{"type":"trials","record":{"id":31327,"source_id":"clinicaltrials-gov","external_id":"NCT01850992","title":"Reproductive Aging and Obstructive Sleep Apnea","brief_summary":"The purpose of this study is to identify the mechanism(s) by which OSA exacerbates the age-linked decline in systemic testosterone concentrations by conducting a randomized order sham-controlled crossover study that dynamically evaluates the entire hypothalamic-pituitary testicular axis across a wide age range.","overall_status":"Withdrawn","phases":[],"study_type":"INTERVENTIONAL","sponsor":"Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center","enrollment":0,"countries":["United States"],"start_date":"2013-05-01","completion_date":"2015-08-01","last_update_date":"2025-09-11","source_url":"https://clinicaltrials.gov/study/NCT01850992","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 Registry status: Withdrawn.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":"2026-09-25T01:16:21.317971+00:00","last_seen_at":"2026-09-25T03:05:05.722+00:00","metadata":{"acronym":null,"organization":"Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center","source_has_results":false},"controlled_terms":["Obstructive Sleep Apnea","Active CPAP","Sham CPAP"],"relevance_confidence":100,"source_quality_score":100,"freshness_score":65,"publication_state":"published","match_explanation":"Title contains controlled term: sleep.","quality_checked_at":"2026-09-25T03:05:13.494718+00:00","duplicate_cluster_key":"id:nct01850992","duplicate_of_id":null,"evidence_snapshot":{"status":"structured","version":1,"duration":"2013-05-01 to 2015-08-01","comparator":null,"confidence":"structured-source","population":null,"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":"2026-09-25T03:42:03.02286+00:00","intervention":[],"participants":0,"study_design":"INTERVENTIONAL","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":[],"regulatory_context":"Trial registration is not regulatory approval and does not establish that an intervention is available."},"clinical_trial_topics":[{"topic_slug":"sleep","is_published":true,"match_reasons":["Title contains controlled term: sleep.","Source terminology contains: sleep.","Title supplies longevity context: aging.","Study type is explicitly identified as INTERVENTIONAL."],"matched_fields":["title","controlled terminology","title context","study type"],"relevance_score":100,"intelligence_topics":{"name":"Sleep","slug":"sleep"}}],"content_sources":{"name":"ClinicalTrials.gov","homepage_url":"https://clinicaltrials.gov/"}},"canonical_url":"https://www.immortal.life/trials/31327","automation_disclosure":"Generated automatically from cited source metadata. No scientist, clinician, researcher, editor, or human reviewer evaluates this publication before release."}