{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Paranasal+Sinus+Cancer&page=2", "query": { "condition": "Paranasal Sinus Cancer", "page": 2 }, "page_size": 10 }, "pagination": { "page": 2, "page_size": 10, "total_count": 10, "total_pages": 1, "next_page_url": null, "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Paranasal+Sinus+Cancer&page=1&page_size=10" }, "source": "remote", "last_synced_at": "2026-06-10T21:05:03.113Z", "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": "NCT01316757", "title": "Carboplatin, Paclitaxel, Cetuximab, and Erlotinib Hydrochloride in Treating Patients With Metastatic or Recurrent Head and Neck Squamous Cell Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Metastatic Squamous Neck Cancer With Occult Primary Squamous Cell Carcinoma", "Recurrent Metastatic Squamous Neck Cancer With Occult Primary", "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 Verrucous Carcinoma of the Larynx", "Recurrent Verrucous Carcinoma of the Oral Cavity", "Salivary Gland Squamous Cell Carcinoma", "Stage IV Salivary Gland Cancer", "Stage IV Squamous Cell Carcinoma of the Hypopharynx", "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 IV Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity", "Stage IV Verrucous Carcinoma of the Larynx", "Stage IV Verrucous Carcinoma of the Oral Cavity", "Tongue Cancer", "Untreated Metastatic Squamous Neck Cancer With Occult Primary" ], "interventions": [ { "name": "cetuximab", "type": "BIOLOGICAL" }, { "name": "paclitaxel", "type": "DRUG" }, { "name": "carboplatin", "type": "DRUG" }, { "name": "erlotinib hydrochloride", "type": "DRUG" }, { "name": "laboratory biomarker analysis", "type": "OTHER" } ], "intervention_types": [ "BIOLOGICAL", "DRUG", "OTHER" ], "sponsor": "Fox Chase 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": 24, "start_date": "2011-02-16", "completion_date": "2017-10-03", "has_results": false, "last_update_posted_date": "2018-02-26", "last_synced_at": "2026-06-10T21:05:03.113Z", "location_count": 3, "location_summary": "Rochester, New York • Philadelphia, Pennsylvania • Dallas, Texas", "locations": [ { "city": "Rochester", "state": "New York" }, { "city": "Philadelphia", "state": "Pennsylvania" }, { "city": "Dallas", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT01316757" }, { "nct_id": "NCT00002695", "title": "Analysis of Tumor Tissue and Lymph Nodes Surgically Removed From Patients With Cancers of the Head and Neck", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Head and Neck Cancer" ], "interventions": [ { "name": "DNA stability analysis", "type": "GENETIC" }, { "name": "microsatellite instability analysis", "type": "GENETIC" }, { "name": "mutation analysis", "type": "GENETIC" }, { "name": "laboratory biomarker analysis", "type": "OTHER" } ], "intervention_types": [ "GENETIC", "OTHER" ], "sponsor": "ECOG-ACRIN Cancer Research Group", "sponsor_class": "NETWORK", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "120 Years", "sex": "ALL", "summary": "18 Years to 120 Years" }, "enrollment_count": 530, "start_date": "1996-04-30", "completion_date": "2011-05-27", "has_results": false, "last_update_posted_date": "2023-06-22", "last_synced_at": "2026-06-10T21:05:03.113Z", "location_count": 4, "location_summary": "Baltimore, Maryland • Cleveland, Ohio • Philadelphia, Pennsylvania + 1 more", "locations": [ { "city": "Baltimore", "state": "Maryland" }, { "city": "Cleveland", "state": "Ohio" }, { "city": "Philadelphia", "state": "Pennsylvania" }, { "city": "Green Bay", "state": "Wisconsin" } ], "official_url": "https://clinicaltrials.gov/study/NCT00002695" }, { "nct_id": "NCT00003569", "title": "Dimesna in Treating Patients With Solid Tumors Who Are Undergoing Treatment With Cisplatin and Paclitaxel", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Head and Neck Cancer", "Lung Cancer", "Neurotoxicity", "Ovarian Cancer" ], "interventions": [ { "name": "cisplatin", "type": "DRUG" }, { "name": "dimesna", "type": "DRUG" }, { "name": "paclitaxel", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "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": 