Massachusetts General Hospital
Heart rate variability biofeedback (HRVB) is a breathing-based intervention that reduces anxiety in a range of populations. Second-generation wearable HRVB devices not only deliver scheduled biofeedback practice sessions but also allow patients to practice HRVB in-the-moment when it is needed most. This study is testing the acceptability, feasibility, and preliminary efficacy of second-generation, ambulatory HRVB for the treatment of anxiety in autistic youth.
Fifty youth with autism and clinically significant anxiety will be recruited to participate in a single-arm, 8-week open-label, fully remote trial of HRVB. Participants will utilize the Lief Smart Patch which delivers HRVB training and practice through an embedded ECG monitor, accelerometer, and companion smartphone app. Specific aims of the research include: 1) Determine the acceptability and feasibility of second generation HRVB in autistic youth; and 2) Evaluate the preliminary efficacy of HRVB for the treatment of anxiety in autistic youth.
Inclusion Criteria: 1. Age 12-17 years at the time of enrollment. 2. ASD diagnosis from a qualified health professional based on medical records and confirmed based on Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM 5) criteria by the study clinician. 3. IQ ≥50 based on the Kaufman Brief Intelligence Test (KBIT-2). 4. Clinically significant anxiety, based on the Pediatric Anxiety Rating Scale (PARS) 5-item score of ≥10. 5. Stable medications for ≥30 days. 6. English speaking. 7. Willing to wear the Lief Smart Patch for 8 weeks. 8. English speaking guardian who is wil…
The Lief Smart Patch is a commercially available, noninvasive wearable heart rate variability biofeedback (HRVB) device. The patch includes an embedded electrocardiogram (ECG) sensor and accelerometer that interfaces with a companion smartphone application to deliver paced breathing exercises and just-in-time adaptive intervention (JITAI) prompts. It is an externally worn patch that temporarily adheres to the skin surface and can be removed by the participant.
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