{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Weight+loss+surgery",
    "query": {
      "intervention": "Weight loss surgery"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 565,
    "total_pages": 57,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Weight+loss+surgery&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-15T06:57:23.647Z",
  "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": "NCT03540693",
      "title": "Fat Taste Sensory Study",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Bariatric Surgery Candidate",
        "Bariatric Surgical Procedure"
      ],
      "interventions": [
        {
          "name": "RYGB",
          "type": "PROCEDURE"
        },
        {
          "name": "SG",
          "type": "PROCEDURE"
        },
        {
          "name": "LAGB",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Illinois at Urbana-Champaign",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 105,
      "start_date": "2018-04-06",
      "completion_date": "2023-07-06",
      "has_results": false,
      "last_update_posted_date": "2021-04-28",
      "last_synced_at": "2026-09-15T06:57:23.647Z",
      "location_count": 1,
      "location_summary": "Urbana, Illinois",
      "locations": [
        {
          "city": "Urbana",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03540693"
    },
    {
      "nct_id": "NCT00169793",
      "title": "Nephrolithiasis and Bariatric Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Nephrolithiasis"
      ],
      "interventions": [
        {
          "name": "evaluation of kidney stone risk after bariatric surgery",
          "type": "OTHER"
        },
        {
          "name": "Evaluate risk of kidney stones after bariatric surgery",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Indiana Kidney Stone Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 89,
      "start_date": "2005-08",
      "completion_date": "2012-12",
      "has_results": false,
      "last_update_posted_date": "2014-03-05",
      "last_synced_at": "2026-09-15T06:57:23.647Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00169793"
    },
    {
      "nct_id": "NCT01600638",
      "title": "Non-Invasive Reduction of Fat in the Flanks of Patients With Sharp Body Curvature",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Body Fat Disorder"
      ],
      "interventions": [
        {
          "name": "The Zeltiq System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Zeltiq Aesthetics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 25,
      "start_date": "2012-03-29",
      "completion_date": "2013-09-30",
      "has_results": true,
      "last_update_posted_date": "2020-10-26",
      "last_synced_at": "2026-09-15T06:57:23.647Z",
      "location_count": 1,
      "location_summary": "Pleasanton, California",
      "locations": [
        {
          "city": "Pleasanton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01600638"
    },
    {
      "nct_id": "NCT00627484",
      "title": "Changes in Insulin Sensitivity After Weight Loss",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity",
        "Type 2 Diabetes Mellitus",
        "Insulin Resistance"
      ],
      "interventions": [
        {
          "name": "Gastric bypass",
          "type": "PROCEDURE"
        },
        {
          "name": "Gastric banding",
          "type": "PROCEDURE"
        },
        {
          "name": "Sleeve gastrectomy",
          "type": "PROCEDURE"
        },
        {
          "name": "Very low calorie diet",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 119,
      "start_date": "2005-03-01",
      "completion_date": "2018-06-17",
      "has_results": false,
      "last_update_posted_date": "2019-09-19",
      "last_synced_at": "2026-09-15T06:57:23.647Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00627484"
    },
    {
      "nct_id": "NCT05903521",
      "title": "BAriatric Surgery Induced Chromosomal Change",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity, Morbid"
      ],
      "interventions": [],
      "intervention_types": [],
      "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": 120,
      "start_date": "2023-06-12",
      "completion_date": "2025-01-20",
      "has_results": false,
      "last_update_posted_date": "2025-10-24",
      "last_synced_at": "2026-09-15T06:57:23.647Z",
      "location_count": 1,
      "location_summary": "Weston, Florida",
      "locations": [
        {
          "city": "Weston",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05903521"
    },
    {
      "nct_id": "NCT03063463",
      "title": "Mechanisms of Weight Loss in Patients Diagnosed With Achalasia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Achalasia"
      ],
      "interventions": [
        {
          "name": "pneumatic dilation",
          "type": "PROCEDURE"
        },
        {
          "name": "surgical myotomy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "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": 7,
      "start_date": "2017-02-15",
      "completion_date": "2023-09-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-27",
      "last_synced_at": "2026-09-15T06:57:23.647Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03063463"
    },
    {
      "nct_id": "NCT05853497",
      "title": "A Multi-Component Weight Loss Intervention to Improve Outcomes of Total Knee Replacement",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Arthropathy of Knee",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Multi-Component Weight Loss Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "50 Years to 75 Years"
      },
      "enrollment_count": 24,
      "start_date": "2023-05-01",
      "completion_date": "2025-09-09",
      "has_results": false,
      "last_update_posted_date": "2025-09-17",
      "last_synced_at": "2026-09-15T06:57:23.647Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05853497"
    },
    {
      "nct_id": "NCT00675558",
      "title": "Bariatric Surgery for Morbid Obesity",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity",
        "Morbid Obesity"
      ],
      "interventions": [
        {
          "name": "Initial Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Second Bariatric Surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Columbia University",
      "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": 50,
      "start_date": "2006-11",
      "completion_date": "2012-03",
      "has_results": true,
      "last_update_posted_date": "2013-07-26",
      "last_synced_at": "2026-09-15T06:57:23.647Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00675558"
    },
    {
      "nct_id": "NCT06425016",
      "title": "Effects of Assisted Robotic vs Laparoscopic Sleeve Gastrectomy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Post Operative Pain",
        "Laparoscopic Sleeve Gastrectomy",
        "Robotic Sleeve Gastrectomy",
        "Obesity",
        "Bariatric Surgery Candidate",
        "Quality of Life"
      ],
      "interventions": [
        {
          "name": "Laparoscopic Sleeve Gastrectomy (LSG)",
          "type": "PROCEDURE"
        },
        {
          "name": "Robotic Sleeve Gastrectomy (RSG)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Ricard Corcelles",
      "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": 91,
      "start_date": "2024-07-17",
      "completion_date": "2027-04-30",
      "has_results": false,
      "last_update_posted_date": "2025-12-10",
      "last_synced_at": "2026-09-15T06:57:23.647Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06425016"
    },
    {
      "nct_id": "NCT03065426",
      "title": "Microbiome and Bariatric Surgery",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Weight Change, Body"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "North Dakota State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 144,
      "start_date": "2017-05-11",
      "completion_date": "2021-09",
      "has_results": false,
      "last_update_posted_date": "2017-05-16",
      "last_synced_at": "2026-09-15T06:57:23.647Z",
      "location_count": 2,
      "location_summary": "Fargo, North Dakota • Cleveland, Ohio",
      "locations": [
        {
          "city": "Fargo",
          "state": "North Dakota"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03065426"
    }
  ]
}