CClinicalTrials.gg
CompletedNCT00964886Updated Nov 29, 2016Results posted

Efficacy of Antidepressants in Chronic Back Pain

A Phase 2 interventional study of cognitive behavioral therapy and desipramine hydrochloride in Back Pain, sponsored by VA Office of Research and Development. Completed at 1 site in United States. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2016-11-29.

Sponsored by VA Office of Research and Development · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
142
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

This 12 week placebo controlled clinical trial tests the individual and combined effects of an antidepressant medication and cognitive behavioral therapy for chronic back pain.

Read the detailed description

This is a 4 arm 12 week randomized clinical trial comparing the efficacy of 1) low concentration desipramine (\< 60 ng/ml); 2) cognitive behavioral therapy; 3) low concentration desipramine + cognitive behavioral therapy; and 4) placebo medication (benzotropine mesylate).

02

Conditions studied

  • Back Pain

Browse trials for

Keywords

  • chronic pain
  • back pain
  • antidepressants
03

In context

Back Pain

2,373 studies on the registry are indexed under Back Pain; 284 are open to participants now.

This study's enrollment of 142 is above the median of 60 across 1,941 interventional studies indexed under Back Pain.

Browse Back Pain studies →

Lead sponsor

VA Office of Research and Development is the lead sponsor of 1,733 studies on the registry; 396 are open to participants now.

Of its 206 completed or terminated interventional studies of FDA-regulated products, 180 (87%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Chronic back pain (daily pain for > 6 months)

Exclusion criteria

Exclusion Criteria:

  • Major medical conditions which might contraindicate antidepressant treatment
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
142 participants (actual)

Study arms

  • Experimental
    Arm 1

    desipramine hydrochloride

    Drug: desipramine hydrochloride

  • Experimental
    Arm 2

    cognitive behavioral therapy

    Behavioral: cognitive behavioral therapy

  • Experimental
    Arm 3

    desipramine hydrochloride and cognitive behavioral therapy

    Drug: desipramine hydrochloride · Behavioral: cognitive behavioral therapy

  • Placebo comparator
    Arm 4

    anticholinergic medication; active placebo

    Drug: benztropine mesylate 0.125 mg daily

Interventions

  • Behavioralcognitive behavioral therapy

    cognitive behavioral therapy, a type of psychotherapy oriented towards restoring function and reducing impact of pain on everyday life

  • Drugdesipramine hydrochloride

    desipramine hydrochloride, with dose targeted to achieve a serum concentration of 5-60ng/ml

    Also known as: Anafranil

  • Behavioralcognitive behavioral therapy

    cognitive behavioral therapy, a type of psychotherapy oriented towards restoring function and reducing impact of pain on everyday life

  • Drugbenztropine mesylate 0.125 mg daily

    benztropine mesylate is a placebo, some of whose side effects mimic those of experimental intervention, desipramine hydrochloride

    Also known as: Cogentin

  • Drugdesipramine hydrochloride

    desipramine hydrochloride, with dose targeted to achieve a serum concentration of 5-60ng/ml

    Also known as: Anafranil

06

What researchers measure

Primary outcomes

  1. Intent-toTreat Analysis of Descriptor Differential Scale (DDS) of Pain Intensity

    The DDS is self-report measure of "current" pain intensity of chronic back pain. Participants rate pain on a 20 point scale as being greater or less intense relative to 12 adjectival descriptor words which serve as anchors (eg, greater or less than "faint," "moderate," "strong"). Scores range from 0 to 20 with higher scores indicating higher pain intensity. The analysis evaluated the 'as randomized' sample at 12 weeks after baseline or last observation carried forward, after co-varying for baseline (pre-treatment) values.

    Time frame: 12 weeks after baseline (or last observation carried forward)

Secondary outcomes

  1. Roland and Morris Disability Questionnaire

    This questionnaire measures disability in everyday function due to back pain. It is a 24-item checklist asking patients to endorse whether or not back pain limits activities they normally do (eg, "I stay at home most of the time because of my back"). Scores range from 0 to 24, with higher scores indicating greater disability in everyday function due to back pain. The analysis evaluated the 'as randomized' sample at 12 weeks after baseline, after co-varying for baseline (pre-treatment) values.

