{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Metastatic+Thyroid+Gland+Follicular+Carcinoma", "query": { "condition": "Metastatic Thyroid Gland Follicular Carcinoma" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 27, "total_pages": 3, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Metastatic+Thyroid+Gland+Follicular+Carcinoma&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-05-22T04:04:57.221Z", "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": "NCT00118248", "title": "Tanespimycin in Treating Patients With Inoperable Locoregionally Advanced or Metastatic Thyroid Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Recurrent Thyroid Cancer", "Stage IV Follicular Thyroid Cancer", "Stage IV Papillary Thyroid Cancer", "Thyroid Gland Medullary Carcinoma" ], "interventions": [ { "name": "tanespimycin", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "National Cancer Institute (NCI)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 41, "start_date": "2004-12", "completion_date": "2012-04", "has_results": true, "last_update_posted_date": "2017-02-15", "last_synced_at": "2026-05-22T04:04:57.221Z", "location_count": 1, "location_summary": "Rochester, Minnesota", "locations": [ { "city": "Rochester", "state": "Minnesota" } ], "official_url": "https://clinicaltrials.gov/study/NCT00118248" }, { "nct_id": "NCT00095836", "title": "Gefitinib in Treating Patients With Locally Advanced or Metastatic Thyroid Cancer That Did Not Respond to Iodine Therapy", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Head and Neck Cancer" ], "interventions": [ { "name": "Gefitinib", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Massachusetts General Hospital", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 27, "start_date": "2003-03", "completion_date": "2011-03", "has_results": true, "last_update_posted_date": "2017-05-31", "last_synced_at": "2026-05-22T04:04:57.221Z", "location_count": 2, "location_summary": "Boston, Massachusetts", "locations": [ { "city": "Boston", "state": "Massachusetts" }, { "city": "Boston", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT00095836" }, { "nct_id": "NCT00085293", "title": "Decitabine in Treating Patients With Metastatic Papillary Thyroid Cancer or Follicular Thyroid Cancer Unresponsive to Iodine I 131", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Recurrent Thyroid Cancer", "Stage IVA Follicular Thyroid Cancer", "Stage IVA Papillary Thyroid Cancer", "Stage IVB Follicular Thyroid Cancer", "Stage IVB Papillary Thyroid Cancer", "Stage IVC Follicular Thyroid Cancer", "Stage IVC Papillary Thyroid Cancer" ], "interventions": [ { "name": "Decitabine", "type": "DRUG" }, { "name": "Iodine I 131", "type": "RADIATION" }, { "name": "Recombinant thyrotropin alfa", "type": "BIOLOGICAL" }, { "name": "Fludeoxyglucose F 18", "type": "RADIATION" }, { "name": "Positron emission tomography", "type": "PROCEDURE" } ], "intervention_types": [ "DRUG", "RADIATION", "BIOLOGICAL", "PROCEDURE" ], "sponsor": "National Cancer Institute (NCI)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 12, "start_date": "2004-05", "completion_date": "2014-05", "has_results": true, "last_update_posted_date": "2018-11-29", "last_synced_at": "2026-05-22T04:04:57.221Z", "location_count": 3, "location_summary": "Aurora, Colorado • Columbus, Ohio • Houston, Texas", "locations": [ { "city": "Aurora", "state": "Colorado" }, { "city": "Columbus", "state": "Ohio" }, { "city": "Houston", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT00085293" }, { "nct_id": "NCT01413113", "title": "Iodine I 131 and Pazopanib Hydrochloride in Treating