{"id": 1103698, "name": "Number of clinical trials", "unit": "trials", "createdAt": "2025-08-18T15:51:57.000Z", "updatedAt": "2025-08-18T15:51:57.000Z", "coverage": "", "timespan": "1918-2031", "datasetId": 7190, "shortUnit": "", "columnOrder": 0, "shortName": "n_studies_country", "catalogPath": "grapher/health/2025-07-28/clinical_trials/trials_per_year#n_studies_country", "descriptionShort": "Annual number of completed clinical trials registered in the [ClinicalTrials.gov](#dod:clinical-trials-gov) database for each country. Registration in the ClinicalTrials database is mandatory for trials in the United States, but voluntary for other countries.\n", "descriptionProcessing": "- If multiple locations are listed, the country with the most locations listed is used. If multiple countries have the same number of locations, the first one listed is used.\n- If a trial has no locations listed or the country is not specified, the location is set to \"Location not specified\".", "type": "int", "grapherConfigIdETL": "0198bde1-5392-758d-924a-bab210f97bd2", "datasetName": "Clinical Trials (ClinicalTrials.gov)", "updatePeriodDays": 365, "datasetVersion": "2025-07-28", "nonRedistributable": false, "display": {"unit": "trials", "numDecimalPlaces": 0}, "schemaVersion": 2, "processingLevel": "major", "presentation": {"topicTagsLinks": ["Medicine & Biotechnology"]}, "descriptionKey": ["This data comes from the [ClinicalTrials.gov](#dod:clinical-trials-gov) database. It only includes [interventional](#dod:interventional-trial) or [observational](#dod:observational-trial) clinical trials that are marked as \"completed\" and have a valid \"completion date\". [Expanded access studies](#dod:expanded-access), which provide access to investigational drugs or devices for patients with serious conditions, are not included in this data.\n", "Country location is determined by the country with the most locations listed in the trial. If multiple countries have the same number of locations, the first one listed is used.", "The year is the year of the trial's completion date. This is first entered (as a planned completion data) when the trial is first registered, and then updated when the trial is completed."], "dimensions": {"years": {"values": [{"id": 1918}, {"id": 1972}, {"id": 1976}, {"id": 1979}, {"id": 1980}, {"id": 1981}, {"id": 1982}, {"id": 1983}, {"id": 1985}, {"id": 1986}, {"id": 1987}, {"id": 1988}, {"id": 1989}, {"id": 1990}, {"id": 1991}, {"id": 1992}, {"id": 1993}, {"id": 1994}, {"id": 1995}, {"id": 1996}, {"id": 1997}, {"id": 1998}, {"id": 1999}, {"id": 2000}, {"id": 2001}, {"id": 2002}, {"id": 2003}, {"id": 2004}, {"id": 2005}, {"id": 2006}, {"id": 2007}, {"id": 2008}, {"id": 2009}, {"id": 2010}, {"id": 2011}, {"id": 2012}, {"id": 2013}, {"id": 2014}, {"id": 2015}, {"id": 2016}, {"id": 2017}, {"id": 2018}, {"id": 2019}, {"id": 2020}, {"id": 2021}, {"id": 2022}, {"id": 2023}, {"id": 2024}, {"id": 2025}, {"id": 2031}]}, "entities": {"values": [{"id": 371936, "name": "Location not specified", "code": null}, {"id": 13, "name": "United States", "code": "USA"}, {"id": 4, "name": "Belgium", "code": "BEL"}, {"id": 10, "name": "Sweden", "code": "SWE"}, {"id": 1, "name": "United Kingdom", "code": "GBR"}, {"id": 24, "name": "Austria", "code": "AUT"}, {"id": 28, "name": "Bangladesh", "code": "BGD"}, {"id": 