Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2026-03-25'}, 'interventionBrowseModule': {'meshes': [{'id': 'D000077594', 'term': 'Nivolumab'}, {'id': 'D000074324', 'term': 'Ipilimumab'}, {'id': 'C531958', 'term': 'lenvatinib'}], 'ancestors': [{'id': 'D061067', 'term': 'Antibodies, Monoclonal, Humanized'}, {'id': 'D000911', 'term': 'Antibodies, Monoclonal'}, {'id': 'D000906', 'term': 'Antibodies'}, {'id': 'D007136', 'term': 'Immunoglobulins'}, {'id': 'D007162', 'term': 'Immunoproteins'}, {'id': 'D001798', 'term': 'Blood Proteins'}, {'id': 'D011506', 'term': 'Proteins'}, {'id': 'D000602', 'term': 'Amino Acids, Peptides, and Proteins'}, {'id': 'D012712', 'term': 'Serum Globulins'}, {'id': 'D005916', 'term': 'Globulins'}]}}, 'documentSection': {'largeDocumentModule': {'largeDocs': [{'date': '2026-01-20', 'size': 248397, 'label': 'Study Protocol and Statistical Analysis Plan', 'hasIcf': False, 'hasSap': True, 'filename': 'Prot_SAP_000.pdf', 'typeAbbrev': 'Prot_SAP', 'uploadDate': '2026-03-05T10:16', 'hasProtocol': True}]}}, 'protocolSection': {'designModule': {'phases': ['PHASE1', 'PHASE2'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'NA', 'maskingInfo': {'masking': 'NONE'}, 'primaryPurpose': 'TREATMENT', 'interventionModel': 'SINGLE_GROUP'}, 'enrollmentInfo': {'type': 'ESTIMATED', 'count': 33}}, 'statusModule': {'overallStatus': 'RECRUITING', 'startDateStruct': {'date': '2026-02', 'type': 'ESTIMATED'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2026-02', 'completionDateStruct': {'date': '2028-06-30', 'type': 'ESTIMATED'}, 'lastUpdateSubmitDate': '2026-03-15', 'studyFirstSubmitDate': '2026-02-27', 'studyFirstSubmitQcDate': '2026-03-15', 'lastUpdatePostDateStruct': {'date': '2026-03-19', 'type': 'ACTUAL'}, 'studyFirstPostDateStruct': {'date': '2026-03-19', 'type': 'ACTUAL'}, 'primaryCompletionDateStruct': {'date': '2026-06-30', 'type': 'ESTIMATED'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Incidence of dose-limiting toxicity (DLT) of the quadruple regimen (Y90-SIRT plus nivolumab, ipilimumab, lenvatinib)', 'timeFrame': 'Up to 4 treatment cycles (each cycle is 3 weeks)'}, {'measure': 'Objective response rate (ORR) assessed by both iRECIST and mRECIST criteria', 'timeFrame': '24 months'}]}, 'oversightModule': {'isFdaRegulatedDrug': False, 'isFdaRegulatedDevice': False}, 'conditionsModule': {'keywords': ['unresectable hepatocellular carcinoma', 'Yttrium-90 microsphere selective internal radiation therapy (Y90-SIRT)', 'nivolumab', 'pilimumab', 'lenvatinib', 'phase Ib/II study'], 'conditions': ['Unresectable Hepatocellular Carcinoma']}, 'referencesModule': {'references': [{'pmid': '41734362', 'type': 'BACKGROUND', 'citation': 'Zhu HD, Fan WJ, Zhao C, Wang S, Li YL, Jin ZC, Zhang ZW, Guo JH, Cheng HT, Zhang Q, Lu J, Zeng YY, Lv WF, Xu H, Shao HB, Xu WG, Zhao XY, Gu SZ, Lin HL, Zheng WH, Piao LZ, Song YS, Zhao JB, Wang YC, Hou ZG, Sun Y, Guan N, Huang M, Yang WZ, Ji JS, Teng GJ. Transarterial Chemoembolization Combined With Camrelizumab and Rivoceranib for Unresectable Hepatocellular Carcinoma (CHANCE2005/CARES-005): A Randomized Phase II Trial. J Clin Oncol. 2026 Feb 24:JCO2501796. doi: 10.1200/JCO-25-01796. Online ahead of print.'}, {'pmid': '23741070', 'type': 'BACKGROUND', 'citation': 'Feng Y, Roy A, Masson E, Chen TT, Humphrey R, Weber JS. Exposure-response relationships of the efficacy and safety of ipilimumab in patients with advanced melanoma. Clin Cancer Res. 2013 Jul 15;19(14):3977-86. doi: 10.1158/1078-0432.CCR-12-3243. Epub 2013 Jun 5.'