CClinicalTrials.gg
TerminatedNCT05611749Updated May 4, 2025

Duloxetine Impact on Postoperative Pain Control and Outcomes

A Phase 2 interventional study of Duloxetine 60 MG and Placebo in Acute Post-operative Pain, Chronic Post Operative Pain and Narcotic Use, sponsored by Scripps Health. Terminated at 1 site in United States. Open to participants aged 24 Years to 99 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-05-04.

Sponsored by Scripps Health · Phase 2, Interventional, and Prevention

Why this study was terminated
Enrollment was extremely low and there were too many adverse events.

From the registry’s dates

  • Primary completion was Mar 2024, 2 years 6 months ago, and no results have been posted to the registry.
Phase
Phase 2
Study type
Interventional
Enrollment
17
Allocation
Randomized
Ages
24 Years to 99 Years
Sex
All
01

Study summary

  1. Evaluate differences between patients taking Duloxetine or placebo following lateral lumbar interbody fusion for postoperative narcotic consumption.
  2. Evaluate differences between patients taking Duloxetine or placebo following lateral lumbar interbody fusion for postoperative pain, function, and quality of life.
  3. Evaluate the correlation between preoperative screening tests (measuring pain centralization, anxiety, depression, and overall function) and patients' response to treatment (reduction in pain, anxiety, or depression and improvement in function).
Read the detailed description

It is widely accepted that over-prescription of narcotics by medical providers has played a significant role in the recent uptick in the nationwide opioid crisis facing American society. As such, a tremendous amount of research within the surgical community has been dedicated to reducing the need for narcotics in the acute postoperative period. Anti-depressants, including tricyclics as well as selective serotonin inhibitors (both SSRIs and SNRIs), have been identified in several trials as having potential benefit for treating acute postoperative pain.

Duloxetine (an SNRI) has been approved by the FDA for treating mental health conditions such as depression and anxiety as well as chronic musculoskeletal pain. Previous studies have established its efficacy in treating acute postoperative pain following orthopaedic procedures such as total joint arthroplasty, even with relatively short durations of treatment. Specifically, previous randomized controlled trials have demonstrated that perioperative duloxetine leads to decreased narcotics consumption as well as improved function scores in patients undergoing total knee arthroplasty.

While there has been a fair amount of research within the arthroplasty literature, there is minimal research to date investigating the potential benefits of this medication in the spine literature. Lateral interbody fusion is a commonly performed procedure where an interbody spacer (typically made of either PEEK or titanium) is placed between two adjacent vertebrae. This is usually done with the goal of increasing the space between the bones and/or to fuse the two bones together, thereby reducing the amount of motion that occurs during activities of daily living. To this point, there has not been any studies looking at the use of duloxetine's effect with regards to perioperative narcotics consumption and patient outcomes after lumbar fusion.

02

Conditions studied

  • Acute Post-operative Pain
  • Chronic Post Operative Pain
  • Narcotic Use
  • Opioid Use
  • Opioid Addiction

Keywords

  • Acute pain
  • Chronic pain
  • narcotic consumption
  • patient outcomes
03

In context

Pain, Postoperative

5,093 studies on the registry are indexed under Pain, Postoperative; 1,140 are open to participants now.

This study's enrollment of 17 is below the median of 75 across 4,344 interventional studies indexed under Pain, Postoperative.

Browse Pain, Postoperative studies →

Lead sponsor

Scripps Health is the lead sponsor of 45 studies on the registry; 8 are open to participants now.

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

04

Who can participate

Ages eligible
24 Years to 99 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Age: > 24 years
  • Male / Female not meeting any of the exclusion criteria

Exclusion criteria

Exclusion Criteria:

  • Age \< 24 years
  • Current use of antidepressant medications (including SSRI/SNRI, tricyclic, or Monoamine Oxidase Inhibitors)
  • History of seizure disorder
  • Diagnosis of bipolar disorder
  • History of syncope/orthostatic hypotension
  • Diagnosis of any condition with slowed gastric emptying
  • History of suicidal ideation
  • History of liver disease
  • History of chronic kidney disease/renal impairment
  • History of angle-closure glaucoma.
05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
17 participants (actual)

Study arms

  • Placebo comparator
    control group receiving a placebo

    The study medication (either placebo or Duloxetine) will be continued throughout the duration of hospitalization. The balance of the remaining pills will be provided to the patient as a discharge prescription to allow for 10 days total treatment.