Patients With Recurrent and/or Metastatic Thyroid Cancer Previously Treated With Iodine I 131 That Cannot Be Removed By Surgery", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Recurrent Thyroid Cancer", "Stage IVA Follicular Thyroid Cancer", "Stage IVA Papillary Thyroid Cancer", "Stage IVB Follicular Thyroid Cancer", "Stage IVB Papillary Thyroid Cancer", "Stage IVC Follicular Thyroid Cancer", "Stage IVC Papillary Thyroid Cancer" ], "interventions": [ { "name": "pazopanib hydrochloride", "type": "DRUG" }, { "name": "iodine I 131", "type": "RADIATION" } ], "intervention_types": [ "DRUG", "RADIATION" ], "sponsor": "University of Washington", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 6, "start_date": "2011-12", "completion_date": "2015-10", "has_results": false, "last_update_posted_date": "2015-11-05", "last_synced_at": "2026-05-22T04:04:57.221Z", "location_count": 1, "location_summary": "Seattle, Washington", "locations": [ { "city": "Seattle", "state": "Washington" } ], "official_url": "https://clinicaltrials.gov/study/NCT01413113" }, { "nct_id": "NCT00004074", "title": "Interleukin-12 and Trastuzumab in Treating Patients With Cancer That Has High Levels of HER2/Neu", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Advanced Adult Primary Liver Cancer", "Anaplastic Thyroid Cancer", "Bone Metastases", "Carcinoma of the Appendix", "Distal Urethral Cancer", "Fallopian Tube Cancer", "Gastrinoma", "Glucagonoma", "Inflammatory Breast Cancer", "Insulinoma", "Liver Metastases", "Localized Unresectable Adult Primary Liver Cancer", "Lung Metastases", "Male Breast Cancer", "Malignant Pericardial Effusion", "Malignant Pleural Effusion", "Metastatic Gastrointestinal Carcinoid Tumor", "Metastatic Parathyroid Cancer", "Metastatic Transitional Cell Cancer of the Renal Pelvis and Ureter", "Newly Diagnosed Carcinoma of Unknown Primary", "Occult Non-small Cell Lung Cancer", "Pancreatic Polypeptide Tumor", "Primary Peritoneal Cavity Cancer", "Proximal Urethral Cancer", "Pulmonary Carcinoid Tumor", "Recurrent Adenoid Cystic Carcinoma of the Oral Cavity", "Recurrent Adrenocortical Carcinoma", "Recurrent Adult Primary Liver Cancer", "Recurrent Anal Cancer", "Recurrent Bladder Cancer", "Recurrent Breast Cancer", "Recurrent Carcinoma of Unknown Primary", "Recurrent Cervical Cancer", "Recurrent Colon Cancer", "Recurrent Endometrial Carcinoma", "Recurrent Esophageal Cancer", "Recurrent Extrahepatic Bile Duct Cancer", "Recurrent Gallbladder Cancer", "Recurrent Gastric Cancer", "Recurrent Gastrointestinal Carcinoid Tumor", "Recurrent Islet Cell Carcinoma", "Recurrent Malignant Testicular Germ Cell Tumor", "Recurrent Mucoepidermoid Carcinoma of the Oral Cavity", "Recurrent Non-small Cell Lung Cancer", "Recurrent Ovarian Epithelial Cancer", "Recurrent Pancreatic Cancer", "Recurrent Parathyroid Cancer", "Recurrent Prostate Cancer", "Recurrent Rectal Cancer", "Recurrent Renal Cell Cancer", "Recurrent Salivary Gland Cancer", "Recurrent Small Intestine Cancer", "Recurrent Squamous Cell Carcinoma of the Larynx", "Recurrent Squamous Cell Carcinoma of the Lip and Oral Cavity", "Recurrent Squamous Cell Carcinoma of the Nasopharynx", "Recurrent Squamous Cell Carcinoma of the Oropharynx", "Recurrent Thyroid Cancer", "Recurrent Transitional Cell Cancer of the Renal Pelvis and Ureter", "Recurrent Urethral Cancer", "Recurrent Vaginal Cancer", "Recurrent Vulvar Cancer", "Skin Metastases", "Small Intestine Adenocarcinoma", "Somatostatinoma", "Stage III Adenoid Cystic Carcinoma of the Oral Cavity", "Stage III Adrenocortical Carcinoma", "Stage III Bladder Cancer", "Stage III Cervical Cancer", "Stage