}, {'pmid': '25754329', 'type': 'BACKGROUND', 'citation': 'Twyman-Saint Victor C, Rech AJ, Maity A, Rengan R, Pauken KE, Stelekati E, Benci JL, Xu B, Dada H, Odorizzi PM, Herati RS, Mansfield KD, Patsch D, Amaravadi RK, Schuchter LM, Ishwaran H, Mick R, Pryma DA, Xu X, Feldman MD, Gangadhar TC, Hahn SM, Wherry EJ, Vonderheide RH, Minn AJ. Radiation and dual checkpoint blockade activate non-redundant immune mechanisms in cancer. Nature. 2015 Apr 16;520(7547):373-7. doi: 10.1038/nature14292. Epub 2015 Mar 9.'}, {'type': 'BACKGROUND', 'citation': 'Kudo et al. HCC. Study 117. Phase 1b of lenvatinib + NIVO in unresectable HCC. ASCOGI 2020. Poster'}, {'type': 'BACKGROUND', 'citation': 'Agrawal et al. Journal for ImmunoTherapy of Cancer (2016) 4:72'}, {'pmid': '31422022', 'type': 'BACKGROUND', 'citation': 'Zhan C, Ruohoniemi D, Shanbhogue KP, Wei J, Welling TH, Gu P, Park JS, Dagher NN, Taslakian B, Hickey RM. Safety of Combined Yttrium-90 Radioembolization and Immune Checkpoint Inhibitor Immunotherapy for Hepatocellular Carcinoma. J Vasc Interv Radiol. 2020 Jan;31(1):25-34. doi: 10.1016/j.jvir.2019.05.023. Epub 2019 Aug 14.'}, {'pmid': '38191073', 'type': 'BACKGROUND', 'citation': 'Mejait A, Roux C, Soret M, Larrey E, Wagner M, Bijot JC, Lussey-Lepoutre C, Thabut D, Goumard C, Maksud P, Allaire M. Enhanced therapeutic outcomes with atezolizumab-bevacizumab and SIRT combination compared to SIRT alone in unresectable HCC: A promising approach for improved survival. Clin Res Hepatol Gastroenterol. 2024 Feb;48(2):102282. doi: 10.1016/j.clinre.2024.102282. Epub 2024 Jan 6.'}, {'type': 'BACKGROUND', 'citation': 'DiFederico,A.,Rizzo,A.,Carloni,R.,DeGiglio,A.,Bruno,R.,Ricci,D.,&Brandi,G.(2022).Atezolizumab-bevacizumabplusY-90TAREforthetreatmentofhepatocellularcarcinoma:preclinicalrationaleandongoingclinicaltrials.Expertopiniononinvestigationaldrugs,'}, {'pmid': '32075608', 'type': 'BACKGROUND', 'citation': 'Craciun L, de Wind R, Demetter P, Lucidi V, Bohlok A, Michiels S, Bouazza F, Vouche M, Tancredi I, Verset G, Garaud S, Naveaux C, Galdon MG, Gallo KW, Hendlisz A, Derijckere ID, Flamen P, Larsimont D, Donckier V. Retrospective analysis of the immunogenic effects of intra-arterial locoregional therapies in hepatocellular carcinoma: a rationale for combining selective internal radiation therapy (SIRT) and immunotherapy. BMC Cancer. 2020 Feb 19;20(1):135. doi: 10.1186/s12885-020-6613-1.'}, {'pmid': '26612692', 'type': 'BACKGROUND', 'citation': 'Grass GD, Krishna N, Kim S. The immune mechanisms of abscopal effect in radiation therapy. Curr Probl Cancer. 2016 Jan-Feb;40(1):10-24. doi: 10.1016/j.currproblcancer.2015.10.003. Epub 2015 Nov 21.'}, {'pmid': '30397353', 'type': 'BACKGROUND', 'citation': 'Formenti SC, Rudqvist NP, Golden E, Cooper B, Wennerberg E, Lhuillier C, Vanpouille-Box C, Friedman K, Ferrari de Andrade L, Wucherpfennig KW, Heguy A, Imai N, Gnjatic S, Emerson RO, Zhou XK, Zhang T, Chachoua A, Demaria S. Radiotherapy induces responses of lung cancer to CTLA-4 blockade. Nat Med. 2018 Dec;24(12):1845-1851. doi: 10.1038/s41591-018-0232-2. Epub 2018 Nov 5.'}, {'type': 'BACKGROUND', 'citation': 'Jia Fan 2025 ESMO poster 1495'}, {'pmid': '40349714', 'type': 'BACKGROUND', 'citation': 'Yau T, Galle PR, Decaens T, Sangro B, Qin S, da Fonseca LG, Karachiwala H, Blanc JF, Park JW, Gane E, Pinter M, Pena AM, Ikeda M, Tai D, Santoro A, Pizarro G, Chiu CF, Schenker M, He A, Chon HJ, Wojcik-Tomaszewska J, Verset G, Wang QQ, Stromko C, Neely J, Singh P, Jimenez Exposito MJ, Kudo M; CheckMate 9DW investigators. Nivolumab plus ipilimumab versus lenvatinib or sorafenib as first-line treatment for unresectable hepatocellular carcinoma (CheckMate 9DW): an open-label, randomised, phase 3 trial. Lancet. 