{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Message+Decision+Rules+%28Adaptive%29",
    "query": {
      "intervention": "Message Decision Rules (Adaptive)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 5,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-10T18:04:01.711Z",
  "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": "NCT03907683",
      "title": "Random Assignment of Intervention Messages for Developing Personalized Decision Rules to Promote Physical Activity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cardiovascular Risk Factor"
      ],
      "interventions": [
        {
          "name": "Short Message with Text and Optional Image",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "18 Years to 29 Years"
      },
      "enrollment_count": 82,
      "start_date": "2019-04-03",
      "completion_date": "2020-07-21",
      "has_results": true,
      "last_update_posted_date": "2022-11-04",
      "last_synced_at": "2026-09-10T18:04:01.711Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03907683"
    },
    {
      "nct_id": "NCT04922216",
      "title": "Adaptive Goals and Interventions for Lifestyle Enhancement",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Core",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard Diet Monitoring",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Simplified Diet Monitoring",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Adaptive Activity Goals (Daily)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Adaptive Activity Goals (Weekly)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Message Decision Points (Fixed)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Message Decision Points (Adaptive)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Message Decision Rules (Standard)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Message Decision Rules (Adaptive)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Message Choice (No)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Message Choice (Yes)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 759,
      "start_date": "2022-04-28",
      "completion_date": "2024-07-01",
      "has_results": true,
      "last_update_posted_date": "2025-07-20",
      "last_synced_at": "2026-09-10T18:04:01.711Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04922216"
    },
    {
      "nct_id": "NCT03836391",
      "title": "Precision Public Health: Enhancing Connections to Develop Just-in-Time Adaptive Intervention Strategies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Overweight and Obesity",
        "Overweight",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Nudge",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "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": 53,
      "start_date": "2019-02-12",
      "completion_date": "2019-09-16",
      "has_results": false,
      "last_update_posted_date": "2019-11-13",
      "last_synced_at": "2026-09-10T18:04:01.711Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03836391"
    },
    {
      "nct_id": "NCT02200432",
      "title": "Patient Experience Recommender System for Persuasive Communication Tailoring",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "PERSPeCT Recommender System",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 972,
      "start_date": "2014-05",
      "completion_date": "2015-06",
      "has_results": false,
      "last_update_posted_date": "2015-07-09",
      "last_synced_at": "2026-09-10T18:04:01.711Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02200432"
    },
    {
      "nct_id": "NCT04972279",
      "title": "Precision Assignment of Intervention Messages to Promote Physical Activity - Precision AIM",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Cardiovascular Risk Factor"
      ],
      "interventions": [
        {
          "name": "Digital message (text + image)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "18 Years to 29 Years"
      },
      "enrollment_count": 80,
      "start_date": "2022-01-02",
      "completion_date": "2022-12-15",
      "has_results": false,
      "last_update_posted_date": "2022-08-10",
      "last_synced_at": "2026-09-10T18:04:01.711Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04972279"
    }
  ]
}