{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=PR-1+vaccine",
    "query": {
      "intervention": "PR-1 vaccine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 7,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-15T03:43:11.671Z",
  "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": "NCT00893997",
      "title": "PR1 Vaccination in Myelodysplastic Syndrome (MDS)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leukemia",
        "Myelodysplastic Syndrome"
      ],
      "interventions": [
        {
          "name": "PR-1 vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "M.D. Anderson 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": 12,
      "start_date": "2006-07",
      "completion_date": "2009-03",
      "has_results": true,
      "last_update_posted_date": "2012-07-16",
      "last_synced_at": "2026-09-15T03:43:11.671Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00893997"
    },
    {
      "nct_id": "NCT00488592",
      "title": "Peptide Vaccinations to Treat Patients With Low-Risk Myeloid Cancers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Myelodysplastic Syndrome (MDS)",
        "Acute Myeloid Leukemia (AML)",
        "Chronic Myeloid Leukemia (CML)"
      ],
      "interventions": [
        {
          "name": "WT1:126-134",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PR1:169-177 Peptide",
          "type": "BIOLOGICAL"
        },
        {
          "name": "GM-CSF (Sargramostim)",
          "type": "DRUG"
        },
        {
          "name": "Montanide adjuvant",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 10,
      "start_date": "2007-06",
      "completion_date": "2010-04",
      "has_results": true,
      "last_update_posted_date": "2021-07-12",
      "last_synced_at": "2026-09-15T03:43:11.671Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00488592"
    },
    {
      "nct_id": "NCT00415857",
      "title": "Proteinase 3 PR1 Peptide Mixed With Montanide ISA-51 VG Adjuvant and Administered With GM-CSF and PEG-INTRON(R)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leukemia"
      ],
      "interventions": [
        {
          "name": "Peptide Vaccine (PR1 Peptide)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Peginterferon alfa-2b",
          "type": "DRUG"
        },
        {
          "name": "Imatinib",
          "type": "DRUG"
        },
        {
          "name": "GM-CSF",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "M.D. Anderson 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": 5,
      "start_date": "2006-12",
      "completion_date": "2013-09",
      "has_results": true,
      "last_update_posted_date": "2018-08-21",
      "last_synced_at": "2026-09-15T03:43:11.671Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00415857"
    },
    {
      "nct_id": "NCT00513578",
      "title": "Vaccine Therapy and GM-CSF in Treating Patients With Low-Risk or Intermediate-Risk Myelodysplastic Syndrome",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Myelodysplastic Syndromes"
      ],
      "interventions": [
        {
          "name": "PR1 leukemia peptide vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "incomplete Freund's adjuvant",
          "type": "BIOLOGICAL"
        },
        {
          "name": "sargramostim",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "The Vaccine Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2007-01",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2014-01-06",
      "last_synced_at": "2026-09-15T03:43:11.671Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00513578"
    },
    {
      "nct_id": "NCT00004918",
      "title": "Vaccine Therapy Plus Immune Adjuvant in Treating Patients With Chronic Myeloid Leukemia, Acute Myeloid Leukemia, or Myelodysplastic Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Accelerated Phase Chronic Myelogenous Leukemia",
        "Adult Acute Myeloid Leukemia in Remission",
        "Chronic Phase Chronic Myelogenous Leukemia",
        "Previously Treated Myelodysplastic Syndromes",
        "Refractory Anemia With Excess Blasts",
        "Refractory Anemia With Excess Blasts in Transformation",
        "Relapsing Chronic Myelogenous Leukemia"
      ],
      "interventions": [
        {
          "name": "PR1 leukemia peptide vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Montanide ISA 51 VG",
          "type": "DRUG"
        },
        {
          "name": "sargramostim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 69,
      "start_date": "1999-12",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-01-07",
      "last_synced_at": "2026-09-15T03:43:11.671Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00004918"
    },
    {
      "nct_id": "NCT00270452",
      "title": "Safety of Peptide Vaccination for Patients With Myelodysplastic Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Myelodysplastic Syndrome (MDS)"
      ],
      "interventions": [
        {
          "name": "WT1 and PR1 Peptide Vaccine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 9,
      "start_date": "2005-12-22",
      "completion_date": "2007-10-26",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-09-15T03:43:11.671Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00270452"
    },
    {
      "nct_id": "NCT00454168",
      "title": "Vaccine Therapy and GM-CSF in Treating Patients With Acute Myeloid Leukemia in Remission",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Leukemia"
      ],
      "interventions": [
        {
          "name": "PR1 leukemia peptide vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "sargramostim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "The Vaccine Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 244,
      "start_date": "2005-05",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2014-01-06",
      "last_synced_at": "2026-09-15T03:43:11.671Z",
      "location_count": 15,
      "location_summary": "Scottsdale, Arizona • Los Angeles, California • South San Francisco, California + 10 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "South San Francisco",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00454168"
    }
  ]
}