{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=extended+release+tacrolimus",
    "query": {
      "intervention": "extended release tacrolimus"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 35,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=extended+release+tacrolimus&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-12T20:08:49.348Z",
  "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": "NCT03762473",
      "title": "Conversion to Envarsus Post Kidney Transplant Protects Against BK Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Renal Transplant Infection"
      ],
      "interventions": [
        {
          "name": "Study Group",
          "type": "DRUG"
        },
        {
          "name": "Control Group",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 89,
      "start_date": "2019-05-09",
      "completion_date": "2022-03-16",
      "has_results": true,
      "last_update_posted_date": "2023-07-27",
      "last_synced_at": "2026-09-12T20:08:49.348Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03762473"
    },
    {
      "nct_id": "NCT04420195",
      "title": "Envarsus XR in Lung Transplant",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lung Transplant"
      ],
      "interventions": [
        {
          "name": "Extended-Release Tacrolimus",
          "type": "DRUG"
        },
        {
          "name": "Immediate-Release Tacrolimus",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 41,
      "start_date": "2020-10-23",
      "completion_date": "2022-11-30",
      "has_results": true,
      "last_update_posted_date": "2024-01-22",
      "last_synced_at": "2026-09-12T20:08:49.348Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04420195"
    },
    {
      "nct_id": "NCT01962922",
      "title": "Crossover Study to Compare PK of Once Daily LCP-Tacro Tablets to Generic Tacrolimus Capsules Twice Daily.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Renal Failure"
      ],
      "interventions": [
        {
          "name": "LCP-Tacro",
          "type": "DRUG"
        },
        {
          "name": "Tacrolimus -IR",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Veloxis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 50,
      "start_date": "2013-11",
      "completion_date": "2015-08",
      "has_results": true,
      "last_update_posted_date": "2018-06-06",
      "last_synced_at": "2026-09-12T20:08:49.348Z",
      "location_count": 3,
      "location_summary": "Chicago, Illinois • St Louis, Missouri • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01962922"
    },
    {
      "nct_id": "NCT02118896",
      "title": "Study to Ascertain if Prolonged Release Tacrolimus (FK506E - MR4) is Safe and Effective When Used in the Long Term and in Combination With Other Immunosuppressive Drugs in Patients Who Have Received a Transplant",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Heart Transplantation",
        "Liver Transplantation",
        "Kidney Transplantation"
      ],
      "interventions": [
        {
          "name": "FK506E",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Astellas Pharma Europe Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 850,
      "start_date": "2003-02-24",
      "completion_date": "2009-10-07",
      "has_results": true,
      "last_update_posted_date": "2024-11-22",
      "last_synced_at": "2026-09-12T20:08:49.348Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02118896"
    },
    {
      "nct_id": "NCT03916380",
      "title": "Drug Interaction With Envarsus XR and Grapefruit Juice",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Kidney Transplant; Complications",
        "Drug Interaction Food"
      ],
      "interventions": [
        {
          "name": "Grapefruit Juice",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Shirley M. Tsunoda",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2019-10-25",
      "completion_date": "2023-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-04-09",
      "last_synced_at": "2026-09-12T20:08:49.348Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03916380"
    },
    {
      "nct_id": "NCT03410654",
      "title": "Assessment of Cognitive Function Before and After Conversion From Immediate Release Tacrolimus to Envarsus XR.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Kidney Transplant; Complications"
      ],
      "interventions": [
        {
          "name": "Tacrolimus, Extended Release, (Envarsus Xr)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2018-10-24",
      "completion_date": "2024-07-01",
      "has_results": false,
      "last_update_posted_date": "2024-08-21",
      "last_synced_at": "2026-09-12T20:08:49.348Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03410654"
    },
    {
      "nct_id": "NCT03760263",
      "title": "Evaluation Dose Adjustments in Kidney Transplant Patients on Immediate Release and Extended Release Tacrolimus",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Transplant;Failure,Kidney"
      ],
      "interventions": [
        {
          "name": "Tacrolimus",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sentara Norfolk General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 46,
      "start_date": "2020-01-16",
      "completion_date": "2023-11-01",
      "has_results": false,
      "last_update_posted_date": "2024-02-29",
      "last_synced_at": "2026-09-12T20:08:49.348Z",
      "location_count": 1,
      "location_summary": "Norfolk, Virginia",
      "locations": [
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03760263"
    },
    {
      "nct_id": "NCT04773392",
      "title": "Simplified IMmunosuppressive Protocol Utilizing Low Dose EnvarsusXR",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Kidney Transplantation",
        "Kidney Transplant Rejection"
      ],
      "interventions": [
        {
          "name": "Twice-daily Tacrolimus",
          "type": "DRUG"
        },
        {
          "name": "Once-daily envarsus XR",
          "type": "DRUG"
        },
        {
          "name": "Induction Immunosuppression with Basiliximab or Rabbit Anti Thymoglobulin (rATG)",
          "type": "DRUG"
        },
        {
          "name": "Methylprednisolone, prednisone",
          "type": "DRUG"
        },
        {
          "name": "Mycophenolate mofetil (MMF) or Mycophenolic acid (MPA)",
          "type": "DRUG"
        },
        {
          "name": "Azathioprine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 20,
      "start_date": "2021-11-23",
      "completion_date": "2024-02-23",
      "has_results": false,
      "last_update_posted_date": "2025-11-10",
      "last_synced_at": "2026-09-12T20:08:49.348Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04773392"
    },
    {
      "nct_id": "NCT03828058",
      "title": "Envarsus XL Immunosuppression Following Liver Transplantation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Recipients of Liver Transplant"
      ],
      "interventions": [
        {
          "name": "Envarsus XR",
          "type": "DRUG"
        },
        {
          "name": "Prograf",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Methodist Healthcare - Memphis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 110,
      "start_date": "2019-04-01",
      "completion_date": "2020-12-31",
      "has_results": false,
      "last_update_posted_date": "2021-01-12",
      "last_synced_at": "2026-09-12T20:08:49.348Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03828058"
    },
    {
      "nct_id": "NCT03841097",
      "title": "Pulse Wave Velocity, Tacrolimus Time in Therapeutic Range and CV in African American Kidney Transplants",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Kidney Transplant; Complications"
      ],
      "interventions": [
        {
          "name": "Extended Release Tacrolimus Tablets",
          "type": "DRUG"
        },
        {
          "name": "Immediate Release Tacrolimus Capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Roy D. Bloom, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 60,
      "start_date": "2019-11-11",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-17",
      "last_synced_at": "2026-09-12T20:08:49.348Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03841097"
    }
  ]
}