    Time frame: 12 weeks after baseline (or last observation carried forward)

07

Results

Posted Nov 29, 2016
Limitations and caveats
Failure to attain recruitment goals and attrition resulted in lack of power to detect an effect. A strong active placebo control condition (benztropine) and frequent follow up visits may have led to improvement in all groups over time.

Participant flow

Participant flow — Overall Study
MilestoneArm 1Arm 2Arm 3Arm 4
Started38343733
Completed27272124
Not completed117169
Withdrew: Lost to follow-up2264
Withdrew: Withdrawal by subject6253
Withdrew: Adverse event3152
Withdrew: Protocol violation0200

Outcome measures

PrimaryIntent-toTreat Analysis of Descriptor Differential Scale (DDS) of Pain Intensity

The DDS is self-report measure of "current" pain intensity of chronic back pain. Participants rate pain on a 20 point scale as being greater or less intense relative to 12 adjectival descriptor words which serve as anchors (eg, greater or less than "faint," "moderate," "strong"). Scores range from 0 to 20 with higher scores indicating higher pain intensity. The analysis evaluated the 'as randomized' sample at 12 weeks after baseline or last observation carried forward, after co-varying for baseline (pre-treatment) values.

Time frame:
12 weeks after baseline (or last observation carried forward)
Reported as:
Mean · units on a scale
Intent-toTreat Analysis of Descriptor Differential Scale (DDS) of Pain Intensity
units on a scaleArm 1 + Arm 3Arm 2 + Arm 4
Intent-toTreat Analysis of Descriptor Differential Scale (DDS) of Pain Intensity8.3 ± 0.58.1 ± 0.6
Statistical analysis
  • Arm 1 + Arm 3 vs Arm 2 + Arm 4 · ANCOVA · p = 0.7
SecondaryRoland and Morris Disability Questionnaire

This questionnaire measures disability in everyday function due to back pain. It is a 24-item checklist asking patients to endorse whether or not back pain limits activities they normally do (eg, "I stay at home most of the time because of my back"). Scores range from 0 to 24, with higher scores indicating greater disability in everyday function due to back pain. The analysis evaluated the 'as randomized' sample at 12 weeks after baseline, after co-varying for baseline (pre-treatment) values.

Time frame:
12 weeks after baseline (or last observation carried forward)
Reported as:
Mean · Units on a scale.
Roland and Morris Disability Questionnaire
Units on a scale.Arm 1 + Arm 3Arm 2 + Arm 4
Roland and Morris Disability Questionnaire8.7 ± 0.58.9 ± 0.5
Statistical analysis
  • Arm 1 + Arm 3 vs Arm 2 + Arm 4 · ANCOVA · p = 0.84Means are adjusted for baseline Roland and Morris scores.
PrimaryIntent-toTreat Analysis of Descriptor Differential Scale (DDS) of Pain Intensity

The DDS is self-report measure of "current" pain intensity of chronic back pain. Participants rate pain on a 20 point scale as being greater or less intense relative to 12 adjectival descriptor words which serve as anchors (eg, greater or less than "faint," "moderate," "strong"). Scores range from 0 to 20 with higher scores indicating higher pain intensity. The analysis evaluated the 'as randomized' sample at 12 weeks after baseline or last observation carried forward, after co-varying for baseline (pre-treatment) values.

Time frame:
12 weeks after baseline (or last observation carried forward)
Reported as:
Mean · units on a scale
Intent-toTreat Analysis of Descriptor Differential Scale (DDS) of Pain Intensity
units on a scaleArm 2 + Arm 3Arm 1 + Arm 4
Intent-toTreat Analysis of Descriptor Differential Scale (DDS) of Pain Intensity8.0 ± 0.68.4 ± 0.6
Statistical analysis
  • Arm 2 + Arm 3 vs Arm 1 + Arm 4 · ANCOVA · p = 0.6
SecondaryRoland and Morris Disability Questionnaire

This questionnaire measures disability in everyday function due to back pain. It is a 24-item checklist asking patients to endorse whether or not back pain limits activities they normally do (eg, "I stay at home most of the time because of my back"). Scores range from 0 to 24, with higher scores indicating greater disability in everyday function due to back pain. The analysis evaluated the 'as randomized' sample at 12 weeks after baseline, after co-varying for baseline (pre-treatment) values.

