{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Large+Portion+Size",
    "query": {
      "intervention": "Large Portion Size"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 25,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Large+Portion+Size&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T17:38:07.043Z",
  "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": "NCT00436878",
      "title": "Intake Promoting Effects of Large Portions in Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Eating"
      ],
      "interventions": [
        {
          "name": "Food portion size",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Temple University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "5 Years to 6 Years"
      },
      "enrollment_count": 100,
      "start_date": "2005-10",
      "completion_date": "2011-04",
      "has_results": false,
      "last_update_posted_date": "2018-07-12",
      "last_synced_at": "2026-09-03T17:38:07.043Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania • Houston, Texas",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00436878"
    },
    {
      "nct_id": "NCT05152693",
      "title": "Effects of Variety and Portion Size on Meal Intake of Adults",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Eating Behavior"
      ],
      "interventions": [
        {
          "name": "Low variety",
          "type": "OTHER"
        },
        {
          "name": "High Variety",
          "type": "OTHER"
        },
        {
          "name": "Small Portion Size",
          "type": "OTHER"
        },
        {
          "name": "Large Portion Size",
          "type": "OTHER"
        },
        {
          "name": "With Beverage",
          "type": "OTHER"
        },
        {
          "name": "Without Beverage",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "20 Years to 65 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2022-01-20",
      "completion_date": "2023-01-27",
      "has_results": false,
      "last_update_posted_date": "2021-12-10",
      "last_synced_at": "2026-09-03T17:38:07.043Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05152693"
    },
    {
      "nct_id": "NCT06050070",
      "title": "Targeting Large-scale Networks in Depression With Real-time Functional Magnetic Resonance Imaging (fMRI) Neurofeedback",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "FMRI with sham controlled feedback",
          "type": "OTHER"
        },
        {
          "name": "FMRI with real time feedback",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 58,
      "start_date": "2024-03-18",
      "completion_date": "2026-09-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-09-03T17:38:07.043Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06050070"
    },
    {
      "nct_id": "NCT02489396",
      "title": "Promoting Healthier Food Purchases By Leveraging the Online-Grocery Environment",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Nutrition facts automatically or not automatically displayed",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nutrition facts in color",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nutrition Facts Label in Larger Font",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Healthier Items First",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Vermont",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 400,
      "start_date": "2015-08",
      "completion_date": "2019-08",
      "has_results": false,
      "last_update_posted_date": "2018-05-03",
      "last_synced_at": "2026-09-03T17:38:07.043Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02489396"
    },
    {
      "nct_id": "NCT05266183",
      "title": "Combined Effects of Simultaneous Variety and Portion Size on Meal Intake of Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Eating Behavior"
      ],
      "interventions": [
        {
          "name": "Simultaneous Variety",
          "type": "OTHER"
        },
        {
          "name": "Single-Food",
          "type": "OTHER"
        },
        {
          "name": "Small Portion",
          "type": "OTHER"
        },
        {
          "name": "Large Portion",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "20 Years to 65 Years · Female only"
      },
      "enrollment_count": 44,
      "start_date": "2022-03-07",
      "completion_date": "2022-09-21",
      "has_results": false,
      "last_update_posted_date": "2022-10-10",
      "last_synced_at": "2026-09-03T17:38:07.043Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05266183"
    },
    {
      "nct_id": "NCT04802291",
      "title": "HomeStyles-2: Shaping HOME Environments and LifeSTYLES to Prevent Childhood Obesity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy Lifestyle",
        "Home Environment Related Disease",
        "Cognitive Change",
        "Child Behavior",
        "Child Obesity",
        "Parenting",
        "Parents",
        "Parent-Child Relations"
      ],
      "interventions": [
        {
          "name": "HomeStyles-2: Obesity Prevention Program for Families with Children in Middle Childhood",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "24 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "24 Years to 50 Years"
      },
      "enrollment_count": 459,
      "start_date": "2023-05-15",
      "completion_date": "2024-07-17",
      "has_results": false,
      "last_update_posted_date": "2026-05-08",
      "last_synced_at": "2026-09-03T17:38:07.043Z",
      "location_count": 1,
      "location_summary": "New Brunswick, New Jersey",
      "locations": [
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04802291"
    },
    {
      "nct_id": "NCT01604512",
      "title": "A Comparison of MRI Perfusion and FDG PET/CT to Distinguish Between Radiation Injury and Tumor Progression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Brain Cancer"
      ],
      "interventions": [
        {
          "name": "MRI perfusion and PET/CT scans",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 148,
      "start_date": "2012-05",
      "completion_date": "2023-12-29",
      "has_results": true,
      "last_update_posted_date": "2025-04-08",
      "last_synced_at": "2026-09-03T17:38:07.043Z",
      "location_count": 6,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 3 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01604512"
    },
    {
      "nct_id": "NCT03643250",
      "title": "Effects of Varying Portion Size and Palatability on Food Intake of Preschool Children",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Feeding Behavior"
      ],
      "interventions": [
        {
          "name": "Smaller Portion Size and Standard Appeal (non-divided plate)",
          "type": "OTHER"
        },
        {
          "name": "Smaller Portion Size and Enhanced Appeal (divided plate)",
          "type": "OTHER"
        },
        {
          "name": "Larger Portion Size and Standard Appeal (non-divided plate)",
          "type": "OTHER"
        },
        {
          "name": "Larger Portion Size and Enhanced Appeal (divided plate)",
          "type": "OTHER"
        },
        {
          "name": "Smaller Portion Size and Standard Appeal (divided plate)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "3 Years to 5 Years"
      },
      "enrollment_count": 12,
      "start_date": "2019-03-12",
      "completion_date": "2019-04-17",
      "has_results": false,
      "last_update_posted_date": "2019-04-22",
      "last_synced_at": "2026-09-03T17:38:07.043Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03643250"
    },
    {
      "nct_id": "NCT03527810",
      "title": "Hiatal Interrogation in Sleeve Gastrectomy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleeve Gastrectomy"
      ],
      "interventions": [
        {
          "name": "Sleeve Gastrectomy Without Interrogation of Hiatus",
          "type": "PROCEDURE"
        },
        {
          "name": "Sleeve Gastrectomy With Interrogation of Hiatus",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Miguel Burch",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2018-09-04",
      "completion_date": "2022-03-07",
      "has_results": false,
      "last_update_posted_date": "2022-04-01",
      "last_synced_at": "2026-09-03T17:38:07.043Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03527810"
    },
    {
      "nct_id": "NCT03926065",
      "title": "Variations in Palatability and Portion Size of Vegetables on Meal Intake of Preschool Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Feeding Behavior"
      ],
      "interventions": [
        {
          "name": "Plain Vegetables Served in 100% Portion Size",
          "type": "OTHER"
        },
        {
          "name": "Plain Vegetables Served in 200% Portion Size",
          "type": "OTHER"
        },
        {
          "name": "Enhanced Vegetables Served in 100% Portion Size",
          "type": "OTHER"
        },
        {
          "name": "Enhanced Vegetables Served in 200% Portion Size",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "3 Years to 5 Years"
      },
      "enrollment_count": 67,
      "start_date": "2019-05-28",
      "completion_date": "2019-10-29",
      "has_results": true,
      "last_update_posted_date": "2020-09-25",
      "last_synced_at": "2026-09-03T17:38:07.043Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03926065"
    }
  ]
}