{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Letter+Group-+Information+Provided&page=2",
    "query": {
      "intervention": "Letter Group- Information Provided",
      "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=Letter+Group-+Information+Provided&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T21:46:27.730Z",
  "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": "NCT00689013",
      "title": "The Effect of Pharmacist Intervention on the Use of Zostavax in a Community Pharmacy Setting",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Herpes Zoster"
      ],
      "interventions": [
        {
          "name": "Personalized letter",
          "type": "OTHER"
        },
        {
          "name": "Flyer advertisement",
          "type": "OTHER"
        },
        {
          "name": "Newspaper press release",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Tennessee",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 205,
      "start_date": "2008-02",
      "completion_date": "2008-03",
      "has_results": false,
      "last_update_posted_date": "2009-04-23",
      "last_synced_at": "2026-09-25T21:46:27.730Z",
      "location_count": 3,
      "location_summary": "Johnson City, Tennessee • Manchester, Tennessee • Murfreesboro, Tennessee",
      "locations": [
        {
          "city": "Johnson City",
          "state": "Tennessee"
        },
        {
          "city": "Manchester",
          "state": "Tennessee"
        },
        {
          "city": "Murfreesboro",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00689013"
    },
    {
      "nct_id": "NCT02225028",
      "title": "Feasibility of Telephone Counseling to Increase Physical Fitness in SCI",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Cord Injury"
      ],
      "interventions": [
        {
          "name": "Physical Activity Counseling",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Washington",
      "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": 15,
      "start_date": "2014-11",
      "completion_date": "2016-09",
      "has_results": false,
      "last_update_posted_date": "2017-05-05",
      "last_synced_at": "2026-09-25T21:46:27.730Z",
      "location_count": 2,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02225028"
    },
    {
      "nct_id": "NCT03147716",
      "title": "Parent Engagement Package: Comparing Strategies for Engaging Parents Into Parenting Programs",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Patient Compliance"
      ],
      "interventions": [
        {
          "name": "Enrollment Flyer",
          "type": "OTHER"
        },
        {
          "name": "Testimonial Booklet",
          "type": "OTHER"
        },
        {
          "name": "Teacher Endorsement",
          "type": "OTHER"
        },
        {
          "name": "Provider Engagement Call",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Arizona State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 854,
      "start_date": "2013-10",
      "completion_date": "2017-06",
      "has_results": false,
      "last_update_posted_date": "2019-08-09",
      "last_synced_at": "2026-09-25T21:46:27.730Z",
      "location_count": 1,
      "location_summary": "Tempe, Arizona",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03147716"
    },
    {
      "nct_id": "NCT01833026",
      "title": "COPD Assessment and Management Bundle Versus Usual Care",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "Spirometry test",
          "type": "DEVICE"
        },
        {
          "name": "Levalbuterol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "University of Illinois at Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 56,
      "start_date": "2013-03",
      "completion_date": "2016-05",
      "has_results": true,
      "last_update_posted_date": "2019-12-24",
      "last_synced_at": "2026-09-25T21:46:27.730Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01833026"
    },
    {
      "nct_id": "NCT02790476",
      "title": "Behavioral Insights to Encourage Judicious Prescribing of Opioids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Substance-Related Disorders"
      ],
      "interventions": [
        {
          "name": "Letters",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 851,
      "start_date": "2017-01-27",
      "completion_date": "2018-02-27",
      "has_results": true,
      "last_update_posted_date": "2024-04-29",
      "last_synced_at": "2026-09-25T21:46:27.730Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02790476"
    },
    {
      "nct_id": "NCT00810771",
      "title": "Evaluating a Preference-based Intervention for Increasing Colorectal Cancer Screening",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Colorectal Neoplasms"
      ],
      "interventions": [
        {
          "name": "Standard Information",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Preference-tailored Information",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "US Department of Veterans Affairs",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "78 Years",
        "sex": "ALL",
        "summary": "50 Years to 78 Years"
      },
      "enrollment_count": 466,
      "start_date": "2009-02",
      "completion_date": "2012-08",
      "has_results": true,
      "last_update_posted_date": "2015-06-02",
      "last_synced_at": "2026-09-25T21:46:27.730Z",
      "location_count": 2,
      "location_summary": "Ann Arbor, Michigan • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00810771"
    },
    {
      "nct_id": "NCT02245321",
      "title": "Strategies to Reduce Iron Deficiency",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Iron Deficiency"
      ],
      "interventions": [
        {
          "name": "Ferrous gluconate- 19 mg",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Ferrous gluconate- 38 mg",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Letter Group- Information Provided",
          "type": "OTHER"
        },
        {
          "name": "Letter - No Information Provided",
          "type": "OTHER"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Westat",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 702,
      "start_date": "2011-06",
      "completion_date": "2014-06",
      "has_results": false,
      "last_update_posted_date": "2023-12-06",
      "last_synced_at": "2026-09-25T21:46:27.730Z",
      "location_count": 4,
      "location_summary": "Farmington, Connecticut • Rockville, Maryland • Pittsburgh, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        },
        {
          "city": "Rockville",
          "state": "Maryland"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02245321"
    },
    {
      "nct_id": "NCT04658888",
      "title": "St. Joe's Invitation Effectiveness Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cervical Cancer Screening"
      ],
      "interventions": [
        {
          "name": "Evalyn Self-Sampling Brush",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Milton S. Hershey Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "30 Years to 65 Years · Female only"
      },
      "enrollment_count": 964,
      "start_date": "2021-04-26",
      "completion_date": "2022-02-01",
      "has_results": true,
      "last_update_posted_date": "2022-07-06",
      "last_synced_at": "2026-09-25T21:46:27.730Z",
      "location_count": 1,
      "location_summary": "Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04658888"
    },
    {
      "nct_id": "NCT00760552",
      "title": "Trial of Low and High Intensity Strategies to Maintain BP Control",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "High Intensity Intervention",
          "type": "OTHER"
        },
        {
          "name": "Low Intensity Intervention",
          "type": "OTHER"
        },
        {
          "name": "All- 6 month pharmacist intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "US Department of Veterans Affairs",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 249,
      "start_date": "2009-11",
      "completion_date": "2013-12",
      "has_results": true,
      "last_update_posted_date": "2015-04-27",
      "last_synced_at": "2026-09-25T21:46:27.730Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00760552"
    },
    {
      "nct_id": "NCT04111887",
      "title": "Pilot Study Comparing Two Versions of Group Cognitive-behavioral Indicated Prevention Programs",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depressive Symptoms"
      ],
      "interventions": [
        {
          "name": "Group-based therapy",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Oregon Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "28 Years",
        "sex": "ALL",
        "summary": "18 Years to 28 Years"
      },
      "enrollment_count": 91,
      "start_date": "2017-10-10",
      "completion_date": "2018-12-13",
      "has_results": false,
      "last_update_posted_date": "2020-09-16",
      "last_synced_at": "2026-09-25T21:46:27.730Z",
      "location_count": 1,
      "location_summary": "Eugene, Oregon",
      "locations": [
        {
          "city": "Eugene",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04111887"
    }
  ]
}