{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Retroperitoneal+Disease", "query": { "condition": "Retroperitoneal Disease" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 17, "total_pages": 2, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Retroperitoneal+Disease&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-07-24T09:18:03.410Z", "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": "NCT00751140", "title": "Merits of Performing a Modified Template Retroperitoneal Lymph Node Dissection", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Cancer of the Urinary Tract" ], "interventions": [ { "name": "Lymph Node Dissection", "type": "PROCEDURE" } ], "intervention_types": [ "PROCEDURE" ], "sponsor": "H. Lee Moffitt Cancer Center and Research Institute", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": null, "sex": "ALL", "summary": "Not listed" }, "enrollment_count": 20, "start_date": "2008-09", "completion_date": "2012-04", "has_results": true, "last_update_posted_date": "2017-05-30", "last_synced_at": "2026-07-24T09:18:03.410Z", "location_count": 1, "location_summary": "Tampa, Florida", "locations": [ { "city": "Tampa", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT00751140" }, { "nct_id": "NCT06593665", "title": "Intrathecal Morphine Versus Intravenous Methadone for Postoperative Analgesia Following Retroperitoneal Lymph Node Dissection.", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Testicular Cancer" ], "interventions": [ { "name": "Inrathecal Morphine", "type": "DRUG" }, { "name": "Intravenous Methadone", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Indiana University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "80 Years", "sex": "MALE", "summary": "18 Years to 80 Years · Male only" }, "enrollment_count": 142, "start_date": "2024-09-10", "completion_date": "2026-12-31", "has_results": false, "last_update_posted_date": "2026-02-13", "last_synced_at": "2026-07-24T09:18:03.410Z", "location_count": 2, "location_summary": "Indianapolis, Indiana", "locations": [ { "city": "Indianapolis", "state": "Indiana" }, { "city": "Indianapolis", "state": "Indiana" } ], "official_url": "https://clinicaltrials.gov/study/NCT06593665" }, { "nct_id": "NCT02537548", "title": "Retroperitoneal Lymph Node Dissection in Treating Patients With Testicular Seminoma", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Lymphadenopathy", "Stage I Testicular Seminoma", "Stage II Testicular Seminoma" ], "interventions": [ { "name": "Laboratory Biomarker Analysis", "type": "OTHER" }, { "name": "Retroperitoneal Lymph Node Dissection", "type": "PROCEDURE" } ], "intervention_types": [ "OTHER", "PROCEDURE" ], "sponsor": "University of Southern California", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "16 Years", "maximum_age": null, "sex": "MALE", "summary": "16 Years and older · Male only" }, "enrollment_count": 55, "start_date": "2015-08-28", "completion_date": "2027-12-31", "has_results": false, "last_update_posted_date": "2026-06-09", "last_synced_at": "2026-07-24T09:18:03.410Z", "location_count": 14, "location_summary": "Loma Linda, California • Los Angeles, California • San Francisco, California + 11 more", "locations": [ { "city": "Loma Linda", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "Stanford", "state": "California" }, { "city": "Aurora", "state": "Colorado" } ], "official_url": "https://clinicaltrials.gov/study/NCT02537548" }, { "nct_id": "NCT03283423", "title": "Image-guided Lymphadanectomy in AMIGO", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Lymphadenopathy Retroperitoneal", "Lymphoma" ], "interventions": [ { "name": "Image-guided Lymphadanectomy in AMIGO", "type": "DEVICE" } ], "intervention_types": [ "DEVICE" ], "sponsor": "Brigham and Women's Hospital", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 11, "start_date": "2018-10-25", "completion_date": "2020-03-20", "has_results": false, "last_update_posted_date": "2026-01-09", "last_synced_at": "2026-07-24T09:18:03.410Z", "location_count": 1, "location_summary": "Boston, Massachusetts", "locations": [ { "city": "Boston", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT03283423" }, { "nct_id": "NCT03508570", "title": "Nivolumab With or Without Ipilimumab in Treating Patients With Recurrent or High Grade Gynecologic Cancer With Metastatic Peritoneal Carcinomatosis", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Malignant Peritoneal