    Other: Placebo

  • Experimental
    treatment group receiving 60 mg Duloxetine

    The study medication (either placebo or Duloxetine) will be continued throughout the duration of hospitalization. The balance of the remaining pills will be provided to the patient as a discharge prescription to allow for 10 days total treatment.

    Drug: Duloxetine 60 MG

Interventions

  • DrugDuloxetine 60 MG

    Looking at the use of duloxetine's effect with regards to perioperative narcotics consumption and patient outcomes after lumbar fusion.

    Also known as: Drizalma Sprinkle, Cymbalta, Irenka

  • OtherPlacebo

    Duloxetine versus placebo in reducing postoperative narcotic consumption among patients undergoing lateral lumbar interbody fusions

06

What researchers measure

Primary outcomes

  1. Evaluating the amount of change in pain, for patients prescribed Duloxetine versus those patients prescribed the placebo following lateral lumbar interbody fusion

    Evaluate the effectiveness of Duloxetine versus placebo through the assessment of postoperative narcotic consumption.

    Time frame: The study medication (either placebo or Duloxetine) will be continued throughout the duration of hospitalization. Remaining pills will be provided to the patient as a discharge prescription to allow for 10 days total treatment.

  2. Measuring the amount of change in pain, for patients prescribed Duloxetine versus those patients prescribed the placebo following lateral lumbar interbody fusion

    Measure the differences between patients taking Duloxetine or placebo following lateral lumbar interbody fusion for postoperative pain.

    Time frame: The study medication (either placebo or Duloxetine) will be continued throughout the duration of hospitalization. Remaining pills will be provided to the patient as a discharge prescription to allow for 10 days total treatment.

  3. Evaluating the amount of change in function for patients prescribed Duloxetine versus those patients prescribed the placebo following lateral lumbar interbody fusion

    Evaluate the effectiveness of Duloxetine versus placebo through the assessment of postoperative narcotic consumption.

    Time frame: The study medication (either placebo or Duloxetine) will be continued throughout the duration of hospitalization. Remaining pills will be provided to the patient as a discharge prescription to allow for 10 days total treatment.

  4. Measuring the amount of change in function for patients prescribed Duloxetine versus those patients prescribed the placebo following lateral lumbar interbody fusion

    Measure the differences between patients taking Duloxetine or placebo following lateral lumbar interbody fusion for postoperative pain.

    Time frame: The study medication (either placebo or Duloxetine) will be continued throughout the duration of hospitalization. Remaining pills will be provided to the patient as a discharge prescription to allow for 10 days total treatment.

  5. Evaluating the amount of change in narcotic consumption for patients prescribed Duloxetine versus those patients prescribed the placebo following lateral lumbar interbody fusion

    Evaluate the effectiveness of Duloxetine versus placebo through the assessment of postoperative narcotic consumption.

    Time frame: The study medication (either placebo or Duloxetine) will be continued throughout the duration of hospitalization. Remaining pills will be provided to the patient as a discharge prescription to allow for 10 days total treatment.

  6. Measuring the amount of change in narcotic consumption for patients prescribed Duloxetine versus those patients prescribed the placebo following lateral lumbar interbody fusion

    Measure the differences between patients taking Duloxetine or placebo following lateral lumbar interbody fusion for postoperative pain.

    Time frame: The study medication (either placebo or Duloxetine) will be continued throughout the duration of hospitalization. Remaining pills will be provided to the patient as a discharge prescription to allow for 10 days total treatment.

  7. Measuring the general domains of health with PROMIS Global questionnaire

    The PROMIS Global questionnaire is a patient reported outcome that evaluates and identifies the life domains in areas such as physical, mental and social health. Scoring for the questionnaire is out of 50 points and the higher the score the healthier the patient.

    Time frame: Patients will be asked to complete the PROMIS Global at baseline visit

  8. Measuring the general domains of function with PROMIS Global questionnaire

    The PROMIS Global questionnaire is a patient reported outcome that evaluates and identifies the life domains in areas such as physical, mental and social health. Scoring for the questionnaire is out of 50 points and the higher the score the healthier the patient.

    Time frame: Patients will be asked to complete the PROMIS Global at baseline visit

  9. Measuring the general domains of health with PROMIS Global questionnaire

    The PROMIS Global questionnaire is a patient reported outcome that evaluates and identifies the life domains in areas such as physical, mental and social health. Scoring for the questionnaire is out of 50 points and the higher the score the healthier the patient.