Time frame:
12 weeks after baseline (or last observation carried forward)
Reported as:
Mean · Units on a scale.
Roland and Morris Disability Questionnaire
Units on a scale.Arm 2 + Arm 3Arm 1 + Arm 4
Roland and Morris Disability Questionnaire8.7 ± 0.58.9 ± 0.5
Statistical analysis
  • Arm 2 + Arm 3 vs Arm 1 + Arm 4 · ANCOVA · p = 0.8

Adverse events

Collected over Report of side effects experienced within the past 3 days by participants completing the Week 12 visit.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Arm 1—1/38 (2.6%)12/17 (70.6%)
Arm 2—0/34 (0%)8/20 (40%)
Arm 3—1/37 (2.7%)7/16 (43.8%)
Arm 4—0/33 (0%)6/17 (35.3%)
Most frequent serious events
Most frequent serious events
EventArm 1Arm 2Arm 3Arm 4
fallCardiac disorders0/380/341/370/33
urosepsisRenal and urinary disorders1/380/340/370/33
Most frequent other events
Showing 10 of 26
Most frequent other events
EventArm 1Arm 2Arm 3Arm 4
dry mouthGastrointestinal disorders5/173/204/161/17
difficulty urinatingRenal and urinary disorders4/171/201/161/17
constipationGastrointestinal disorders4/171/201/161/17
erectile dysfunctionRenal and urinary disorders3/170/200/163/17
decreased libidoNervous system disorders1/170/200/163/17
accomodation disturbanceEye disorders2/170/202/161/17
sedationNervous system disorders0/171/202/160/17
ejaculatory dysfunctionRenal and urinary disorders2/170/200/161/17
orgasm dysfunctionRenal and urinary disorders2/170/200/161/17
increased dreamingNervous system disorders1/172/200/161/17

Baseline characteristics

Demographic characteristics of participants randomized at baseline to one of the four study arms (selected information on three participants missing)

Age, Continuous
Age, Continuous(years)Arm 1Arm 2Arm 3Arm 4Total
Mean56.5 ± 11.757.8 ± 9.251.5 ± 13.757.9 ± 10.955.8 ± 11.7
Gender
Gender(Participants)Arm 1Arm 2Arm 3Arm 4Total
Female543315
Male32293428123
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Arm 1Arm 2Arm 3Arm 4Total
Hispanic or Latino6105425
Not Hispanic or Latino29222824103
Unknown or Not Reported214411
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Arm 1Arm 2Arm 3Arm 4Total
American Indian or Alaska Native02103
Asian11215
Native Hawaiian or Other Pacific Islander00112
Black or African American664521
White2518212084
More than one race427316
Unknown or Not Reported13127
Region of Enrollment
Region of Enrollment(participants)Arm 1Arm 2Arm 3Arm 4Total
United States37333732139
Pain Intensity and Back Pain Disability
Pain Intensity and Back Pain Disability(units on a scale)Arm 1Arm 2Arm 3Arm 4Total
Pain Intensity (Descriptor Differential Scale)9.9 ± 4.911.9 ± 4.311.9 ± 5.112.1 ± 4.611.4 ± 4.0
Back Pain Disability (Roland and Morris)8.7 ± 5.413.0 ± 4.311.7 ± 5.412.6 ± 3.811.8 ± 4.9
08

Study locations

1 site
  • VA San Diego Healthcare System, San Diego, CA
    San Diego, California 92161, United States
09

References and documents

Publications

  • Gould HM, Atkinson JH, Chircop-Rollick T, D'Andrea J, Garfin S, Patel SM, Funk SD, Capparelli EV, Penzien DB, Wallace M, Weickgenanta AL, Slater M, Rutledge T. A randomized placebo-controlled trial of desipramine, cognitive behavioral therapy, and active placebo therapy for low back pain. Pain. 2020 Jun;161(6):1341-1349. doi: 10.1097/j.pain.0000000000001834. PubMed 32068667 ↗

Individual participant data

Plan to share: Yes — Available in SPSS format from the investigators.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 29, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00964886
Lead sponsor
VA Office of Research and Development
Collaborators
University of California, San Diego
Responsible party
Sponsor
First posted
Aug 25, 2009
Start date
Jan 2010
Primary completion
Dec 2014
Completion
Dec 2015
Results posted
Nov 29, 2016
Last update
Nov 29, 2016

Study contacts

Joseph H Atkinson, MD
principal investigator · VA San Diego Healthcare System, San Diego, CA

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2016. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion