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Sacituzumab tirumotecan

Phase 3

Endometrial Cancer | Monoclonal antibody | Oncology |Merck & Company, Inc.|Last Updated: Jul 20, 2026

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Trial Design
RandomizedACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment710
FDA Designations
No designations recorded
Clinical trial landscape

Sacituzumab tirumotecan · 19 trials · 27 indications

Phase 3 13Phase 2 2Phase 1 4
NCT07419295A Clinical Trial of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) to Treat Urothelial Cancer (MK-2870-031)Bladder Cancer
RECRUITING590 Analytics
NCT07318558A Clinical Trial of Sac-TMT in People With Non-HRD Positive Advanced Ovarian Cancer (MK-2870-021)Ovarian Neoplasms
RECRUITING900 Analytics
NCT06966700A Clinical Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) in People With Breast Cancer (MK-2870-032)Breast Neoplasms
RECRUITING2,400 Analytics
NCT06824467A Study to Evaluate the Efficacy and Safety of Sacituzumab Tirumotecan (MK-2870) Maintenance Treatment Versus Standard of Care in Participants With Platinum-sensitive Recurrent Ovarian Cancer (MK-2870-022/TroFuse-022/ENGOT-ov84/GOG-3103)Ovarian Cancer
RECRUITING770 Analytics
NCT06841354A Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) as Monotherapy and in Combination With Pembrolizumab (MK-3475) in Participants With Triple-Negative Breast Cancer (MK-2870-011/TroFuse-011)Triple Negative Breast Neoplasms
RECRUITING1,000 Analytics
NCT06459180A Study to Compare Sacituzumab Tirumotecan (MK-2870) Monotherapy Versus Treatment of Physician's Choice as Second-line Treatment for Participants With Recurrent or Metastatic Cervical Cancer (MK-2870-020/TroFuse-020/Gog-3101/ENGOT-cx20)Cervical Cancer
ACTIVE NOT_RECRUITING686 Analytics
NCT06305754Sacituzumab Tirumotecan (MK-2870) Versus Pemetrexed and Carboplatin Combination Therapy in Participants With Epidermal Growth Factor (EGFR)-Mutated, Advanced Nonsquamous Non-small Cell Lung Cancer (NSCLC) Who Have Progressed on Prior EGFR Tyrosine Kinase Inhibitors (MK-2870-009)Non-small Cell Lung Cancer (NSCLC)
ACTIVE NOT_RECRUITING520 Analytics
NCT06356311A Study to Evaluate Sacituzumab Tirumotecan (MK-2870) in Advanced/Metastatic Gastroesophageal Adenocarcinoma (MK-2870-015)Gastroesophageal Cancer
ACTIVE NOT_RECRUITING450 Analytics
NCT06312176A Study of Sacituzumab Tirumotecan (MK-2870) as a Single Agent and in Combination With Pembrolizumab (MK-3475) Versus Treatment of Physician's Choice in Participants With HR+/HER2- Unresectable Locally Advanced or Metastatic Breast Cancer (MK-2870-010)Breast Neoplasms
RECRUITING1,200 Analytics
NCT06312137A Study to Assess Efficacy and Safety of Pembrolizumab With or Without Sacituzumab Tirumotecan (MK- 2870) in Adult Participants With Resectable Non Small Cell Lung Cancer (NSCLC) Not Achieving Pathological Complete Response (pCR) (MK-2870-019)Non Small Cell Lung Cancer
RECRUITING780 Analytics
PHASE3RECRUITING
A Clinical Trial of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) to Treat Urothelial Cancer (MK-2870-031)
Bladder CancerUnlock trial analytics
PHASE3RECRUITING
A Clinical Trial of Sac-TMT in People With Non-HRD Positive Advanced Ovarian Cancer (MK-2870-021)
Ovarian NeoplasmsUnlock trial analytics
PHASE3RECRUITING
A Clinical Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) in People With Breast Cancer (MK-2870-032)
Breast NeoplasmsUnlock trial analytics
PHASE3RECRUITING
A Study to Evaluate the Efficacy and Safety of Sacituzumab Tirumotecan (MK-2870) Maintenance Treatment Versus Standard of Care in Participants With Platinum-sensitive Recurrent Ovarian Cancer (MK-2870-022/TroFuse-022/ENGOT-ov84/GOG-3103)
Ovarian CancerUnlock trial analytics
PHASE3RECRUITING
A Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) as Monotherapy and in Combination With Pembrolizumab (MK-3475) in Participants With Triple-Negative Breast Cancer (MK-2870-011/TroFuse-011)
Triple Negative Breast NeoplasmsUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Study to Compare Sacituzumab Tirumotecan (MK-2870) Monotherapy Versus Treatment of Physician's Choice as Second-line Treatment for Participants With Recurrent or Metastatic Cervical Cancer (MK-2870-020/TroFuse-020/Gog-3101/ENGOT-cx20)
Cervical CancerUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Sacituzumab Tirumotecan (MK-2870) Versus Pemetrexed and Carboplatin Combination Therapy in Participants With Epidermal Growth Factor (EGFR)-Mutated, Advanced Nonsquamous Non-small Cell Lung Cancer (NSCLC) Who Have Progressed on Prior EGFR Tyrosine Kinase Inhibitors (MK-2870-009)
Non-small Cell Lung Cancer (NSCLC)Unlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Study to Evaluate Sacituzumab Tirumotecan (MK-2870) in Advanced/Metastatic Gastroesophageal Adenocarcinoma (MK-2870-015)
Gastroesophageal CancerUnlock trial analytics
PHASE3RECRUITING
A Study of Sacituzumab Tirumotecan (MK-2870) as a Single Agent and in Combination With Pembrolizumab (MK-3475) Versus Treatment of Physician's Choice in Participants With HR+/HER2- Unresectable Locally Advanced or Metastatic Breast Cancer (MK-2870-010)
Breast NeoplasmsUnlock trial analytics
PHASE3RECRUITING
A Study to Assess Efficacy and Safety of Pembrolizumab With or Without Sacituzumab Tirumotecan (MK- 2870) in Adult Participants With Resectable Non Small Cell Lung Cancer (NSCLC) Not Achieving Pathological Complete Response (pCR) (MK-2870-019)
Non Small Cell Lung CancerUnlock trial analytics
Study Endpoints
Primary Endpoints
Overall Survival (OS)
Up to approximately 40 months