101, "name": "Pakistan", "code": "PAK"}, {"id": 7, "name": "Switzerland", "code": "CHE"}, {"id": 172, "name": "Chile", "code": "CHL"}, {"id": 171, "name": "China", "code": "CHN"}, {"id": 161, "name": "Denmark", "code": "DNK"}, {"id": 137, "name": "India", "code": "IND"}, {"id": 8, "name": "Italy", "code": "ITA"}, {"id": 3, "name": "France", "code": "FRA"}, {"id": 165, "name": "Croatia", "code": "HRV"}, {"id": 14, "name": "Japan", "code": "JPN"}, {"id": 127, "name": "South Korea", "code": "KOR"}, {"id": 23, "name": "Australia", "code": "AUS"}, {"id": 37, "name": "Brazil", "code": "BRA"}, {"id": 44, "name": "Canada", "code": "CAN"}, {"id": 6, "name": "Germany", "code": "DEU"}, {"id": 155, "name": "Finland", "code": "FIN"}, {"id": 9, "name": "Spain", "code": "ESP"}, {"id": 198, "name": "Taiwan", "code": "TWN"}, {"id": 5, "name": "Netherlands", "code": "NLD"}, {"id": 21, "name": "Argentina", "code": "ARG"}, {"id": 133, "name": "Israel", "code": "ISR"}, {"id": 162, "name": "Czechia", "code": "CZE"}, {"id": 113, "name": "Mexico", "code": "MEX"}, {"id": 75, "name": "Thailand", "code": "THA"}, {"id": 34, "name": "Bolivia", "code": "BOL"}, {"id": 149, "name": "Greece", "code": "GRC"}, {"id": 94, "name": "Guinea-Bissau", "code": "GNB"}, {"id": 2, "name": "Ireland", "code": "IRL"}, {"id": 95, "name": "Portugal", "code": "PRT"}, {"id": 102, "name": "Norway", "code": "NOR"}, {"id": 86, "name": "Singapore", "code": "SGP"}, {"id": 81, "name": "South Africa", "code": "ZAF"}, {"id": 151, "name": "Gambia", "code": "GMB"}, {"id": 68, "name": "Uganda", "code": "UGA"}, {"id": 32, "name": "Benin", "code": "BEN"}, {"id": 40, "name": "Burkina Faso", "code": "BFA"}, {"id": 145, "name": "Haiti", "code": "HTI"}, {"id": 138, "name": "Hungary", "code": "HUN"}, {"id": 106, "name": "New Zealand", "code": "NZL"}, {"id": 96, "name": "Philippines", "code": "PHL"}, {"id": 11, "name": "Poland", "code": "POL"}, {"id": 12, "name": "Russia", "code": "RUS"}, {"id": 64, "name": "Tanzania", "code": "TZA"}, {"id": 70, "name": "Turkey", "code": "TUR"}, {"id": 170, "name": "Colombia", "code": "COL"}, {"id": 271, "name": "Yugoslavia", "code": "OWID_YGS"}, {"id": 153, "name": "Gabon", "code": "GAB"}, {"id": 144, "name": "Hong Kong", "code": "HKG"}, {"id": 136, "name": "Indonesia", "code": "IDN"}, {"id": 135, "name": "Iran", "code": "IRN"}, {"id": 129, "name": "Kenya", "code": "KEN"}, {"id": 118, "name": "Madagascar", "code": "MDG"}, {"id": 117, "name": "Malawi", "code": "MWI"}, {"id": 109, "name": "Mozambique", "code": "MOZ"}, {"id": 89, "name": "Senegal", "code": "SEN"}, {"id": 63, "name": "Uruguay", "code": "URY"}, {"id": 80, "name": "Zimbabwe", "code": "ZWE"}, {"id": 19, "name": "Angola", "code": "AGO"}, {"id": 39, "name": "Bulgaria", "code": "BGR"}, {"id": 166, "name": "Costa Rica", "code": "CRI"}, {"id": 160, "name": "Dominican Republic", "code": "DOM"}, {"id": 65, "name": "Egypt", "code": "EGY"}, {"id": 150, "name": "Ghana", "code": "GHA"}, {"id": 148, "name": "Guatemala", "code": "GTM"}, {"id": 92, "name": "Romania", "code": "ROU"}, {"id": 130, "name": "Jordan", "code": "JOR"}, {"id": 124, "name": "Lebanon", "code": "LBN"}, {"id": 116, "name": "Malaysia", "code": "MYS"}, {"id": 115, "name": "Mali", "code": "MLI"}, {"id": 97, "name": "Peru", "code": "PER"}, {"id": 93, "name": "Puerto Rico", "code": "PRI"}, {"id": 87, "name": "Sierra Leone", "code": "SLE"}, {"id": 