{"type":"trials","record":{"id":28375,"source_id":"clinicaltrials-gov","external_id":"NCT04739436","title":"Evaluation of Unilateral vs Bilateral Hearing Aids for the Treatment of Age-related Hearing Loss","brief_summary":"This study aims to evaluate the benefit of bilateral hearing aid use compared to a unilateral hearing aid. Patients with mild to moderate bilateral hearing loss who are considering the purchase of a commercially available hearing aid will be considered for participation. Eligible participants will be randomized to one of the following treatment arms: (1) a bilateral hearing aid fitting group, and (2) a unilateral hearing aid fitting group.","overall_status":"Completed","phases":[],"study_type":"INTERVENTIONAL","sponsor":"Duke University","enrollment":278,"countries":["United States"],"start_date":"2021-04-26","completion_date":"2024-09-20","last_update_date":"2025-04-10","source_url":"https://clinicaltrials.gov/study/NCT04739436","editorial_summary":"A registered study indexed because it matched monitored longevity research terms. Registry status: Completed. Registration does not establish safety or effectiveness.","first_seen_at":"2026-09-25T00:17:13.50034+00:00","last_seen_at":"2026-09-25T06:25:04.647+00:00","metadata":{"sex":"ALL","acronym":null,"age_range":"50 Years","comparator":"Unilateral hearing aid fitting group","organization":"Duke University","interventions":["Hearing amplification"],"registry_source":"ClinicalTrials.gov","outcome_measures":["Change in Hearing Aid Benefit as Measured by Abbreviated Profile of Hearing Aid Benefit (APHAB) — Baseline, 3 months","Hearing Aid Benefit, as Measured by the Measured by Glasgow Hearing Aid Benefit Profile (GHABP) — 3 months","Change in Hearing Aid Benefit as Measured by Bamford-Kowal-Bench Speech in Noise (BKB SIN) Test — Baseline, 3 months","Change in Hearing Aid Benefit as Measured by the Abbreviated Word Auditory Recognition and Recall Measure (WARRM) — Bas…","Hearing Aid Satisfaction as Measured by Satisfaction With Amplification in Daily Life (SADL) Survey — 3 months , 6 mont…","Change in Hearing Related Quality Life as Measured by Hearing Handicap Inventory for Elderly (HHIE) Survey Completion —…","Change in Complex Ecological Listening as Measured by the Speech Spatial Qualities (SSQ) Survey — Baseline, 3 months, 6…","Hours of Hearing Aid Use — 3 months","Hearing Aid Expectations as Measured by the Expected Consequences of Hearing Aid Ownership (ECHO) Survey — Baseline","Global Hearing Aid Outcomes as Measured by the International Outcome Inventory for Hearing Aids (IOI_HA) Survey — 3 mon…","Experience With Hearing Aid Assignment as Measured by a Self-reported Questionnaire — 3 months","Number of Participants in Each Arm That Chose 0, 1, or 2 Hearing Aids — 3 months","Change in Hearing Aid Benefit as Measured by Abbreviated Profile of Hearing Aid Benefit (APHAB) — Baseline, 6 months"],"design_description":"RANDOMIZED · PARALLEL · TREATMENT · NONE","source_has_results":true},"controlled_terms":["Hearing Loss","Hearing amplification"],"relevance_confidence":80,"source_quality_score":100,"freshness_score":65,"publication_state":"published","match_explanation":"Title contains controlled term: age-related hearing loss.","quality_checked_at":"2026-09-25T06:25:07.732232+00:00","duplicate_cluster_key":"id:nct04739436","duplicate_of_id":null,"evidence_snapshot":{"status":"structured","version":1,"duration":"2021-04-26 to 2024-09-20","comparator":"Unilateral hearing aid fitting group","confidence":"structured-source","population":"ALL · 50 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":"2026-09-25T06:25:04.660Z","intervention":["Hearing amplification"],"participants":278,"study_design":"RANDOMIZED · PARALLEL · 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":["Change in Hearing Aid Benefit as Measured by Abbreviated Profile of Hearing Aid Benefit (APHAB) — Baseline, 3 months","Hearing Aid Benefit, as Measured by the Measured by Glasgow Hearing Aid Benefit Profile (GHABP) — 3 months","Change in Hearing Aid Benefit as Measured by Bamford-Kowal-Bench Speech in Noise (BKB SIN) Test — Baseline, 3 months","Change in Hearing Aid Benefit as Measured by the Abbreviated Word Auditory Recognition and Recall Measure (WARRM) — Bas…","Hearing Aid Satisfaction as Measured by Satisfaction With Amplification in Daily Life (SADL) Survey — 3 months , 6 mont…","Change in Hearing Related Quality Life as Measured by Hearing Handicap Inventory for Elderly (HHIE) Survey Completion —…","Change in Complex Ecological Listening as Measured by the Speech Spatial Qualities (SSQ) Survey — Baseline, 3 months, 6…","Hours of Hearing Aid Use — 3 months","Hearing Aid Expectations as Measured by the Expected Consequences of Hearing Aid Ownership (ECHO) Survey — Baseline","Global Hearing Aid Outcomes as Measured by the International Outcome Inventory for Hearing Aids (IOI_HA) Survey — 3 mon…","Experience With Hearing Aid Assignment as Measured by a Self-reported Questionnaire — 3 months","Number of Participants in Each Arm That Chose 0, 1, or 2 Hearing Aids — 3 months","Change in Hearing Aid Benefit as Measured by Abbreviated Profile of Hearing Aid Benefit (APHAB) — Baseline, 6 months"],"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":["Title contains controlled term: age-related hearing loss.","Title supplies longevity context: age-related.","Study type is explicitly identified as INTERVENTIONAL."],"matched_fields":["title","title context","study type"],"relevance_score":80,"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/28375","automation_disclosure":"Generated automatically from cited source metadata. No scientist, clinician, researcher, editor, or human reviewer evaluates this publication before release."}