OS is defined as time from randomization to death due to any cause.

Progression-Free Survival (PFS)
Up to approximately 49 months

PFS is defined as the time from randomization to the first documented progressive disease (PD) per Response Evaluation Criteria In Solid Tumors (RECIST) 1.1 by blinded independent central review (BICR) or death due to any cause, whichever occurs first. Per RECIST 1.1, PD is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered PD.

Percentage of Participants with Pathological Complete Response (pCR) at the Time of Definitive Surgery
Up to approximately 30 weeks

pCR (ypT0/Tis ypN0) is defined as the absence of residual invasive cancer on hematoxylin and eosin evaluation of the complete resected breast specimen and all sampled regional lymph nodes after completion of neoadjuvant systemic therapy per current American Joint Committee on Cancer (AJCC) staging criteria assessed by the local pathologist at the time of definitive surgery.

Event-Free Survival (EFS)
Up to approximately 92 months

EFS is defined as the time from randomization to disease progression that precludes surgery, local or distant recurrence, or death due to any cause, whichever occurs first.

Part 1: Number of participants with one or more adverse events (AEs)
Up to 6 weeks

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.

Part 1: Number of participants who discontinue study intervention due to an AE
Up to 6 weeks

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.

Part 2: Progression-free Survival (PFS)
Up to approximately 4 years

PFS is defined as the time from randomization to the first documented progressive disease (PD) or death from any cause, whichever occurs first. Per RECIST 1.1, PD is defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered PD. PFS as assessed by blinded independent central review (BICR) will be presented.