2, "start_date": "1998-03", "completion_date": null, "has_results": false, "last_update_posted_date": "2013-01-31", "last_synced_at": "2026-06-10T21:05:03.113Z", "location_count": 3, "location_summary": "Chicago, Illinois • Baltimore, Maryland • Buffalo, New York", "locations": [ { "city": "Chicago", "state": "Illinois" }, { "city": "Baltimore", "state": "Maryland" }, { "city": "Buffalo", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT00003569" }, { "nct_id": "NCT00616590", "title": "Insomnia in Patients Undergoing Chemotherapy and Radiation Therapy for Head and Neck Cancer", "overall_status": "WITHDRAWN", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Fatigue", "Head and Neck Cancer", "Psychosocial Effects of Cancer and Its Treatment", "Sleep Disorders" ], "interventions": [ { "name": "medical chart review", "type": "OTHER" }, { "name": "questionnaire administration", "type": "OTHER" }, { "name": "fatigue assessment and management", "type": "PROCEDURE" }, { "name": "quality-of-life assessment", "type": "PROCEDURE" } ], "intervention_types": [ "OTHER", "PROCEDURE" ], "sponsor": "Vanderbilt University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "21 Years", "maximum_age": null, "sex": "ALL", "summary": "21 Years and older" }, "enrollment_count": 0, "start_date": "2007-07", "completion_date": null, "has_results": false, "last_update_posted_date": "2014-06-17", "last_synced_at": "2026-06-10T21:05:03.113Z", "location_count": 3, "location_summary": "Nashville, Tennessee", "locations": [ { "city": "Nashville", "state": "Tennessee" }, { "city": "Nashville", "state": "Tennessee" }, { "city": "Nashville", "state": "Tennessee" } ], "official_url": "https://clinicaltrials.gov/study/NCT00616590" }, { "nct_id": "NCT00891904", "title": "Radiation Therapy and Cetuximab in Treating Patients With Recurrent Head and Neck Cancer", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Head and Neck Cancer" ], "interventions": [ { "name": "cetuximab", "type": "BIOLOGICAL" }, { "name": "stereotactic body radiation therapy", "type": "RADIATION" } ], "intervention_types": [ "BIOLOGICAL", "RADIATION" ], "sponsor": "Roswell Park Cancer Institute", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "120 Years", "sex": "ALL", "summary": "18 Years to 120 Years" }, "enrollment_count": 2, "start_date": "2009-04", "completion_date": null, "has_results": true, "last_update_posted_date": "2016-04-14", "last_synced_at": "2026-06-10T21:05:03.113Z", "location_count": 1, "location_summary": "Buffalo, New York", "locations": [ { "city": "Buffalo", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT00891904" }, { "nct_id": "NCT00030498", "title": "Erlotinib in Treating Patients With Solid Tumors and Liver or Kidney Dysfunction", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Adult Anaplastic Astrocytoma", "Adult Anaplastic Ependymoma", "Adult Anaplastic Oligodendroglioma", "Adult Brain Stem Glioma", "Adult Diffuse Astrocytoma", "Adult Ependymoblastoma", "Adult Giant Cell Glioblastoma", "Adult Glioblastoma", "Adult Gliosarcoma", "Adult Mixed Glioma", "Adult Myxopapillary Ependymoma", "Adult Oligodendroglioma", "Adult Pilocytic Astrocytoma", "Adult Primary Hepatocellular Carcinoma", "Adult Subependymoma", "Advanced Adult Primary Liver Cancer", "Advanced Malignant Mesothelioma", "Male Breast Cancer", "Recurrent Adenoid Cystic Carcinoma of the Oral Cavity", "Recurrent Adult Brain Tumor", "Recurrent Adult Primary Liver Cancer", "Recurrent Anal Cancer", "Recurrent Basal Cell Carcinoma of the Lip", "Recurrent Bladder Cancer", "Recurrent Breast Cancer", "Recurrent Cervical Cancer", "Recurrent Colon Cancer", "Recurrent Esophageal Cancer", "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 Malignant Mesothelioma", "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 Non-small Cell Lung Cancer", "Recurrent Ovarian Epithelial Cancer", "Recurrent Pancreatic Cancer", "Recurrent Prostate Cancer", "Recurrent Rectal Cancer", "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 Verrucous Carcinoma of