2 weeks after TKA procedure

  • Pittsburgh Sleep Quality Index

    2 weeks after TKA procedure

  • Total opioid usage over 2 weeks post-operatively

    2 weeks after TKA procedure

  • Knee Society Score

    2 weeks after TKA procedure

  • +2 more secondary outcomes

Study Arms (2)

Methadone

EXPERIMENTAL

Patient will receive one perioperative dose of IV methadone prior to their surgical procedure in addition to standard of care medications.

Drug: Methadone

No medication

NO INTERVENTION

Patient will not receive only the standard of care medications for their procedure.

Interventions

Subjects randomized to receive methadone will be given one dose of methadone 0.15mg/kg intravenously dosed based on ideal body weight administered by the anesthesia team prior to surgical incision

Methadone

Eligibility Criteria

Age21 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Provision of signed and dated informed consent from
  • Stated willingness to comply with all study procedures and availability to attend all required visits for the duration of the study.
  • Age 21- 75
  • Unilateral total knee arthroplasty at Colorado Joint Replacement
  • All individuals will be screened for drug use (opioid use, illicit drug use) at their preoperative appointment
  • For females of reproductive potential: use of highly effective contraception for at least 1 month prior to screening and agreement to use such a method during study participation.

You may not qualify if:

  • Narcotic use in the past 6 weeks
  • Current or previous history of drug and alcohol abuse
  • Tobacco use in the previous 90 days
  • Treatment with another investigational drug
  • Patients that cannot receive spinal anesthesia
  • Patients that cannot receive the standardized multimodal pain medications (i.e. Tylenol, gabapentin and meloxicam)'
  • Patients that are not able to go home after leaving the hospital and require a short-term rehabilitation facility
  • Obstructive sleep apnea
  • Morbid obesity (BMI \>40)
  • Patients with liver disease.
  • Significant kidney disease - stage 3 CKD or greater
  • Pregnant or nursing females
  • Baseline QTc \>480
  • severe COPD (GOLD 3 or 4)
  • home oxygen requirement

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (7)

  • Kharasch ED. Intraoperative methadone: rediscovery, reappraisal, and reinvigoration? Anesth Analg. 2011 Jan;112(1):13-6. doi: 10.1213/ANE.0b013e3181fec9a3. No abstract available.

    PMID: 21173206BACKGROUND
  • Komen H, Brunt LM, Deych E, Blood J, Kharasch ED. Intraoperative Methadone in Same-Day Ambulatory Surgery: A Randomized, Double-Blinded, Dose-Finding Pilot Study. Anesth Analg. 2019 Apr;128(4):802-810. doi: 10.1213/ANE.0000000000003464.

    PMID: 29847382BACKGROUND
  • Friesgaard KD, Brix LD, Kristensen CB, Rian O, Nikolajsen L. Clinical effectiveness and safety of intraoperative methadone in patients undergoing laparoscopic hysterectomy: a randomised, blinded clinical trial. BJA Open. 2023 Aug 5;7:100219. doi: 10.1016/j.bjao.2023.100219. eCollection 2023 Sep.

    PMID: 37638083BACKGROUND
  • Morris BJ, Mir HR. The opioid epidemic: impact on orthopaedic surgery. J Am Acad Orthop Surg. 2015 May;23(5):267-71. doi: 10.5435/JAAOS-D-14-00163.

    PMID: 25911660BACKGROUND
  • Menendez ME, Ring D, Bateman BT. Preoperative Opioid Misuse is Associated With Increased Morbidity and Mortality After Elective Orthopaedic Surgery. Clin Orthop Relat Res. 2015 Jul;473(7):2402-12. doi: 10.1007/s11999-015-4173-5. Epub 2015 Feb 19.

    PMID: 25694266BACKGROUND
  • Cancienne JM, Patel KJ, Browne JA, Werner BC. Narcotic Use and Total Knee Arthroplasty. J Arthroplasty. 2018 Jan;33(1):113-118. doi: 10.1016/j.arth.2017.08.006. Epub 2017 Aug 17.

    PMID: 28887020BACKGROUND
  • Li WT, Bell KL, Yayac M, Barmann JA, Star AM, Austin MS. A Postdischarge Multimodal Pain Management Cocktail Following Total Knee Arthroplasty Reduces Opioid Consumption in the 30-Day Postoperative Period: A Group-Randomized Trial. J Arthroplasty. 2021 Jan;36(1):164-172.e2. doi: 10.1016/j.arth.2020.07.060. Epub 2020 Jul 30.

    PMID: 33036845BACKGROUND

MeSH Terms

Conditions

Agnosia

Interventions

Methadone

Condition Hierarchy (Ancestors)

Perceptual DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

KetonesOrganic Chemicals

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD

Study Record Dates

First Submitted

March 17, 2026

First Posted

March 20, 2026

Study Start (Estimated)

June 1, 2026

Primary Completion (Estimated)

April 1, 2028

Study Completion (Estimated)

June 1, 2028

Last Updated

March 20, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share