Progression-Free Survival (PFS) (sac-TMT versus treatment of physician's choice (TPC); sac-TMT plus pembrolizumab versus TPC)
Up to ~39 months

PFS is defined as the time from randomization to the first documented progressive disease (PD) per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1) based on blinded independent central review (BICR) or death due to any cause, whichever occurs first. PD is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered PD.

Overall Survival (OS) (sac-TMT versus TPC)
Up to ~61 months

OS is defined as the time from randomization to death due to any cause.

Objective Response Rate (ORR) in Sacituzumab Tirumotecan Run-in
Up to approximately 46 months

ORR is defined as the percentage of participants with Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: at least a 30% decrease in the sum of diameters of target lesions) per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1). The percentage of participants who experience CR or PR as assessed by Blinded Independent Central Review (BICR) will be presented.

Number of Participants Experiencing One or More Adverse Events (AEs) in Sacituzumab Tirumotecan Run-in
Up to approximately 46 months

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.

Number of Participants Discontinuing Study Treatment Due to an AE in Sacituzumab Tirumotecan Run-in
Up to approximately 46 months

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.

Overall Survival (OS) in Phase 3 Portion
Up to approximately 35 months

OS is defined as the time from randomization to death due to any cause.

Progression-Free Survival (PFS) ( sacituzumab tirumotecan versus treatment of physician's choice [TPC]; pembrolizumab + sacituzumab tirumotecan versus TPC)
Up to ~38 months

PFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first as assessed by Response Criteria in Solid Tumors Version 1.1 (RECIST 1.1). PD is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered PD. PFS as assessed by blinded independent central review (BICR) will be presented.

Disease-free survival (DFS) as assessed by Blinded Independent Central Review (BICR)
Up to ~ 93 months

DFS is defined as the time from randomization to any recurrence (local, locoregional, regional or distant), occurrence of new primary NSCLC, or death due to any cause, whichever occurs first.

Progression-free Survival (PFS) per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 as Assessed by Blinded Independent Central Review (BICR)
Up to approximately 27 months

PFS is defined as the time from randomization to the first documented disease progression per RECIST 1.1 based on BICR or death due to any cause, whichever occurs first.

Overall Survival (OS) of Participants with NSCLC with Epidermal Growth Factor Receptor (EGFR) Mutations
Up to approximately 41 months

OS is defined as the time from randomization to death due to any cause.

Intracranial response rate determined by Response Assessment in Neuro-Oncology Brain Metastases (RANO-BM) in patients with metastatic triple-negative breast cancer and brain metastases.
At screening and every 8 weeks during the treatment period (up to one year)

To determine the intracranial efficacy of sacituzumab tirumotecan in patients with metastatic triple-negative breast cancer and brain metastases. RANO-BM evaluates treatment response by categorizing results into Complete Response (CR), Partial Response (PR), Stable Disease (SD), or Progressive Disease (PD)

Evaluate the objective response rate (ORR) of sacituzumab tirumotecan in NEPC per Prostate Cancer Working Group (PCWG) modified Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST 1.1)
Baseline, End of treatment, up to 30 months

The percentage of patients with confirmed partial response (PR) or complete response (CR) based on RECIST 1.1 criteria where Complete Response (CR) - disappearance of all target lesions and measurable lymph nodes. Partial Response (PR) - ≥30% decrease in the sum of target lesion diameters (SLD) compared to baseline, with no new lesions or progression of non-target lesions. Stable Disease (SD) - change in SLD between -30% and +20% compared to baseline, with no new or unequivocally progressing non-target lesions. Progressive Disease (PD) - ≥20% increase in SLD compared to the smallest recorded SLD (nadir) or appearance of new lesion

Number of Participants with Dose Limiting Toxicity (DLT)
Up to approximately 7 weeks

DLT will be defined as any drug-related adverse event (AE) observed during the DLT evaluation period (7 weeks). All toxicities will be graded using National Cancer Institute Common Terminology for Adverse Events (NCI CTCAE) version 5.0.

