{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+element%2C+observational+study.",
    "query": {
      "intervention": "No intervention element, observational study."
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 13,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+element%2C+observational+study.&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-13T08:58:26.957Z",
  "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": "NCT01565551",
      "title": "Transforming Research and Clinical Knowledge in TBI Pilot",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Traumatic Brain Injury"
      ],
      "interventions": [
        {
          "name": "N/A (Observational Study)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 650,
      "start_date": "2010-04",
      "completion_date": "2013-12",
      "has_results": true,
      "last_update_posted_date": "2014-02-17",
      "last_synced_at": "2026-09-13T08:58:26.957Z",
      "location_count": 4,
      "location_summary": "San Francisco, California • New York, New York • Pittsburgh, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01565551"
    },
    {
      "nct_id": "NCT03191357",
      "title": "Evaluation of Military Service and Family Members for Post Concussive and Posttraumatic Stress Symptoms",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "TBI (Traumatic Brain Injury)"
      ],
      "interventions": [
        {
          "name": "n/a observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Uniformed Services University of the Health Sciences",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 424,
      "start_date": "2014-03",
      "completion_date": "2019-07",
      "has_results": false,
      "last_update_posted_date": "2020-11-17",
      "last_synced_at": "2026-09-13T08:58:26.957Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03191357"
    },
    {
      "nct_id": "NCT03907410",
      "title": "The Tailored Adherence Incentives for Childhood Asthma Medications (TAICAM) Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Medication Adherence",
        "Asthma in Children"
      ],
      "interventions": [
        {
          "name": "Nominal Financial Incentives",
          "type": "OTHER"
        },
        {
          "name": "Daily Adherence Reminders/Adherence Performance Feedback",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "5 Years to 12 Years"
      },
      "enrollment_count": 125,
      "start_date": "2019-09-01",
      "completion_date": "2022-07-17",
      "has_results": true,
      "last_update_posted_date": "2024-03-18",
      "last_synced_at": "2026-09-13T08:58:26.957Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03907410"
    },
    {
      "nct_id": "NCT07639658",
      "title": "Temple Massager System Study in Women Ages 35-65",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Tension Headaches",
        "Stress",
        "Sleep Quality",
        "Quality of Life"
      ],
      "interventions": [
        {
          "name": "Temple Massager System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "MOQ Collective, Ltd",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "35 Years to 65 Years · Female only"
      },
      "enrollment_count": 68,
      "start_date": "2026-06-10",
      "completion_date": "2026-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-04",
      "last_synced_at": "2026-09-13T08:58:26.957Z",
      "location_count": 1,
      "location_summary": "Fairfax, California",
      "locations": [
        {
          "city": "Fairfax",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07639658"
    },
    {
      "nct_id": "NCT02437773",
      "title": "Neurocircuit Mechanisms of OCD Across the Lifespan",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obsessive-Compulsive Disorder"
      ],
      "interventions": [
        {
          "name": "Cognitive Behavioral Therapy - Adolescents",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Stress Management Therapy - Adolescents",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Optional CBT - Adolescents",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognitive Behavioral Therapy - Adults",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Stress Management Therapy - Adults",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Optional CBT - Adults",
          "type": "BEHAVIORAL"
        },
        {
          "name": "fMRI only - Healthy Control Adults",
          "type": "OTHER"
        },
        {
          "name": "fMRI only - Healthy Control Adolescents",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "13 Years to 45 Years"
      },
      "enrollment_count": 206,
      "start_date": "2015-03-09",
      "completion_date": "2020-10-21",
      "has_results": false,
      "last_update_posted_date": "2020-11-06",
      "last_synced_at": "2026-09-13T08:58:26.957Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02437773"
    },
    {
      "nct_id": "NCT03637465",
      "title": "Increasing Water Access and Appeal in Community Recreation Centers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Behavior"
      ],
      "interventions": [
        {
          "name": "Hydrate Philly",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Philadelphia Department of Public Health",
      "sponsor_class": "OTHER_GOV",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "3 Years to 100 Years"
      },
      "enrollment_count": 28,
      "start_date": "2017-05-01",
      "completion_date": "2018-10-30",
      "has_results": false,
      "last_update_posted_date": "2019-04-02",
      "last_synced_at": "2026-09-13T08:58:26.957Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03637465"
    },
    {
      "nct_id": "NCT02995941",
