{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Experimental+Observation&page=5",
    "query": {
      "intervention": "Experimental Observation",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 170,
    "total_pages": 17,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Experimental+Observation&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Experimental+Observation&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-23T04:58:03.109Z",
  "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": "NCT01756976",
      "title": "Clinical Evaluation of the OrthoPAT Advance System",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Transmission, Blood, Recipient/Donor"
      ],
      "interventions": [
        {
          "name": "OrthoPat Advance",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Haemonetics Corporation",
      "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": 84,
      "start_date": "2012-12",
      "completion_date": "2013-08",
      "has_results": true,
      "last_update_posted_date": "2013-11-20",
      "last_synced_at": "2026-10-23T04:58:03.109Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01756976"
    },
    {
      "nct_id": "NCT07706140",
      "title": "Observational Data Collection for Blood Hemoglobin Algorithm Validation in Pediatrics",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hemoglobin",
        "Cerebral Oxygenation",
        "Congenital Heart Disease"
      ],
      "interventions": [
        {
          "name": "Noninvasive hemoglobin monitoring",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "0 Days",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "0 Days to 21 Years"
      },
      "enrollment_count": 100,
      "start_date": "2026-08",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-27",
      "last_synced_at": "2026-10-23T04:58:03.109Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07706140"
    },
    {
      "nct_id": "NCT05119023",
      "title": "Determining Learning Ability in People With Aphasia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aphasia"
      ],
      "interventions": [
        {
          "name": "SRT Observational Learning",
          "type": "BEHAVIORAL"
        },
        {
          "name": "AGL Observational Learning",
          "type": "BEHAVIORAL"
        },
        {
          "name": "AGL Rule-based Learning",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standardized cognitive-linguistic assessment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Brain imaging",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "MGH Institute of Health Professions",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 18,
      "start_date": "2022-06-06",
      "completion_date": "2023-09-01",
      "has_results": true,
      "last_update_posted_date": "2025-03-10",
      "last_synced_at": "2026-10-23T04:58:03.109Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05119023"
    },
    {
      "nct_id": "NCT05917522",
      "title": "Assessment of Biomarker-Guided CNI Substitution In Kidney Transplantation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Kidney Transplant"
      ],
      "interventions": [
        {
          "name": "Abatacept",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Standard of Care at US Transplant Centers",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 800,
      "start_date": "2023-12-07",
      "completion_date": "2029-07",
      "has_results": false,
      "last_update_posted_date": "2026-03-23",
      "last_synced_at": "2026-10-23T04:58:03.109Z",
      "location_count": 15,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • New Haven, Connecticut + 11 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05917522"
    },
    {
      "nct_id": "NCT00238459",
      "title": "Controlling Acute or Early HIV Infection With Antiretroviral Drugs, Without a Candidate Vaccine.As Reported Previously, the Candidate Vaccie Was Not Provided by the Maufacturer as Promised",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Patients elected to take licensed drugs. The vaccine was not provided for evaluation",
          "type": "DRUG"
        },
        {
          "name": "multiple licensed drugs not randomized",
          "type": "DRUG"
        },
        {
          "name": "multiple licensed antiretroviral drugs; not randomized",
          "type": "DRUG"
        },
        {
          "name": "Intended vaccine not provided, Licensed drugs provided, but were not investigated",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 58,
      "start_date": "2005-07",
      "completion_date": "2013-10",
      "has_results": false,
      "last_update_posted_date": "2013-11-20",
      "last_synced_at": "2026-10-23T04:58:03.109Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00238459"
    },
    {
      "nct_id": "NCT05255445",
      "title": "Red Blood Cell - IMProving trAnsfusions for Chronically Transfused Recipients",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sickle Cell Disease",
        "Thalassemia",
        "Pediatric Cancer"
      ],
      "interventions": [
        {
          "name": "Red Blood Cell (RBC) Transfusion",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Westat",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 157,
      "start_date": "2022-03-16",
      "completion_date": "2024-03-31",
      "has_results": false,
      "last_update_posted_date": "2024-05-17",
      "last_synced_at": "2026-10-23T04:58:03.109Z",
      "location_count": 9,
      "location_summary": "Oakland, California • San Francisco, California • Boston, Massachusetts + 2 more",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05255445"
    },
    {
      "nct_id": "NCT00617409",
      "title": "To Immunize Patients With Extensive Stage SCLC Combined With Chemo With or Without All Trans Retinoic Acid",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Small Cell Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Drug: Ad.p53-DC vaccines",
          "type": "BIOLOGICAL"
        },
        {
          "name": "All -trans Retinoic Acid (ATRA)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "H. Lee Moffitt Cancer Center and Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 69,
      "start_date": "2007-10-02",
      "completion_date": "2019-01-31",
      "has_results": true,
      "last_update_posted_date": "2019-11-08",
      "last_synced_at": "2026-10-23T04:58:03.109Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00617409"
    },
    {
      "nct_id": "NCT05568927",
      "title": "Validation of SEARCH, a Novel Hierarchical Algorithm to Define Long-term Outcomes After Pulmonary Embolism",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmonary Embolism",
        "Chronic Thromboembolic Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "SEARCH algorithm",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, 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": 150,
      "start_date": "2022-11-15",
      "completion_date": "2025-06-13",
      "has_results": false,
      "last_update_posted_date": "2025-11-04",
      "last_synced_at": "2026-10-23T04:58:03.109Z",
      "location_count": 8,
      "location_summary": "Fresno, California • Irvine, California • Los Angeles, California + 5 more",
      "locations": [
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Moreno Valley",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05568927"
    },
    {
      "nct_id": "NCT06728228",
      "title": "Amnioinfusion for Fetal Renal Failure",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Multicystic Dysplastic Kidney",
        "Polycystic Kidney Disease",
        "Fetal Renal Anomaly",
        "Anhydramnios",
        "Potter Syndrome",
        "Lung Hypoplasia",
        "Multicystic Renal Dysplasia, Bilateral",
        "Lower Urinary Tract Obstructive Syndrome",
        "Bilateral Renal Agenesis"
      ],
      "interventions": [
        {
          "name": "Amnioinfusion",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Fetal Care Center, PLLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 35,
      "start_date": "2024-12-05",
      "completion_date": "2026-11-15",
      "has_results": false,
      "last_update_posted_date": "2024-12-20",
      "last_synced_at": "2026-10-23T04:58:03.109Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06728228"
    },
    {
      "nct_id": "NCT02374671",
      "title": "A Clinical Trial of The VisAbility Micro Insert System for Presbyopic Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "VisAbility Micro Insert",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "VisDura, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "45 Years to 60 Years"
      },
      "enrollment_count": 365,
      "start_date": "2014-11-15",
      "completion_date": "2018-04-13",
      "has_results": true,
      "last_update_posted_date": "2020-01-06",
      "last_synced_at": "2026-10-23T04:58:03.109Z",
      "location_count": 14,
      "location_summary": "Orange, California • San Diego, California • Honolulu, Hawaii + 10 more",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Honolulu",
          "state": "Hawaii"
        },
        {
          "city": "Des Plaines",
          "state": "Illinois"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02374671"
    }
  ]
}