Number of Participants Experiencing an Adverse Event (AE)
Up to approximately 10 weeks

An AE is defined as any untoward medical occurrence in a participant administered a study treatment which did not necessarily have to have a causal relationship with this treatment. An AE could be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of study treatment, whether or not considered related to the study treatment. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of study treatment, is also an AE. The number of participants who experience an AE will be reported.

Number of Participants Discontinuing Study Treatment due to an Adverse Event (AE)
Up to approximately 6 weeks

An AE is defined as any untoward medical occurrence in a participant administered a study treatment which did not necessarily have to have a causal relationship with this treatment. An AE could be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of study treatment, whether or not considered related to the study treatment. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of study treatment, is also an AE. The number of participants who discontinue study treatment due to an AE will be reported.

Part 1: Percentage of Participants with Dose-limiting toxicities (DLT)
Up to 21 days

A DLT is defined as an event with toxicity including the type, severity, time of onset, time of resolution, and the probable association with study treatment that are not due to pre-existing conditions as defined by the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events, Version 5.0 (CTCAE 5.0). The number of participants who experience a DLT in Part 1 will be reported.

Part 1: Percentage of Participants Who Experienced At Least One Adverse Event (AE)
Up to ~3 years

An AE is defined as any untoward medical occurrence in a participant administered study drug, which does not necessarily have to have a causal relationship with the study drug. The number of participants experiencing an AE in Part 1 will be reported.

Part 1: Percentage of Participants Who Discontinued Study Treatment Due to an AE
Up to ~2 years

An AE is defined as any untoward medical occurrence in a participant administered study drug, which does not necessarily have to have a causal relationship with the study drug. The number of participants who discontinue study treatment due to an AE in Part 1 will be reported.

Part 2: Percentage of Participants with DLT
Up to 21 days

A DLT is defined as an event with toxicity including the type, severity, time of onset, time of resolution, and the probable association with study treatment that are not due to pre-existing conditions as defined by the NCI CTCAE 5.0. The number of participants who experience a DLT in Part 2 will be reported.

Part 2: Percentage of Participants Who Experienced At Least One AE
Up to ~3 years

An AE is defined as any untoward medical occurrence in a participant administered study drug, which does not necessarily have to have a causal relationship with the study drug. The number of participants experiencing an AE in Part 2 will be reported.

Part 2: Percentage of Participants Who Discontinued Study Treatment Due to an AE
Up to ~2 years

An AE is defined as any untoward medical occurrence in a participant administered study drug, which does not necessarily have to have a causal relationship with the study drug. The number of participants who discontinue study treatment due to an AE in Part 2 will be reported.

Part 2: Objective Response Rate (ORR)
Up to ~3 years

ORR is defined as the percentage of participants who achieve a confirmed complete response (CR) (disappearance of all target lesions) or partial response (PR) (at least a 30% decrease in the sum of diameters of target lesions) per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 as assessed by investigator. ORR will be reported for participants in Part 2.

Number of Participants Who Experience a Dose-limiting Toxicity (DLT)
Up to approximately 4 weeks

A DLT is a medical problem related to the study medicine that prevents giving participants a higher dose or may prevent giving the participant the same dose. The number of participants who experience a DLT will be reported.

Number of Participants Who Experience One or More Adverse Events (AEs)
Up to approximately 63 months

An AE is a health problem that happens or worsens during the study. The number of participants who have an AE during the study will be reported.

Number of Participants who Discontinue Study Treatment due to an AE
Up to approximately 63 months

An AE is a health problem that happens or worsens during a study. The number of participants who stop study treatment will be reported.

Objective Response Rate (ORR) per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 as Assessed by Blinded Independent Central Review (BICR)
Up to approximately 63 months

ORR is defined as the percentage of participants with confirmed Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: at least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1. The percentage of participants who experience CR or PR as assessed by Blinded Independent Central Review (BICR) will be presented.