2025 May 24;405(10492):1851-1864. doi: 10.1016/S0140-6736(25)00403-9. Epub 2025 May 8.'}, {'pmid': '39896190', 'type': 'BACKGROUND', 'citation': 'Lu W, Zhang T, Xia F, Huang X, Gao F. Transarterial radioembolization versus chemoembolization for hepatocellular carcinoma: a meta-analysis. Front Oncol. 2025 Jan 17;14:1511210. doi: 10.3389/fonc.2024.1511210. eCollection 2024.'}, {'type': 'BACKGROUND', 'citation': '中国医师协会介入医师分会临床诊疗指南专委会, 中国研究型医院学会肝胆胰外科专业委员会. 钇-90微球选择性内放射治疗肝脏恶性肿瘤规范化操作专家共识(2024版)[J] . 中华医学杂志, 2024, 104(7) : 486-498.'}, {'pmid': '39798578', 'type': 'BACKGROUND', 'citation': 'Kudo M, Ren Z, Guo Y, Han G, Lin H, Zheng J, Ogasawara S, Kim JH, Zhao H, Li C, Madoff DC, Ghobrial RM, Kawaoka T, Gerolami R, Ikeda M, Kumada H, El-Khoueiry AB, Vogel A, Peng X, Mody K, Dutcus C, Dubrovsky L, Siegel AB, Finn RS, Llovet JM; LEAP-012 investigators. Transarterial chemoembolisation combined with lenvatinib plus pembrolizumab versus dual placebo for unresectable, non-metastatic hepatocellular carcinoma (LEAP-012): a multicentre, randomised, double-blind, phase 3 study. Lancet. 2025 Jan 18;405(10474):203-215. doi: 10.1016/S0140-6736(24)02575-3. Epub 2025 Jan 8.'}, {'pmid': '39798579', 'type': 'BACKGROUND', 'citation': 'Sangro B, Kudo M, Erinjeri JP, Qin S, Ren Z, Chan SL, Arai Y, Heo J, Mai A, Escobar J, Lopez Chuken YA, Yoon JH, Tak WY, Breder VV, Suttichaimongkol T, Bouattour M, Lin SM, Peron JM, Nguyen QT, Yan L, Chiu CF, Santos FA, Veluvolu A, Thungappa SC, Matos M, Zotkiewicz M, Udoye SI, Kurland JF, Cohen GJ, Lencioni R; EMERALD-1 Investigators. Durvalumab with or without bevacizumab with transarterial chemoembolisation in hepatocellular carcinoma (EMERALD-1): a multiregional, randomised, double-blind, placebo-controlled, phase 3 study. Lancet. 2025 Jan 18;405(10474):216-232. doi: 10.1016/S0140-6736(24)02551-0. Epub 2025 Jan 8.'}], 'seeAlsoLinks': [{'url': 'https://cris.unibo.it/handle/11585/955834', 'label': 'CRIS'}]}, 'descriptionModule': {'briefSummary': 'This clinical trial was designed to evaluate the safety and efficacy of Y90-SIRT combined with nivolumab, ipilimumab, and lenvatinib in patients with unresectable HCC. In addition to assessing short-term efficacy endpoints, such as ORR and PFS, this trial places particular emphasis on the OS benefit for patients. This study is therefore both novel and innovative.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['ADULT', 'OLDER_ADULT'], 'maximumAge': '80 Years', 'minimumAge': '18 Years', 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\n1. HCC confirmed as unresectable by imaging or histology, or patients who refuse surgery. Eligible for Y90-SIRT, with no evidence of extrahepatic disease on any available imaging. Lymph node involvement is permitted. The term "unresectable hepatocellular carcinoma" refers to a clinical state in which radical surgical resection is precluded because the tumor extent or an inadequate anticipated future liver remnant would prevent R0 removal, or because the procedural risk is prohibitively high, and where surgical intervention is not expected to yield a survival advantage over non-surgical therapies.\n2. Aged between 18 and 80 years at the time of enrollment\n3. Participants with Child-Pugh class A.