III Colon Cancer", "Stage III Endometrial Carcinoma", "Stage III Esophageal Cancer", "Stage III Follicular Thyroid Cancer", "Stage III Gastric Cancer", "Stage III Malignant Testicular Germ Cell Tumor", "Stage III Mucoepidermoid Carcinoma of the Oral Cavity", "Stage III Ovarian Epithelial Cancer", "Stage III Pancreatic Cancer", "Stage III Papillary Thyroid Cancer", "Stage III Prostate Cancer", "Stage III Rectal Cancer", "Stage III Renal Cell Cancer", "Stage III Salivary Gland Cancer", "Stage III Squamous Cell Carcinoma of the Larynx", "Stage III Squamous Cell Carcinoma of the Lip and Oral Cavity", "Stage III Squamous Cell Carcinoma of the Nasopharynx", "Stage III Squamous Cell Carcinoma of the Oropharynx", "Stage III Vaginal Cancer", "Stage III Vulvar Cancer", "Stage IIIA Anal Cancer", "Stage IIIA Breast Cancer", "Stage IIIA Non-small Cell Lung Cancer", "Stage IIIB Anal Cancer", "Stage IIIB Breast Cancer", "Stage IIIB Non-small Cell Lung Cancer", "Stage IV Adenoid Cystic Carcinoma of the Oral Cavity", "Stage IV Adrenocortical Carcinoma", "Stage IV Anal Cancer", "Stage IV Bladder Cancer", "Stage IV Breast Cancer", "Stage IV Colon Cancer", "Stage IV Endometrial Carcinoma", "Stage IV Esophageal Cancer", "Stage IV Follicular Thyroid Cancer", "Stage IV Gastric Cancer", "Stage IV Mucoepidermoid Carcinoma of the Oral Cavity", "Stage IV Non-small Cell Lung Cancer", "Stage IV Ovarian Epithelial Cancer", "Stage IV Pancreatic Cancer", "Stage IV Papillary Thyroid Cancer", "Stage IV Prostate Cancer", "Stage IV Rectal Cancer", "Stage IV Renal Cell Cancer", "Stage IV Salivary Gland Cancer", "Stage IV Squamous Cell Carcinoma of the Larynx", "Stage IV Squamous Cell Carcinoma of the Lip and Oral Cavity", "Stage IV Squamous Cell Carcinoma of the Nasopharynx", "Stage IV Squamous Cell Carcinoma of the Oropharynx", "Stage IVA Cervical Cancer", "Stage IVA Vaginal Cancer", "Stage IVB Cervical Cancer", "Stage IVB Vaginal Cancer", "Stage IVB Vulvar Cancer", "Thyroid Gland Medullary Carcinoma", "Unresectable Extrahepatic Bile Duct Cancer", "Unresectable Gallbladder Cancer", "Urethral Cancer Associated With Invasive Bladder Cancer", "WDHA Syndrome" ], "interventions": [ { "name": "recombinant interleukin-12", "type": "BIOLOGICAL" }, { "name": "ABI-007/carboplatin/trastuzumab", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "National Cancer Institute (NCI)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 15, "start_date": "1999-08", "completion_date": null, "has_results": false, "last_update_posted_date": "2013-02-28", "last_synced_at": "2026-05-22T04:04:57.221Z", "location_count": 1, "location_summary": "Columbus, Ohio", "locations": [ { "city": "Columbus", "state": "Ohio" } ], "official_url": "https://clinicaltrials.gov/study/NCT00004074" }, { "nct_id": "NCT00470496", "title": "Photodynamic Therapy Using HPPH in Treating Patients Undergoing Surgery for Primary or Recurrent Head and Neck Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Recurrent Adenoid Cystic Carcinoma of the Oral Cavity", "Recurrent Basal Cell Carcinoma of the Lip", "Recurrent Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity", "Recurrent Inverted Papilloma of the Paranasal Sinus and Nasal Cavity", "Recurrent Lymphoepithelioma of the Nasopharynx", "Recurrent Lymphoepithelioma of the Oropharynx", "Recurrent Metastatic Squamous Neck Cancer With Occult Primary", "Recurrent Midline Lethal Granuloma of the Paranasal Sinus and Nasal Cavity", "Recurrent Mucoepidermoid Carcinoma of the Oral Cavity", "Recurrent Salivary Gland Cancer", "Recurrent Squamous Cell Carcinoma of the Hypopharynx", "Recurrent Squamous Cell