the Larynx", "Recurrent Verrucous Carcinoma of the Oral Cavity", "Stage II Esophageal Cancer", "Stage II Pancreatic Cancer", "Stage III Esophageal Cancer", "Stage III Pancreatic Cancer", "Stage IIIB Non-small Cell Lung Cancer", "Stage IV Adenoid Cystic Carcinoma of the Oral Cavity", "Stage IV Anal Cancer", "Stage IV Basal Cell Carcinoma of the Lip", "Stage IV Bladder Cancer", "Stage IV Breast Cancer", "Stage IV Colon Cancer", "Stage IV Esophageal Cancer", "Stage IV Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity", "Stage IV Inverted Papilloma of the Paranasal Sinus and Nasal Cavity", "Stage IV Lymphoepithelioma of the Nasopharynx", "Stage IV Lymphoepithelioma of the Oropharynx", "Stage IV Midline Lethal Granuloma of the Paranasal Sinus and Nasal Cavity", "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 Prostate Cancer", "Stage IV Rectal Cancer", "Stage IV Salivary Gland Cancer", "Stage IV Squamous Cell Carcinoma of the Hypopharynx", "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 IV Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity", "Stage IV Verrucous Carcinoma of the Larynx", "Stage IV Verrucous Carcinoma of the Oral Cavity", "Stage IVA Cervical Cancer", "Stage IVB Cervical Cancer", "Unspecified Adult Solid Tumor, Protocol Specific", "Untreated Metastatic Squamous Neck Cancer With Occult Primary" ], "interventions": [ { "name": "erlotinib hydrochloride", "type": "DRUG" }, { "name": "laboratory biomarker analysis", "type": "OTHER" } ], "intervention_types": [ "DRUG", "OTHER" ], "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": 75, "start_date": "2001-12", "completion_date": null, "has_results": false, "last_update_posted_date": "2013-01-16", "last_synced_at": "2026-06-10T21:05:03.113Z", "location_count": 1, "location_summary": "Chicago, Illinois", "locations": [ { "city": "Chicago", "state": "Illinois" } ], "official_url": "https://clinicaltrials.gov/study/NCT00030498" }, { "nct_id": "NCT00017511", "title": "Cevimeline in Treating Patients With Dry Mouth Caused by Radiation Therapy for Head and Neck Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Head and Neck Cancer", "Oral Complications", "Radiation Toxicity" ], "interventions": [ { "name": "cevimeline hydrochloride", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Daiichi Sankyo", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": null, "start_date": "2001-06", "completion_date": "2003-03", "has_results": false, "last_update_posted_date": "2012-05-16", "last_synced_at": "2026-06-10T21:05:03.113Z", "location_count": 71, "location_summary": "Birmingham, Alabama • Mobile, Alabama • Tucson, Arizona + 61 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Mobile", "state": "Alabama" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Berkeley", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00017511" }, { "nct_id": "NCT00797498", "title": "Photon/Proton Radiation Therapy for Cancers of the Nasal Cavity and/or Paranasal Sinuses", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Cancers of Nasal Cavity", "Cancers of Paranasal Sinuses" ], "interventions": [ { "name": "Xerostomia questionnaire", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "University of Florida", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 174, "start_date": "2006-08", "completion_date": "2015-12", "has_results": false, "last_update_posted_date": "2017-08-14", "last_synced_at": "2026-06-10T21:05:03.113Z", "location_count": 1, "location_summary": "Jacksonville, Florida", "locations": [ { "city": "Jacksonville", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT00797498" }, { "nct_id": "NCT00397384", "title": "Erlotinib Hydrochloride and Cetuximab in Treating Patients With Advanced Gastrointestinal Cancer, Head and Neck Cancer, Non-Small Cell Lung Cancer, or Colorectal Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Adenocarcinoma of the Colon", "Adenocarcinoma of the Rectum", "Advanced Adult Primary Liver Cancer", "Carcinoma of the Appendix", "Gastrointestinal Stromal Tumor", "Metastatic Gastrointestinal Carcinoid Tumor", "Metastatic