ClinicalTrials.gg
RecruitingNCT06524544Updated Nov 4, 2026

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

A Phase 3 interventional study of Biospecimen Collection and Carboplatin in Locally Advanced Urothelial Carcinoma, Metastatic Urothelial Carcinoma and Unresectable Urothelial Carcinoma, sponsored by National Cancer Institute (NCI). Recruiting at 163 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-11-04.

Sponsored by National Cancer Institute (NCI) · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Started Dec 2025; still recruiting 11 months later.
Updated Nov 4, 2026Eligibility revised3 sites added+1 moreGo to Updates ↓
Phase
Phase 3
Study type
Interventional
Enrollment
320
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This phase III trial compares the effectiveness of pembrolizumab and sacituzumab govitecan-hziy 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-hziy is a monoclonal antibody, called sacituzumab, linked to a chemotherapy drug called govitecan-hziy. Sacituzumab attaches to TROP2 positive tumor cells in a targeted way and delivers govitecan-hziy 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-hziy 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.

Read the detailed description

PRIMARY OBJECTIVE:

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

SECONDARY OBJECTIVES:

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

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

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

V. To evaluate toxicity of the Sacituzumab govitecan-hziy + 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-hziy + 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-hziy + 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-hziy + 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-hziy + 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-hziy + 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 either day 1 or days 1, 8, and 15 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-hziy 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-hziy repeats every 21 days in the absence of disease progression or unacceptable toxicity. Patients additionally 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.

02

Conditions studied

  • Locally Advanced Urothelial Carcinoma
  • Metastatic Urothelial Carcinoma
  • Unresectable Urothelial Carcinoma
03

In context

Carcinoma, Transitional Cell

633 studies on the registry are indexed under Carcinoma, Transitional Cell; 181 are open to participants now.

This study's planned enrollment of 320 is above the median of 50 across 500 interventional studies indexed under Carcinoma, Transitional Cell.

Browse Carcinoma, Transitional Cell studies →

Lead sponsor

National Cancer Institute (NCI) is the lead sponsor of 3,556 studies on the registry; 336 are open to participants now.

Of its 411 completed or terminated interventional studies of FDA-regulated products, 373 (91%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

The criteria were revised on the registry on Nov 4, 2026. See what changed

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

  • Patient must be ≥ 18 years of age
  • Patient must have (ECOG) performance status 0-2.
  • Patient must have locally advanced (unresectable and/or not amenable to curative intent therapy) or urothelial cancer
  • Patient must have histologically (or based on urine cytology) 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% conventional urothelial histology). NOTE: Pure non-urothelial histology is excluded
  • Patient must have per (RECIST) 1.1 criteria. Baseline imaging must be obtained ≤ 35 days prior to randomization
  • Patient must have the following prior treatment(s). Patient must have had progression on or after the immediate prior anti-cancer 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
    • NOTE: Patient must not have had progression within 12 weeks of starting their first anti-PD(L) 1 therapy, even if anti-PD-(L)1 treatment was given in more than one
  • Patient must have had ≥ 1 line of systemic therapy given in the advanced/metastatic disease setting, except for patients who had received anti-PD(L)1 + enfortumab vedotin in the localized disease setting (e.g., and/or adjuvant) and had cancer progression within 12 months from the last systemic therapy dose
  • For tumors with known FGFR3+ susceptible alteration (for FGFR inhibitor), patients must have received a prior FGFR inhibitor unless per physician discretion
  • Patient must have received prior enfortumab vedotin or any other Nectin-4 directed therapy or other MMAE-containing therapy in any disease/therapy setting unless contraindicated per physician
  • Patient must have had no prior exposure to Sacituzumab govitecan-hziy 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 on ECOG PS, level and presence of liver metastases
  • Patient must not have history of grade 3-4 immune-related adverse events on prior anti-PD1/L1, except for endocrinopathies on adequate hormone therapy repletion and/or clinically insignificant laboratory abnormalities
  • Patient must have recovered (i.e., ≤ grade 1) from 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 investigator.
    • 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 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 (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 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 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
  • (ANC) ≥ 1,500/uL (obtained ≤ 14 days prior to randomization)
  • ≥ 100,000/uL (obtained ≤ 14 days prior to randomization)
  • Albumin ≥ 3 g/dL (obtained ≤ 14 days prior to randomization)
  • Total ≤ 1.5 x institutional (ULN) (obtained ≤ 14 days prior to randomization)
  • (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)
  • (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)
  • Hemoglobin (Hb) ≥ 8.5 g/dl (obtained ≤ 14 days prior to randomization)
  • Patient must not have a known genetic UGT1A1 *28/*28 or *6/*6 homozygous variant genotype. Patients with homozygous variant types are considered poor metabolizers and are at higher risk for severe adverse events when compared to wild-type. Patients with heterozygous UGT1A1 variants (i.e. *1/*28 or *1/*6) are eligible and should be counseled accordingly and be very closely monitored if randomized to the sacituzumab govitecan arm

