Effect of VR-MBCT in Chronic Nonspecific Low Back Pain

Condition(s) studied

Investigational drug(s) / intervention(s)

Virtual Reality-Based Mindfulness Cognitive Therapy (VR-MBCT): Participants in the intervention group will receive an 8-week VR-based telerehabilitation program integrating mindfulness-based cognitive therapy (MBCT), pain neuroscience education (PNE), and graded exposure principles, specifically designed for chronic non-specific low back pain (CNLBP) besides usual clinical care. The program will be delivered through a VR-MR system co-developed by the research team and a technology company in Hangzhou. The system will comprise a PICO Ultra VR-MR headset for immersive mixed-reality experiences and a DM-TG01A motion capture camera for real-time tracking of participant movements and postures. All equipment will be provided to participants at no cost.

Waitlist Usual Care Control Group: The control group will receive standard clinical care (including pharmacological treatment, physical therapy, and home exercise as usual) without any structured VR training for the initial 8-week study period. After completing the 6-month follow-up assessment, control group participants will be offered the same 8-week VR-MBCT program based on their choices.

Study summary

This is a multi-center, prospective, open-label randomized controlled trial evaluating the efficacy and safety of virtual reality-based mindfulness-based cognitive therapy (VR-MBCT) as an adjunct to usual care in adults with chronic nonspecific low back pain (CNLBP). A total of 214 participants aged 20-70 years with pain duration ≥3 months and average back pain bothersomeness ≥4 (0-10 scale) will be enrolled from three hospitals in China and randomized 1:1 to an 8-week VR-MBCT intervention group or a waitlist usual care control group. The co-primary outcomes are the proportions of patients achieving ≥30% improvement from baseline in Oswestry Disability Index (ODI) and self-rated back pain bothersomeness at week 8. Secondary outcomes include pain intensity (NRS), global improvement, anxiety (GAD-7), depression (PHQ-9), physical activity (IPAQ-SF), sleep quality (SQS), fear-avoidance beliefs (FABQ-PA), pain catastrophizing (PCS), work productivity (WPAI-GH), treatment use, system usability (SUS), and patient satisfaction. Safety will be monitored for VR-related adverse events. Assessments will be performed at baseline (T0), week 4 (T1), week 8 (T2), and week 26 (T3). Data will be analyzed following the intention-to-treat principle using mixed-effects models and per-protocol analyses.

Eligibility

Primary outcome measure(s)

• Proportion of participants achieving ≥30% improvement in Oswestry Disability Index (ODI) from baseline at Week 8 — Baseline, Week 8
  Functional disability assessed by the validated Oswestry Disability Index (ODI, score range 0-100%). Treatment responder defined as achieving a minimum clinically important improvement of ≥30% reduction from baseline at week 8.
• Proportion of participants achieving ≥30% improvement in self-reported back pain bothersomeness (0-10 scale) from baseline at Week 8 — Baseline, Week 8
  Back pain bothersomeness rated on a 0-10 scale (0 = no bother, 10 = worst bothersomeness). Responder defined as ≥30% score reduction from baseline at week 8.

Trial sites (1)

More The First Affiliated Hospital of Soochow University trials in China