is is a multi-center, open-label, observational registry study (both prospective and retrospective) designed to evaluate the safety and performance of the allay™ Hydrogel Cap. This cap is an in situ forming implantable hydrogel medical device used in various peripheral nerve surgeries, including amputation and neuroma excision. The study aims to gather demographic, operative, and clinical outcomes data from patients who have received the device. The primary endpoints focus on the device's clinical performance, assessed using patient-reported outcomes (PROs). These include tracking changes in pain scores, pain intolerance, and cold intolerance, as well as the incidence of neuroma recurrence and changes in pain medication use from baseline. Secondary endpoints concentrate on safety, monitoring the incidence of device failures, surgical complications, unplanned re-operations, and unexpected adverse device events (UADEs) within the study population. Essentially, the registry is collecting real-world data to determine how well and how safely the allay™ cap performs in a clinical setting.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Assessment of change in Pain Scores from baseline using VAS
Timeframe: Baseline (Pre Surgery ), 2 Weeks, 1 month, 4 month, 12 month and 24 month (Post Surgery)
Assessment of change in Pain scores from baseline using Numerical Rating Scale
Timeframe: Baseline (Pre Surgery ), 2 Weeks, 1 month, 4 month, 12 month and 24 month (Post Surgery)
Assessment of change in Pain Interference from baseline using PROMIS PI Short Form 5b
Timeframe: Baseline (Pre Surgery ), 2 Weeks, 1 month, 4 month, 12 month and 24 month (Post Surgery)
Assessment of change in Neuropathic Pain Quality from baseline using Patient-Reported Outcome Measurement Information System (PROMIS) v2.0 Neuropathic Pain Quality 5a
Timeframe: Baseline (Pre Surgery ), 2 Weeks, 1 month, 4 month, 12 month and 24 month (Post Surgery)
Assessment of change in Cold Intolerance from baseline using Cold Intolerance Symptom Severity (CISS) score
Timeframe: Baseline (Pre Surgery ), 2 Weeks, 1 month, 4 month, 12 month and 24 month (Post Surgery)
Assessment of change from baseline in the average quantity of pain medication taken via the Medication Quantification Scale (MQS) at 12 months.
Timeframe: Baseline (Pre Surgery ), 2 Weeks, 1 month, 4 month, 12 months (Post Surgery)