Ignite Creation Date:
2025-12-24 @ 11:40 PM
Ignite Modification Date:
2025-12-31 @ 11:55 AM
Study NCT ID:
NCT05277051
Status:
RECRUITING
Last Update Posted:
2025-12-19
First Post:
2022-03-03
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
First-Time-in-Human Study of GSK4381562 in Participants With Advanced Solid Tumors
Sponsor:
Organization:
Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D009369', 'term': 'Neoplasms'}, {'id': 'D009362', 'term': 'Neoplasm Metastasis'}, {'id': 'D000077195', 'term': 'Squamous Cell Carcinoma of Head and Neck'}, {'id': 'D002289', 'term': 'Carcinoma, Non-Small-Cell Lung'}, {'id': 'D001943', 'term': 'Breast Neoplasms'}, {'id': 'D002292', 'term': 'Carcinoma, Renal Cell'}, {'id': 'D013274', 'term': 'Stomach Neoplasms'}, {'id': 'D015179', 'term': 'Colorectal Neoplasms'}, {'id': 'D016889', 'term': 'Endometrial Neoplasms'}], 'ancestors': [{'id': 'D009385', 'term': 'Neoplastic Processes'}, {'id': 'D010335', 'term': 'Pathologic Processes'}, {'id': 'D013568', 'term': 'Pathological Conditions, Signs and Symptoms'}, {'id': 'D002294', 'term': 'Carcinoma, Squamous Cell'}, {'id': 'D002277', 'term': 'Carcinoma'}, {'id': 'D009375', 'term': 'Neoplasms, Glandular and Epithelial'}, {'id': 'D009370', 'term': 'Neoplasms by Histologic Type'}, {'id': 'D006258', 'term': 'Head and Neck Neoplasms'}, {'id': 'D009371', 'term': 'Neoplasms by Site'}, {'id': 'D002283', 'term': 'Carcinoma, Bronchogenic'}, {'id': 'D001984', 'term': 'Bronchial Neoplasms'}, {'id': 'D008175', 'term': 'Lung Neoplasms'}, {'id': 'D012142', 'term': 'Respiratory Tract Neoplasms'}, {'id': 'D013899', 'term': 'Thoracic Neoplasms'}, {'id': 'D008171', 'term': 'Lung Diseases'}, {'id': 'D012140', 'term': 'Respiratory Tract Diseases'}, {'id': 'D001941', 'term': 'Breast Diseases'}, {'id': 'D012871', 'term': 'Skin Diseases'}, {'id': 'D017437', 'term': 'Skin and Connective Tissue Diseases'}, {'id': 'D000230', 'term': 'Adenocarcinoma'}, {'id': 'D007680', 'term': 'Kidney Neoplasms'}, {'id': 'D014571', 'term': 'Urologic Neoplasms'}, {'id': 'D014565', 'term': 'Urogenital Neoplasms'}, {'id': 'D052776', 'term': 'Female Urogenital Diseases'}, {'id': 'D005261', 'term': 'Female Urogenital Diseases and Pregnancy Complications'}, {'id': 'D000091642', 'term': 'Urogenital Diseases'}, {'id': 'D007674', 'term': 'Kidney Diseases'}, {'id': 'D014570', 'term': 'Urologic Diseases'}, {'id': 'D052801', 'term': 'Male Urogenital Diseases'}, {'id': 'D005770', 'term': 'Gastrointestinal Neoplasms'}, {'id': 'D004067', 'term': 'Digestive System Neoplasms'}, {'id': 'D004066', 'term': 'Digestive System Diseases'}, {'id': 'D005767', 'term': 'Gastrointestinal Diseases'}, {'id': 'D013272', 'term': 'Stomach Diseases'}, {'id': 'D007414', 'term': 'Intestinal Neoplasms'}, {'id': 'D003108', 'term': 'Colonic Diseases'}, {'id': 'D007410', 'term': 'Intestinal Diseases'}, {'id': 'D012002', 'term': 'Rectal Diseases'}, {'id': 'D014594', 'term': 'Uterine Neoplasms'}, {'id': 'D005833', 'term': 'Genital Neoplasms, Female'}, {'id': 'D014591', 'term': 'Uterine Diseases'}, {'id': 'D005831', 'term': 'Genital Diseases, Female'}, {'id': 'D000091662', 'term': 'Genital Diseases'}]}, 'interventionBrowseModule': {'meshes': [{'id': 'C000719628', 'term': 'dostarlimab'}]}}, 'protocolSection': {'designModule': {'phases': ['PHASE1'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'NON_RANDOMIZED', 'maskingInfo': {'masking': 'NONE'}, 'primaryPurpose': 'TREATMENT', 'interventionModel': 'SEQUENTIAL', 'interventionModelDescription': '4 Dose Escalation arms (Arm A: remzistotug alone; Arm B: remzistotug plus dostarlimab; Arm C: remzistotug plus dostarlimab plus belrestotug); Arm I: GSK5764227 plus dostarlimab) and 5 other arms, Arm D (dostarlimab plus belrestotug; Arm E (dostarlimab plus belrestotug plus remzistotug Arm F (dostarlimab plus belrestotug plus nelistotug; Arm G (China cohort: dostarlimab);'}, 'enrollmentInfo': {'type': 'ESTIMATED', 'count': 158}}, 'statusModule': {'overallStatus': 'RECRUITING', 