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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04907656
Other study ID # 5975E
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date February 15, 2022
Est. completion date April 26, 2023

Study information

Verified date July 2023
Source Boston University Charles River Campus
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The present study involves a randomized clinical trial of Digital Cognitive Behavioral Therapy (dCBT) targeting worry and anxiety symptoms in a population with chronic pain and clinical levels of generalized anxiety disorder (GAD) symptoms. The clinical trial calls for the recruitment and randomization of 80 individuals with chronic musculoskeletal pain and clinical levels of GAD symptoms to either a dCBT program or a waitlist (Control) condition. The current research represents the first-step investigation of a treatment strategy with the potential to enhance care for patients with chronic pain by introducing a scalable, affordable, and system-friendly digital intervention (dCBT) that targets a prominent source of distress and associated disability in these patients. The investigators propose that by targeting GAD in chronic pain in a way that does not tax engagement in ongoing medical care provision, there is the potential to improve the uptake of effective care and to address both GAD and associated distress and disability.


Description:

An emerging body of research points to the significant impact of generalized anxiety disorder (GAD) on the functioning of adults with chronic pain. The importance of managing stress and anxiety is central to the fear/avoidance models of chronic pain, and fears of pain are elevated in those with GAD. Furthermore, the incidence of GAD is significantly higher in patients with chronic pain than in the general population. Likewise, severity of pain, degree of disability, opioid use, and medical costs have been found to be higher among those with comorbid GAD compared to those with chronic pain alone. The treatment of GAD in a chronic pain population has the potential to benefit pain-related distress and disability in addition to direct benefits on GAD and related quality of life. Cognitive Behavior Therapy (CBT) is an excellent choice for targeting GAD symptoms in a chronic pain population. CBT is a recommended first-line treatment for GAD according to international guidelines. Despite the potential benefits of treatment, individuals with GAD face significant barriers in accessing CBT, including limitations on the availability of trained therapists, the costs and burden of in-person therapy, and stigma issues. These barriers are likely magnified for individuals with chronic pain who also face their own stigma issues as well as a high medical appointment burden. An innovative solution for overcoming these barriers and providing CBT for GAD at scale is to offer well-validated digital treatment that can be delivered by smartphones, tablets, or computers. Digital CBT (dCBT) offers a cost-effective and scalable alternative to in- person CBT with comparable maintenance of treatment gains to in-person CBT at four-year follow-up. Interest in digital health solutions is evident in those with chronic pain, and digital treatment may also offer a strategy for addressing the significant racial and ethnic disparities in care as well as disparities in the degree of psychological distress reported for those with chronic pain. At this time, however, the efficacy of dCBT for GAD has not been evaluated in patients with chronic pain. The study contains two phases, with only Phase 2 being registered here. Following the achievement of benchmarks from Phase I, Phase 2 is a randomized clinical trial of Digital Cognitive Behavioral Therapy (dCBT) targeting worry and anxiety symptoms in a population with chronic pain and clinical levels of generalized anxiety disorder (GAD) symptoms. The dCBT under study is a commercially available smartphone application that provides weekly intervention sessions in 4 modules. An initial assessment drives an algorithm to personalize the program and individuals will have 10 weeks to complete the treatment. This randomized clinical trial calls for the recruitment and randomization of 80 individuals to either the dCBT program or a waitlist (control) condition. Specific aims for this project are: 1. To show that dCBT leads to lower GAD symptoms relative to the control condition. 2. To evaluate whether dCBT leads to greater changes in the secondary worry, mood, sleep, quality of life, and anxiety sensitivity outcomes than the control condition. 3. To evaluate whether dCBT leads to lower pain distress and disability outcomes than the wait-list control condition.


Recruitment information / eligibility

Status Completed
Enrollment 86
Est. completion date April 26, 2023
Est. primary completion date April 26, 2023
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Chronic musculoskeletal pain patients engaged in noninvasive treatments - Age 18 or older - Post acute phase of chronic pain - Clinical levels of Generalized Anxiety Disorder (GAD) (operationalized by a score of =10 on GAD-7) Exclusion Criteria: - Factors that may impede the utilization of digital intervention (non-English speaker/literate; no access to a digital device; severely vision impaired, or severe cognitive impairment) - Pending acute surgery or with a life prognosis of fewer than 6 months - Current daily opioid use - The presence [by self-report] of schizophrenia, psychosis, bipolar disorder, seizure disorder, or current substance use disorder (other than nicotine) - The ability to isolate the effects of the intervention (initiation or change of psychotropic medication dosage within past 4 weeks, received CBT for anxiety in last 3 months)

