A Study Comparing the Combination of Pembrolizumab and Sacituzumab Govitecan Versus Standard of Care in the Treatment of Advanced Urothelial Cancer

NCT ID: NCT06524544

Last Updated: 2025-11-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

320 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-07-20

Study Completion Date

2028-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This phase III trial compares the effectiveness of pembrolizumab and sacituzumab govitecan to standard of care in treating patients with urothelial cancer that has spread to nearby tissue or lymph nodes (locally advanced) or that has spread to other places in the body (metastatic). Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Sacituzumab govitecan is a monoclonal antibody, called sacituzumab, linked to a chemotherapy drug called govitecan. Sacituzumab attaches to TROP2 positive tumor cells in a targeted way and delivers govitecan to kill them. The usual treatment approach is treatment with chemotherapy such as cisplatin, carboplatin, gemcitabine, docetaxel or paclitaxel. Cisplatin is in a class of medications known as platinum-containing compounds. It works by killing, stopping or slowing the growth of tumor cells. Carboplatin is in a class of medications known as platinum-containing compounds. It works in a way similar to the anticancer drug cisplatin, but may be better tolerated than cisplatin. Carboplatin works by killing, stopping or slowing the growth of tumor cells. Gemcitabine is a chemotherapy drug that blocks the cells from making deoxyribonucleic acid and may kill tumor cells. Docetaxel is in a class of medications called taxanes. It stops tumor cells from growing and dividing and may kill them. Paclitaxel is in a class of medications called antimicrotubule agents. It stops tumor cells from growing and dividing and may kill them. Giving pembrolizumab and sacituzumab govitecan may be more effective than usual care of carboplatin or cisplatin with gemcitabine, docetaxel or paclitaxel in treating patients with locally advanced or metastatic urothelial cancer.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

PRIMARY OBJECTIVE:

I. To compare overall survival (OS) between the therapy of physician choice (TPC) arm and the sacituzumab govitecan + pembrolizumab arm.

SECONDARY OBJECTIVES:

I. To compare the progression free survival (PFS) between the TPC arm and the sacituzumab govitecan + pembrolizumab arm.

II. To evaluate overall response rate (ORR) between the TPC arm and the sacituzumab govitecan + pembrolizumab arm.

III. To evaluate clinical benefit rate (complete response \[CR\]/partial response \[PR\] /stable disease \[SD\]) between the TPC arm and the sacituzumab govitecan + pembrolizumab arm.

IV. To evaluate duration of response (DoR) between the TPC arm and the sacituzumab govitecan + pembrolizumab arm.

V. To evaluate toxicity of the sacituzumab govitecan + pembrolizumab arm using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE).

EXPLORATORY HEALTH RELATED QUALITY OF LIFE (HRQOL) OBJECTIVES:

I. To compare HRQOL, as assessed by the National Comprehensive Cancer Network/Functional Assessment of Cancer Therapy Bladder Symptom Index-18 (FBISI-18) summary score between patients on the TPC arm versus the sacituzumab govitecan + pembrolizumab arm at 6 months.

II. To compare HRQOL change from baseline, as assessed by the FBISI-18 summary score, for patients on the TPC arm versus the sacituzumab govitecan + pembrolizumab arm at baseline, 3, 6, and 12 months.

III. To compare the change in patient-reported fatigue from baseline and across 3, 6, and 12 months as measured by the Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue) summary score; change from baseline will be compared between patients on the TPC arm versus the sacituzumab govitecan + pembrolizumab arm.

IV. To compare quality-adjusted survival (overall survival x health utility score assessed by the European Quality of Life Five Dimension Five Level \[EQ-5D-5L\]) between patients on the TPC arm versus the sacituzumab govitecan + pembrolizumab arm.

V. To compare time to HRQOL deterioration in global HRQOL, as measured by the FBISI-18 disease-related physical symptom subscale (FBISI-18 disease-related symptoms (DRS) in the physical emotional domains \[DRS-P\]), between patients on the TPC arm versus the sacituzumab govitecan + pembrolizumab arm.

OUTLINE: Patients are randomized to 1 of 2 arms.

ARM A: Patients receive TPC with carboplatin or cisplatin intravenously (IV) on day 1 and gemcitabine IV on days 1 and 8 of each cycle. Cycles repeat every 21 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity. Patients may alternately receive TPC with docetaxel IV on day 1 of each cycle or paclitaxel IV on days 1 and 8 of each cycle. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients additionally undergo blood sample collection and computed tomography (CT) or magnetic resonance imaging (MRI) throughout the study.