Number of Participants Experiencing Dose-Limiting Toxicity (DLT)
Up to 21 days after each dose

A DLT is defined as any of the following: Grade 4 nonhematologic toxicity; Grade 4 hematologic toxicity lasting ≥7 days, except thrombocytopenia or lymphopenia; any nonhematologic AE ≥Grade 3 in severity (with some exceptions); any Grade 3 or Grade 4 nonhematologic laboratory value (if certain criteria are met); febrile neutropenia Grade 3 or Grade 4; a prolonged delay (\>2 weeks) in initiating sacituzumab tirumotecan second dose due to intervention-related toxicity; any intervention-related toxicity that causes the participant to discontinue intervention during DLT evaluation period; or any Grade 5 toxicity. All toxicities will be graded using National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) v5.0.

Number of Participants Experiencing ≥1 Adverse Event (AE)
Up to ~32 months

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.

Number of Participants Discontinuing from Study Therapy due to AE
Up to ~32 months

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.

Secondary Endpoints
Progression-Free Survival (PFS)
Up to approximately 32 months
Objective Response Rate (ORR)
Up to approximately 32 months
Duration of Response (DOR)
Up to approximately 49 months
Unlock Study Endpoints
Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Sacituzumab tirumotecanEXPERIMENTALParticipants receive 4 mg/kg of sacituzumab tirumotecan every 2 weeks (Q2W) via intravenous (IV) infusion until disease progression or unacceptable toxicity.
ChemotherapyACTIVE_COMPARATORParticipants receive paclitaxel 175 mg/m\^2, docetaxel 75 mg/m\^2, or vinflunine 320 mg/m\^2 IV every 3 weeks (Q3W), at the investigator's discretion, until disease progression or unacceptable toxicity.
Sac-TMT +/- BevacizumabEXPERIMENTALParticipants will receive sac-TMT on days 1, 15, and 29 (q2W) of every 6-week cycle, until disease progression, prohibitive toxicity, or other protocol-defined reason for discontinuation. Participants receive optional bevacizumab at investigator's discretion on Days 1 and 22 (q3w) of every 6-week cycle, for up to 22 courses.
Standard of CareACTIVE_COMPARATORParticipants will either receive bevacizumab q3w of every 6-week cycle for up to 22 courses until disease progression, prohibitive toxicity, or other protocol-defined reason for discontinuation of study intervention, or will be observed only and actively followed if not receiving bevacizumab.
sac-TMTEXPERIMENTALParticipants receive sacituzumab tirumotecan intravenously (IV) at a dose of 4 mg/kg every 2 weeks (Q2W) + IV pembrolizumab 200 mg every 3 weeks (Q3W), for 12 weeks; then receive IV pembrolizumab 200 mg Q3W and IV carboplatin area under the curve (AUC) 1.5 + IV paclitaxel 80 mg/m\^2 once weekly, for 12 weeks. 3-6 weeks later, participants undergo surgery and optional radiation therapy, and receive IV pembrolizumab 400 mg once every 6 weeks or 200 mg Q3W for up to approximately 28 weeks. Additional adjuvant treatment of physician's choice (TPC) may be administered to participants with residual disease. TPC options are olaparib 300 mg oral twice daily (BID) for 1 year (participants with germline breast cancer susceptibility gene mutation (gBRCAm) only); capecitabine 1000-1250 mg/m\^2 oral twice daily on days 1-14 and 22-35 each cycle for 4 six-week cycles; or doxorubicin 60mg/m\^2 (or epirubicin 90 mg/m\^2) IV infusion Q3W/Q2W + cyclophosphamide 600 mg/m\^2 IV infusion Q3W/Q2W for 4 doses.
Part 1: Sacituzumab tirumotecan + BevacizumabEXPERIMENTALParticipants receive 4 mg/kg of sacituzumab tirumotecan once every 2 weeks (Q2W) plus 15 mg/kg of bevacizumab once every 3 weeks (Q3W) via intravenous (IV) infusion over 6 weeks
Part 2: Sacituzumab tirumotecanEXPERIMENTALParticipants receive 4 mg/kg of sacituzumab tirumotecan Q2W via IV infusion until progressive disease or discontinuation. At the physician's discretion, participants receive 15 mg/kg of bevacizumab Q3W via IV infusion until progressive disease or discontinuation.
Part 2: Standard of care (SOC)ACTIVE_COMPARATORParticipants receive local standard of care until progressive disease or discontinuation. At the physician's discretion, participants receive 15 mg/kg of bevacizumab Q3W via IV infusion until progressive disease or discontinuation.