    Time frame: Patients will be asked to complete the PROMIS Global at 2 week post-op visit

  10. Measuring the general domains of function with PROMIS Global questionnaire

    The PROMIS Global questionnaire is a patient reported outcome that evaluates and identifies the life domains in areas such as physical, mental and social health. Scoring for the questionnaire is out of 50 points and the higher the score the healthier the patient.

    Time frame: Patients will be asked to complete the PROMIS Global at 2 week post-op visit

  11. Measuring the general domains of health with PROMIS Global questionnaire

    The PROMIS Global questionnaire is a patient reported outcome that evaluates and identifies the life domains in areas such as physical, mental and social health. Scoring for the questionnaire is out of 50 points and the higher the score the healthier the patient.

    Time frame: Patients will be asked to complete the PROMIS Global at 4 week post-op visit

  12. Measuring the general domains of function with PROMIS Global questionnaire

    The PROMIS Global questionnaire is a patient reported outcome that evaluates and identifies the life domains in areas such as physical, mental and social health. Scoring for the questionnaire is out of 50 points and the higher the score the healthier the patient.

    Time frame: Patients will be asked to complete the PROMIS Global at 4 week post-op visit

  13. Measuring the general domains of health with PROMIS Global questionnaire

    The PROMIS Global questionnaire is a patient reported outcome that evaluates and identifies the life domains in areas such as physical, mental and social health. Scoring for the questionnaire is out of 50 points and the higher the score the healthier the patient.

    Time frame: Patients will be asked to complete the PROMIS Global at 8 week post-op visit

  14. Measuring the general domains of function with PROMIS Global questionnaire

    The PROMIS Global questionnaire is a patient reported outcome that evaluates and identifies the life domains in areas such as physical, mental and social health. Scoring for the questionnaire is out of 50 points and the higher the score the healthier the patient.

    Time frame: Patients will be asked to complete the PROMIS Global at 8 week post-op visit

  15. Patient's anxiety symptoms severity at baseline visit

    The Generalized Anxiety Disorder-7 (GAD-7) is an assessment tool to measure the changes in a treatments progress and provide guidance for treatment decisions, interventional targets and give assistance in differential diagnosis. Scoring for this measure is based off the patient reporting anxiety symptoms on a Likert scale. The scale scoring is rom 1- 21. The lower the score the less the severity of anxiety symptoms being reported by a patient.

    Time frame: Patients will be asked to complete the GAD-7 at the baseline visit

  16. Patient's anxiety symptoms severity at eight week visit

    The Generalized Anxiety Disorder-7 (GAD-7) is an assessment tool to measure the changes in a treatments progress and provide guidance for treatment decisions, interventional targets and give assistance in differential diagnosis. Scoring for this measure is based off the patient reporting anxiety symptoms on a Likert scale. The scale scoring is rom 1- 21. The lower the score the less the severity of anxiety symptoms being reported by a patient.

    Time frame: Patients will be asked to complete the GAD-7 at the 8 week post-op visit.

  17. Measuring a patient's baseline visit for severity of depression symptoms with Beck's Depression Inventory

    The Beck's Depression Inventory questionnaire is a patient self-reporting measurement of a patients symptoms and the related characteristic and attitudes pertaining to depression. This measure is cored on a scale 0-3 on 21 questions. The higher the score the worse the outcome is for the severity of depression.

    Time frame: Patient s will complete the Beck's Depression Inventory at the baseline visit.

  18. Measuring a patient's eight week visit for severity of depression symptoms with Beck's Depression Inventory

    The Beck's Depression Inventory questionnaire is a patient self-reporting measurement of a patients symptoms and the related characteristic and attitudes pertaining to depression. This measure is cored on a scale 0-3 on 21 questions. The higher the score the worse the outcome is for the severity of depression.

    Time frame: Patient s will complete the Beck's Depression Inventory at the 8 week post-op visit.

  19. Measuring at the baseline of a patient's hypersensitivity to noxious and non-noxious stimuli with the Central Sensitization Inventory

    The Central Sensitization inventory is a patient self reporting on the severity of their central sensitization pain they are experiencing. The pain severity is scored from 0-100 ( (subclinical= 0-29), (mild=30-39), (moderate=40-49), (severe= 50-59) and (extreme=60-100). The higher the score equates to the worse the outcome.

    Time frame: Patients will complete the Central Sensitization Inventory at the baseline visit.