Study Design


Intervention

Behavioral:
dCBT
As per arm of the same name

Locations

Country Name City State
United States Boston University Boston Massachusetts

Sponsors (1)

Lead Sponsor Collaborator
Boston University Charles River Campus

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Anxiety Severity The Generalized Anxiety Disorder 7 (GAD 7) is a self-report measure that assesses the full range of symptoms associated with GAD. Responses are summed to create a composite score, with higher scores indicating more severe anxiety. Composite scores range from 0 to 21. Week 10
Secondary Worry Severity The Penn State Worry Questionnaire (PSWQ) is a self report measure of worry. Responses are summed to create a composite score, with higher scores indicating more severe worry. Composite scores range from 16 to 80. Week 0 (baseline), week 6, week 10 (post-intervention)
Secondary Depression The Patient Health Questionnaire (PHQ-8) is a self report measure of depression symptoms experienced in the past two weeks. It excludes the suicide item of the PHQ-9. Week 0 (baseline), week 6, week 10 (post-intervention)
Secondary Sleep Difficulty The Sleep Condition Indicator (SCI) is a self-report measure used to assess sleep related difficulties and insomnia based on the DSM-5 criteria. All 8 items are summed to create the composite score. Possible composite scores range from 0 to 32, with higher scores indicating better sleep. Week 0 (baseline), week 6, week 10 (post-intervention)
Secondary Health status The Short Form Health Survey (SF-12) is a self-report measure that assesses quality of life related to both physical and mental health. This measure does not have public scoring details and uses a weighted scoring algorithm. The average of select items is computed for subscale scores (physical and mental). Scores range from 0 to 100, with higher scores indicating better health/well-being and no disability. Week 0 (baseline), week 6, week 10 (post-intervention)
Secondary Anxiety sensitivity The Anxiety Sensitivity Index (ASI-3) is a self-report measure that assess three dimensions of anxiety sensitivity: fear of physical symptoms, fear of cognitive dyscontrol, and fear of social concerns. All 18 items are summed to create the composite score, with higher scores indicating more severe anxiety sensitivity. Week 0 (baseline), week 6, week 10 (post-intervention)
Secondary Clinician-rated anxiety severity The Hamilton Anxiety Rating Scale (HARS) will be administered per the structured interview guide for this instrument to provide a clinician-rated measure of anxiety severity. Detailed scoring instructions are available in the interview guide; composite scores range from 0 to 56, with higher scores indicating more severe distress and impairment. Week 0 (baseline), Week 10 (post-intervention)
Secondary Pain intensity The Brief Pain Inventory (BPI) is a self-report measure with 4 items used to assess pain severity. The severity score is the mean of the 4 items. Scores can range from 0 to 10, with higher scores indicating more intense pain. Week 0 (baseline), week 6, week 10 (post-intervention)
Secondary Pain interference/disability The BPI is a self-report measure with 7 items used to assess pain disability/interference. The interference score is the mean of the 7 items. The mean can be used if 50%, or 4 of the 7, items are completed. Scores can range from 0 to 10, with higher scores indicating more complete interference. Week 0 (baseline), week 6, week 10 (post-intervention)
Secondary Fear of pain The Pain Anxiety Symptoms Scale (PASS-20) is a self-report used to assess fear of pain. Responses are summed to create a composite score, ranging from 0 to 100 with higher scores indicating more severe fear of pain Week 0 (baseline), week 6, week 10 (post-intervention)
Secondary Pain medication use Use of pain medication and other pain interventions will be assessed with a self-report form developed by the research team for use in this study. Based on a composite scoring of medication dosages reported by participants, pain medication use at week 6 and week 10 will be coded as an increase, decrease, or steady state from the baseline dosages. Week 0 (baseline), week 6, week 10 (post-intervention)
Secondary Pain catastrophizing The Pain Catastrophizing Scale (PCS) is a self-report measure used to assess catastrophic thinking related to pain. Responses to all 13 items are summed to create a composite score, with higher scores indicating more severe catastrophic thinking. Scores range from 0 to 52. Week 0 (baseline), week 6, week 10 (post-intervention)
Secondary Anxiety Severity The Generalized Anxiety Disorder 7 (GAD 7) is a self-report measure that assesses the full range of symptoms associated with GAD. Responses are summed to create a composite score, with higher scores indicating more severe anxiety. Composite scores range from 0 to 21. Week 0 (baseline), week 3, week 6
Secondary Resolution of clinical GAD The proportion of participants no longer meeting GAD-7 clinical severity, operationalized as a score of less than 10 at the week 10 evaluation. Scoring will be the same as described for the GAD-7 above. Week 10 (post-intervention)
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