{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+study+without+intervention&page=5",
    "query": {
      "intervention": "Observational study without intervention",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 132,
    "total_pages": 14,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+study+without+intervention&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+study+without+intervention&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-24T12:11:19.269Z",
  "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": "NCT04452149",
      "title": "Algorithm Using LINQ Sensors for Evaluation And Treatment of Heart Failure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure NYHA Class II",
        "Heart Failure NYHA Class III"
      ],
      "interventions": [
        {
          "name": "Reveal LINQ™ Insertable Cardiac Monitor with investigational ALLEVIATE-HF RAMware download",
          "type": "DEVICE"
        },
        {
          "name": "Medication intervention",
          "type": "OTHER"
        },
        {
          "name": "Not Randomized to Device or Medication Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Medtronic Cardiac Rhythm and Heart Failure",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 826,
      "start_date": "2020-09-03",
      "completion_date": "2025-06-02",
      "has_results": true,
      "last_update_posted_date": "2026-08-26",
      "last_synced_at": "2026-10-24T12:11:19.269Z",
      "location_count": 53,
      "location_summary": "Mesa, Arizona • Jonesboro, Arkansas • Mission Viejo, California + 47 more",
      "locations": [
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Mission Viejo",
          "state": "California"
        },
        {
          "city": "Oxnard",
          "state": "California"
        },
        {
          "city": "Stockton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04452149"
    },
    {
      "nct_id": "NCT04557748",
      "title": "LURN: Urinary Urgency Phenotyping Protocol",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lower Urinary Tract Symptoms"
      ],
      "interventions": [
        {
          "name": "Observational",
          "type": "OTHER"
        },
        {
          "name": "Observational Controls",
          "type": "OTHER"
        },
        {
          "name": "Central Sensitization",
          "type": "OTHER"
        },
        {
          "name": "Physical Activity and Sleep Tracker",
          "type": "OTHER"
        },
        {
          "name": "Physical Activity and Sleep Tracker Controls",
          "type": "OTHER"
        },
        {
          "name": "Organ-Based",
          "type": "OTHER"
        },
        {
          "name": "Qualitative Assessment of Patients with Urinary Urgency",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Arbor Research Collaborative for Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1030,
      "start_date": "2021-02-17",
      "completion_date": "2025-08-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-24",
      "last_synced_at": "2026-10-24T12:11:19.269Z",
      "location_count": 6,
      "location_summary": "Chicago, Illinois • Iowa City, Iowa • Ann Arbor, Michigan + 3 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04557748"
    },
    {
      "nct_id": "NCT00006363",
      "title": "Combination Chemotherapy With or Without PSC 833, Peripheral Stem Cell Transplantation, and/or Interleukin-2 in Treating Patients With Acute Myeloid Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Adult Acute Basophilic Leukemia",
        "Adult Acute Eosinophilic Leukemia",
        "Adult Acute Erythroid Leukemia (M6)",
        "Adult Acute Megakaryoblastic Leukemia (M7)",
        "Adult Acute Minimally Differentiated Myeloid Leukemia (M0)",
        "Adult Acute Monoblastic Leukemia (M5a)",
        "Adult Acute Monoblastic Leukemia and Acute Monocytic Leukemia (M5)",
        "Adult Acute Monocytic Leukemia (M5b)",
        "Adult Acute Myeloblastic Leukemia With Maturation (M2)",
        "Adult Acute Myeloblastic Leukemia Without Maturation (M1)",
        "Adult Acute Myeloid Leukemia With 11q23 (MLL) Abnormalities",
        "Adult Acute Myeloid Leukemia With Del(5q)",
        "Adult Acute Myeloid Leukemia With Inv(16)(p13;q22)",
        "Adult Acute Myeloid Leukemia With t(16;16)(p13;q22)",
        "Adult Acute Myeloid Leukemia With t(8;21)(q22;q22)",
        "Adult Acute Myelomonocytic Leukemia (M4)",
        "Adult Erythroleukemia (M6a)",
        "Adult Pure Erythroid Leukemia (M6b)",
        "Childhood Acute Basophilic Leukemia",
        "Childhood Acute Eosinophilic Leukemia",
        "Childhood Acute Erythroleukemia (M6)",
        "Childhood Acute Megakaryocytic Leukemia (M7)",
        "Childhood Acute Minimally Differentiated Myeloid Leukemia (M0)",
        "Childhood Acute Monoblastic Leukemia (M5a)",
        "Childhood Acute Monoblastic Leukemia and Acute Monocytic Leukemia (M5)",
        "Childhood Acute Monocytic Leukemia (M5b)",
        "Childhood Acute Myeloblastic Leukemia With Maturation (M2)",
        "Childhood Acute Myeloblastic Leukemia Without Maturation (M1)",
        "Childhood Acute Myelomonocytic Leukemia (M4)",
        "Childhood Myelodysplastic Syndromes",
        "de Novo Myelodysplastic Syndromes",
        "Untreated Adult Acute Myeloid Leukemia",
        "Untreated Childhood Acute Myeloid Leukemia and Other Myeloid Malignancies"
      ],
      "interventions": [
        {
          "name": "cytarabine",
          "type": "DRUG"
        },
        {
          "name": "daunorubicin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "etoposide",
          "type": "DRUG"
        },
        {
          "name": "valspodar",
          "type": "DRUG"
        },
        {
          "name": "filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "busulfan",
          "type": "DRUG"
        },
        {
          "name": "autologous hematopoietic stem cell transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "peripheral blood stem cell transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "aldesleukin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "clinical observation",
          "type": "OTHER"
        },
        {
          "name": "pharmacological study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "15 Years to 59 Years"
      },
      "enrollment_count": 720,
      "start_date": "2000-11",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-06-04",
      "last_synced_at": "2026-10-24T12:11:19.269Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006363"