    • 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)
  • (HIV)-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months of randomization are eligible
  • For patients with evidence of chronic virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated
  • Patients with history of 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 are eligible if follow-up brain imaging after central nervous system (CNS)-directed therapy shows no evidence of progression and are not using > 10 mg of prednisone (or equivalent) daily for brain metastases for at least 7 days prior to randomization
  • Patients with prior or concurrent 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 regimen (at the discretion of the treating physician) are eligible
  • Patient must not be on systemic 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
Terms in these criteria, in plain language(27)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

Adjuvant and neoadjuvant

Neoadjuvant treatment is given before the main treatment (usually surgery), often to shrink a tumour. Adjuvant treatment is given after it, to lower the chance of the cancer coming back.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
320 participants (estimated)

Study arms

  • Active comparator
    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 either day 1 or days 1, 8, and 15 of each cycle. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients additionally undergo blood sample collection and CT or MRI throughout the study.

    Procedure: Biospecimen Collection · Drug: Carboplatin · Drug: Cisplatin · Procedure: Computed Tomography · Drug: Docetaxel · Drug: Gemcitabine · Procedure: Magnetic Resonance Imaging · Drug: Paclitaxel · Other: Questionnaire Administration

  • Experimental
    Arm II (pembrolizumab, sacituzumab govitecan-hziy)

    Patients receive pembrolizumab IV over 30 minutes on day 1 and sacituzumab govitecan-hziy 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 additionally undergo blood sample collection, and CT or MRI throughout the study.

    Procedure: Biospecimen Collection · Procedure: Computed Tomography · Procedure: Magnetic Resonance Imaging · Biological: Pembrolizumab · Other: Questionnaire Administration · Biological: Sacituzumab Govitecan

Interventions

  • ProcedureBiospecimen Collection

    Undergo blood sample collection

    Also known as: Biological Sample Collection, Biospecimen Collected, Sample Collection, Specimen Collection

  • Given IV

    Also known as: Blastocarb, Carboplat, Carboplatin Hexal, Carboplatino, Carboplatinum, Carbosin, Carbosol, Carbotec, CBDCA, Displata, Ercar, JM-8, JM8, Nealorin, Novoplatinum, Paraplatin, Paraplatin AQ, Paraplatine, Platinwas, Ribocarbo

  • Given IV

    Also known as: 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

  • ProcedureComputed Tomography

    Undergo CT

    Also known as: 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

  • Given IV

    Also known as: Docecad, RP 56976, RP-56976, RP56976, Taxotere, Taxotere Injection Concentrate

  • Given IV

    Also known as: dFdC, dFdCyd, Difluorodeoxycytidine

  • ProcedureMagnetic Resonance Imaging

    Undergo MRI

    Also known as: 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

  • Given IV

    Also known as: Anzatax, Asotax, Bristaxol, Praxel, Taxol, Taxol Konzentrat

  • BiologicalPembrolizumab

    Given IV

    Also known as: 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

  • OtherQuestionnaire Administration

    Ancillary studies

  • Given IV

    Also known as: hRS7-SN38 Antibody Drug Conjugate, IMMU 132, IMMU-132, IMMU132, RS7 SN38, RS7-SN38, RS7SN38, Sacituzumab Govitecan-hziy, Trodelvy

06

What researchers measure

Primary outcomes

  1. Overall survival (OS)

    OS will be characterized with the method of Kaplan-Meier and will be compared between the two treatment arms using stratified log-rank test. The hazard ratio (HR) will be estimated, and a 95% confidence interval (CI) will be reported.

    Time frame: From randomization to death due to any cause, assessed up to 5 years

Secondary outcomes

  1. Progression-free survival (PFS)

    PFS will be assessed per Response Evaluation Criteria in Solid Tumors (RECIST) version (v) 1.1. PFS will be characterized with the method of Kaplan-Meier and will be compared between the two treatment arms using stratified log-rank test. The HR will be estimated, and a 95% CI will be reported.

    Time frame: From randomization to the earlier progression or death due to any cause, assessed up to 5 years

  2. Overall response rate (ORR)

    ORR will be assessed among patients who received at least one dose of protocol therapy using RECIST v 1.1 criteria. ORR will be defined as the number of patients with complete response (CR) and partial response (PR) divided by the number of treated patients. ORR will be calculated based on the definition by arm and will be reported with 95% CI.