Arm A: Sacituzumab TirumotecanEXPERIMENTALParticipants receive sacituzumab tirumotecan intravenously (IV) at a dose of 4 mg/kg every 2 weeks (Q2W) until disease progression, toxicity or discontinuation.
Arm B: Sacituzumab Tirumotecan + PembrolizumabEXPERIMENTALParticipants receive sacituzumab tirumotecan IV 4 mg/kg Q2W until disease progression, toxicity or discontinuation PLUS pembrolizumab IV 400 mg every 6 weeks (Q6W) for up to 18 administrations (up to \~2 years).
Arm C: Treatment of Physician's Choice (TPC)ACTIVE_COMPARATORParticipants receive physician's choice of chemotherapy agent(s): paclitaxel IV 80 mg/m\^2 once every week (Q1W) OR paclitaxel IV 90 mg/m\^2 on Days 1, 8, and 15, every 4 weeks (Q4W) OR nab-paclitaxel IV 100 mg/m\^2 on Days 1, 8, and 15, Q4W OR gemcitabine IV 1000 mg/m\^2 on Days 1 and 8, every 3 weeks (Q3W) PLUS carboplatin IV area under the curve (AUC) 2 mg/mL/min on Days 1 and 8, Q3W, until disease progression, toxicity or discontinuation.
Treatment of Physician's Choice (TPC)ACTIVE_COMPARATORAt the physician's discretion, participants will receive 500 mg/m\^2 of pemetrexed on day 1 of every 3-week cycle via IV infusion OR 2 mg/kg of tisotumab vedotin on day 1 of every 3-week cycle via IV infusion OR 1 mg/m\^2 (or 1.25 mg/m\^2 if tolerating well) topotecan on days 1, 2, 3, 4, and 5 of every 3-week cycle via IV infusion OR 30 mg/m\^2 of vinorelbine on days 1 and 8 of every 3-week cycle via IV infusion OR 1000 mg/m\^2 of gemcitabine on day 1 and 8 of every 3-week cycle via IV infusion OR 100 mg/m\^2 (or 125 mg/m\^2 if tolerating well) of irinotecan on days 1, 8, 15, and 22 of every 6 week cycle via IV infusion, until progressive disease or discontinuation.
Pemetrexed Plus CarboplatinACTIVE_COMPARATORParticipants receive, via IV infusion, 500 mg/m2 pemetrexed every 3 weeks (Days 1 and 22 of every 6-week cycle) plus area under the curve (AUC) 5 mg/mL\*min carboplatin every 3 weeks (Days 1 and 22 of every 6-week cycle for 4 doses), then 500 mg/m2 pemetrexed every 3 weeks until discontinuation criteria is met.
Arm B:Pembrolizumab + Sacituzumab tirumotecanEXPERIMENTALParticipants receive 4 mg/kg of sacituzumab tirumotecan Q2W via IV infusion until progressive disease or discontinuation PLUS 400 mg of pembrolizumab once every 6 weeks (Q6W) via IV infusion for up to 18 administrations (up to \~2 years).
Pembrolizumab + Sacituzumab tirumotecanEXPERIMENTALParticipants will receive pembrolizumab 200 mg intravenous (IV) infusion every 3 weeks (Q3W) for up to 12 weeks + double-platinum chemotherapy per neoplasm histology classification at the investigator's discretion as neoadjuvant therapy prior to surgery; followed by sacituzumab tirumotecan 4 mg/kg IV infusion every 2 weeks (Q2W) for up to 12 doses (\~24 weeks) with pembrolizumab monotherapy 200 mg IV infusion every 6 weeks (Q6W) for up to 7 cycles (\~42 weeks).
PembrolizumabACTIVE_COMPARATORParticipants will receive pembrolizumab 200 mg intravenous (IV) infusion Q3W for up to 12 weeks + double-platinum chemotherapy per neoplasm histology classification at the investigator's discretion as neoadjuvant therapy prior to surgery; followed by pembrolizumab monotherapy 200 mg IV infusion Q6W for up to 7 cycles (\~42 weeks).
Sacituzumab tirumotecan plus EVEXPERIMENTALParticipants will receive sacituzumab tirumotecan as an intravenous (IV) infusion and EV as an IV infusion on Days 1 and 8 of every 3-week cycle until disease progression, intolerable toxicity, or investigator decision.
Sacituzumab tirumotecan plus EV and pembrolizumabEXPERIMENTALParticipants will receive sacituzumab tirumotecan as an IV infusion and EV as an IV infusion on Days 1 and 8 of every 3-week cycle until disease progression, intolerable toxicity, or investigator decision. Participants will also receive pembrolizumab 200 mg as an IV infusion on Day 1 of every 3-week cycle for up to \~2 years (35 cycles).
Sacituzumab tirumotecan + ChemotherapyEXPERIMENTALParticipants will receive sacituzumab tirumotecan in one of two dose levels and chemotherapy every 2 weeks (Day 1 and Day 15 of every 4-week cycle). Participants will continue to receive the treatment until the cancer gets worse or they don't tolerate treatment.
