{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observation+Arm&page=2",
    "query": {
      "intervention": "Observation Arm",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observation+Arm&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T00:04:21.290Z",
  "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": "NCT00005047",
      "title": "4B951, Combination Chemotherapy in Treating Patients With Bladder Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Bladder Cancer"
      ],
      "interventions": [
        {
          "name": "cisplatin",
          "type": "DRUG"
        },
        {
          "name": "doxorubicin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "methotrexate",
          "type": "DRUG"
        },
        {
          "name": "vinblastine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "SWOG Cancer Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "Up to 120 Years"
      },
      "enrollment_count": 521,
      "start_date": "1997-08",
      "completion_date": "2014-12",
      "has_results": true,
      "last_update_posted_date": "2017-06-08",
      "last_synced_at": "2026-09-05T00:04:21.290Z",
      "location_count": 73,
      "location_summary": "Glendale, Arizona • Phoenix, Arizona • Los Angeles, California + 47 more",
      "locations": [
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Greeley",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005047"
    },
    {
      "nct_id": "NCT05666778",
      "title": "Single Arm Trial of Menstrual Cups Among Economically Vulnerable Women to Reduce Bacterial Vaginosis and STIs",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Bacterial Vaginosis",
        "Vaginal Microbiome",
        "Chlamydia Trachomatis Infection",
        "Neisseria Gonorrheae Infection",
        "Trichomonas Vaginitis"
      ],
      "interventions": [
        {
          "name": "Menstrual Cup",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Rush University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "35 Years",
        "sex": "FEMALE",
        "summary": "15 Years to 35 Years · Female only"
      },
      "enrollment_count": 408,
      "start_date": "2023-02-13",
      "completion_date": "2026-08-15",
      "has_results": false,
      "last_update_posted_date": "2026-08-24",
      "last_synced_at": "2026-09-05T00:04:21.290Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05666778"
    },
    {
      "nct_id": "NCT00053352",
      "title": "Surgery and Combination Chemotherapy in Treating Children With Extracranial Germ Cell Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Childhood Embryonal Tumor",
        "Childhood Extracranial Germ Cell Tumor",
        "Childhood Extragonadal Germ Cell Tumor",
        "Childhood Malignant Ovarian Germ Cell Tumor",
        "Childhood Malignant Testicular Germ Cell Tumor",
        "Childhood Teratoma",
        "Ovarian Embryonal Carcinoma",
        "Ovarian Yolk Sac Tumor",
        "Stage II Malignant Testicular Germ Cell Tumor",
        "Stage IIA Ovarian Germ Cell Tumor",
        "Stage IIB Ovarian Germ Cell Tumor",
        "Stage IIC Ovarian Germ Cell Tumor",
        "Stage III Malignant Testicular Germ Cell Tumor",
        "Stage IIIA Ovarian Germ Cell Tumor",
        "Stage IIIB Ovarian Germ Cell Tumor",
        "Stage IIIC Ovarian Germ Cell Tumor",
        "Testicular Choriocarcinoma and Yolk Sac Tumor",
        "Testicular Embryonal Carcinoma"
      ],
      "interventions": [
        {
          "name": "conventional surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "cisplatin",
          "type": "DRUG"
        },
        {
          "name": "etoposide",
          "type": "DRUG"
        },
        {
          "name": "bleomycin sulfate",
          "type": "BIOLOGICAL"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 302,
      "start_date": "2003-11-03",
      "completion_date": "2021-06-30",
      "has_results": true,
      "last_update_posted_date": "2021-07-13",
      "last_synced_at": "2026-09-05T00:04:21.290Z",
      "location_count": 112,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 98 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Downey",
          "state": "California"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00053352"
    },
    {
      "nct_id": "NCT07038785",
      "title": "Identification of Breast Cancer in Breath Samples Using Trained Detection Dogs",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Breath test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "SpotitEarly",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 1204,
      "start_date": "2025-07-22",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-09-05T00:04:21.290Z",
      "location_count": 2,
      "location_summary": "Totowa, New Jersey • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Totowa",
          "state": "New Jersey"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07038785"
    },
    {
      "nct_id": "NCT00118066",
      "title": "Calcitriol in Preventing Prostate Cancer in Patients With Prostatic Intraepithelial Neoplasia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Precancerous/Nonmalignant Condition",
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "calcitriol",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "observation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "PROCEDURE"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "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": 12,
      "start_date": "2004-05",
      "completion_date": "2011-08",
      "has_results": false,
      "last_update_posted_date": "2015-05-27",
      "last_synced_at": "2026-09-05T00:04:21.290Z",
      "location_count": 5,
      "location_summary": "East Brunswick, New Jersey • Morristown, New Jersey • New Brunswick, New Jersey + 1 more",
      "locations": [
        {
          "city": "East Brunswick",
          "state": "New Jersey"
        },
        {
          "city": "Morristown",
          "state": "New Jersey"
        },