  20. Measuring at eight weeks to evaluate a patient's hypersensitivity to noxious and non-noxious stimuli with the Central Sensitization Inventory

    The Central Sensitization inventory is a patient self reporting on the severity of their central sensitization pain they are experiencing. The pain severity is scored from 0-100 ( (subclinical= 0-29), (mild=30-39), (moderate=40-49), (severe= 50-59) and (extreme=60-100). The higher the score equates to the worse the outcome.

    Time frame: Patients will complete the Central Sensitization Inventory at the 8 week post-op visit.

  21. Baseline to measure a patient's catastrophic thinking in relation to adults with or without chronic pain.

    The Pain Catastrophizing Scale is measure that a patient self-reports their thoughts and feelings that may be associated to the pain that they may or may not be experiencing. The scoring of this scale is as follows: 0=not at all, 1=to a slight degree, 2=to a moderate degree, 3= to a great degree, 4= all the time. The higher the score equals the worse the outcome

    Time frame: The patient will complete the Pain Catastrophizing Scale at the baseline visit.

  22. Eight week measurement of a patient's catastrophic thinking in relation to adults with or without chronic pain.

    The Pain Catastrophizing Scale is measure that a patient self-reports their thoughts and feelings that may be associated to the pain that they may or may not be experiencing. The scoring of this scale is as follows: 0=not at all, 1=to a slight degree, 2=to a moderate degree, 3= to a great degree, 4= all the time. The higher the score equals the worse the outcome

    Time frame: The patient will complete the Pain Catastrophizing Scale at the 8 week post-op visit.

  23. Two week evaluation of amount of change in post-op pain improvement

    Evaluate the correlation between preoperative screening tests (measuring pain centralization, anxiety, depression, and overall function) and patients' response to treatment (reduction in pain, anxiety, or depression and improvement in function). Continued use of previously mentioned patient reported outcomes will be measured at the designated time points

    Time frame: Patients to be evaluated at post-op at 2 weeks.

  24. Four week evaluation of amount of change in post-op pain improvement

    Evaluate the correlation between preoperative screening tests (measuring pain centralization, anxiety, depression, and overall function) and patients' response to treatment (reduction in pain, anxiety, or depression and improvement in function). Continued use of previously mentioned patient reported outcomes will be measured at the designated time points

    Time frame: Patients to be evaluated at post-op at 4 weeks.

  25. Eight week evaluataion of amount of change in post-op pain improvement

    Evaluate the correlation between preoperative screening tests (measuring pain centralization, anxiety, depression, and overall function) and patients' response to treatment (reduction in pain, anxiety, or depression and improvement in function). Continued use of previously mentioned patient reported outcomes will be measured at the designated time points

    Time frame: Patients to be evaluated at post-op at 8 weeks.

  26. Two week evaluation of amount of change in post-op quality of life improvement

    Evaluate the correlation between preoperative screening tests (measuring pain centralization, anxiety, depression, and overall function) and patients' response to treatment (reduction in pain, anxiety, or depression and improvement in function). Continued use of previously mentioned patient reported outcomes will be measured at the designated time points

    Time frame: Patients to be evaluated at post-op at 2 weeks

  27. Four week evaluation of amount of change in post-op quality of life improvement

    Evaluate the correlation between preoperative screening tests (measuring pain centralization, anxiety, depression, and overall function) and patients' response to treatment (reduction in pain, anxiety, or depression and improvement in function). Continued use of previously mentioned patient reported outcomes will be measured at the designated time points

    Time frame: Patients to be evaluated at post-op at 4 weeks.

  28. Eight week evaluation of amount of change in post-op quality of life improvement

    Evaluate the correlation between preoperative screening tests (measuring pain centralization, anxiety, depression, and overall function) and patients' response to treatment (reduction in pain, anxiety, or depression and improvement in function). Continued use of previously mentioned patient reported outcomes will be measured at the designated time points

    Time frame: Patients to be evaluated at post-op at 8 weeks.

07

Study locations

1 site
  • Scripps Clinic Torrey Pines
    La Jolla, California 92037, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 4, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05611749
Lead sponsor
Scripps Health
Responsible party
Gregory M. Mundis Jr., MD (Pediatric and Adult Spinal Deformity Surgery Co-Director San Diego Spine Fellowship Scripps Clinic Division of Orthopedic Surgery, Scripps Health) — Principal investigator
First posted
Nov 10, 2022
Start date
May 30, 2023
Primary completion
Mar 25, 2024
Completion
Mar 25, 2024
Last update
May 4, 2025

Study contacts

Gregory M Mundis, MD
principal investigator · Scripps Health

Oversight

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

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This study is terminated, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

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