{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Respiratory+Tract+Infections+%28RTI%29&page=4",
    "query": {
      "condition": "Respiratory Tract Infections (RTI)",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 3924,
    "total_pages": 393,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Respiratory+Tract+Infections+%28RTI%29&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Respiratory+Tract+Infections+%28RTI%29&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-13T20:30:13.971Z",
  "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": "NCT04682548",
      "title": "Estimating Prevalence of COVID-19 Infection and SARS-CoV-2 Antibodies in MS Patients",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis",
        "Covid19"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 920,
      "start_date": "2021-01-05",
      "completion_date": "2022-09-15",
      "has_results": false,
      "last_update_posted_date": "2022-11-03",
      "last_synced_at": "2026-10-13T20:30:13.971Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04682548"
    },
    {
      "nct_id": "NCT00621504",
      "title": "Comparative Study of Ceftaroline vs. Ceftriaxone in Adult Subjects With Community-Acquired Pneumonia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Bacterial Pneumonia"
      ],
      "interventions": [
        {
          "name": "Ceftaroline fosamil for Injection",
          "type": "DRUG"
        },
        {
          "name": "IV Ceftriaxone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Clarithromycin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Forest Laboratories",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 606,
      "start_date": "2008-01",
      "completion_date": "2009-06",
      "has_results": true,
      "last_update_posted_date": "2017-03-14",
      "last_synced_at": "2026-10-13T20:30:13.971Z",
      "location_count": 12,
      "location_summary": "Los Angeles, California • Pasadena, California • Sacramento, California + 9 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00621504"
    },
    {
      "nct_id": "NCT04644276",
      "title": "Mask Adhesive Institutional Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Respiratory Failure",
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Mask with Mask Adhesive/Arm 1",
          "type": "DEVICE"
        },
        {
          "name": "Mask without Mask Adhesive / Arm 2",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Philips Clinical & Medical Affairs Global",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 7,
      "start_date": "2021-02-17",
      "completion_date": "2021-12-09",
      "has_results": true,
      "last_update_posted_date": "2023-05-26",
      "last_synced_at": "2026-10-13T20:30:13.971Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04644276"
    },
    {
      "nct_id": "NCT04373460",
      "title": "Convalescent Plasma to Limit SARS-CoV-2 Associated Complications",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "SARS-CoV 2"
      ],
      "interventions": [
        {
          "name": "SARS-CoV-2 convalescent plasma",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Plasma from a volunteer donor",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1225,
      "start_date": "2020-06-03",
      "completion_date": "2022-12-14",
      "has_results": true,
      "last_update_posted_date": "2023-06-02",
      "last_synced_at": "2026-10-13T20:30:13.971Z",
      "location_count": 29,
      "location_summary": "Birmingham, Alabama • Chinle, Arizona • Phoenix, Arizona + 24 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Chinle",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04373460"
    },
    {
      "nct_id": "NCT05167227",
      "title": "Does a Technology Enabled Multi-disciplinary Team-based Care Model for the Management of Long COVID and Other Fatiguing Illnesses Improve Clinical Care of Patients and Represent a Sustainable Approach Within a Federally Qualified Health Center?",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "SARS-CoV-2 Acute Respiratory Disease",
        "Myalgic Encephalomyelitis",
        "Chronic Fatigue Syndrome",
        "Post-acute Sequelae of SARS-COV-2 Infection",
        "Post COVID-19 Condition"
      ],
      "interventions": [
        {
          "name": "Extension for Community Healthcare Outcomes",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Family Health Centers of San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2021-11-30",
      "completion_date": "2025-11-28",
      "has_results": false,
      "last_update_posted_date": "2025-08-06",
      "last_synced_at": "2026-10-13T20:30:13.971Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05167227"
    },
    {
      "nct_id": "NCT01162486",
      "title": "Pharmacokinetics, Safety and Tolerability of Escalating Rifapentine Doses in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Tuberculosis",
        "Tuberculosis, Pulmonary"
      ],
      "interventions": [
        {
          "name": "Rifampin & midazolam",
          "type": "DRUG"
        },
        {
          "name": "rifapentine and midazolam",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 37,
      "start_date": "2010-04",
      "completion_date": "2011-03",
      "has_results": true,
      "last_update_posted_date": "2019-05-07",
      "last_synced_at": "2026-10-13T20:30:13.971Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01162486"
    },
    {
      "nct_id": "NCT04690413",
      "title": "NOWDx Test for the Detection of Antibodies to COVID-19",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19",
        "SARS-CoV-2",
        "Coronavirus"
      ],
      "interventions": [
        {
          "name": "NOWDx COVID-19 Test",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "NOWDiagnostics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 129,
      "start_date": "2020-09-01",
      "completion_date": "2020-12-31",
      "has_results": true,
      "last_update_posted_date": "2024-03-01",
      "last_synced_at": "2026-10-13T20:30:13.971Z",
      "location_count": 3,
      "location_summary": "Tucson, Arizona • West Palm Beach, Florida • Jackson, Tennessee",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "West Palm Beach",
          "state": "Florida"
        },
        {
          "city": "Jackson",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04690413"
    },
    {
      "nct_id": "NCT04482673",
      "title": "Vitamin D Supplementation in the Prevention and Mitigation of COVID-19 Infection",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "COVID-19",
        "Vitamin D Deficiency",
        "Respiratory Viral Infection"
      ],
      "interventions": [
        {
          "name": "Daily Vitamin D3",
          "type": "DRUG"
        },
        {
          "name": "Daily placebo",
          "type": "DRUG"
        },
        {
          "name": "Bolus vitamin D3",
          "type": "DRUG"
        },
        {
          "name": "Bolus placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 95,
      "start_date": "2020-07-31",
      "completion_date": "2023-12-31",
      "has_results": false,
      "last_update_posted_date": "2023-02-24",
      "last_synced_at": "2026-10-13T20:30:13.971Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04482673"
    },
    {
      "nct_id": "NCT04960397",
      "title": "Assess the Safety and Immunogenicity of One or Two Doses of Sing2016 M2SR H3N2 Influenza Vaccine",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "H3N2 Influenza"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Sing2016 M2SR H3N2",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "6 Months to 17 Years"
      },
      "enrollment_count": 140,
      "start_date": "2021-09-10",
      "completion_date": "2024-04-12",
      "has_results": true,
      "last_update_posted_date": "2025-08-03",
      "last_synced_at": "2026-10-13T20:30:13.971Z",
      "location_count": 4,
      "location_summary": "Iowa City, Iowa • Baltimore, Maryland • Durham, North Carolina + 1 more",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04960397"
    },
    {
      "nct_id": "NCT01030146",
      "title": "Management of Allergic Rhinitis Patients With Nasal Steroids and NeilMed® Sinus Rinse™ System With Isotonic Saline",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Rhinitis"
      ],
      "interventions": [
        {
          "name": "NeilMed® Sinus Rinse™ System with Isotonic Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Medical University of South Carolina",
      "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": 40,
      "start_date": "2009-12",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2018-07-23",
      "last_synced_at": "2026-10-13T20:30:13.971Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01030146"
    }
  ]
}