'startDateStruct': {'date': '2022-03-22', 'type': 'ACTUAL'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2025-12', 'completionDateStruct': {'date': '2027-08-31', 'type': 'ESTIMATED'}, 'lastUpdateSubmitDate': '2025-12-12', 'studyFirstSubmitDate': '2022-03-03', 'studyFirstSubmitQcDate': '2022-03-03', 'lastUpdatePostDateStruct': {'date': '2025-12-19', 'type': 'ESTIMATED'}, 'studyFirstPostDateStruct': {'date': '2022-03-14', 'type': 'ACTUAL'}, 'primaryCompletionDateStruct': {'date': '2027-08-31', 'type': 'ESTIMATED'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Arms A, B, C, I: Number of Participants with dose-limiting toxicities (DLTs)', 'timeFrame': 'Up to 21 days'}, {'measure': 'Number of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs)', 'timeFrame': 'Up to 27 months'}], 'secondaryOutcomes': [{'measure': 'Number of Participants With Clinically Significant Changes in Laboratory Parameters, Electrocardiogram (ECG) and Vital Signs', 'timeFrame': 'Up to 24 months'}, {'measure': 'Number of Participants With Dose Reductions or Delays', 'timeFrame': 'Up to 24 months'}, {'measure': 'Number of Participants With Withdrawals due to AEs', 'timeFrame': 'Up to 27 months', 'description': 'Number of participants with adverse events leading to permanent discontinuation of study treatment or withdrawal from study by overall frequency will be assessed.'}, {'measure': 'Overall Response Rate (ORR)', 'timeFrame': 'Up to 24 months', 'description': 'Objective response rate will be calculated as per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 criteria. It is defined as the percentage of participants with a best overall confirmed complete response (CR) or partial response (PR) at any time as per disease-specific criteria.'}, {'measure': 'Number of Participants With Positive Antidrug Antibodies (ADA) to remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Titres of ADA to remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Number of Participants With Positive ADA to Dostarlimab', 'timeFrame': 'Up to 27 months'}, {'measure': 'Titers of ADA to Dostarlimab', 'timeFrame': 'Up to 27 months'}, {'measure': 'Number of Participants With Positive ADA to belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Titers of ADA to belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Number of Participants With Positive ADA to nelistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Titers of ADA to nelistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Number of Participants With Positive ADA to GSK5764227', 'timeFrame': 'Up to 27 months'}, {'measure': 'Titers of ADA to GSK5764227', 'timeFrame': 'Up to 27 months'}, {'measure': 'Serum Concentrations of remzistotug', 'timeFrame': 'Up to 4 months'}, {'measure': 'Serum Concentrations of dostarlimab', 'timeFrame': 'Up to 4 months'}, {'measure': 'Serum Concentrations of belrestotug', 'timeFrame': 'Up to 4 months'}, {'measure': 'Serum Concentrations of nelistotug', 'timeFrame': 'Up to 4 months'}, {'measure': 'Serum Concentrations of GSK5764227', 'timeFrame': 'Up to 4 months'}, {'measure': 'Maximum Observed Plasma Concentration (Cmax) of remzistotug Monotherapy', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax of remzistotug in Combination With Dostarlimab', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax of remzistotug in Combination With dostarlimab and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax following administration of dostarlimab with belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Minimum Observed Plasma Concentration (Cmin) of remzistotug Monotherapy', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmin of remzistotug in Combination With Dostarlimab', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmin of remzistotug in Combination With dostarlimab and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmin following administration of dostarlimab with belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Area Under the Plasma Concentration Curve From Time