{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Room+Air+Challenge", "query": { "intervention": "Room Air Challenge" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 8, "total_pages": 1, "next_page_url": null, "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-09-06T11:32:04.902Z", "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.", "notes": [ "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.", "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.", "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees." ], "trials": [ { "nct_id": "NCT01257191", "title": "A Study to Compare the Effects of Different Sized Particles on Cells in the Nose", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Hypersensitivity, Immediate", "Atopic Hypersensitivity" ], "interventions": [ { "name": "Carbon Black", "type": "DRUG" }, { "name": "Diesel Exhaust Particles", "type": "DRUG" }, { "name": "Fine Concentrated Ambient Particles", "type": "DRUG" }, { "name": "Ultrafine Concentrated Ambient Particles", "type": "DRUG" }, { "name": "Saline", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of California, Los Angeles", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 25, "start_date": "2010-04", "completion_date": "2012-01", "has_results": false, "last_update_posted_date": "2017-01-11", "last_synced_at": "2026-09-06T11:32:04.902Z", "location_count": 1, "location_summary": "Los Angeles, California", "locations": [ { "city": "Los Angeles", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01257191" }, { "nct_id": "NCT04058132", "title": "Cerebrovascular Reactivity Assessed With fNIRS as a Biomarker of TCVI After Acute Traumatic Brain Injury in Military", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Traumatic Brain Injury" ], "interventions": [ { "name": "Sildenafil Citrate 50Mg Tab", "type": "DRUG" }, { "name": "functional Near-infrared Spectroscopy (fNIRS)", "type": "DEVICE" }, { "name": "Carbon Dioxide (CO2) 5%", "type": "OTHER" }, { "name": "Neuropsychological Assessments", "type": "OTHER" }, { "name": "Gadolinium contrast infusion", "type": "DRUG" }, { "name": "Blood sample collection for research purposes", "type": "PROCEDURE" }, { "name": "Structural brain Magnetic Resonance Imaging (MRI", "type": "OTHER" } ], "intervention_types": [ "DRUG", "DEVICE", "OTHER", "PROCEDURE" ], "sponsor": "Uniformed Services University of the Health Sciences", "sponsor_class": "FED", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "55 Years", "sex": "ALL", "summary": "18 Years to 55 Years" }, "enrollment_count": 1, "start_date": "2019-08-09", "completion_date": "2020-03-01", "has_results": false, "last_update_posted_date": "2024-02-28", "last_synced_at": "2026-09-06T11:32:04.902Z", "location_count": 1, "location_summary": "Bethesda, Maryland", "locations": [ { "city": "Bethesda", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT04058132" }, { "nct_id": "NCT03644277", "title": "A Multi-Center Clinical Trial in Individuals With Spinal Cord Injury", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Spinal Cord Injuries" ], "interventions": [ { "name": "Acute Intermitted Hypoxia", "type": "OTHER" }, { "name": "Massed Practise", "type": "PROCEDURE" }, { "name": "Rapael Glove", "type": "OTHER" } ], "intervention_types": [ "OTHER", "PROCEDURE" ], "sponsor": "Shirley Ryan AbilityLab", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "75 Years", "sex": "ALL", "summary": "18 Years to 75 Years" }, "enrollment_count": 121, "start_date": "2018-07-01", "completion_date": "2026-07-01", "has_results": false, "last_update_posted_date": "2025-07-24", "last_synced_at": "2026-09-06T11:32:04.902Z", "location_count": 3, "location_summary": "Chicago, Illinois • East Hanover, New Jersey", "locations": [ { "city": "Chicago", "state": "Illinois" }, { "city": "Chicago", "state": "Illinois" }, { "city": "East Hanover", "state": "New Jersey" } ], "official_url": "https://clinicaltrials.gov/study/NCT03644277" }, { "nct_id": "NCT01563107", "title": "Dietary Sodium's Effect on Urinary Sodium and Dopamine Excretion in Patients With Postural Tachycardia Syndrome", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Postural Orthostatic Tachycardia Syndrome" ], "interventions": [ { "name": "Plasma Volume", "type": "RADIATION" }, { "name": "Exercise Capacity Test - Bicycle", "type": "PROCEDURE" }, { "name": "Posture Study", "type": "PROCEDURE" } ], "intervention_types": [ "RADIATION", "PROCEDURE" ], "sponsor": "Vanderbilt University Medical Center", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "50 