{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Portion+Sizes&page=2",
    "query": {
      "condition": "Portion Sizes",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Portion+Sizes&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-10T03:48:23.480Z",
  "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": "NCT04494971",
      "title": "The PortionSize Smartphone App Pilot (PS Pilot)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dietary Habits"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Pennington Biomedical Research Center",
      "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": 15,
      "start_date": "2020-08-31",
      "completion_date": "2020-11-20",
      "has_results": true,
      "last_update_posted_date": "2024-11-19",
      "last_synced_at": "2026-09-10T03:48:23.480Z",
      "location_count": 1,
      "location_summary": "Baton Rouge, Louisiana",
      "locations": [
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04494971"
    },
    {
      "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": "2026-09-10T03:48:23.480Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03643250"
    },
    {
      "nct_id": "NCT03341247",
      "title": "Brain Mechanisms of Overeating in Children",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pediatric Obesity",
        "Inhibition",
        "Decision Making",
        "fMRI"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "8 Years",
        "sex": "ALL",
        "summary": "7 Years to 8 Years"
      },
      "enrollment_count": 254,
      "start_date": "2018-01-31",
      "completion_date": "2023-06-20",
      "has_results": false,
      "last_update_posted_date": "2024-01-03",
      "last_synced_at": "2026-09-10T03:48:23.480Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03341247"
    },
    {
      "nct_id": "NCT03338634",
      "title": "Pilot Testing of Food Images in Children",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Childhood Obesity",
        "fMRI"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "10 Years",
        "sex": "ALL",
        "summary": "6 Years to 10 Years"
      },
      "enrollment_count": 400,
      "start_date": "2017-10-09",
      "completion_date": "2023-07",
      "has_results": false,
      "last_update_posted_date": "2022-04-05",
      "last_synced_at": "2026-09-10T03:48:23.480Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03338634"
    },
    {
      "nct_id": "NCT03409601",
      "title": "The Role of Satiety in the Effect of Portion Size on Intake",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Feeding Behavior"
      ],
      "interventions": [
        {
          "name": "100% Portion Size",
          "type": "OTHER"
        },
        {
          "name": "125% Portion Size",
          "type": "OTHER"
        },
        {
          "name": "150% Portion Size",
          "type": "OTHER"
        },
        {
          "name": "175% Portion Size",
          "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": "ALL",
        "summary": "20 Years to 65 Years"
      },
      "enrollment_count": 14,
      "start_date": "2018-04-02",
      "completion_date": "2018-12-14",
      "has_results": false,
      "last_update_posted_date": "2019-03-18",
      "last_synced_at": "2026-09-10T03:48:23.480Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03409601"
    },
    {
      "nct_id": "NCT02755558",
      "title": "Effects of Energy Density and Portion Size of Milk in Preschool Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Feeding Behaviors"
      ],
      "interventions": [
        {
          "name": "Low energy density",
          "type": "BEHAVIORAL"
        },
        {
          "name": "High energy density",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Small portion",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Large portion",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "3 Years to 6 Years"
      },
      "enrollment_count": 143,
      "start_date": "2014-09",
      "completion_date": "2015-05",
      "has_results": false,
      "last_update_posted_date": "2017-03-21",
      "last_synced_at": "2026-09-10T03:48:23.480Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02755558"
    },
    {
      "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": "2026-09-10T03:48:23.480Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05266183"
    },
    {
      "nct_id": "NCT01474759",
      "title": "Portion Size Strategies for Management of Body Weight",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Advice on diet, physical activity, and behavior change",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Instruction in food portion size",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Provision of pre-portioned foods",
          "type": "OTHER"
        },
        {
          "name": "Advice on healthy eating for weight loss",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "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": 186,
      "start_date": "2012-07",
      "completion_date": "2015-03",
      "has_results": false,
      "last_update_posted_date": "2015-05-15",
      "last_synced_at": "2026-09-10T03:48:23.480Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01474759"
    },
    {
      "nct_id": "NCT01725425",
      "title": "The Effect of Portion Sizes on Mood",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Mood",
        "Eating Patterns"
      ],
      "interventions": [
        {
          "name": "Control",
          "type": "OTHER"
        },
        {
          "name": "Increase Portion Size",
          "type": "OTHER"
        },
        {
          "name": "Decrease Portion Size",
          "type": "OTHER"
        },
        {
          "name": "Mixed Portions",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The University of Tennessee, Knoxville",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 25,
      "start_date": "2012-10",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-04-03",
      "last_synced_at": "2026-09-10T03:48:23.480Z",
      "location_count": 1,
      "location_summary": "Knoxville, Tennessee",
      "locations": [
        {
          "city": "Knoxville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01725425"
    },
    {
      "nct_id": "NCT02369588",
      "title": "Effects of Portion Size of Multiple Items at a Meal on Food Intake of Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Feeding Behaviors"
      ],
      "interventions": [
        {
          "name": "Food portion size",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "20 Years to 45 Years · Female only"
      },
      "enrollment_count": 51,
      "start_date": "2013-03",
      "completion_date": "2013-12",
      "has_results": false,
      "last_update_posted_date": "2015-02-24",
      "last_synced_at": "2026-09-10T03:48:23.480Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02369588"
    }
  ]
}