Carcinoma of the Larynx", "Recurrent Squamous Cell Carcinoma of the Lip and Oral Cavity", "Recurrent Squamous Cell Carcinoma of the Nasopharynx", "Recurrent Squamous Cell Carcinoma of the Oropharynx", "Recurrent Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity", "Recurrent Thyroid Cancer", "Recurrent Verrucous Carcinoma of the Larynx", "Recurrent Verrucous Carcinoma of the Oral Cavity", "Stage I Adenoid Cystic Carcinoma of the Oral Cavity", "Stage I Basal Cell Carcinoma of the Lip", "Stage I Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity", "Stage I Follicular Thyroid Cancer", "Stage I Inverted Papilloma of the Paranasal Sinus and Nasal Cavity", "Stage I Lymphoepithelioma of the Nasopharynx", "Stage I Lymphoepithelioma of the Oropharynx", "Stage I Midline Lethal Granuloma of the Paranasal Sinus and Nasal Cavity", "Stage I Mucoepidermoid Carcinoma of the Oral Cavity", "Stage I Papillary Thyroid Cancer", "Stage I Salivary Gland Cancer", "Stage I Squamous Cell Carcinoma of the Hypopharynx", "Stage I Squamous Cell Carcinoma of the Larynx", "Stage I Squamous Cell Carcinoma of the Lip and Oral Cavity", "Stage I Squamous Cell Carcinoma of the Oropharynx", "Stage I Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity", "Stage I Verrucous Carcinoma of the Larynx", "Stage I Verrucous Carcinoma of the Oral Cavity", "Stage II Adenoid Cystic Carcinoma of the Oral Cavity", "Stage II Basal Cell Carcinoma of the Lip", "Stage II Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity", "Stage II Follicular Thyroid Cancer", "Stage II Inverted Papilloma of the Paranasal Sinus and Nasal Cavity", "Stage II Lymphoepithelioma of the Nasopharynx", "Stage II Lymphoepithelioma of the Oropharynx", "Stage II Midline Lethal Granuloma of the Paranasal Sinus and Nasal Cavity", "Stage II Mucoepidermoid Carcinoma of the Oral Cavity", "Stage II Papillary Thyroid Cancer", "Stage II Salivary Gland Cancer", "Stage II Squamous Cell Carcinoma of the Hypopharynx", "Stage II Squamous Cell Carcinoma of the Larynx", "Stage II Squamous Cell Carcinoma of the Lip and Oral Cavity", "Stage II Squamous Cell Carcinoma of the Oropharynx", "Stage II Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity", "Stage II Verrucous Carcinoma of the Larynx", "Stage II Verrucous Carcinoma of the Oral Cavity" ], "interventions": [ { "name": "HPPH", "type": "DRUG" }, { "name": "photodynamic therapy", "type": "DRUG" }, { "name": "conventional surgery", "type": "PROCEDURE" } ], "intervention_types": [ "DRUG", "PROCEDURE" ], "sponsor": "Roswell Park Cancer Institute", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 15, "start_date": "2006-10-19", "completion_date": "2018-08-30", "has_results": false, "last_update_posted_date": "2022-07-25", "last_synced_at": "2026-05-22T04:04:57.221Z", "location_count": 1, "location_summary": "Buffalo, New York", "locations": [ { "city": "Buffalo", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT00470496" }, { "nct_id": "NCT00005842", "title": "Trastuzumab Plus R115777 in Treating Patients With Advanced or Metastatic Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Cancer" ], "interventions": [ { "name": "trastuzumab", "type": "BIOLOGICAL" }, { "name": "tipifarnib", "type": "DRUG" } ], "intervention_types": [ "BIOLOGICAL", "DRUG" ], "sponsor": "National Cancer Institute (NCI)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 24, "start_date": "2000-06", "completion_date": null, "has_results": false, "last_update_posted_date": "2013-02-11", "last_synced_at": "2026-05-22T04:04:57.221Z", "location_count": 2, "location_summary": "Fort Sam Houston, Texas • San