Portable Neuromodulation Stimulator (PoNS®) Therapy for Gait and Balance Deficits in Chronic Stroke Survivors: A Randomized Controlled Trial.

Chronic Stroke Survivors

Double blind, randomized, placebo controlled, interventional clinical trial investigating the efficacy and safety of PoNS therapy on improving dynamic gait and balance deficits in chronic stroke survivors.

Double blind, randomized, placebo controlled, interventional clinical trial investigating the efficacy and safety of PoNS therapy on improving dynamic gait and balance deficits in chronic stroke survivors. The Study Intervention Therapy is a therapeutic rehabilitation program that uses the PoNS device, Active or Sham, in conjunction with individualized physical exercise regimen. The data from this prospective, double-arm, multi-site study that will enroll 40 subjects at 2-3 different clinical sites will be used to augment efficacy and safety data obtained in the RCT (which will randomize 60 subjects 1:1 into either active PoNS combined with DGB training versus DGB training with a sham device) and the OLS (which will enroll 30 subject into one active treatment arm). The totality of the proposed clinical evidence spans 3-4 sites and approximately 120 participants. Eligible study participants will be randomized to either active PoNS \[Study Intervention\] device \[active\] or placebo PoNS \[Study Intervention\] device \[sham\]. Participants will work with a study physical therapist - trained in PoNS Therapy by HMI Medical and registered as a PoNS Trainer (Trainer). The Trainer will prepare a DGB training exercise program appropriate to the participant's ability level and instruct on how to perform the breathing and awareness (mindfulness) training (BAT). To ensure patient's safety during rehabilitation at home, the Trainer may assign a DGB training program slightly different from the one performed in clinic. All participants will undergo a total of twelve weeks of DGB training program combined with active or sham device's study treatment, performed both in clinic (4 weeks, Part 1), supervised by the Trainer, and at home (8 weeks, Part 2), mostly unsupervised. At the end of the treatment period, they will be asked to return to the clinic site for the follow-up visit 12 weeks after the end of the treatment period, as shown below: Participants will receive individualized balance and gait rehabilitation protocols appropriate to their ability level and breathing and awareness (mindfulness) training. (Table 1) During the training sessions in clinic and, subsequently, during at-home training period, the trainer can adjust /flex the DGB training based on the participant's individual response to the Study Intervention Therapy (Table 1). During Part 2, the Trainer will follow-up weekly with participants in the clinic. Table 1 Twelve weeks after completing the 12-week treatment phase of the study, participants will be required to return to the clinic for the final assessment of treatment effect. During the 12-week follow-up period (Part 3), participants will no longer utilize the Study Intervention device but will still be encouraged to continue with their physical rehabilitation program for the duration follow-up period until the final study visit.

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