{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=MK-6552",
    "query": {
      "intervention": "MK-6552"
    },
    "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": "2026-09-06T08:35:17.063Z",
  "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": "NCT06619665",
      "title": "A Study of MK-6552 in Sleep Deprived Healthy Participants (MK-6552-003)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy",
        "Narcolepsy"
      ],
      "interventions": [
        {
          "name": "MK-6552",
          "type": "DRUG"
        },
        {
          "name": "MK-6552 placebo",
          "type": "DRUG"
        },
        {
          "name": "Modafinil",
          "type": "DRUG"
        },
        {
          "name": "Modafinil placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 18,
      "start_date": "2024-03-19",
      "completion_date": "2024-07-16",
      "has_results": false,
      "last_update_posted_date": "2024-10-01",
      "last_synced_at": "2026-09-06T08:35:17.063Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia • Eatontown, New Jersey",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Eatontown",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06619665"
    },
    {
      "nct_id": "NCT06179407",
      "title": "Study of MK-6552 in Participants With Narcolepsy Type 1 (MK-6552-004)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Narcolepsy"
      ],
      "interventions": [
        {
          "name": "MK-6552",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 9,
      "start_date": "2024-01-24",
      "completion_date": "2024-10-23",
      "has_results": true,
      "last_update_posted_date": "2026-04-14",
      "last_synced_at": "2026-09-06T08:35:17.063Z",
      "location_count": 5,
      "location_summary": "Colorado Springs, Colorado • Brandon, Florida • Atlanta, Georgia + 2 more",
      "locations": [
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        },
        {
          "city": "Brandon",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Columbia",
          "state": "South Carolina"
        },
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06179407"
    },
    {
      "nct_id": "NCT06567002",
      "title": "A Study of MK-6552 and the Effect of Food in Healthy Participants (MK-6552-006)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "MK-6552",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 24,
      "start_date": "2024-09-09",
      "completion_date": "2024-11-15",
      "has_results": false,
      "last_update_posted_date": "2024-12-04",
      "last_synced_at": "2026-09-06T08:35:17.063Z",
      "location_count": 1,
      "location_summary": "South Miami, Florida",
      "locations": [
        {
          "city": "South Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06567002"
    },
    {
      "nct_id": "NCT06665230",
      "title": "A Clinical Study of MK-6552 and Modafinil in Healthy Men (MK-6552-005)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy",
        "Narcolepsy"
      ],
      "interventions": [
        {
          "name": "MK-6552",
          "type": "DRUG"
        },
        {
          "name": "Modafinil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "MALE",
        "summary": "18 Years to 45 Years · Male only"
      },
      "enrollment_count": 12,
      "start_date": "2023-09-20",
      "completion_date": "2023-11-20",
      "has_results": false,
      "last_update_posted_date": "2024-10-30",
      "last_synced_at": "2026-09-06T08:35:17.063Z",
      "location_count": 1,
      "location_summary": "Knoxville, Tennessee",
      "locations": [
        {
          "city": "Knoxville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06665230"
    },
    {
      "nct_id": "NCT06662396",
      "title": "A Study of Diltiazem With a Single Dose of MK-6552 in Healthy Adult Participants (MK-6552-007)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "MK-6552",
          "type": "DRUG"
        },
        {
          "name": "Diltiazem",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 14,
      "start_date": "2024-06-13",
      "completion_date": "2024-09-27",
      "has_results": false,
      "last_update_posted_date": "2024-10-28",
      "last_synced_at": "2026-09-06T08:35:17.063Z",
      "location_count": 1,
      "location_summary": "Lenexa, Kansas",
      "locations": [
        {
          "city": "Lenexa",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06662396"
    }
  ]
}