{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Very+Low+Calorie+Diet",
    "query": {
      "intervention": "Very Low Calorie Diet"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 46,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Very+Low+Calorie+Diet&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-12T09:07:51.761Z",
  "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": "NCT02251574",
      "title": "Effect of a Very Low Calorie and Low Calorie Diet on Moderate to Severe Obstructive Sleep Apnea in Obese Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obstructive Sleep Apnea"
      ],
      "interventions": [
        {
          "name": "Low Calorie Diet",
          "type": "OTHER"
        },
        {
          "name": "Very Low Calorie Diet",
          "type": "OTHER"
        },
        {
          "name": "Standard Care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 37,
      "start_date": "2014-09",
      "completion_date": "2016-06",
      "has_results": false,
      "last_update_posted_date": "2018-04-05",
      "last_synced_at": "2026-09-12T09:07:51.761Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02251574"
    },
    {
      "nct_id": "NCT02372136",
      "title": "Optimizing Individual Nutrition in Preterm Very Low Birth Weight Infants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Infant, Premature, Diseases",
        "Infant, Small for Gestational Age"
      ],
      "interventions": [
        {
          "name": "Individualized Nutrition",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Optimized nutrition",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "7 Days",
        "sex": "ALL",
        "summary": "Up to 7 Days"
      },
      "enrollment_count": 120,
      "start_date": "2016-01",
      "completion_date": "2023-12-31",
      "has_results": true,
      "last_update_posted_date": "2024-07-03",
      "last_synced_at": "2026-09-12T09:07:51.761Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02372136"
    },
    {
      "nct_id": "NCT04350892",
      "title": "Cerebrospinal Fluid Biomarkers in Bariatric Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Roux-en-Y Gastric Bypass (RYGB)",
          "type": "PROCEDURE"
        },
        {
          "name": "Sleeve Gastrectomy (SG)",
          "type": "PROCEDURE"
        },
        {
          "name": "Very Low Calorie Diet (VLCD)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 51,
      "start_date": "2020-10-20",
      "completion_date": "2025-12-29",
      "has_results": false,
      "last_update_posted_date": "2026-01-28",
      "last_synced_at": "2026-09-12T09:07:51.761Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04350892"
    },
    {
      "nct_id": "NCT02706262",
      "title": "Complex Effects of Dietary Manipulation on Metabolic Function, Inflammation and Health",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Insulin Resistance"
      ],
      "interventions": [
        {
          "name": "Metabolically abnormal obese - Mediterranean diet",
          "type": "OTHER"
        },
        {
          "name": "Metabolically abnormal obese - Low carbohydrate ketogenic diet",
          "type": "OTHER"
        },
        {
          "name": "Metabolically abnormal obese - Plant-based, very-low-fat diet",
          "type": "OTHER"
        },
        {
          "name": "Annual Follow-up Visits",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 180,
      "start_date": "2016-02",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-01-27",
      "last_synced_at": "2026-09-12T09:07:51.761Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02706262"
    },
    {
      "nct_id": "NCT06363747",
      "title": "The Medically Reproducing Bariatric Surgery (MRB) II Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Type 2 Diabetes",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Very Low Calorie Diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Durham VA Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "25 Years to 75 Years"
      },
      "enrollment_count": 50,
      "start_date": "2024-06-24",
      "completion_date": "2025-11-03",
      "has_results": false,
      "last_update_posted_date": "2025-02-07",
      "last_synced_at": "2026-09-12T09:07:51.761Z",
      "location_count": 1,
      "location_summary": "Greenville, North Carolina",
      "locations": [
        {
          "city": "Greenville",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06363747"
    },
    {
      "nct_id": "NCT04082884",
      "title": "Very Low Carbohydrate Diet as an Adjunctive Therapy for Youth Type 1 Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 1 Diabetes"
      ],
      "interventions": [
        {
          "name": "Very Low Carbohydrate Diet",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "13 Years to 25 Years"
      },
      "enrollment_count": 6,
      "start_date": "2020-06-25",
      "completion_date": "2022-02-20",
      "has_results": true,
      "last_update_posted_date": "2024-02-15",
      "last_synced_at": "2026-09-12T09:07:51.761Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04082884"
    },
    {
      "nct_id": "NCT06183034",
      "title": "Acceptability and Feasibility of a Preoperative Very Low Calorie Diet Intervention on Surgical Weight Loss Outcomes (SAFETY)",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Very Low Calorie Diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Hartford Hospital",
      "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": 30,
      "start_date": "2024-03-05",
      "completion_date": "2025-12-30",
      "has_results": false,
      "last_update_posted_date": "2024-02-28",
      "last_synced_at": "2026-09-12T09:07:51.761Z",
      "location_count": 1,
      "location_summary": "Hartford, Connecticut",
      "locations": [
        {
          "city": "Hartford",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06183034"
    },
    {
      "nct_id": "NCT02780206",
      "title": "Very Low Calorie Diet Weight Loss",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Very Low Calorie Diet"
      ],
      "interventions": [
        {
          "name": "Stable isotope amino acid infusion",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Texas A&M University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 56,
      "start_date": "2016-05",
      "completion_date": "2018-10",
      "has_results": false,
      "last_update_posted_date": "2022-02-04",
      "last_synced_at": "2026-09-12T09:07:51.761Z",
      "location_count": 1,
      "location_summary": "College Station, Texas",
      "locations": [
        {
          "city": "College Station",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02780206"
    },
    {
      "nct_id": "NCT04861571",
      "title": "Effect of VLCD on the Reduction of Liver Steatosis and Fibrosis in Subjects With Obesity and NAFLD",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "NAFLD"
      ],
      "interventions": [
        {
          "name": "Dietary intervention with very low calorie diet (VLCD)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Control Arm",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Iowa",
      "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": 20,
      "start_date": "2023-10-01",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-10",
      "last_synced_at": "2026-09-12T09:07:51.761Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04861571"
    },
    {
      "nct_id": "NCT05564624",
      "title": "Effect of Fasting-Mimicking Diet on Skin Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Skin"
      ],
      "interventions": [
        {
          "name": "Fasting mimicking diet (FMD)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "L-Nutra Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "35 Years to 60 Years · Female only"
      },
      "enrollment_count": 45,
      "start_date": "2022-01-06",
      "completion_date": "2022-12-01",
      "has_results": false,
      "last_update_posted_date": "2023-10-26",
      "last_synced_at": "2026-09-12T09:07:51.761Z",
      "location_count": 1,
      "location_summary": "Richardson, Texas",
      "locations": [
        {
          "city": "Richardson",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05564624"
    }
  ]
}