{"type":"trials","record":{"id":42378,"source_id":"clinicaltrials-gov","external_id":"NCT04431622","title":"Objective Measurement of Hearing Aid Benefit","brief_summary":"Hearing loss is a critical health concern in the rapidly aging population, affecting approximately 22 million older individuals in the United States. Yet, only 30% of individuals who would benefit from the use of hearing aids regularly use them. This project aims to improve the benefit of hearing aids for older adults through incorporation of objective neural measures to assess effects of hearing aid algorithms.","overall_status":"Withdrawn","phases":[],"study_type":"INTERVENTIONAL","sponsor":"University of Maryland, College Park","enrollment":0,"countries":[],"start_date":"2022-06-01","completion_date":"2027-08-01","last_update_date":"2022-05-23","source_url":"https://clinicaltrials.gov/study/NCT04431622","editorial_summary":"A registered study indexed because it matched monitored longevity research terms. Registry status: Withdrawn. Registration does not establish safety or effectiveness.","first_seen_at":"2026-09-25T01:25:34.048307+00:00","last_seen_at":"2026-09-25T06:25:04.647+00:00","metadata":{"sex":"ALL","acronym":null,"age_range":"18 Years to 85 Years","comparator":null,"organization":"University of Maryland, College Park","interventions":["Hearing aid amplification algorithms"],"registry_source":"ClinicalTrials.gov","outcome_measures":["Neural response fidelity — Immediately post-treatment","Cognitive effort — Immediately post-treatment"],"design_description":"NA · SINGLE GROUP · TREATMENT · NONE","source_has_results":false},"controlled_terms":["Auditory Perceptual Disorders","Age-related Hearing Loss","Hearing aid amplification algorithms"],"relevance_confidence":62,"source_quality_score":100,"freshness_score":50,"publication_state":"published","match_explanation":"Source terminology contains: age-related hearing loss.","quality_checked_at":"2026-09-25T06:25:07.732232+00:00","duplicate_cluster_key":"id:nct04431622","duplicate_of_id":null,"evidence_snapshot":{"status":"structured","version":1,"duration":"2022-06-01 to 2027-08-01","comparator":null,"confidence":"structured-source","population":"ALL · 18 Years to 85 Years","provenance":{"duration":"start_date and completion_date","comparator":"registry arm fields","population":"registry eligibility fields","intervention":"registry intervention fields","participants":"enrollment","study_design":"study_type and registry design fields","evidence_stage":"phases","reported_outcome":"not available","outcomes_measured":"registry outcome-measure fields"},"generated_at":"2026-09-25T06:25:04.666Z","intervention":["Hearing aid amplification algorithms"],"participants":0,"study_design":"NA · SINGLE GROUP · TREATMENT · NONE","subject_scope":"Human clinical study registration","evidence_stage":"Phase not reported","safety_context":"Eligibility, adverse-event details, and clinical decisions must be checked in the official registry and with qualified clinicians.","source_support":"Structured registry protocol metadata; no finding-level conclusion is generated.","main_limitation":"This is a study registration. No reusable structured result is available here, so it cannot show whether the intervention worked or was safe.","reported_outcome":null,"outcomes_measured":["Neural response fidelity — Immediately post-treatment","Cognitive effort — Immediately post-treatment"],"regulatory_context":"Trial registration is not regulatory approval and does not establish that an intervention is available."},"clinical_trial_topics":[{"topic_slug":"hearing-aging","is_published":true,"match_reasons":["Source terminology contains: age-related hearing loss.","Abstract supplies longevity context: aging, older adult.","Study type is explicitly identified as INTERVENTIONAL."],"matched_fields":["controlled terminology","abstract context","study type"],"relevance_score":62,"intelligence_topics":{"name":"Hearing ageing","slug":"hearing-aging"}}],"content_sources":{"name":"ClinicalTrials.gov","homepage_url":"https://clinicaltrials.gov/"}},"canonical_url":"https://www.immortal.life/trials/42378","automation_disclosure":"Generated automatically from cited source metadata. No scientist, clinician, researcher, editor, or human reviewer evaluates this publication before release."}