Antonio, Texas", "locations": [ { "city": "Fort Sam Houston", "state": "Texas" }, { "city": "San Antonio", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT00005842" }, { "nct_id": "NCT02152995", "title": "Trametinib in Increasing Tumoral Iodine Incorporation in Patients With Recurrent or Metastatic Thyroid Cancer", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Metastatic Thyroid Gland Carcinoma", "Poorly Differentiated Thyroid Gland Carcinoma", "Recurrent Thyroid Gland Carcinoma", "Refractory Thyroid Gland Carcinoma", "Stage IV Thyroid Gland Follicular Carcinoma AJCC v7", "Stage IV Thyroid Gland Papillary Carcinoma AJCC v7", "Stage IVA Thyroid Gland Follicular Carcinoma AJCC v7", "Stage IVA Thyroid Gland Papillary Carcinoma AJCC v7", "Stage IVB Thyroid Gland Follicular Carcinoma AJCC v7", "Stage IVB Thyroid Gland Papillary Carcinoma AJCC v7", "Stage IVC Thyroid Gland Follicular Carcinoma AJCC v7", "Stage IVC Thyroid Gland Papillary Carcinoma AJCC v7" ], "interventions": [ { "name": "Computed Tomography", "type": "PROCEDURE" }, { "name": "Iodine I 124", "type": "OTHER" }, { "name": "Iodine I-131", "type": "RADIATION" }, { "name": "Laboratory Biomarker Analysis", "type": "OTHER" }, { "name": "Pharmacodynamic Study", "type": "OTHER" }, { "name": "Positron Emission Tomography", "type": "PROCEDURE" }, { "name": "Trametinib", "type": "DRUG" } ], "intervention_types": [ "PROCEDURE", "OTHER", "RADIATION", "DRUG" ], "sponsor": "National Cancer Institute (NCI)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 34, "start_date": "2014-08-14", "completion_date": "2027-02-05", "has_results": true, "last_update_posted_date": "2026-04-13", "last_synced_at": "2026-05-22T04:04:57.221Z", "location_count": 1, "location_summary": "New York, New York", "locations": [ { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT02152995" }, { "nct_id": "NCT00519896", "title": "Sunitinib Malate in Treating Patients With Iodine-Refractory Recurrent or Metastatic Thyroid Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Recurrent Thyroid Cancer", "Stage IVA Follicular Thyroid Cancer", "Stage IVA Papillary Thyroid Cancer", "Stage IVB Follicular Thyroid Cancer", "Stage IVB Papillary Thyroid Cancer", "Stage IVC Follicular Thyroid Cancer", "Stage IVC Papillary Thyroid Cancer", "Thyroid Gland Medullary Carcinoma" ], "interventions": [ { "name": "sunitinib malate", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of Washington", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 35, "start_date": "2007-07", "completion_date": "2015-09", "has_results": true, "last_update_posted_date": "2017-04-25", "last_synced_at": "2026-05-22T04:04:57.221Z", "location_count": 1, "location_summary": "Seattle, Washington", "locations": [ { "city": "Seattle", "state": "Washington" } ], "official_url": "https://clinicaltrials.gov/study/NCT00519896" }, { "nct_id": "NCT00098852", "title": "Rosiglitazone in Treating Patients With Locoregionally Extensive or Metastatic Thyroid Cancer", "overall_status": "UNKNOWN", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Head and Neck Cancer" ], "interventions": [ { "name": "rosiglitazone maleate", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of California, San Francisco", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 25, "start_date": "2004-10", "completion_date": null, "has_results": false, "last_update_posted_date": "2014-01-06", "last_synced_at": "2026-05-22T04:04:57.221Z", "location_count": 1, "location_summary": "San Francisco, California", "locations": [ { "city": "San Francisco", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00098852" } ] }