      "title": "Shoulder Symptom Irritability Scale: A Single-Blinded Observational Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Shoulder Pain",
        "Pain"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "St. Luke's Hospital and Health Network, Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 138,
      "start_date": "2016-12",
      "completion_date": "2017-07",
      "has_results": false,
      "last_update_posted_date": "2019-09-20",
      "last_synced_at": "2026-09-13T08:58:26.957Z",
      "location_count": 17,
      "location_summary": "Washington, New Jersey • Allentown, Pennsylvania • Bath, Pennsylvania + 11 more",
      "locations": [
        {
          "city": "Washington",
          "state": "New Jersey"
        },
        {
          "city": "Allentown",
          "state": "Pennsylvania"
        },
        {
          "city": "Allentown",
          "state": "Pennsylvania"
        },
        {
          "city": "Bath",
          "state": "Pennsylvania"
        },
        {
          "city": "Bethlehem",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02995941"
    },
    {
      "nct_id": "NCT02435472",
      "title": "Active Surveillance Exercise Clinical Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Localized Prostate Cancer",
        "Active Surveillance for Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Exercise",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cardiopulmonary Exercise Test (CPET)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 104,
      "start_date": "2016-06-21",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-04-11",
      "last_synced_at": "2026-09-13T08:58:26.957Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02435472"
    },
    {
      "nct_id": "NCT03600675",
      "title": "Determinants of Bone Mineral Density and Metabolic Syndrome in South Asian Indian Men",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Osteoporosis"
      ],
      "interventions": [
        {
          "name": "No intervention element, observational study.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Drexel University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "50 Years",
        "sex": "MALE",
        "summary": "20 Years to 50 Years · Male only"
      },
      "enrollment_count": 60,
      "start_date": "2015-05-08",
      "completion_date": "2021-05-08",
      "has_results": false,
      "last_update_posted_date": "2021-09-27",
      "last_synced_at": "2026-09-13T08:58:26.957Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03600675"
    },
    {
      "nct_id": "NCT04028479",
      "title": "The Registry of Oncology Outcomes Associated With Testing and Treatment",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Adenocarcinoma",
        "Adenocystic Carcinoma",
        "Anal Cancer",
        "Appendix Cancer",
        "Brain Tumor",
        "Glioblastoma",
        "Astrocytoma",
        "Bile Duct Cancer",
        "Cholangiocarcinoma",
        "Bladder Cancer",
        "Bone Cancer",
        "Synovial Sarcoma",
        "Chondrosarcoma",
        "Liposarcoma",
        "Sarcoma, Kaposi",
        "Sarcoma,Soft Tissue",
        "Sarcoma",
        "Osteosarcoma",
        "CNS Cancer",
        "Brain Stem Neoplasms",
        "Breast Cancer",
        "Cervical Cancer",
        "Colorectal Cancer",
        "Rectal Cancer",
        "Colon Cancer",
        "Esophageal Cancer",
        "Esophagus Cancer",
        "Cancer of Colon",
        "Pancreatic Cancer",
        "Cancer of Pancreas",
        "Testis Cancer",
        "Testicular Cancer",
        "Ureter Cancer",
        "Renal Cell Carcinoma",
        "Kidney Cancer",
        "Gestational Trophoblastic Tumor",
        "Head and Neck Neoplasms",
        "Parotid Tumor",
        "Larynx Cancer",
        "Tongue Cancer",
        "Pharynx Cancer",
        "Salivary Gland Cancer",
        "Acute Myeloid Leukemia",
        "Chronic Myeloid Leukemia",
        "Acute Lymphoblastic Leukemia",
        "Multiple Myeloma",
        "Non Hodgkin Lymphoma",
        "Carcinoid Tumor",
        "Lung Cancer",
        "Neuroendocrine Tumors",
        "Mesothelioma",
        "Thyroid Cancer",
        "Parathyroid Neoplasms",
        "Adrenal Cancer",
        "Small Bowel Cancer",
        "Stomach Cancer",
        "Liver Cancer",
        "Hepatic Cancer",
        "Melanoma",
        "Skin Cancer",
        "Unknown Primary Tumors",
        "Uterine Cancer",
        "Fallopian Tube Cancer",
        "Ovarian Cancer",
        "Prostate Cancer",
        "Vaginal Cancer",
        "Penile Cancer",
        "Vulvar Cancer",
        "Waldenstrom Macroglobulinemia",
        "Cancer, Advanced",
        "Thymus Cancer",
        "Nasopharyngeal Carcinoma",
        "Multiple Endocrine Neoplasia",
        "Pheochromocytoma",
        "Small Cell Carcinoma",
        "Pulmonary Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biomarker Testing (L)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Systemic Treatment (T)",
          "type": "DRUG"
        },
        {
          "name": "Patient Reported Outcomes (P)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Taproot Health",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 167,
      "start_date": "2021-05-05",
      "completion_date": "2024-10-31",
      "has_results": false,
      "last_update_posted_date": "2024-12-18",
      "last_synced_at": "2026-09-13T08:58:26.957Z",
      "location_count": 2,
      "location_summary": "Idaho Falls, Idaho • Laredo, Texas",
      "locations": [
        {
          "city": "Idaho Falls",
          "state": "Idaho"
        },
        {
          "city": "Laredo",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04028479"
    }
  ]
}