79, "name": "Sudan", "code": "SDN"}, {"id": 73, "name": "Trinidad and Tobago", "code": "TTO"}, {"id": 71, "name": "Tunisia", "code": "TUN"}, {"id": 60, "name": "Zambia", "code": "ZMB"}, {"id": 17, "name": "Algeria", "code": "DZA"}, {"id": 36, "name": "Botswana", "code": "BWA"}, {"id": 167, "name": "Democratic Republic of Congo", "code": "COD"}, {"id": 201, "name": "Ecuador", "code": "ECU"}, {"id": 158, "name": "Ethiopia", "code": "ETH"}, {"id": 139, "name": "Honduras", "code": "HND"}, {"id": 132, "name": "Jamaica", "code": "JAM"}, {"id": 131, "name": "Kazakhstan", "code": "KAZ"}, {"id": 213, "name": "Mauritius", "code": "MUS"}, {"id": 107, "name": "Nepal", "code": "NPL"}, {"id": 168, "name": "Congo", "code": "COG"}, {"id": 90, "name": "Saudi Arabia", "code": "SAU"}, {"id": 268, "name": "Serbia and Montenegro", "code": "OWID_SRM"}, {"id": 85, "name": "Slovakia", "code": "SVK"}, {"id": 74, "name": "Togo", "code": "TGO"}, {"id": 67, "name": "Ukraine", "code": "UKR"}, {"id": 84, "name": "Vietnam", "code": "VNM"}, {"id": 30, "name": "Belarus", "code": "BLR"}, {"id": 42, "name": "Cambodia", "code": "KHM"}, {"id": 43, "name": "Cameroon", "code": "CMR"}, {"id": 174, "name": "Central African Republic", "code": "CAF"}, {"id": 143, "name": "Cote d'Ivoire", "code": "CIV"}, {"id": 202, "name": "Fiji", "code": "FJI"}, {"id": 119, "name": "Lithuania", "code": "LTU"}, {"id": 215, "name": "Montenegro", "code": "MNE"}, {"id": 103, "name": "Nigeria", "code": "NGA"}, {"id": 66, "name": "North Macedonia", "code": "MKD"}, {"id": 91, "name": "Rwanda", "code": "RWA"}, {"id": 88, "name": "Serbia", "code": "SRB"}, {"id": 83, "name": "Slovenia", "code": "SVN"}, {"id": 141, "name": "Sri Lanka", "code": "LKA"}, {"id": 15, "name": "Afghanistan", "code": "AFG"}, {"id": 27, "name": "Bahrain", "code": "BHR"}, {"id": 35, "name": "Bosnia and Herzegovina", "code": "BIH"}, {"id": 164, "name": "Cuba", "code": "CUB"}, {"id": 156, "name": "Estonia", "code": "EST"}, {"id": 152, "name": "Georgia", "code": "GEO"}, {"id": 110, "name": "Morocco", "code": "MAR"}, {"id": 266, "name": "Northern Mariana Islands", "code": "MNP"}, {"id": 100, "name": "Panama", "code": "PAN"}, {"id": 226, "name": "Qatar", "code": "QAT"}, {"id": 18, "name": "Andorra", "code": "AND"}, {"id": 22, "name": "Armenia", "code": "ARM"}, {"id": 259, "name": "El Salvador", "code": "SLV"}, {"id": 207, "name": "Iceland", "code": "ISL"}, {"id": 134, "name": "Iraq", "code": "IRQ"}, {"id": 208, "name": "Kuwait", "code": "KWT"}, {"id": 122, "name": "Latvia", "code": "LVA"}, {"id": 105, "name": "Nicaragua", "code": "NIC"}, {"id": 238, "name": "Venezuela", "code": "VEN"}, {"id": 41, "name": "Burundi", "code": "BDI"}, {"id": 163, "name": "Cyprus", "code": "CYP"}, {"id": 111, "name": "Moldova", "code": "MDA"}, {"id": 112, "name": "Mongolia", "code": "MNG"}, {"id": 77, "name": "Syria", "code": "SYR"}, {"id": 16, "name": "Albania", "code": "ALB"}, {"id": 246, "name": "American Samoa", "code": "ASM"}, {"id": 142, "name": "Myanmar", "code": "MMR"}, {"id": 210, "name": "Luxembourg", "code": "LUX"}, {"id": 284, "name": "Martinique", "code": "MTQ"}, {"id": 99, "name": "Papua New Guinea", "code": "PNG"}, {"id": 227, "name": "Saint Kitts and Nevis", "code": "KNA"}, {"id": 72, "name": "United Arab Emirates", "code": "ARE"}, {"id": 25, "name": "Azerbaijan", "code": "AZE"}, {"id": 173, "name": "Chad", "code": "TCD"}, {"id": 