Study protocol and methods for Easing Pelvic Pain Interventions Clinical Research Program (EPPIC): a randomized clinical trial of brief, low-intensity, transdiagnostic cognitive behavioral therapy vs education/support for urologic chronic pelvic pain syndrome (UCPPS)

Jeffrey M Lackner, James Jaccard, Brian M Quigley, Tova S Ablove, Teresa L Danforth, Rebecca S Firth, Gregory D Gudleski, Susan S Krasner, Christopher D Radziwon, Alison M Vargovich, J Quentin Clemens, Bruce D Naliboff, Jeffrey M Lackner, James Jaccard, Brian M Quigley, Tova S Ablove, Teresa L Danforth, Rebecca S Firth, Gregory D Gudleski, Susan S Krasner, Christopher D Radziwon, Alison M Vargovich, J Quentin Clemens, Bruce D Naliboff

Abstract

Background: Urologic chronic pelvic pain syndrome (UCPPS) encompasses several common, costly, diagnoses including interstitial cystitis/bladder pain syndrome and chronic prostatitis/chronic pelvic pain syndrome that are poorly understood and inadequately treated with conventional medical therapies. Behavioral strategies, recommended as a first-line treatment for managing symptoms, are largely inaccessible, time and labor intensive, and technically complex. The Easing Pelvic Pain Interventions Clinical Research Program (EPPIC) is a clinical trial examining the efficacy of low-intensity cognitive behavioral therapy (Minimal Contact CBT or MC-CBT) for UCPPS and its durability 3 and 6 months post treatment. Additional aims include characterizing the operative processes (e.g., cognitive distancing, context sensitivity, coping flexibility, repetitive negative thought) that drive MC-CBT-induced symptom relief and pre-treatment patient variables that moderate differential response.

Methods: UCPPS patients (240) ages 18-70 years, any gender, ethnicity, and race, will be randomized to 4-session MC-CBT or a credible, non-specific education comparator (EDU) that controls for the generic effects from simply going to treatment. Efficacy assessments will be administered at pre-treatment, 2 weeks, and 3 and 6 months post treatment-week acute phase. A novel statistical approach applied to micro-analytic mediator assessment schedule will permit the specification of the most effective CBT component(s) that drive symptom relief.

Discussion: Empirical validation of a low-intensity self-management therapy transdiagnostic in scope has the potential to improve the health of chronic pelvic pain patients refractory to medical therapies, reduce social and economic costs, conserve health care resources, as well as inform evidence-based practice guidelines. Identification of change mechanisms and moderators of treatment effects can provide proactive patient-treatment matching fundamental to goals of personalized medicine.

Trial registration: Clinicaltrials.gov NCT05127616. Registered on 9/19/21.

Keywords: Bladder pain syndrome; Chronic pain; Chronic prostatitis; Interstitial cystitis; Randomized clinical trial; Self-management; Transdiagnostic.

Conflict of interest statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

© 2022. The Author(s).

Figures

Fig. 1
Fig. 1
EPPIC study design and patient flow
Fig. 2
Fig. 2
Randomized experimental trial model of mediation analyses
Fig. 3
Fig. 3
EPPIC organizational structure and key personnel

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