Skip to content

Dextromethorphan for Treatment of Postoperative Pain

A Randomized, Placebo-Controlled Study to Evaluate the Efficacy of Perioperative Dextromethorphan Compared to Placebo for the Treatment of Postoperative Pain

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05278494
Enrollment
160
Registered
2022-03-14
Start date
2022-09-15
Completion date
2026-12-31
Last updated
2026-03-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Post-operative Pain

Brief summary

A Randomized, Placebo-Controlled Study to Evaluate the Efficacy of Perioperative Dextromethorphan compared to Placebo for the Treatment of Postoperative Pain

Detailed description

There is extensive preclinical evidence that dextromethorphan has an analgesic effect in patients with pain of traumatic origin. The primary objective is to of this study is to evaluate the efficacy of perioperative dextromethorphan compared to placebo for postoperative pain in patients undergoing total knee arthroplasty (TKA). This is a single-institution, multi-dose, randomized, placebo-controlled, trial to evaluate the efficacy of perioperative dextromethorphan compared to placebo for postoperative pain in patients undergoing TKA. Male and/or female patients will be randomized to either dextromethorphan treatment group (n = 80) or placebo group (n= 80). Patients will receive 60 mg oral dextromethorphan (or matching placebo) preoperatively, as well as 30 mg 8- and 16-hours postoperatively.

Interventions

Sponsors

Nathanael Heckmann
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Main Inclusion Criteria: * Patients Age ≥18 planning to undergo total knee arthroplasty * ASA classes I - III Main

Exclusion criteria

* BMI ≥ 35 * History opioid abuse * History of intractable vomiting after previous surgery

Design outcomes

Primary

MeasureTime frame
Post-op opioid use24 hours

Secondary

MeasureTime frameDescription
Subjective painpreoperatively and 6, 12, 24, and 48 hours postoperativelynumeric rating scale (NRS) or visual analog scale (VAS)
Postoperative opioid consumptionat 48 hours

Countries

United States

Contacts

CONTACTPui Yan, MS
puiyan@med.usc.edu323-442-6984

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 28, 2026