{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Apple+Watch+Series+1",
    "query": {
      "intervention": "Apple Watch Series 1"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 4,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-13T20:46:48.236Z",
  "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": "NCT03426280",
      "title": "Activity Therapy After Kidney Transplant",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Transplant; Complications"
      ],
      "interventions": [
        {
          "name": "Apple Watch Series 1",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 13,
      "start_date": "2018-05-01",
      "completion_date": "2020-01-31",
      "has_results": false,
      "last_update_posted_date": "2023-06-27",
      "last_synced_at": "2026-09-13T20:46:48.236Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03426280"
    },
    {
      "nct_id": "NCT03612063",
      "title": "Accuracy of Commercially Available Heart Rate Monitors in Athletes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Rate Monitors",
        "Athletes Heart"
      ],
      "interventions": [
        {
          "name": "Fitbit Iconic HR and Garmin Vivosmart HR",
          "type": "DEVICE"
        },
        {
          "name": "Fitbit Iconic HR and TomTom Spark 3",
          "type": "DEVICE"
        },
        {
          "name": "Garmin Vivosmart HR and TomTom Spark 3",
          "type": "DEVICE"
        },
        {
          "name": "Fitbit Iconic HR and Apple Watch III",
          "type": "DEVICE"
        },
        {
          "name": "Apple Watch III and Garmin Vivosmart HR",
          "type": "DEVICE"
        },
        {
          "name": "Apple Watch III and TomTom Spark 3",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2018-07-24",
      "completion_date": "2018-12-13",
      "has_results": false,
      "last_update_posted_date": "2019-04-10",
      "last_synced_at": "2026-09-13T20:46:48.236Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03612063"
    },
    {
      "nct_id": "NCT03939572",
      "title": "Effects of Physical Activity Adequacy Mindsets on Health and Wellbeing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Activity Adequacy Mindsets"
      ],
      "interventions": [
        {
          "name": "Accurate step count feedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Deflated step count feedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Inflated step count feedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Accurate feedback + mindset intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 164,
      "start_date": "2018-05-30",
      "completion_date": "2019-11-15",
      "has_results": false,
      "last_update_posted_date": "2020-01-30",
      "last_synced_at": "2026-09-13T20:46:48.236Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03939572"
    },
    {
      "nct_id": "NCT04267588",
      "title": "Using Technology to Track Pain and Pain-related Outcomes",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pain, Chronic"
      ],
      "interventions": [
        {
          "name": "Navio Mobile App",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2020-08-10",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-13",
      "last_synced_at": "2026-09-13T20:46:48.236Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04267588"
    }
  ]
}