    },
    {
      "nct_id": "NCT02252159",
      "title": "Prospective Observational Study Of Patients With Polycythemia Vera In US Clinical Practices (REVEAL)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "MPN (Myeloproliferative Neoplasms)"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Incyte Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2544,
      "start_date": "2014-07-31",
      "completion_date": "2019-08-03",
      "has_results": false,
      "last_update_posted_date": "2021-04-26",
      "last_synced_at": "2026-10-24T12:11:19.269Z",
      "location_count": 264,
      "location_summary": "Green Valley, Arizona • Safford, Arizona • Scottsdale, Arizona + 261 more",
      "locations": [
        {
          "city": "Green Valley",
          "state": "Arizona"
        },
        {
          "city": "Safford",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Yuma",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02252159"
    },
    {
      "nct_id": "NCT04557059",
      "title": "A Study of Adding Apalutamide to Radiotherapy and LHRH Agonist in High-Risk Patients With Hormone-Sensitive Prostate Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Prostatic Neoplasms"
      ],
      "interventions": [
        {
          "name": "Radiotherapy",
          "type": "RADIATION"
        },
        {
          "name": "LHRHa",
          "type": "DRUG"
        },
        {
          "name": "Apalutamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DRUG"
      ],
      "sponsor": "Janssen Pharmaceutica N.V., Belgium",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 691,
      "start_date": "2020-11-12",
      "completion_date": "2031-09-15",
      "has_results": false,
      "last_update_posted_date": "2026-09-25",
      "last_synced_at": "2026-10-24T12:11:19.269Z",
      "location_count": 13,
      "location_summary": "Tucson, Arizona • Little Rock, Arkansas • Lakewood, Colorado + 10 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Lakewood",
          "state": "Colorado"
        },
        {
          "city": "Hialeah",
          "state": "Florida"
        },
        {
          "city": "Jeffersonville",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04557059"
    },
    {
      "nct_id": "NCT01905098",
      "title": "Complementary and Alternative Medicine Sauna Detoxification Study: Phase I",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hyperthermia"
      ],
      "interventions": [
        {
          "name": "Sauna Detoxification Protocol",
          "type": "OTHER"
        },
        {
          "name": "Observation Sessions",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Bastyr University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "21 Years to 35 Years"
      },
      "enrollment_count": 1,
      "start_date": "2013-07",
      "completion_date": "2014-04",
      "has_results": false,
      "last_update_posted_date": "2015-04-17",
      "last_synced_at": "2026-10-24T12:11:19.269Z",
      "location_count": 1,
      "location_summary": "Kenmore, Washington",
      "locations": [
        {
          "city": "Kenmore",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01905098"
    },
    {
      "nct_id": "NCT05671887",
      "title": "DREAM: Double Lung Transplant REgistry Aimed for Lung-limited Malignancies",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lung Cancer",
        "Bilateral Cancer",
        "Lung Transplant"
      ],
      "interventions": [
        {
          "name": "Double Lung Transplantation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Northwestern University",
      "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": 125,
      "start_date": "2022-11-16",
      "completion_date": "2032-11",
      "has_results": false,
      "last_update_posted_date": "2026-10-21",
      "last_synced_at": "2026-10-24T12:11:19.269Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05671887"
    },
    {
      "nct_id": "NCT05713916",
      "title": "Effect of a Targeted Notification and Clinical Support Pathway on Individuals With Left Ventricular Hypertrophy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertrophy, Left Ventricular",
        "Hypertension",
        "Cardiomyopathies"
      ],
      "interventions": [
        {
          "name": "Intervention: Population Health Coordinator",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "30 Years to 75 Years"
      },
      "enrollment_count": 648,
      "start_date": "2023-03-20",
      "completion_date": "2024-10-01",
      "has_results": false,
      "last_update_posted_date": "2024-11-22",
      "last_synced_at": "2026-10-24T12:11:19.269Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05713916"
    },
    {
      "nct_id": "NCT05503927",
      "title": "A Study to Evaluate the Safety of Exposure to Wegovy During Pregnancy",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pregnancy",
        "Obesity",
        "Overweight"
      ],
      "interventions": [
        {
          "name": "No Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Novo Nordisk A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "15 Years to 50 Years · Female only"
      },
      "enrollment_count": 2701,
      "start_date": "2020-02-01",
      "completion_date": "2027-08-15",
      "has_results": false,
      "last_update_posted_date": "2026-07-21",
      "last_synced_at": "2026-10-24T12:11:19.269Z",
      "location_count": 2,
      "location_summary": "Ann Arbor, Michigan • Princeton, New Jersey",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Princeton",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05503927"
    },
    {
      "nct_id": "NCT05743465",
      "title": "A Study to Evaluate Available Treatment Information of Ponatinib, Bosutinib, Imatinib, Dasatinib and Nilotinib in Adults With Chronic Myeloid Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Leukemia"
      ],
      "interventions": [
        {
          "name": "No Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Takeda",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1769,
      "start_date": "2021-10-06",
      "completion_date": "2022-11-30",
      "has_results": false,
      "last_update_posted_date": "2023-03-02",
      "last_synced_at": "2026-10-24T12:11:19.269Z",
      "location_count": 1,
      "location_summary": "Cambridge, Massachusetts",
      "locations": [
        {
          "city": "Cambridge",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05743465"
    }
  ]
}