NCT04060875

Research Protocol for Karuna Labs Inc.: Safety and Efficacy of Virtual Reality Graded Motor Imagery for Chronic Pain

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 24 (actual)
• Sponsor: Karuna Labs Inc. · Industry
• Sex: All
• Age: 18 Years – 70 Years
• Healthy volunteers: Accepted

Summary

The purpose of this study is to investigate, in two phases: (1) the feasibility and safety of Virtual Embodiment Therapy in treating chronic pain of lower back and upper limbs and (2) the efficacy of Virtual Embodiment Therapy on chronic pain disorders of the lower back and upper limbs. In phase 1, we will investigate the feasibility, safety, and side effects related to this treatment by assessing simulator sickness. In phase 2, which in contingent on successful completion of phase 1, we will assess symptoms of pain specific to the region treated, fear and avoidance behavior, and depression symptoms before and after 8 sessions of treatment with Virtual Embodiment Therapy in order to assess efficacy. This study will be single-blinded, because the participation of the clinician is necessary to ensure proper administration of the therapy, as well as to monitor in the event of adverse reactions.

Detailed description

This multi-site study aims to investigate the feasibility, safety, and efficacy of using embodied virtual reality graded motor imagery software to treat adults with diagnosed chronic central pain conditions in two bodily regions: chronic pain in the lower back and in the upper limbs. The research will be conducted in two phases, the second of which is contingent upon successful completion of the first. The first phase will involve piloting a novel virtual reality treatment for chronic pain to investigate feasibility and safety with a smaller number of patients (N=30 for each condition). The second phase of the research will investigate efficacy using a single-blinded randomized control study design with sham control. Chronic pain conditions of the lower back and upper limbs will be investigated separately, and power analyses have been conducted to determine optimal study size, which is N=200 for each portion. Central pain is defined as pain that originates in the central nervous system, and is not immediately due to injury, but is possibly a delayed reaction to injury. Example conditions eligible for this study include chronic lower back pain, as well as phantom limb pain, complex regional pain syndrome, carpal tunnel syndrome, post-stroke limb pain, and repetitive strain injuries of the shoulder, arm or hand. In the pilot phase of the study, 30 subjects with chronic lower back pain and 30 subjects with chronic upper limb pain will receive 8 sessions of graded motor imagery virtual reality therapy. Contingent on the success of the pilot, defined as completion of 8 session with no adverse events, and trends indicating improvement of range of motion, pain, fear/avoidance, and depression symptoms, the randomized control trial phase of the research will proceed. In the randomized phase, subjects will be randomized into active or control conditions. Active condition subjects will receive 8 sessions of graded motor imagery in virtual reality, and control condition subjects will receive a non-embodied sham virtual reality experience. This study will investigate the safety and feasibility of this approach, as well as its effects on pain symptoms. This product is considered a non-significant risk device, as is explained in the accompanying letter from the sponsor, Karuna Labs Inc. A request for feedback from the presubmission program of the U.S. Food and Drug Administration has additionally been submitted.

Conditions

• Chronic Pain
• Low Back Pain
• Fibromyalgia
• Upper Extremity Dysfunction
• Complex Regional Pain Syndromes
• Phantom Limb Pain
• Rheumatoid Arthritis
• Carpal Tunnel Syndrome
• Repetitive Strain Injury

Interventions

Type	Name	Description
DEVICE	Karuna Labs Virtual Reality Software	The subjects will engage in the three therapeutic modules: laterality, motor imagery, and 'mirroring.' The decision of which module to employ will be based on the subject's readiness and comfort on a case-by-case basis. A subject visit can be expected to last 40 minutes, with enough time to complete PHQ-9, and to accustom to the virtual reality setup by playing in a non-therapeutic virtual environment should they choose to do so. Time in the virtual reality is expected to last approximately 20 minutes per session.

Timeline

• Start date: 2017-09-21
• Primary completion: 2021-06-01
• Completion: 2021-06-01
• First posted: 2019-08-19
• Last updated: 2021-06-11

Locations

1 site across 1 country: United States