{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Prospective+Observational+Study&page=28",
    "query": {
      "condition": "Prospective Observational Study",
      "page": 28
    },
    "page_size": 10
  },
  "pagination": {
    "page": 28,
    "page_size": 10,
    "total_count": 694,
    "total_pages": 70,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Prospective+Observational+Study&page=29&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Prospective+Observational+Study&page=27&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-20T18:21:58.704Z",
  "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": "NCT00321438",
      "title": "Observational Study of HIV-Infected Subjects With X4-Tropic or Non-Phenotypeable Virus",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HIV Infection"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2005-07",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2009-05-18",
      "last_synced_at": "2026-10-20T18:21:58.704Z",
      "location_count": 15,
      "location_summary": "Los Angeles, California • Tarzana, California • Washington D.C., District of Columbia + 11 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Tarzana",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Fort Myers",
          "state": "Florida"
        },
        {
          "city": "Key West",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00321438"
    },
    {
      "nct_id": "NCT05551052",
      "title": "CRC Detection Reliable Assessment With Blood",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Colorectal Cancer",
        "Adenomas Colon",
        "Colon Cancer",
        "Rectal Cancer",
        "Colon Neoplasm",
        "Colon Lesion",
        "Colon Disease",
        "Colon Polyp",
        "Polyps",
        "Adenoma",
        "Rectal Diseases",
        "Rectal Polyp",
        "Gastrointestinal Neoplasms",
        "Intestinal Neoplasms",
        "Colonic Diseases, Functional",
        "Intestinal Disease"
      ],
      "interventions": [
        {
          "name": "Next-Gen CRC Screening Test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "New Day Diagnostics",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 196,
      "start_date": "2022-09-08",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-05-29",
      "last_synced_at": "2026-10-20T18:21:58.704Z",
      "location_count": 3,
      "location_summary": "Chula Vista, California • San Diego, California",
      "locations": [
        {
          "city": "Chula Vista",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05551052"
    },
    {
      "nct_id": "NCT01703429",
      "title": "Complementary and Alternative Care in Multiple Sclerosis",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Bastyr University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 1000,
      "start_date": "2012-06",
      "completion_date": "2030-06",
      "has_results": false,
      "last_update_posted_date": "2020-02-11",
      "last_synced_at": "2026-10-20T18:21:58.704Z",
      "location_count": 1,
      "location_summary": "Kenmore, Washington",
      "locations": [
        {
          "city": "Kenmore",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01703429"
    },
    {
      "nct_id": "NCT05922657",
      "title": "A Registry to Gather Real World Use Data on the Cerene® Cryotherapy Device",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heavy Menstrual Bleeding",
        "Abnormal Uterine Bleeding",
        "Menorrhagia"
      ],
      "interventions": [
        {
          "name": "Cerene",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Channel Medsystems",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "25 Years and older · Female only"
      },
      "enrollment_count": 300,
      "start_date": "2023-06-09",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-22",
      "last_synced_at": "2026-10-20T18:21:58.704Z",
      "location_count": 2,
      "location_summary": "West Orange, New Jersey • Cincinnati, Ohio",
      "locations": [
        {
          "city": "West Orange",
          "state": "New Jersey"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05922657"
    },
    {
      "nct_id": "NCT03760237",
      "title": "Cardiovascular Function in Acute Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Leukemia, Myeloid, Acute",
        "Leukemia, Lymphoid, Acute",
        "Cardiotoxicity"
      ],
      "interventions": [
        {
          "name": "observation only",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 84,
      "start_date": "2018-12-10",
      "completion_date": "2024-05-06",
      "has_results": false,
      "last_update_posted_date": "2024-10-10",
      "last_synced_at": "2026-10-20T18:21:58.704Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03760237"
    },
    {
      "nct_id": "NCT00099541",
      "title": "Non-small Cell Lung Cancer Registry",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Non-Small-Cell Lung Cancer",
        "Pleural Effusion, Malignant"
      ],
      "interventions": [
        {
          "name": "zoledronic acid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2004-11",
      "completion_date": "2007-11",
      "has_results": false,
      "last_update_posted_date": "2009-11-23",
      "last_synced_at": "2026-10-20T18:21:58.704Z",
      "location_count": 101,
      "location_summary": "Birmingham, Alabama • Fort Smith, Arkansas • Anaheim, California + 93 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Fort Smith",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Concord",
          "state": "California"
        },
        {
          "city": "Fresno",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00099541"
    },
    {
      "nct_id": "NCT06833853",
      "title": "A Study for CTC Expression and cfDNA/RNA Assessment in Metastatic Breast Cancer Patients",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Metastatic Breast Cancer (MBC)"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Menarini Silicon Biosystems, INC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 187,
      "start_date": "2026-03-13",
      "completion_date": "2028-10",
      "has_results": false,
      "last_update_posted_date": "2026-03-18",
      "last_synced_at": "2026-10-20T18:21:58.704Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06833853"
    },
    {
      "nct_id": "NCT02031549",
      "title": "Prospective Observational Correlation of Sperm Assay Results With Blastocyst Formation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Infertility"
      ],
      "interventions": [
        {
          "name": "SpermComet assay",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Bruce Shapiro M.D.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 40,
      "start_date": "2014-01",
      "completion_date": "2014-04",
      "has_results": false,
      "last_update_posted_date": "2015-03-06",
      "last_synced_at": "2026-10-20T18:21:58.704Z",
      "location_count": 1,
      "location_summary": "Las Vegas, Nevada",
      "locations": [
        {
          "city": "Las Vegas",
          "state": "Nevada"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02031549"
    },
    {
      "nct_id": "NCT05330507",
      "title": "Prospective, Observational Study of Wellinks Effect on COPD Hospital Readmissions",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COPD",
        "Respiratory Tract Disease",
        "Pulmonary Disease, Chronic Obstructive",
        "Lung Diseases, Obstructive",
        "Lung Diseases"
      ],
      "interventions": [
        {
          "name": "Wellinks",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Convexity Scientific Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2022-07-05",
      "completion_date": "2024-06",
      "has_results": false,
      "last_update_posted_date": "2023-11-03",
      "last_synced_at": "2026-10-20T18:21:58.704Z",
      "location_count": 1,
      "location_summary": "Hartford, Connecticut",
      "locations": [
        {
          "city": "Hartford",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05330507"
    },
    {
      "nct_id": "NCT06952426",
      "title": "A Mobile App-Based Study to Evaluate Disease Burden and Treatment Patterns in Immunoglobulin A Nephropathy (IgAN) in the US",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Immunoglobulin A Nephropathy"
      ],
      "interventions": [
        {
          "name": "No intervention",
          "type": "OTHER"
        },
        {
          "name": "Other treatment",
          "type": "OTHER"
        },
        {
          "name": "Iptacopan",
          "type": "OTHER"
        },
        {
          "name": "Atrasentan",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2025-03-04",
      "completion_date": "2025-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-06-17",
      "last_synced_at": "2026-10-20T18:21:58.704Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06952426"
    }
  ]
}