Understanding the Role of Therapist Quality in Accounting for Heterogeneity of Patient Outcomes in Psychosocial Chronic Pain Treatments

Twelve-month results for a randomized sham-controlled effectiveness trial of an in-home skills-based virtual reality program for chronic low back pain

Introduction

Low-risk, accessible, and long-term effective nonpharmacologic behavioral interventions for chronic low back pain (cLBP) are needed. Pain education and cognitive behavioral therapy (CBT) are recommended first-line treatments, but access is poor, treatment effectiveness is variable, and long-term effectiveness is inconsistent. In-home virtual reality (VR)-delivered therapies might address these shortcomings because therapeutic content can be delivered in a consistent and quality-controlled manner.

Objective

To determine whether a 56-session, self-administered in-home, Skills-Based VR program for cLBP (RelieVRx) yields long-term reductions in pain intensity and pain interference 12 months posttreatment in a large demographically diverse and clinically severe real-world sample.

Methods

Participants were 1,093 demographically diverse individuals with self-reported nonmalignant cLBP >3 months duration and average pain intensity and interference scores >4/10. Participants were randomized to Skills-Based VR or active Sham, and data were collected from January 31, 2022 to October 31, 2023. Pretreatment to 12-month posttreatment analyses were conducted.

Results

From baseline to 12 months posttreatment, Skills-Based VR reductions for average pain intensity (1.7 ± 2.1) and pain interference (1.9 ± 2.3) were robust and significantly greater than those found for Sham. More than half of Skills-Based VR participants reported at least a 2-point reduction in pain intensity, pain interference, or both at 12 months posttreatment.

Conclusions

A standardized, in-home Skills-Based VR therapy is effective for reducing pain intensity and pain interference, and these effects are maintained to 12 months posttreatment.

A randomized-controlled pilot trial of telemedicine-delivered cognitive-behavioral therapy tailored for interstitial cystitis/bladder pain syndrome

Interstitial cystitis/bladder pain syndrome (IC/BPS) is a debilitating urologic pain condition with few treatment advances in the past 25 years. Individuals with IC/BPS often experience significant psychological distress, which worsens symptoms and functioning. To date, there have been no large-scale, randomized controlled trials (RCTs) of comprehensive psychological interventions for IC/BPS. We conducted a 2:1 RCT of an 8-session patient-informed cognitive-behavioral therapy (CBT) intervention designed for IC/BPS for reducing pain-related symptoms and improving quality of life, delivered through telemedicine. Individuals with IC/BPS (N = 78) were randomized to receive either 8 weeks of CBT specifically designed for IC/BPS (n = 52) or an attention control condition (n = 26). Urologic symptoms (Genitourinary Pain Index, GUPI), pain-related symptoms, affective distress, and quality of life were evaluated before, immediately after, and 3 months posttreatment. Both conditions reported significant but similar reductions (P = 0.922) in the a priori primary outcome of genitourinary symptoms at posttreatment (GUPI reduction = 6.6 vs 4.8, for CBT and control, respectively) and long-term follow-up (8.1 vs 6.6, for CBT and control). However, the CBT group had significantly greater improvement in Patient Global Impression of Change (PGIC) scores and was significantly more likely to be treatment responders (PGIC ≥ 6) (37% vs 8%, P = 0.019 for CBT and control), with a large relative effect size (OR = 6.68). A subgroup analysis of CBT recipients showed that responders (PGIC 6) displayed significant reductions in genitourinary symptoms (P = 0.023), pain intensity (P = 0.027), and pain interference (P = 0.013) posttreatment. Telemedicine-delivered pain CBT for IC/BPS shows promise for improving outcomes, and this trial demonstrates the need for larger RCTs of CBT for IC/BPS.