Sacituzumab tirumotecan + Cisplatin + PembrolizumabEXPERIMENTALParticipants will receive sacituzumab tirumotecan in one of two dose levels on Day 1 and Day 8 of every 3-week cycle until the cancer gets worse or they don't tolerate treatment, cisplatin on Day 1 and Day 8 of each 3-week cycle for up to 8 cycles (up to approximately 6 months), and pembrolizumab on Day 1 of each 3-week cycle for up to approximately 2 years.
Arm 1: Sacituzumab tirumotecan MonotherapyEXPERIMENTALParticipants receive single doses of sacituzumab tirumotecan monotherapy once every 2 weeks (Q2W).
Arm 2: Pembrolizumab + Sacituzumab tirumotecan Combination TherapyEXPERIMENTALParticipants receive sacituzumab tirumotecan Q2W in combination with pembrolizumab once every 6 weeks (Q6W).
Interventions
NameTypeDescription
Sacituzumab tirumotecanBIOLOGICALIV infusion
VinflunineDRUGIV infusion
DocetaxelDRUGIV infusion
PaclitaxelDRUGIV infusion
Rescue medications for sacituzumab tirumotecanDRUGParticipants receive rescue medication at the investigator's discretion, per approved product label. Recommended rescue medications are pegfilgrastim or equivalent, histamine-1 (H1) receptor antagonist, histamine-2 (H2) receptor antagonist, acetaminophen or equivalent, dexamethasone or equivalent, and steroid mouthwash (dexamethasone or equivalent).
Rescue medications for chemotherapyDRUGParticipants receive rescue medication at the investigator's discretion, per approved product label. Recommended rescue medications are dexamethasone or equivalent, H1 receptor antagonist, H2 receptor antagonist, and laxative.
BevacizumabDRUGAdministered via IV infusion at a dose of 15mg/kg
Rescue MedicationsDRUGParticipants must receive prophylactic steroid mouthwash (dexamethasone or equivalent). It is recommended that participants receive the following rescue medications prior to sac-TMT infusion, per approved product label: histamine-1 receptor antagonist, histamine-2 receptor antagonist, acetaminophen or equivalent, and dexamethasone or equivalent.
PembrolizumabBIOLOGICALIV infusion
Rescue MedicationDRUGParticipants receive rescue medication at the investigators discretion, per approved product label. Recommended rescue medications are histamine -1 (H1) receptor agonist, histamine-2 (H2) receptor antagonist, acetaminophen or equivalent, dexamethasone or equivalent infusion, or steroid mouthwash (dexamethasone or equivalent).
CarboplatinDRUGIV infusion
DoxorubicinDRUGIV infusion
EpirubicinDRUGIV infusion
CyclophosphamideDRUGIV infusion
CapecitabineDRUGOral tablet
OlaparibDRUGOral tablet
H1 receptor antagonistDRUGRescue medication taken per approved product label before sacituzumab tirumotecan
H2 receptor antagonistDRUGRescue medication taken per approved product label before sacituzumab tirumotecan
Acetaminophen (or equivalent)DRUGRescue medication taken per approved product label before sacituzumab tirumotecan
Dexamethasone (or equivalent)DRUGRescue medication taken per approved product label before sacituzumab tirumotecan
Steroid mouthwash (dexamethasone or equivalent)DRUGRescue medication taken orally 2-4 times daily
Nab-paclitaxelDRUGIV Infusion
GemcitabineDRUGIV Infusion
PemetrexedDRUGIV infusion
Tisotumab VedotinBIOLOGICALIV infusion
TopotecanDRUGIV infusion
VinorelbineDRUGIV infusion
IrinotecanDRUGIV infusion
Trifluridine-TipiracilDRUGTrifluridine-tipiracil will be administered at 35 mg/m\^2 as tablet orally twice a day on days 1-5 and 8-12 of every 28-day cycle.
Supportive care measuresDRUGParticipants are allowed to take supportive care measures for the management of adverse events associated with study intervention at the discretion of the investigator. Supportive care measures may include but are not limited to antidiarrheal agents, antiemetic agents, opiate and non-opiate analgesic agents, appetite stimulants, and granulocyte and erythroid growth factors.
Liposomal doxorubicinDRUGIV infusion
CisplatinDRUGCisplatin is administered as 75 mg/m\^2 IV infusion q3w for up to 12 weeks as background treatment in neoadjuvant phase
Enfortumab VedotinBIOLOGICALIV infusion at different dose levels
Fluorouracil (5-FU)DRUG5-FU is administered by IV infusion over 46 to 48 hours every 2 weeks.
Leucovorin (LV) or levoleucovorinDRUGLV or levoleucovorin is administered by IV infusion every 2 weeks.
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Eligibility Criteria
Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites69