Zero to Last Time of Quantifiable Concentration (AUC[0-t]) of remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-t) of remzistotug in Combination With Dostarlimab', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-t) of remzistotug in Combination With dostarlimab and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-t) following administration of dostarlimab with belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC From Time Zero to Infinity (AUC[0-infinity]) of Single Dosing of remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-infinity) of Single Dosing of remzistotug in Combination with Dostarlimab', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-infinity) of Single Dosing of remzistotug in Combination With dostarlimab and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-infinity) of Single Dosing of remzistotug following administration of dostarlimab with belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax of dostarlimab in Combination With remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax of dostarlimab in combination with GSK5764227', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax of dostarlimab in combination with remzistotug and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax of dostarlimab in combination with belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax of dostarlimab in combination with belrestotug and remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax of dostarlimab in combination with belrestotug and nelistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'China cohort: Cmax of dostarlimab monotherapy', 'timeFrame': 'Up to 18 months'}, {'measure': 'Cmin of dostarlimab in Combination With remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmin of dostarlimab in combination with GSK5764227', 'timeFrame': 'Up to 18 months'}, {'measure': 'Cmin of dostarlimab in combination with remzistotug and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmin of dostarlimab in combination with belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmin of dostarlimab in combination with belrestotug and remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmin of dostarlimab in combination with belrestotug and nelistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'China cohort: Cmin of dostarlimab monotherapy', 'timeFrame': 'Up to 18 months'}, {'measure': 'AUC(0-t) of dostarlimab in Combination With remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-t) of dostarlimab in combination with GSK5764227', 'timeFrame': 'Up to 18 months'}, {'measure': 'AUC(0-t) of dostarlimab in combination with remzistotug and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-t) of dostarlimab in combination with belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-t) of dostarlimab in combination with belrestotug and remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-t) of dostarlimab in combination with belrestotug and nelistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'China cohort: AUC(0-t) of dostarlimab monotherapy', 'timeFrame': 'Up to 18 months'}, {'measure': 'AUC(0-infinity) of dostarlimab in Combination With remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-infinity) of dostarlimab in combination with GSK5764227', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-infinity) of dostarlimab in combination with remzistotug and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-infinity) of dostarlimab in combination with belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-infinity) of dostarlimab in combination with belrestotug and remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC(0-infinity) of dostarlimab in combination with belrestotug and nelistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'China cohort: AUC(0-infinity) of dostarlimab monotherapy', 'timeFrame': 'Up to 18 months'}, {'measure': 'T1/2 of dostarlimab in Combination With remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'T1/2 of