Neoplasm", "Malignant Retroperitoneal Neoplasm", "Metastatic Cervical Carcinoma", "Metastatic Endometrial Carcinoma", "Metastatic Fallopian Tube Carcinoma", "Metastatic Malignant Female Reproductive System Neoplasm", "Metastatic Ovarian Carcinoma", "Metastatic Primary Peritoneal Carcinoma", "Peritoneal Carcinomatosis", "Platinum-Refractory Fallopian Tube Carcinoma", "Platinum-Refractory Malignant Female Reproductive System Neoplasm", "Platinum-Refractory Ovarian Carcinoma", "Platinum-Refractory Primary Peritoneal Carcinoma", "Platinum-Resistant Fallopian Tube Carcinoma", "Platinum-Resistant Malignant Female Reproductive System Neoplasm", "Platinum-Resistant Ovarian Carcinoma", "Platinum-Resistant Primary Peritoneal Carcinoma", "Recurrent Cervical Carcinoma", "Recurrent Endometrial Carcinoma", "Recurrent Fallopian Tube Carcinoma", "Recurrent Malignant Female Reproductive System Neoplasm", "Recurrent Ovarian Carcinoma", "Recurrent Primary Peritoneal Carcinoma", "Stage IV Fallopian Tube Cancer AJCC v8", "Stage IV Ovarian Cancer AJCC v8", "Stage IV Primary Peritoneal Cancer AJCC v8", "Stage IVA Fallopian Tube Cancer AJCC v8", "Stage IVA Ovarian Cancer AJCC v8", "Stage IVA Primary Peritoneal Cancer AJCC v8", "Stage IVB Cervical Cancer AJCC v8", "Stage IVB Fallopian Tube Cancer AJCC v8", "Stage IVB Ovarian Cancer AJCC v8", "Stage IVB Primary Peritoneal Cancer AJCC v8", "Stage IVB Uterine Corpus Cancer AJCC v8" ], "interventions": [ { "name": "Ipilimumab", "type": "BIOLOGICAL" }, { "name": "Laboratory Biomarker Analysis", "type": "OTHER" }, { "name": "Nivolumab", "type": "BIOLOGICAL" }, { "name": "Pharmacokinetic Study", "type": "OTHER" } ], "intervention_types": [ "BIOLOGICAL", "OTHER" ], "sponsor": "M.D. Anderson Cancer Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "FEMALE", "summary": "18 Years and older · Female only" }, "enrollment_count": 26, "start_date": "2018-09-21", "completion_date": "2024-11-11", "has_results": false, "last_update_posted_date": "2025-05-22", "last_synced_at": "2026-07-24T09:18:03.410Z", "location_count": 1, "location_summary": "Houston, Texas", "locations": [ { "city": "Houston", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT03508570" }, { "nct_id": "NCT03426865", "title": "Role of Axumin PET Scan in Germ Cell Tumor", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Testis Cancer", "Germ Cell Tumor", "Testicular Cancer", "Germ Cell Tumor of Testis", "Germ Cell Tumor, Testicular, Childhood", "Testicular Neoplasms", "Testicular Germ Cell Tumor", "Testicular Yolk Sac Tumor", "Testicular Choriocarcinoma", "Testicular Diseases", "Germ Cell Cancer Metastatic", "Germ Cell Neoplasm of Retroperitoneum", "Germ Cell Cancer, Nos" ], "interventions": [ { "name": "Axumin PET scan", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of Texas Southwestern Medical Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "MALE", "summary": "18 Years and older · Male only" }, "enrollment_count": 10, "start_date": "2018-03-01", "completion_date": "2023-06-01", "has_results": false, "last_update_posted_date": "2025-08-11", "last_synced_at": "2026-07-24T09:18:03.410Z", "location_count": 1, "location_summary": "Dallas, Texas", "locations": [ { "city": "Dallas", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT03426865" }, { "nct_id": "NCT04073706", "title": "Sentinel Node Biopsy in Endometrial Cancer", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Endometrial Cancer Stage I", "Sentinel Lymph Node", "Surgery" ], "interventions": [ { "name": "TH BSO with SNB Note: If participants (≤45yo), Grade 1 endometrial adenocarcinoma with myometrial invasion <50%, wish to retain their ovaries a BSO may be omitted", "type": "PROCEDURE" }, { "name": "TH BSO without retroperitoneal node dissection Note: If participants (≤45yo), Grade 1 endometrial adenocarcinoma with myometrial invasion <50%, wish to retain their ovaries a BSO may be omitted", "type": "PROCEDURE" } ], "intervention_types": [ "PROCEDURE" ], "sponsor": "Queensland Centre for Gynaecological Cancer", "sponsor_class": "OTHER_GOV", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "FEMALE", "summary": "18 Years and older · Female only" }, "enrollment_count": 760, "start_date": "2021-01-18", "completion_date": "2031-02", "has_results": false, "last_update_posted_date": "2026-01-30", "last_synced_at": "2026-07-24T09:18:03.410Z", "location_count": 1, "location_summary": "Houston, Texas", "locations": [ { "city": "Houston", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT04073706" }, { "nct_id": "NCT02705638", "title": "Treatment of IgG4-Related Disease With Revlimid and Rituximab", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Immunoglobulin G Subclass 4 Related Disease", "IgG4-related Disease", "Autoimmune Pancreatitis", "IgG4-related Sclerosing Cholangitis", "Retroperitoneal Fibrosis" ], "interventions": [ { "name": "Rituximab", "type": "DRUG" }, { "name": "Lenalidomide", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Mayo Clinic", "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": "2016-04", "completion_date": "2019-04", "has_results": false, "last_update_posted_date": "2019-07-08", "last_synced_at": "2026-07-24T09:18:03.410Z", "location_count": 1, "location_summary": "Rochester, Minnesota", "locations": [ { "city": "Rochester", "state": "Minnesota" } ], "official_url": "https://clinicaltrials.gov/study/NCT02705638" }, { "nct_id": "NCT04420975", "title": "Nivolumab and BO-112 Before Surgery for the Treatment of Resectable Soft Tissue Sarcoma", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Leiomyosarcoma", "Malignant Peripheral Nerve Sheath Tumor", "Myxofibrosarcoma", "Pleomorphic Rhabdomyosarcoma", "Resectable Dedifferentiated Liposarcoma", "Resectable Soft Tissue Sarcoma", "Resectable Undifferentiated Pleomorphic Sarcoma", "Soft Tissue Fibrosarcoma", "Spindle Cell Sarcoma", "Stage I Retroperitoneal Sarcoma AJCC (American Joint Committee on Cancer) v8", "Stage I Soft Tissue Sarcoma of the Trunk and Extremities AJCC v8", "Stage IA Retroperitoneal Sarcoma AJCC v8", "Stage IA Soft Tissue Sarcoma of the Trunk and Extremities AJCC v8", "Stage IB Retroperitoneal Sarcoma AJCC v8", "Stage IB Soft Tissue Sarcoma of the Trunk and Extremities AJCC v8", "Stage II Retroperitoneal Sarcoma AJCC v8", "Stage II Soft Tissue Sarcoma of the Trunk and Extremities AJCC v8", "Stage III Retroperitoneal Sarcoma AJCC v8", "Stage III Soft Tissue Sarcoma of the Trunk and Extremities AJCC v8", "Stage IIIA Retroperitoneal Sarcoma AJCC v8", "Stage IIIA Soft Tissue Sarcoma of the Trunk and Extremities AJCC v8", "Stage IIIB Retroperitoneal Sarcoma AJCC v8", "Stage IIIB Soft Tissue Sarcoma of the Trunk and Extremities AJCC v8", "Storiform-Pleomorphic Malignant Fibrous Histiocytoma", "Synovial Sarcoma", "Undifferentiated High Grade Pleomorphic Sarcoma of Bone", "Undifferentiated Pleomorphic Sarcoma", "Undifferentiated Pleomorphic Sarcoma With Osteoclast-Like Giant Cells", "Undifferentiated Pleomorphic Sarcoma, Inflammatory Variant", "Undifferentiated Spindle Cell Sarcoma" ], "interventions": [ { "name": "Definitive Surgical Resection", "type": "PROCEDURE" }, { "name": "Nanoplexed Poly I:C BO-112", "type": "BIOLOGICAL" }, { "name": "Nivolumab", "type": "BIOLOGICAL" }, { "name": "Radiation Therapy", "type": "RADIATION" } ], "intervention_types": [ "PROCEDURE", "BIOLOGICAL", "RADIATION" ], "sponsor": "Jonsson Comprehensive 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": 14, "start_date": "2020-10-14", "completion_date": "2028-01-31", "has_results": false, "last_update_posted_date": "2026-03-10", "last_synced_at": "2026-07-24T09:18:03.410Z", "location_count": 1, "location_summary": "Los Angeles, California", "locations": [ { "city": "Los Angeles", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT04420975" }, { "nct_id": "NCT02384473", "title": "Real-Time Contrast-Enhanced Ultrasonography and Shear Wave Elastography in Predicting Treatment Response in Patients With Soft Tissue Sarcoma", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "EARLY_PHASE1" ], "conditions": [ "Adult Soft Tissue Sarcoma", "Bone Sarcoma", "Retroperitoneal Sarcoma" ], "interventions": [ { "name": "Real-Time CEUS", "type": "PROCEDURE" }, { "name": "SWE", "type": "PROCEDURE" }, { "name": "Definity Suspension for Injection", "type": "DRUG" }, { "name": "Philips Shear Wave Elastography", "type": "DEVICE" } ], "intervention_types": [ "PROCEDURE", "DRUG", "DEVICE" ], "sponsor": "University of Southern California", "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": "2014-12-24", "completion_date": "2024-01-19", "has_results": false, "last_update_posted_date": "2024-01-23", "last_synced_at": "2026-07-24T09:18:03.410Z", "location_count": 1, "location_summary": "Los Angeles, California", "locations": [ { "city": "Los Angeles", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT02384473" } ] }