{"type":"trials","record":{"id":31303,"source_id":"clinicaltrials-gov","external_id":"NCT04932447","title":"Breathing Training for Improving Cardiovascular Health in Older Adults With Sleep Apnea","brief_summary":"This clinical research study will investigate the effects of respiratory strength training on blood pressure and cardiovascular health in adults who are 50 years of age and older and have been diagnosed with moderate or severe obstructive sleep apnea.","overall_status":"Active Not Recruiting","phases":[],"study_type":"INTERVENTIONAL","sponsor":"University of Arizona","enrollment":122,"countries":["United States"],"start_date":"2021-09-01","completion_date":"2026-09-30","last_update_date":"2025-10-08","source_url":"https://clinicaltrials.gov/study/NCT04932447","editorial_summary":"A registered study indexed because it matched monitored longevity research terms. Registry status: Active Not Recruiting. Registration does not establish safety or effectiveness.","first_seen_at":"2026-09-25T01:16:21.317971+00:00","last_seen_at":"2026-09-25T06:15:54.38+00:00","metadata":{"sex":"ALL","acronym":null,"age_range":"50 Years","comparator":null,"organization":"University of Arizona","interventions":["Inspiratory Muscle Strength Training"],"registry_source":"ClinicalTrials.gov","outcome_measures":["Change from baseline casual Systolic Blood Pressure at 24 weeks, 28 weeks, and 36 weeks — Measured at Baseline, Week 24…","Change from baseline 24-hour Ambulatory Systolic Blood Pressure at 24 weeks, 28 weeks, and 36 weeks — Measured at Basel…","Change from baseline Plasma Norepinephrine at 24 weeks, 28 weeks, and 36 weeks — Measured at Baseline, Week 24, Week 28…"],"design_description":"RANDOMIZED · PARALLEL · BASIC SCIENCE · DOUBLE","source_has_results":false},"controlled_terms":["Obstructive Sleep Apnea","Hypertension","Inspiratory Muscle Strength Training"],"relevance_confidence":100,"source_quality_score":100,"freshness_score":85,"publication_state":"published","match_explanation":"Title contains controlled term: sleep.","quality_checked_at":"2026-09-25T06:16:07.48358+00:00","duplicate_cluster_key":"id:nct04932447","duplicate_of_id":null,"evidence_snapshot":{"status":"structured","version":1,"duration":"2021-09-01 to 2026-09-30","comparator":null,"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":"2026-09-25T06:15:54.428Z","intervention":["Inspiratory Muscle Strength Training"],"participants":122,"study_design":"RANDOMIZED · PARALLEL · BASIC SCIENCE · DOUBLE","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 from baseline casual Systolic Blood Pressure at 24 weeks, 28 weeks, and 36 weeks — Measured at Baseline, Week 24…","Change from baseline 24-hour Ambulatory Systolic Blood Pressure at 24 weeks, 28 weeks, and 36 weeks — Measured at Basel…","Change from baseline Plasma Norepinephrine at 24 weeks, 28 weeks, and 36 weeks — Measured at Baseline, Week 24, Week 28…"],"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.","Abstract contains controlled term: sleep.","Source terminology contains: sleep.","Title supplies longevity context: older adult.","Study type is explicitly identified as INTERVENTIONAL."],"matched_fields":["title","abstract","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/31303","automation_disclosure":"Generated automatically from cited source metadata. No scientist, clinician, researcher, editor, or human reviewer evaluates this publication before release."}