dostarlimab in combination with GSK5764227', 'timeFrame': 'Up to 18 months'}, {'measure': 'China cohort: T1/2 of dostarlimab monotherapy', 'timeFrame': 'Up to 18 months'}, {'measure': 'Cmax of belrestotug in combination with dostarlimab and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax of belrestotug in combination with dostarlimab', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax of belrestotug in combination with dostarlimab and remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax of belrestotug in combination with dostarlimab and nelistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmin of belrestotug in combination with dostarlimab and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmin of belrestotug in combination with dostarlimab', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmin of belrestotug in combination with dostarlimab and remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmin of belrestotug in combination with dostarlimab and nelistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC (0-t) of belrestotug in combination with dostarlimab and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC (0-t) of belrestotug in combination with dostarlimab', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC (0-t) of belrestotug in combination with dostarlimab and remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC (0-t) of belrestotug in combination with dostarlimab and nelistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC (0-infinity) of belrestotug in combination with dostarlimab and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC (0- infinity) of belrestotug in combination with dostarlimab', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC (0- infinity) of belrestotug in combination with dostarlimab and remzistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC (0- infinity) of belrestotug in combination with dostarlimab and nelistotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax of nelistotug in combination with dostarlimab and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmin of nelistotug in combination with dostarlimab and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC (0-t) of nelistotug in combination with dostarlimab and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'AUC (0-infinity) of nelistotug in combination with dostarlimab and belrestotug', 'timeFrame': 'Up to 27 months'}, {'measure': 'Cmax of GSK5764227 in combination with dostarlimab', 'timeFrame': 'Up to 18 months'}, {'measure': 'Cmin of GSK5764227 in combination with dostarlimab', 'timeFrame': 'Up to 18 months'}, {'measure': 'AUC (0-t) of GSK5764227 conjugated Ab in combination with dostarlimab', 'timeFrame': 'Up to 18 months'}, {'measure': 'AUC (0-t) of GSK5764227 small molecule toxin in combination with dostarlimab', 'timeFrame': 'Up to 18 months'}, {'measure': 'AUC (0-infinity) of GSK5764227 conjugated Ab in combination with dostarlimab', 'timeFrame': 'Up to 18 months'}, {'measure': 'AUC (0-infinity) of GSK5764227 small molecule toxin in combination with dostarlimab', 'timeFrame': 'Up to 18 months'}]}, 'oversightModule': {'oversightHasDmc': False, 'isFdaRegulatedDrug': True, 'isFdaRegulatedDevice': False}, 'conditionsModule': {'keywords': ['Advanced solid tumors', 'Metastatic solid tumor', 'Anticancer agents', 'Dostarlimab', 'Remzistotug', 'GSK4428859A', 'Belrestotug', 'Nelistotug', 'GSK5764227', 'Head and neck squamous cell carcinoma (HNSCC)', 'Non-small-cell lung cancer (NSCLC)', 'Breast cancer (BC)', 'Clear cell renal cell cancer (ccRCC)', 'Gastric cancer (GC)', 'Colorectal cancer (CRC)', 'Endometrial cancer (EC)', 'Epithelial ovarian', 'fallopian tube', 'and primary peritoneal cancers'], 'conditions': ['Neoplasms']}, 'descriptionModule': {'briefSummary': 'This is a first time in-human (FTIH) study designed to investigate the safety, tolerability, pharmacokinetics (PK), and immunogenicity of remzistotug in participants with select loco-regionally recurrent solid tumors or metastatic solid tumors where curative or standard treatment options have been exhausted.