Years", "sex": "FEMALE", "summary": "18 Years to 50 Years · Female only" }, "enrollment_count": 38, "start_date": "2012-03", "completion_date": "2020-12", "has_results": true, "last_update_posted_date": "2022-01-25", "last_synced_at": "2026-09-06T11:32:04.902Z", "location_count": 1, "location_summary": "Nashville, Tennessee", "locations": [ { "city": "Nashville", "state": "Tennessee" } ], "official_url": "https://clinicaltrials.gov/study/NCT01563107" }, { "nct_id": "NCT03464396", "title": "Prematurity-Related Ventilatory Control", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Respiratory Control in Premature Infants" ], "interventions": [ { "name": "Bedside Physiology study", "type": "OTHER" }, { "name": "Carotid Body Function Test", "type": "OTHER" }, { "name": "Room Air Challenge", "type": "OTHER" }, { "name": "Hypoxia Challenge Test", "type": "OTHER" }, { "name": "Effects of Nasal Cannula Flow", "type": "OTHER" }, { "name": "Magnetic Resonance Imaging", "type": "DIAGNOSTIC_TEST" }, { "name": "Echocardiogram", "type": "DIAGNOSTIC_TEST" }, { "name": "Blood Sample", "type": "OTHER" } ], "intervention_types": [ "OTHER", "DIAGNOSTIC_TEST" ], "sponsor": "Washington University School of Medicine", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "1 Day", "maximum_age": "28 Days", "sex": "ALL", "summary": "1 Day to 28 Days" }, "enrollment_count": 177, "start_date": "2018-05-14", "completion_date": "2022-03-09", "has_results": false, "last_update_posted_date": "2023-01-31", "last_synced_at": "2026-09-06T11:32:04.902Z", "location_count": 1, "location_summary": "St Louis, Missouri", "locations": [ { "city": "St Louis", "state": "Missouri" } ], "official_url": "https://clinicaltrials.gov/study/NCT03464396" }, { "nct_id": "NCT02995837", "title": "Cerebral Blood Flow and Childhood Obstructive Sleep Apnea", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Obstructive Sleep Apnea Syndrome" ], "interventions": [ { "name": "Sleep Study", "type": "OTHER" }, { "name": "Neurocognitive Testing", "type": "OTHER" }, { "name": "CBF During Wakefulness", "type": "OTHER" }, { "name": "CBF During Sleep", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Children's Hospital of Philadelphia", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "6 Years", "maximum_age": "12 Years", "sex": "ALL", "summary": "6 Years to 12 Years" }, "enrollment_count": 47, "start_date": "2016-10", "completion_date": "2022-01-01", "has_results": true, "last_update_posted_date": "2024-07-09", "last_synced_at": "2026-09-06T11:32:04.902Z", "location_count": 1, "location_summary": "Philadelphia, Pennsylvania", "locations": [ { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT02995837" }, { "nct_id": "NCT01547117", "title": "Dietary Salt in Postural Tachycardia Syndrome", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Postural Orthostatic Tachycardia Syndrome" ], "interventions": [ { "name": "Blood Volume", "type": "RADIATION" }, { "name": "Total Blood Volume", "type": "RADIATION" }, { "name": "Exercise Capacity Test - Bicycle", "type": "PROCEDURE" }, { "name": "Posture Study", "type": "PROCEDURE" } ], "intervention_types": [ "RADIATION", "PROCEDURE" ], "sponsor": "Vanderbilt University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "50 Years", "sex": "ALL", "summary": "18 Years to 50 Years" }, "enrollment_count": 38, "start_date": "2012-03", "completion_date": "2021-12", "has_results": true, "last_update_posted_date": "2022-02-22", "last_synced_at": "2026-09-06T11:32:04.902Z", "location_count": 1, "location_summary": "Nashville, Tennessee", "locations": [ { "city": "Nashville", "state": "Tennessee" } ], "official_url": "https://clinicaltrials.gov/study/NCT01547117" }, { "nct_id": "NCT02990078", "title": "Non-invasive Measurement of Cerebrovascular Reactivity After Traumatic Brain Injury", "overall_status": "TERMINATED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "TBI" ], "interventions": [ { "name": "Sildenafil citrate", "type": "DRUG" }, { "name": "Functional Near Infared Spectroscopy", "type": "DEVICE" }, { "name": "Hypercapnia Challenge", "type": "OTHER" } ], "intervention_types": [ "DRUG", "DEVICE", "OTHER" ], "sponsor": "University of Pennsylvania", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 26, "start_date": "2016-12", "completion_date": "2022-09-30", "has_results": false, "last_update_posted_date": "2022-10-13", "last_synced_at": "2026-09-06T11:32:04.902Z", "location_count": 1, "location_summary": "Philadelphia, Pennsylvania", "locations": [ { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT02990078" } ] }