Squamous Neck Cancer With Occult Primary", "Recurrent Adenoid Cystic Carcinoma of the Oral Cavity", "Recurrent Adult Primary Liver Cancer", "Recurrent Anal Cancer", "Recurrent Basal Cell Carcinoma of the Lip", "Recurrent Colon Cancer", "Recurrent Esophageal Cancer", "Recurrent Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity", "Recurrent Extrahepatic Bile Duct Cancer", "Recurrent Gallbladder Cancer", "Recurrent Gastric Cancer", "Recurrent Gastrointestinal Carcinoid Tumor", "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 Non-small Cell Lung Cancer", "Recurrent Pancreatic Cancer", "Recurrent Rectal Cancer", "Recurrent Salivary Gland Cancer", "Recurrent Small Intestine 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 Verrucous Carcinoma of the Larynx", "Recurrent Verrucous Carcinoma of the Oral Cavity", "Small Intestine Adenocarcinoma", "Small Intestine Leiomyosarcoma", "Small Intestine Lymphoma", "Stage IV Adenoid Cystic Carcinoma of the Oral Cavity", "Stage IV Anal Cancer", "Stage IV Basal Cell Carcinoma of the Lip", "Stage IV Colon Cancer", "Stage IV Esophageal Cancer", "Stage IV Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity", "Stage IV Gastric Cancer", "Stage IV Inverted Papilloma of the Paranasal Sinus and Nasal Cavity", "Stage IV Lymphoepithelioma of the Nasopharynx", "Stage IV Lymphoepithelioma of the Oropharynx", "Stage IV Midline Lethal Granuloma of the Paranasal Sinus and Nasal Cavity", "Stage IV Mucoepidermoid Carcinoma of the Oral Cavity", "Stage IV Non-small Cell Lung Cancer", "Stage IV Pancreatic Cancer", "Stage IV Rectal Cancer", "Stage IV Salivary Gland Cancer", "Stage IV Squamous Cell Carcinoma of the Hypopharynx", "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 IV Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity", "Stage IV Verrucous Carcinoma of the Larynx", "Stage IV Verrucous Carcinoma of the Oral Cavity", "Tongue Cancer", "Unresectable Extrahepatic Bile Duct Cancer", "Unresectable Gallbladder Cancer" ], "interventions": [ { "name": "cetuximab", "type": "DRUG" }, { "name": "erlotinib hydrochloride", "type": "DRUG" }, { "name": "laboratory biomarker analysis", "type": "OTHER" } ], "intervention_types": [ "DRUG", "OTHER" ], "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": 43, "start_date": "2007-01", "completion_date": "2013-06", "has_results": false, "last_update_posted_date": "2015-09-30", "last_synced_at": "2026-06-10T21:05:03.113Z", "location_count": 1, "location_summary": "Nashville, Tennessee", "locations": [ { "city": "Nashville", "state": "Tennessee" } ], "official_url": "https://clinicaltrials.gov/study/NCT00397384" }, { "nct_id": "NCT00666978", "title": "Health Education Counseling With or Without Bupropion in Helping African Americans Stop Smoking", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Bladder Cancer", "Cervical Cancer", "Esophageal Cancer", "Gastric Cancer", "Head and Neck Cancer", "Kidney Cancer", "Leukemia", "Liver Cancer", "Lung Cancer", "Pancreatic Cancer", "Tobacco Use Disorder" ], "interventions": [ { "name": "smoking cessation intervention", "type": "BEHAVIORAL" }, { "name": "bupropion hydrochloride", "type": "DRUG" }, { "name": "gene expression analysis", "type": "GENETIC" }, { "name": "polymerase chain reaction", "type": "GENETIC" }, { "name": "counseling intervention", "type": "OTHER" }, { "name": "educational intervention", "type": "OTHER" }, { "name": "psychosocial assessment and care", "type": "PROCEDURE" } ], "intervention_types": [ "BEHAVIORAL", "DRUG", "GENETIC", "OTHER", "PROCEDURE" ], "sponsor": "Lisa Sanderson Cox, PhD", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 540, "start_date": "2007-12", "completion_date": "2010-06", "has_results": true, "last_update_posted_date": "2017-11-13", "last_synced_at": "2026-06-10T21:05:03.113Z", "location_count": 2, "location_summary": "Kansas City, Kansas • Kansas City, Missouri", "locations": [ { "city": "Kansas City", "state": "Kansas" }, { "city": "Kansas City", "state": "Missouri" } ], "official_url": "https://clinicaltrials.gov/study/NCT00666978" } ] }