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['ADULT', 'OLDER_ADULT'], 'minimumAge': '18 Years', 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion criteria:\n\n* A female participant is eligible to participate if she is not pregnant or breastfeeding, and at least 1 of the following conditions applies:\n\n * Is not a woman of childbearing potential (WOCBP) or\n * Is a WOCBP and using a contraceptive method that is highly effective with a failure rate of less than (\\<)1 percent (\\[%\\] per year), during the intervention period and for specified time after end of study treatment.\n * A WOCBP must have a negative highly sensitive pregnancy test within 24-48 hours before the first dose of study intervention.\n * Requirement for Arm I only: Male participants agree to use contraception and for their female partner to use contraception, if applicable.\n* Histological or cytological documentation of loco-regionally recurrent solid tumors where curative treatment options have been exhausted, or metastatic solid tumors; types as follows:\n\n * head and neck squamous cell carcinoma (HNSCC)\n * non-small-cell lung cancer (NSCLC)\n * breast cancer (BC)\n * clear cell renal cell cancer (ccRCC)\n * gastric cancer (GC)\n * colorectal cancer (CRC)\n * endometrial cancer (EC)\n * epithelial ovarian, fallopian tube, and primary peritoneal cancers- Disease that has progressed after standard therapy for the specific tumor type, or for which standard therapy has proven to be ineffective, intolerable, or is considered inappropriate, or if no further standard therapy exists.\n * Measurable disease per RECIST 1.1.\n* Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0-1.\n* Life expectancy of at least 12 weeks.\n* Adequate organ function, as defined in the protocol.\n* For participants enrolled in a PK/PD cohort, participant agrees to a fresh tumor biopsy during Screening and at approximately 6-weeks after treatment initiation.\n\nExclusion Criteria:\n\n* Prior treatment with the following therapies (specified time periods are from last dose of prior treatment to first dose of study intervention):\n\n * Any therapy directed against Polio virus receptor (PVR)-related immunoglobulin domain-containing (PVRIG) (COM701 or other anti-PVRIG monoclonal antibody \\[mAb\\]) or other cluster of differentiation (CD)226 axis receptor (T-cell immunoglobulin and immunoreceptor tyrosine-based inhibition motif domain \\[TIGIT\\] or CD96) at any time.\n * For Arm I only, prior treatment with orlotamab, enoblituzumab, I-Dxd, or other B7-H3 targeted agents.\n * Other prior immunotherapy, chemotherapy, targeted therapy, biological therapy or radiation therapy within specified periods as defined in the protocol.\n * Investigational therapy: if the participant has participated in a clinical study and has received an investigational product within 4 weeks or 5 half-lives of the investigational product (whichever is shorter).\n* Prior allogenic or autologous bone marrow transplantation or other solid organ transplantation.\n* Toxicity from previous anticancer treatment, including:\n\n * Greater than or equal to Grade 3 immune-mediated toxicity considered related to prior immunotherapy and that led to treatment discontinuation; or\n * History of myocarditis of any grade during a previous treatment with immunotherapy\n * Toxicity related to prior treatment that has not resolved to less than or equal to (\\<=) Grade 1. Non clinically relevant Grade 2 toxicities, not constituting a safety risk by investigator judgment are allowed.\n* Participant has a known additional malignancy that progressed or required active treatment within the last 2 years.'