ARM B: Patients receive sacituzumab govitecan IV over 1-3 hours on days 1 and 8 and pembrolizumab IV over 30 minutes on day 1 of each cycle. Cycles repeat every 21 days for up to 35 cycles or for 2 years of pembrolizumab in the absence of disease progression or unacceptable toxicity. Cycles of sacituzumab govitecan repeats every 21 days in the absence of disease progression or unacceptable toxicity. Patients additional undergo blood sample collection, and CT or MRI throughout the study.

After completion of study treatment, patients are followed up at 30 days then once a year for 5 years from the date of randomization.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Locally Advanced Urothelial Carcinoma Metastatic Urothelial Carcinoma Unresectable Urothelial Carcinoma

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Arm I (TPC chemotherapy)

Patients receive TPC with carboplatin or cisplatin IV on day 1 and gemcitabine IV on days 1 and 8 of each cycle. Cycles repeat every 21 days for up to 6 cycles in the absence of disease progression or unacceptable toxicity. Patients may alternately receive TPC with docetaxel IV on day 1 of each cycle or paclitaxel IV on days 1 and 8 of each cycle. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients additional undergo blood sample collection, and CT or MRI throughout the study.

Group Type ACTIVE_COMPARATOR

Biospecimen Collection

Intervention Type PROCEDURE

Undergo blood sample collection

Carboplatin

Intervention Type DRUG

Given IV

Cisplatin

Intervention Type DRUG

Given IV

Computed Tomography

Intervention Type PROCEDURE

Undergo CT

Docetaxel

Intervention Type DRUG

Given IV

Gemcitabine

Intervention Type DRUG

Given IV

Magnetic Resonance Imaging

Intervention Type PROCEDURE

Undergo MRI

Paclitaxel

Intervention Type DRUG

Given IV

Questionnaire Administration

Intervention Type OTHER

Ancillary studies

Arm II (pembrolizumab, sacituzumab govitecan)

Patients receive pembrolizumab IV over 30 minutes on day 1 and sacituzumab govitecan IV over 1-3 hours on days 1 and 8 of each cycle. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients additional undergo blood sample collection, and CT or MRI throughout the study.