\n4. Participants with an ECOG performance status of 0 or 1 at the time of enrollment\n5. Participants with a lung dose threshold of 30 Gy for yttrium-90 microspheres (each treatment dose ≤ 30 Gy), and an anticipated future liver remnant volume (FLRV) ≥ 30% of the total liver volume.\n6. Participants with one or more measurable lesions; for those with segmental or right anterior/posterior portal vein invasion (Vp1/Vp2), the disease is confined to a single lobe and suitable for Y90 microsphere treatment.\n7. If the patient is co-infected with hepatitis B virus (HBV) or hepatitis C virus (HCV), the following criteria must be met: HBV or HCV viral levels should be monitored during study participation. Patients with detectable hepatitis B surface antigen (HBsAg) or HBV DNA should have HBV DNA \\< 100 IU/ml and be managed according to local treatment guidelines. Most patients with advanced HCC and HCV have not received treatment for HCV infection. However, if antiviral therapy has been completed prior to the first administration of study drugs, these patients are considered eligible for inclusion.\n8. No prior systemic therapy or transarterial radioembolization (Y90 glass microsphere TARE).\n9. No active autoimmune disease and no history of chronic or recurrent autoimmune disease.\n10. Adequate hematological, liver, and renal function as follows: (1) Absolute neutrophil count ≥ 1,500/mm³ (2) Hemoglobin level ≥ 9.0 g/dL (3) Platelet count ≥ 75,000/mm³ (4) Total bilirubin ≤ 1.5 × ULN (5) AST ≤ 2.5 × ULN (6) ALT ≤ 2.5 × ULN (7) International normalized ratio (INR) ≤ 1.25 (8) Albumin ≥ 31 g/L (9) 24-hour urine collection creatinine clearance (CL) \\> 40 mL/min or calculated creatinine clearance (CL) \\> 40 mL/min.\n11. Not pregnant and no intention to conceive before or during treatment.\n12. Written informed consent from the patient.\n13. Expected survival of at least 12 weeks.\n\nExclusion Criteria:\n\n1. Diffuse HCC or presence of vascular invasion or extrahepatic spread, with the following exceptions: invasion of segmental portal vein or hepatic vein.\n2. Patients with Child-Pugh class C cirrhosis.\n3. Any contraindication to hepatic arterial embolization: Known hepatic arterial reflux; known portosystemic shunt; coagulopathy (platelet count \\< 50 × 109/L, INR \\> 1.5); renal failure/insufficiency requiring hemodialysis or peritoneal dialysis; known severe arteriosclerosis; complete thrombosis or complete invasion of the main portal vein.\n4. History of heart disease: congestive heart failure \\> New York Heart Association (NYHA) class II; active coronary artery disease (CAD) (myocardial infarction ≥ 6 months prior to study initiation is permitted); arrhythmias that are difficult to control with antiarrhythmic drugs or require a pacemaker (NCI-CTCAE v5.0 \\> grade 2); uncontrolled hypertension; clinically significant gastrointestinal bleeding within 4 weeks prior to initiation of study drugs.\n5. Thrombotic or embolic events, such as cerebrovascular accident (including transient ischemic attack), deep vein thrombosis, or pulmonary embolism, occurring within 6 months prior to the first administration of study drug, except for segmental portal vein thrombosis.\n6. Receipt of systemic anticancer therapy, radiotherapy, endocrine therapy, immunotherapy, or other investigational drugs within 4 weeks prior to study initiation.\n7. Current or prior use of immunosuppressive drugs within 28 days before the first administration of nivolumab or ipilimumab. Exceptions to this criterion include: intranasal, inhaled, topical steroids or local steroid injections (e.g., intra-articular injection); physiological doses of systemic corticosteroids not exceeding 10 mg/day of prednisone or equivalent; steroids used for the prevention of allergic reactions (e.g., premedication for CT scan).