}, 'identificationModule': {'nctId': 'NCT05277051', 'briefTitle': 'First-Time-in-Human Study of GSK4381562 in Participants With Advanced Solid Tumors', 'organization': {'class': 'INDUSTRY', 'fullName': 'GlaxoSmithKline'}, 'officialTitle': 'A Phase 1 First-Time-in-Human, Open-Label Study of GSK4381562 Administered as Monotherapy and in Combination With Anticancer Agents in Participants With Selected Advanced Solid Tumors', 'orgStudyIdInfo': {'id': '217228'}, 'secondaryIdInfos': [{'id': '2023-509414-11-00', 'type': 'CTIS'}]}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': 'Participants Receiving remzistotug Monotherapy (Arm A)', 'interventionNames': ['Drug: Remzistotug']}, {'type': 'EXPERIMENTAL', 'label': 'Participants Receiving remzistotug Plus Dostarlimab (Arm B)', 'interventionNames': ['Drug: Remzistotug', 'Drug: Dostarlimab']}, {'type': 'EXPERIMENTAL', 'label': 'Participants Receiving remzistotug Plus Dostarlimab Plus belrestotug (Arm C)', 'interventionNames': ['Drug: Remzistotug', 'Drug: Dostarlimab', 'Drug: Belrestotug']}, {'type': 'EXPERIMENTAL', 'label': 'Participants Receiving Dostarlimab Plus belrestotug (Arm D)', 'interventionNames': ['Drug: Dostarlimab', 'Drug: Belrestotug']}, {'type': 'EXPERIMENTAL', 'label': 'Participants Receiving dostarlimab Plus belrestotug Plus remzistotug (Arm E)', 'interventionNames': ['Drug: Remzistotug', 'Drug: Dostarlimab', 'Drug: Belrestotug']}, {'type': 'EXPERIMENTAL', 'label': 'Participants Receiving dostarlimab Plus belrestotug Plus nelistotug (Arm F)', 'interventionNames': ['Drug: Dostarlimab', 'Drug: Belrestotug', 'Drug: Nelistotug']}, {'type': 'EXPERIMENTAL', 'label': 'China Cohort: Participants receiving dostarlimab (Arm G)', 'interventionNames': ['Drug: Dostarlimab']}, {'type': 'EXPERIMENTAL', 'label': 'Participants Receiving GSK5764227 Plus dostarlimab (Arm I)', 'interventionNames': ['Drug: Dostarlimab', 'Drug: GSK5764227']}], 'interventions': [{'name': 'Remzistotug', 'type': 'DRUG', 'description': 'Remzistotug will be administered.', 'armGroupLabels': ['Participants Receiving dostarlimab Plus belrestotug Plus remzistotug (Arm E)', 'Participants Receiving remzistotug Monotherapy (Arm A)', 'Participants Receiving remzistotug Plus Dostarlimab (Arm B)', 'Participants Receiving remzistotug Plus Dostarlimab Plus belrestotug (Arm C)']}, {'name': 'Dostarlimab', 'type': 'DRUG', 'description': 'Dostarlimab will be administered.', 'armGroupLabels': ['China Cohort: Participants receiving dostarlimab (Arm G)', 'Participants Receiving Dostarlimab Plus belrestotug (Arm D)', 'Participants Receiving GSK5764227 Plus dostarlimab (Arm I)', 'Participants Receiving dostarlimab Plus belrestotug Plus nelistotug (Arm F)', 'Participants Receiving dostarlimab Plus belrestotug Plus remzistotug (Arm E)', 'Participants Receiving remzistotug Plus Dostarlimab (Arm B)', 'Participants Receiving remzistotug Plus Dostarlimab Plus belrestotug (Arm C)']}, {'name': 'Belrestotug', 'type': 'DRUG', 'description': 'Belrestotug will be administered.', 'armGroupLabels': ['Participants Receiving Dostarlimab Plus belrestotug (Arm D)', 'Participants Receiving dostarlimab Plus belrestotug Plus nelistotug (Arm F)', 'Participants Receiving dostarlimab Plus belrestotug Plus remzistotug (Arm E)', 'Participants Receiving remzistotug Plus Dostarlimab Plus belrestotug (Arm C)']}, {'name': 'Nelistotug', 'type': 'DRUG', 'description': 'Nelistotug will be administered.', 'armGroupLabels': ['Participants Receiving dostarlimab Plus belrestotug Plus nelistotug (Arm F)']}, {'name': 'GSK5764227', 'type': 'DRUG', 'description': 'GSK5764227 will be administered.', 'armGroupLabels': ['Participants Receiving GSK5764227 Plus dostarlimab (Arm I)']}]}, 'contactsLocationsModule': {'locations': [{'zip': '94158', 'city': 'San Francisco', 'state': 'California', 'status': 'RECRUITING', 'country': 'United States', 'contacts': [{'name': 'US GSK Clinical Trials Call Center', 'role': 'CONTACT', 'email': 'GSKClinicalSupportHD@gsk.com', 'phone': '877-379-3718'}, {'name': 'EU GSK Clinical Trials Call Centre', 'role': 'CONTACT', 'email': 'GSKClinicalSupportHD@gsk.com', 'phone': '+44 (0) 20 8990 4466'}, {'name': 'Pamela N. 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