Group Type EXPERIMENTAL

Biospecimen Collection

Intervention Type PROCEDURE

Undergo blood sample collection

Computed Tomography

Intervention Type PROCEDURE

Undergo CT

Magnetic Resonance Imaging

Intervention Type PROCEDURE

Undergo MRI

Pembrolizumab

Intervention Type BIOLOGICAL

Given IV

Questionnaire Administration

Intervention Type OTHER

Ancillary studies

Sacituzumab Govitecan

Intervention Type BIOLOGICAL

Given IV

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Biospecimen Collection

Undergo blood sample collection

Intervention Type PROCEDURE

Carboplatin

Given IV

Intervention Type DRUG

Cisplatin

Given IV

Intervention Type DRUG

Computed Tomography

Undergo CT

Intervention Type PROCEDURE

Docetaxel

Given IV

Intervention Type DRUG

Gemcitabine

Given IV

Intervention Type DRUG

Magnetic Resonance Imaging

Undergo MRI

Intervention Type PROCEDURE

Paclitaxel

Given IV

Intervention Type DRUG

Pembrolizumab

Given IV

Intervention Type BIOLOGICAL

Questionnaire Administration

Ancillary studies

Intervention Type OTHER

Sacituzumab Govitecan

Given IV

Intervention Type BIOLOGICAL

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

Biological Sample Collection Biospecimen Collected Specimen Collection Blastocarb Carboplat Carboplatin Hexal Carboplatino Carboplatinum Carbosin Carbosol Carbotec CBDCA Displata Ercar JM-8 JM8 Nealorin Novoplatinum Paraplatin Paraplatin AQ Paraplatine Platinwas Ribocarbo Abiplatin Blastolem Briplatin CDDP Cis-diammine-dichloroplatinum Cis-diamminedichloridoplatinum Cis-diamminedichloro Platinum (II) Cis-diamminedichloroplatinum Cis-dichloroammine Platinum (II) Cis-platinous Diamine Dichloride Cis-platinum Cis-platinum II Cis-platinum II Diamine Dichloride Cismaplat Cisplatina Cisplatinum Cisplatyl Citoplatino Citosin Cysplatyna DDP Lederplatin Metaplatin Neoplatin Peyrone's Chloride Peyrone's Salt Placis Plastistil Platamine Platiblastin Platiblastin-S Platinex Platinol Platinol- AQ Platinol-AQ Platinol-AQ VHA Plus Platinoxan Platinum Platinum Diamminodichloride Platiran Platistin Platosin CAT CAT Scan Computed Axial Tomography Computerized Axial Tomography Computerized axial tomography (procedure) Computerized Tomography Computerized Tomography (CT) scan CT CT Scan Diagnostic CAT Scan Diagnostic CAT Scan Service Type tomography Docecad RP 56976 RP-56976 RP56976 Taxotere Taxotere Injection Concentrate dFdC dFdCyd Difluorodeoxycytidine Magnetic Resonance Magnetic Resonance Imaging (MRI) Magnetic resonance imaging (procedure) Magnetic Resonance Imaging Scan Medical Imaging, Magnetic Resonance / Nuclear Magnetic Resonance MR MR Imaging MRI MRI Scan MRIs NMR Imaging NMRI Nuclear Magnetic Resonance Imaging sMRI Structural MRI Anzatax Asotax Bristaxol Praxel Taxol Taxol Konzentrat BCD-201 GME 751 GME751 Keytruda Lambrolizumab MK 3475 MK-3475 MK3475 Pembrolizumab Biosimilar BCD-201 Pembrolizumab Biosimilar GME751 Pembrolizumab Biosimilar QL2107 Pembrolizumab Biosimilar RPH-075 Pembrolizumab Biosimilar SB27 QL2107 RPH 075 RPH-075 RPH075 SB 27 SB-27 SB27 SCH 900475 SCH-900475 SCH900475 hRS7-SN38 Antibody Drug Conjugate IMMU 132 IMMU-132 IMMU132 RS7 SN38 RS7-SN38 RS7SN38 Sacituzumab Govitecan-hziy Trodelvy

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Patient must be ≥ 18 years of age
* Patient must have Eastern Cooperative Oncology Group (ECOG) performance status 0-2.
* Patient must have locally advanced (unresectable or not amenable to curative intent therapy) or metastatic urothelial cancer
* Patient must have histologically proven conventional urothelial carcinoma (UC) of any urinary tract origin \[any histologic subtype except neuroendocrine (small or large cell)\] are permitted so long as tumors include ≥ 1% urothelial histology). NOTE: Pure non-urothelial histology is excluded
* Patient must have measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 criteria. Baseline imaging must be obtained ≤ 35 days prior to randomization
* Patient must have the following prior treatment. Patient must have had progression on or after the immediate prior therapy
* Patient must have had prior exposure to anti-PD(L)1 therapy \[anti -PD(L)1 monotherapy or as a combination regimen in any disease/therapy setting for UC. Patients must have received at least 1 dose of anti-PD(L)1 therapy

* NOTE: Anti-PD(L)1 therapy does not need to be the most recent therapy received prior to enrollment on this protocol
* Patient must not have had progression within 12 weeks of using anti-PD(l) 1 therapy
* Patient must have had ≥ 1 line of systemic therapy given in the advanced/metastatic disease setting. For tumors with FGFR3 + susceptible alteration (for FGFR inhibitor), patients must have received a prior FGFR inhibitor unless contraindicated per physician discretion
* Patient must have received prior enfortumab vedotin in any disease/therapy setting unless contraindicated per physician
* Patient must have had no prior exposure to sacituzumab govitecan or other TROP-2 directed therapies or antibody-drug conjugate that contains topo-isomerase I inhibitor, e.g. trastuzumab deruxtecan
* Patient must have Bellmunt score of 0-2. The Bellmunt score assesses a patient's risk and is calculated based upon ECOG PS, the hemogloblin level and presence of liver metastases
* Patient must not have any history of grade 3 or higher immune-related adverse events on prior anti-PD1/L1, except for endocrinopathies on adequate hormone therapy repletion and clinically insignificant laboratory abnormalities
* Patient must have recovered (i.e., ≤ grade 1) from clinically significant AEs due to previously administered systemic therapy agent, except for endocrinopathies on adequate hormone therapy repletion

* NOTE: Patients with ≤ grade 2 neuropathy, any grade of alopecia, or any grade of non-clinically significant laboratory abnormality are exceptions to this criterion and are allowed in this trial.
* Examples of non-clinically significant laboratory abnormalities include, but are not limited to:

* Lymphopenia or monopenia
* Lymphocytosis or monocytosis
* Increase in amylase or lipase with no clinical correlation
* Any other abnormal laboratory findings that have no clinical relevance per the treating investigators.
* NOTE: If patient has undergone major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to randomization
* Patient must not be pregnant or breast-feeding due to the potential harm to an unborn fetus and possible risk for adverse events in nursing infants with the treatment regimens being used. All patients of childbearing potential must have a blood test or urine study within 14 days prior to randomization to rule out pregnancy. A patient of childbearing potential is defined as anyone, regardless of whether they have undergone tubal ligation, who meets the following criteria: 1) has achieved menarche at some point, 2) has not undergone a hysterectomy or bilateral oophorectomy; or 3) has not been naturally postmenopausal (amenorrhea following cancer therapy does not rule out childbearing potential) for at least 24 consecutive months (i.e., has had menses at any time in the preceding 24 consecutive months). Patient must not nurse infants while on protocol treatment and for 4 months after the last dose of protocol treatment
* Patient must not expect to conceive or father children by using an accepted and effective method(s) of contraception or by abstaining from sexual intercourse for the duration of their participation in the study. Patients of childbearing potential must continue contraceptive method(s) or abstain for 6 months after the last dose of protocol treatment. Patients with partners who could become pregnant should use effective contraception during therapy and for 3 months after the last dose of protocol treatment
* Patient must have the ability to understand and the willingness to sign a written informed consent document. Patients with impaired decision-making capacity (IDMC) who have a legally authorized representative (LAR) or caregiver and/or family member available will also be considered eligible
* Absolute neutrophil count (ANC) ≥ 1,500/uL (obtained ≤ 14 days prior to randomization)
* Platelets ≥ 100,000/uL (obtained ≤ 14 days prior to randomization)
* Albumin ≥ 3 g/dL (obtained ≤ 14 days prior to randomization)
* Total bilirubin ≤ 1.5 x institutional upper limit of normal (ULN) (obtained ≤ 14 days prior to randomization)
* Aspartate aminotransferase (AST)(serum glutamic oxaloacetic transaminase \[SGOT\]) and alanine aminotransferase (ALT)(serum glutamic pyruvic transaminase \[SGPT\]) ≤ 3 × institutional ULN or ≤ 5.0 x institutional ULN if known liver metastases (obtained ≤ 14 days prior to randomization)
* Creatinine clearance (CrCl) ≥ 30 mL/min (obtained ≤ 14 days prior to randomization) NOTE: CrCl is estimated using the Cockcroft-Gault formula (or can be measured by 24-hour urine collection if needed)
* Patient must not have a known genetic UGT1A1 deficiency (Gilbert's syndrome). Patients with variant type UGT1A1\*28 allele may have increased levels of SN-38 metabolite (due to reduced SN-38 metabolism and clearance) and are at higher risk for severe adverse events when compared to wild-type.

* NOTE: If a patient's UGT1A1 status is unknown, they are eligible to enroll (the study does not require this test as part of screening)
* Human immunodeficiency virus (HIV)-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months of randomization are eligible for this trial
* For patients with evidence of chronic hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated
* Patients with a history of hepatitis C virus (HCV) infection must have been treated and considered cured. For patients with HCV infection who are currently on treatment, they are eligible if they have an undetectable HCV viral load
* Patients with treated brain metastases are eligible if follow-up brain imaging after central nervous system (CNS)-directed therapy shows no evidence of progression and are not using steroids \> 10 mg of prednisone (or equivalent) daily for brain metastases for at least 7 days prior to randomization
* Patients with a prior or concurrent malignancy that is not considered clinically significant and whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen (at the discretion of the treating physician) are eligible for this trial
* Patient must not be on systemic immunosuppressive medication, including steroids (if doses exceed the equivalent of prednisone 10 mg daily). Short courses of steroids, e.g. "burst", which are discontinued prior to randomization are acceptable. Patients on inhaled, intranasal, intra-articular and/or topical steroids are eligible
* Patient must be English or Spanish speaking to be eligible for the HRQOL component of the study.

* NOTE: Sites cannot translate the associated HRQOL forms
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

National Cancer Institute (NCI)

NIH

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Monika Joshi

Role: PRINCIPAL_INVESTIGATOR

ECOG-ACRIN Cancer Research Group

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

ECOG-ACRIN Cancer Research Group

Philadelphia, Pennsylvania, United States

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

United States

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Monika Joshi

Role: primary

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

NCI-2024-06208

Identifier Type: REGISTRY

Identifier Source: secondary_id

EA8231

Identifier Type: OTHER

Identifier Source: secondary_id

EA8231

Identifier Type: OTHER

Identifier Source: secondary_id

U10CA180820

Identifier Type: NIH

Identifier Source: secondary_id

View Link

NCI-2024-06208

Identifier Type: -

Identifier Source: org_study_id