Samphire Group, Inc.
This study evaluates the feasibility and efficacy of the Samphire Guided Care (SGC) program * a 12-week structured digital health program combining clinician-led onboarding, at-home neuromodulation using the Lutea tDCS device, neuromodulation coach support, and app-based symptom tracking - on work productivity, employee wellbeing, and quality of life in individuals experiencing mood and cognitive symptoms associated with menstruation, perimenopause, or menopause.
The CREST study is a prospective, observational, two-group cohort study conducted in a fully decentralized, at-home format. No randomization, blinding, or placebo comparator is employed. All enrolled participants receive access to the full SGC program, which includes: a clinician-led eligibility assessment at onboarding conducted by a third-party women's health clinician; at-home transcranial direct current stimulation (tDCS) using the Lutea consumer wellness device (for eligible participants who opt in); ongoing support from a Samphire neuromodulation coach; and app-based symptom tracking vi…
Inclusion Criteria: * Self-identified female, aged 18-65 years at the time of enrollment * Basic English literacy * Able and willing to provide informed consent electronically * Residing in the United States * Reporting mood or cognitive symptoms associated with menstruation, perimenopause, or menopause (must endorse a minimum of three of the following: irritability, emotional dysregulation, brain fog, fatigue, reduced concentration, sleep disruption, or low mood) * Symptoms present for at least 3 months and sufficiently severe to interfere with daily functioning, work performance, quality of…
The Lutea device (Samphire Group, Inc.) is an FCC-registered consumer wellness wearable that delivers low-intensity transcranial direct current stimulation (tDCS) targeting the primary motor cortex (M1) and dorsolateral prefrontal cortex (DLPFC). Sessions are 20 minutes in duration at a recommended frequency of multiple sessions per week, self- administered at home. The device does not meet the FDA's statutory definition of a medical device; it is intended for general wellness purposes and is not cleared or approved for the diagnosis, cure, mitigation, treatment, or prevention of any disease.
A 12-week structured digital health program comprising: clinician-led neuromodulation eligibility assessment and care pathway assignment at onboarding; ongoing neuromodulation coach support; and app-based daily symptom tracking via the Alethios digital research platform. All participants in both groups receive this program component.
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