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        },
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        },
        {
          "city": "Summit",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00118066"
    },
    {
      "nct_id": "NCT00779246",
      "title": "Cost-Effectiveness Study Comparing Chlorhexidine Bathing With Active Surveillance Cultures to Prevent Methicillin-resistant Staphylococcus Aureus & Other Hospital Infections",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Staphylococcal Infections"
      ],
      "interventions": [
        {
          "name": "Nasal swabs for MRSA culture",
          "type": "OTHER"
        },
        {
          "name": "Chlorhexidine gluconate",
          "type": "DRUG"
        },
        {
          "name": "Contact isolation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Christiana Care Health Services",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1518,
      "start_date": "2008-06",
      "completion_date": "2009-07",
      "has_results": true,
      "last_update_posted_date": "2018-05-15",
      "last_synced_at": "2026-09-05T00:04:21.290Z",
      "location_count": 1,
      "location_summary": "Newark, Delaware",
      "locations": [
        {
          "city": "Newark",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00779246"
    },
    {
      "nct_id": "NCT00004196",
      "title": "Interferon Alfa-2b in Treating Patients With Melanoma and Early Lymph Node Metastasis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Melanoma (Skin)"
      ],
      "interventions": [
        {
          "name": "recombinant interferon alfa",
          "type": "BIOLOGICAL"
        },
        {
          "name": "lymphangiography",
          "type": "PROCEDURE"
        },
        {
          "name": "Observation",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 3000,
      "start_date": "1999-10",
      "completion_date": "2007-11",
      "has_results": false,
      "last_update_posted_date": "2014-01-20",
      "last_synced_at": "2026-09-05T00:04:21.290Z",
      "location_count": 4,
      "location_summary": "Birmingham, Alabama • Louisville, Kentucky • New Brunswick, New Jersey + 1 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00004196"
    },
    {
      "nct_id": "NCT02082470",
      "title": "Survivorship Care Planning in Improving Quality of Life in Survivors of Ovarian Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer Survivor",
        "Stage IA Ovarian Epithelial Cancer",
        "Stage IB Ovarian Epithelial Cancer",
        "Stage IC Ovarian Epithelial Cancer",
        "Stage IIA Ovarian Epithelial Cancer",
        "Stage IIB Ovarian Epithelial Cancer",
        "Stage IIC Ovarian Epithelial Cancer",
        "Stage IIIA Ovarian Epithelial Cancer",
        "Stage IIIB Ovarian Epithelial Cancer",
        "Stage IIIC Ovarian Epithelial Cancer"
      ],
      "interventions": [
        {
          "name": "follow-up care",
          "type": "OTHER"
        },
        {
          "name": "active surveillance",
          "type": "OTHER"
        },
        {
          "name": "questionnaire administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "City of Hope Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "21 Years and older · Female only"
      },
      "enrollment_count": 14,
      "start_date": "2014-04-11",
      "completion_date": "2017-09-26",
      "has_results": false,
      "last_update_posted_date": "2017-09-28",
      "last_synced_at": "2026-09-05T00:04:21.290Z",
      "location_count": 1,
      "location_summary": "Duarte, California",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02082470"
    },
    {
      "nct_id": "NCT01310699",
      "title": "Study of Flat Polyp Detection Using New Narrow Band Imaging (NBI) Compared to White Light Colonoscopy - The FIND FLAT Colonoscopy Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Colorectal Neoplasms",
        "Colonic Polyps",
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "Olympus Colonoscope CFHQ190AL",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "VA Palo Alto Health Care System",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 281,
      "start_date": "2013-01",
      "completion_date": "2016-08",
      "has_results": true,
      "last_update_posted_date": "2017-12-06",
      "last_synced_at": "2026-09-05T00:04:21.290Z",
      "location_count": 3,
      "location_summary": "Palo Alto, California • San Francisco, California • Kansas City, Missouri",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01310699"
    },
    {
      "nct_id": "NCT05307939",
      "title": "A Study on Using Cell-Free Tumor DNA (ctDNA) Testing to Decide When to StartRoutine Treatment in People With Human Papilloma Virus (HPV)- Associated Oropharynx Cancer (OPC)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HPV",
        "Oropharynx Cancer",
        "HPV-Related Carcinoma",
        "HPV-Related Malignancy",
        "HPV Positive Oropharyngeal Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "HPV ctDNA Assay",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "MRI Studies",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "EORTC QLQ H&N 35 and C30",
          "type": "BEHAVIORAL"
        },
        {
          "name": "MDADI-HN",
          "type": "BEHAVIORAL"
        },
        {
          "name": "COST-FACIT",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Intensity-Modulated Radiation Therapy (Arm A)",
          "type": "RADIATION"
        },
        {
          "name": "Chemoradiation (Arm B)",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "BEHAVIORAL",
        "RADIATION",
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2022-03-24",
      "completion_date": "2027-03-24",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-09-05T00:04:21.290Z",
      "location_count": 8,
      "location_summary": "Miami, Florida • Basking Ridge, New Jersey • Middletown, New Jersey + 5 more",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05307939"
    }
  ]
}