Inclusion Criteria: The main inclusion criteria include but are not limited to the following: * Has histologically documented locally advanced/metastatic urothelial cancer. Locally advanced disease must not be amenable to resection or radiation with curative intent per investigator assessment * Ha...

Countries:United StatesArgentinaAustraliaBelgiumBrazilCanadaChinaFranceGreeceIsraelItalyJapanNetherlandsSpainSwedenAustriaColombiaCzechiaDenmarkFinlandHungaryIrelandNorwayPolandSouth KoreaSwitzerlandTaiwanThailandUnited KingdomChileGermanyGuatemalaHong KongMalaysiaNew ZealandPeruPhilippinesPortugalRomaniaSingaporeSouth AfricaTurkey (Türkiye)UkraineVietnamMexicoBulgariaPuerto RicoIndiaCosta Rica
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Recent Changes (Last 90 Days)
LOWJul 20, 2026NCT06312137lastUpdatePostDate: changed
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LOWJul 20, 2026NCT06305754lastUpdatePostDate: changed
LOWJul 20, 2026NCT06966700lastUpdatePostDate: changed
LOWJul 20, 2026NCT06312176lastUpdatePostDate: changed
LOWJul 20, 2026NCT07419295lastUpdatePostDate: changed
LOWJul 20, 2026NCT06170788lastUpdatePostDate: changed
LOWJul 20, 2026NCT06312137lastUpdatePostDate: changed
LOWJul 20, 2026NCT06824467lastUpdatePostDate: changed
LOWJul 20, 2026NCT07318558lastUpdatePostDate: changed
LOWJul 20, 2026NCT06841354lastUpdatePostDate: changed
LOWJul 20, 2026NCT06305754lastUpdatePostDate: changed
LOWJul 17, 2026NCT06074588lastUpdatePostDate: changed
LOWJul 17, 2026NCT06074588lastUpdatePostDate: changed