{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Flank+Pain",
    "query": {
      "condition": "Flank Pain"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 7,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-10T17:27:27.511Z",
  "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": "NCT03691935",
      "title": "Erector Spinae Plane Block (ESPB): in Patients Undergoing Surgery Through a Flank or Anterior Subcostal Incision.",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Nephrectomy",
        "Partial Nephrectomy",
        "Incision Site Discomfort"
      ],
      "interventions": [
        {
          "name": "Ropivacaine",
          "type": "DRUG"
        },
        {
          "name": "Normal saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Milton S. Hershey Medical Center",
      "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": "2018-09-28",
      "completion_date": "2024-02-02",
      "has_results": true,
      "last_update_posted_date": "2025-02-10",
      "last_synced_at": "2026-06-10T17:27:27.511Z",
      "location_count": 1,
      "location_summary": "Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03691935"
    },
    {
      "nct_id": "NCT01352676",
      "title": "Limit Computed Tomography (CT) Scanning in Suspected Renal Colic",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Renal Colic",
        "Flank Pain",
        "Back Pain"
      ],
      "interventions": [],
      "intervention_types": [],
      "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": 635,
      "start_date": "2011-05",
      "completion_date": "2014-03",
      "has_results": false,
      "last_update_posted_date": "2020-03-06",
      "last_synced_at": "2026-06-10T17:27:27.511Z",
      "location_count": 2,
      "location_summary": "Guilford, Connecticut • New Haven, Connecticut",
      "locations": [
        {
          "city": "Guilford",
          "state": "Connecticut"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01352676"
    },
    {
      "nct_id": "NCT01538745",
      "title": "Low Dose Ketamine (LDK) Versus Morphine for Acute Pain Control in the Emergency Department",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Abdomen, Acute",
        "Other Acute Pain",
        "Flank Pain",
        "Back Pain",
        "Musculoskeletal Pain"
      ],
      "interventions": [
        {
          "name": "Ketamine",
          "type": "DRUG"
        },
        {
          "name": "Morphine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Brooke Army Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "18 Years to 59 Years"
      },
      "enrollment_count": 45,
      "start_date": "2012-02",
      "completion_date": "2013-06",
      "has_results": true,
      "last_update_posted_date": "2021-02-04",
      "last_synced_at": "2026-06-10T17:27:27.511Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01538745"
    },
    {
      "nct_id": "NCT02744430",
      "title": "Mirabegron as Medical Expulsive Therapy (MET) for Ureteral Stones and Ureteral Stent Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ureteral Obstruction",
        "Flank Pain"
      ],
      "interventions": [
        {
          "name": "Mirabegron",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Baylor College of Medicine",
      "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": 33,
      "start_date": "2017-07-22",
      "completion_date": "2019-10-31",
      "has_results": true,
      "last_update_posted_date": "2022-04-26",
      "last_synced_at": "2026-06-10T17:27:27.511Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02744430"
    },
    {
      "nct_id": "NCT01431378",
      "title": "Pilot Study of Model Based Iterative Reconstruction Using 64-Slice",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Posterior Fossa Hemorrhage",
        "Lung Cancer",
        "Flank Pain",
        "Urolithiasis",
        "Focal Hepatic Necrosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "GE Healthcare",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 92,
      "start_date": "2011-09",
      "completion_date": "2015-08",
      "has_results": false,
      "last_update_posted_date": "2015-12-11",
      "last_synced_at": "2026-06-10T17:27:27.511Z",
      "location_count": 3,
      "location_summary": "Boston, Massachusetts • Durham, North Carolina • Miwaukee, Wisconsin",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Miwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01431378"
    },
    {
      "nct_id": "NCT05776953",
      "title": "Evaluation of the Effects of Ketorolac Dose on Duration of Analgesia in Emergency Department (ED) Renal Colic Patients",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Renal Colic",
        "Flank Pain",
        "Emergencies",
        "Analgesia"
      ],
      "interventions": [
        {
          "name": "Ketorolac",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hackensack Meridian Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 86,
      "start_date": "2023-12-21",
      "completion_date": "2026-09-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-06-10T17:27:27.511Z",
      "location_count": 1,
      "location_summary": "Hackensack, New Jersey",
      "locations": [
        {
          "city": "Hackensack",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05776953"
    },
    {
      "nct_id": "NCT01679106",
      "title": "The Effects of Continuous Transversus Abdominis Plane (TAP) Catheters on Postoperative Pain After Renal Transplantation",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "TAP catheter with Ropivicaine",
          "type": "OTHER"
        },
        {
          "name": "Fentanyl IV PCA and placebo TAP catheter",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The Cleveland Clinic",
      "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": 3,
      "start_date": "2012-08",
      "completion_date": "2014-05",
      "has_results": false,
      "last_update_posted_date": "2016-05-23",
      "last_synced_at": "2026-06-10T17:27:27.511Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01679106"
    }
  ]
}