\n8. Receipt of live attenuated vaccines within 30 days prior to the first administration of study drug (IP). Note: If the patient is enrolled, live vaccines should not be administered during the study drug treatment period and within 30 days after the last dose of the study drug.\n9. Major surgery within 4 weeks prior to study initiation, and the patient must have recovered from the effects of major surgery.\n10. Patients with a second primary malignancy, apart from adequately treated basal cell carcinoma of the skin or carcinoma in situ of the cervix, unless disease-free for more than 3 years.\n11. Uncontrolled comorbidities, including but not limited to persistent or active infection, symptomatic congestive heart failure, uncontrolled hypertension, unstable angina, arrhythmia, interstitial lung disease, severe chronic gastrointestinal disease associated with diarrhea, or psychiatric/social conditions that limit compliance with study requirements, significantly increase the risk of adverse events, or impair the patient\'s ability to provide written informed consent.\n12. Active infections, including tuberculosis (clinical assessment including medical history, physical examination, and imaging, as well as tuberculosis testing according to local practice), hepatitis B (known positive HBV surface antigen \\[HBsAg\\]), and hepatitis C. Patients with past or resolved HBV infection (defined as presence of hepatitis B core antibody \\[anti-HBc\\] and absence of HBsAg) are eligible. Patients who are HCV antibody-positive are eligible only if HCV RNA measured by PCR is negative.\n13. History of allogeneic organ transplantation.\n14. Psychiatric disorders or altered mental status that interfere with understanding the informed consent process and/or compliance with the study protocol.\n15. Symptomatic brain metastases. If symptoms are present, imaging is required to confirm the absence of brain metastases.\n16. Pregnant or breastfeeding women.\n17. Immunocompromised patients, such as those known to be serologically positive for human immunodeficiency virus (HIV).\n18. Active or previously documented autoimmune or inflammatory diseases (including inflammatory bowel disease \\[such as colitis or Crohn\'s disease\\], diverticulitis \\[excluding diverticulosis\\], systemic lupus erythematosus, sarcoidosis, or Wegener\'s granulomatosis \\[granulomatosis with polyangiitis\\], Graves\' disease, rheumatoid arthritis, hypophysitis, uveitis, among others).\n19. Known allergy or hypersensitivity to any study drug or its components.\n20. Currently participating in or previously participated in a study involving an investigational drug, or use of an investigational device within 4 weeks prior to the first administration of study treatment.'}, 'identificationModule': {'nctId': 'NCT07482059', 'briefTitle': 'A Multicenter Clinical Study of Combined Therapy for Unresectable Hepatocellular Carcinoma', 'organization': {'class': 'OTHER', 'fullName': 'West China Hospital'}, 'officialTitle': 'A Multicenter Phase Ib/II Clinical Study on the Safety and Efficacy of Selective Internal Radiation Therapy (SIRT) With Yttrium-90 Microspheres in Combination With Nivolumab, Ipilimumab, and Lenvatinib in Patients With Unresectable Hepatocellular Carcinoma', 'orgStudyIdInfo': {'id': '20252727'}}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': 