121, "name": "Liberia", "code": "LBR"}, {"id": 98, "name": "Paraguay", "code": "PRY"}, {"id": 26, "name": "Bahamas", "code": "BHS"}, {"id": 206, "name": "Grenada", "code": "GRD"}, {"id": 252, "name": "Guadeloupe", "code": "GLP"}, {"id": 123, "name": "Lesotho", "code": "LSO"}, {"id": 104, "name": "Niger", "code": "NER"}, {"id": 31, "name": "Belize", "code": "BLZ"}, {"id": 78, "name": "Eswatini", "code": "SWZ"}, {"id": 126, "name": "Kyrgyzstan", "code": "KGZ"}, {"id": 217, "name": "Oman", "code": "OMN"}, {"id": 140, "name": "Palestine", "code": "PSE"}, {"id": 146, "name": "Guyana", "code": "GUY"}, {"id": 379, "name": "Kosovo", "code": "OWID_KOS"}, {"id": 33, "name": "Bhutan", "code": "BTN"}, {"id": 253, "name": "French Guiana", "code": "GUF"}, {"id": 147, "name": "Guinea", "code": "GIN"}, {"id": 62, "name": "Uzbekistan", "code": "UZB"}, {"id": 159, "name": "Equatorial Guinea", "code": "GNQ"}, {"id": 212, "name": "Malta", "code": "MLT"}, {"id": 234, "name": "Suriname", "code": "SUR"}, {"id": 125, "name": "Laos", "code": "LAO"}, {"id": 108, "name": "Namibia", "code": "NAM"}, {"id": 76, "name": "Tajikistan", "code": "TJK"}, {"id": 29, "name": "Barbados", "code": "BRB"}, {"id": 38, "name": "Brunei", "code": "BRN"}, {"id": 157, "name": "Eritrea", "code": "ERI"}, {"id": 245, "name": "Reunion", "code": "REU"}, {"id": 239, "name": "Samoa", "code": "WSM"}, {"id": 195, "name": "Solomon Islands", "code": "SLB"}, {"id": 61, "name": "Yemen", "code": "YEM"}, {"id": 20, "name": "Antigua and Barbuda", "code": "ATG"}, {"id": 222, "name": "Micronesia (country)", "code": "FSM"}, {"id": 214, "name": "Monaco", "code": "MCO"}, {"id": 82, "name": "Somalia", "code": "SOM"}, {"id": 169, "name": "Comoros", "code": "COM"}, {"id": 250, "name": "Faroe Islands", "code": "FRO"}, {"id": 254, "name": "Guam", "code": "GUM"}, {"id": 203, "name": "French Polynesia", "code": "PYF"}, {"id": 205, "name": "Greenland", "code": "GRL"}, {"id": 262, "name": "Macao", "code": "MAC"}, {"id": 220, "name": "New Caledonia", "code": "NCL"}, {"id": 225, "name": "East Timor", "code": "TLS"}, {"id": 69, "name": "Turkmenistan", "code": "TKM"}, {"id": 45, "name": "Cape Verde", "code": "CPV"}, {"id": 209, "name": "Liechtenstein", "code": "LIE"}, {"id": 231, "name": "San Marino", "code": "SMR"}, {"id": 258, "name": "South Sudan", "code": "SSD"}, {"id": 221, "name": "Vanuatu", "code": "VUT"}, {"id": 120, "name": "Libya", "code": "LBY"}]}}, "origins": [{"id": 7011, "title": "Clinical Trials (ClinicalTrials.gov)", "description": "ClinicalTrials.gov is a website and online database of clinical research studies and information about their results. The purpose of ClinicalTrials.gov is to provide information about clinical research studies to the public, researchers, and health care professionals.", "producer": "ClinicalTrials.gov", "citationFull": "National Library of Medicine (US), National Center for Biotechnology Information, ClinicalTrials.gov. U.S. National Institutes of Health, https://clinicaltrials.gov/ (2025)", "attributionShort": "NIH", "urlMain": "https://clinicaltrials.gov/about-site/trends-charts", "urlDownload": "https://clinicaltrials.gov/data-api/api", "dateAccessed": "2025-07-28", "datePublished": "2025", "license": {"url": "https://clinicaltrials.gov/about-site/terms-conditions", "name": "ClinicalTrials.gov Terms and Conditions"}}]}