'Yttrium-90 microspheres in combination with nivolumab, ipilimumab, and lenvatinib', 'description': 'The phase Ib portion of the trial explores the incidence of dose-limiting toxicity (DLT) in the quadruple therapeutic regimen. Three weeks after receiving Y90-SIRT, the patients are assigned to one of three dose exploration cohorts: (1) nivolumab 1 mg/kg IV every 3 weeks (Q3W) + ipilimumab 1 mg/kg IV Q3W for up to 4 cycles; (2) nivolumab 1 mg/kg IV Q3W + ipilimumab 2 mg/kg IV Q3W for up to 4 cycles; (3) nivolumab 1 mg/kg IV Q3W + ipilimumab 3 mg/kg IV Q3W for up to 4 cycles. After completion of ipilimumab administration, nivolumab is continued at 480 mg IV every 4 weeks (Q4W) until disease progression, unacceptable toxicity, withdrawal of informed consent, or a maximum treatment duration of two years. Lenvatinib is then administered after discontinuation of ipilimumab, in combination with nivolumab, at a dose of 8 mg (body weight \\<60 kg) or 12 mg (body weight \\>60 kg) orally once daily (PO QD), taken at a fixed time each day, with or without food.', 'interventionNames': ['Drug: ttrium-90 microspheres in combination with nivolumab, ipilimumab, and lenvatinib in patients with unresectable hepatocellular carcinoma']}], 'interventions': [{'name': 'ttrium-90 microspheres in combination with nivolumab, ipilimumab, and lenvatinib in patients with unresectable hepatocellular carcinoma', 'type': 'DRUG', 'description': 'The phase Ib portion of the trial explores the incidence of dose-limiting toxicity (DLT) in the quadruple therapeutic regimen. Three weeks after receiving Y90-SIRT, the patients are assigned to one of three dose exploration cohorts: (1) nivolumab 1 mg/kg IV every 3 weeks (Q3W) + ipilimumab 1 mg/kg IV Q3W for up to 4 cycles; (2) nivolumab 1 mg/kg IV Q3W + ipilimumab 2 mg/kg IV Q3W for up to 4 cycles; (3) nivolumab 1 mg/kg IV Q3W + ipilimumab 3 mg/kg IV Q3W for up to 4 cycles. After completion of ipilimumab administration, nivolumab is continued at 480 mg IV every 4 weeks (Q4W) until disease progression, unacceptable toxicity, withdrawal of informed consent, or a maximum treatment duration of two years. Lenvatinib is then administered after discontinuation of ipilimumab, in combination with nivolumab, at a dose of 8 mg (body weight \\<60 kg) or 12 mg (body weight \\>60 kg) orally once daily (PO QD), taken at a fixed time each day, with or without food.', 'armGroupLabels': ['Yttrium-90 microspheres in combination with nivolumab, ipilimumab, and lenvatinib']}]}, 'contactsLocationsModule': {'locations': [{'zip': '610041', 'city': 'Chengdu', 'state': 'Sichuan', 'status': 'RECRUITING', 'country': 'China', 'contacts': [{'name': 'Chang Liu, 医生', 'role': 'CONTACT', 'email': 'drliuchang@wchscu.cn', 'phone': '+86 189 8060 6382'}, {'name': 'Ruihong Dai, 医生', 'role': 'CONTACT', 'email': '760173632@qq.com', 'phone': '+86 18715779637'}], 'facility': 'Study Chair Liu Chang , West China Hospital', 'geoPoint': {'lat': 30.66667, 'lon': 104.06667}}], 'centralContacts': [{'name': 'Chang Liu, 医生', 'role': 'CONTACT', 'email': 'drliuchang@wchscu.cn', 'phone': '+86 189 8060 6382'}, {'name': 'Ruihong Dai, 医生', 'role': 'CONTACT', 'email': '760173632@qq.com', 'phone': '18715779637'}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'West China Hospital', 'class': 'OTHER'}, 'responsibleParty': {'type': 'PRINCIPAL_INVESTIGATOR', 'investigatorTitle': 'Doctor of Surgery', 'investigatorFullName': 'LiuChang', 'investigatorAffiliation': 'West China Hospital'}}}}