    Time frame: Up to 5 years

  3. Clinical benefit rate (CBR)

    CBR will be defined as CR, PR, or stable disease per RECIST v 1.1. CBR will be calculated based on the definition by arm and will be reported with 95% CI.

    Time frame: Up to 5 years

  4. Duration of response (DOR)

    DOR will be assessed by RECIST v1.1. DOR will be characterized with the method of Kaplan-Meier and will be compared between the two treatment arms using stratified log-rank test. The HR will be estimated, and a 95% CI will be reported.

    Time frame: From the first occurrence of a documented objective response to disease progression or death, whichever occurs first, assessed up to 5 years

  5. Incidence of adverse events (AEs)

    AEs will be graded using National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0. The percentage of patients with toxicities will be tabulated. The 90% CI for the true probability of observing toxicity of ≥ grade 4 on a given arm will be no wider than 12.3 %. The probability of observing ≥ 1 toxicity on a given arm with a true rate of 1% is 85.5%.

    Time frame: Up to 30 days after last dose of study drug

Other outcomes

  1. Change in National Comprehensive Cancer Network/Functional Assessment of Cancer Therapy Bladder Symptom Index-18 (FBISI-18) summary score

    Change in patient reported FBISI-18 score will be compared between arms using a two-sample t-test. Assessment time will be considered as a continuous variable if there is a linear trend in quality of life (QOL) assessments over time or a set of dummy variables if a non-linear trend exists. Patient demographics and disease characteristics will be adjusted in the mixed effect model. A t-test will be performed to explore change of FBISI-18 summary score.

    Time frame: At baseline and at 3, 6 and 12 months

  2. Change in Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) summary score

    Change in patient reported FACIT-F score will be compared between arms using a two-sample t-test. Mixed effect models will be constructed to estimate the time profile of FACIT-F in the two arms and to evaluate treatment-by-time interactions. Assessment time will be considered as a continuous variable if there is a linear trend in QOL assessments over time or a set of dummy variables if a non-linear trend exists. Patient demographics and disease characteristics will be adjusted in the mixed effect model.

    Time frame: At baseline and at 3, 6 and 12 months

  3. Change in quality-adjusted survival (assessed by the European Quality of Life Five Dimension Five Level scale [EQ-5D-5L]).

    Change in patient reported EQ-5D-5L will be compared between the arms using a two-sample t-test. Quality-adjusted survival (assessed by the EQ-5D-5L), will be analyzed with quality-adjusted time without symptoms or toxicity.

    Time frame: At baseline and at 3, 6 and 12 months

07

Study locations

161 of 163 sites recruiting

Showing the first 100 of 163 sites. Choose a country and city above to see the rest.

08

References and documents

Individual participant data

Plan to share: Yes — NCI is committed to sharing data in accordance with NIH policy. For more details on how clinical trial data is shared, access the link to the NIH data sharing policy page.

Data sharing details ↗ · grants.nih.gov

No publications or documents are linked to this record.

09

Timeline

5 registry updates since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Dec 2025 (actual). Primary completion is estimated for Dec 2030, 60 months after the start.

Of 28 phase 3 interventional studies under Carcinoma, Transitional Cell, half reached primary completion within 56 months of starting (the median), counting those still running; a quarter within 24 and three quarters within 111. This study's planned 60 months is close to that.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 26, 2024
First posted
Jul 29, 2024
StartActual
Dec 2, 2025
Primary completionEst.
Dec 31, 2030
CompletionEst.
Dec 31, 2030
Last update
Nov 4, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Sites
3 sites added, 1 site removed
Show 3 added (3 United States)
  • Vandalia Health/CAMC Institute for Academic Medicine · Charleston, United States
  • Dartmouth Cancer Center - North · Saint Johnsbury, United States
  • Minnesota Oncology - Edina · Edina, United States
Show 1 removed
  • West Virginia University Charleston Division · Charleston, United States
across 3 updates, Oct 1, 2026 – Nov 4, 2026
Eligibility
3 criteria edited
What changed in the criteria
  • EditedPatient must have histologically (or based on urine cytology) 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% conventional urothelial histology). NOTE: Pure non-urothelial histology is excluded
  • EditedPatient must not have history of grade 3 or higher-4 immune-related adverse events on prior anti-PD1/L1, except for endocrinopathies on adequate hormone therapy repletion and/or clinically insignificant laboratory abnormalities
  • ChangedBefore 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.Now Patient must not have a known genetic UGT1A1 *28/*28 or *6/*6 homozygous variant genotype. Patients with homozygous variant types are considered poor metabolizers and are at higher risk for severe adverse events when compared to wild-type. Patients with heterozygous UGT1A1 variants (i.e. *1/*28 or *1/*6) are eligible and should be counseled accordingly and be very closely monitored if randomized to the sacituzumab govitecan arm
Nov 4, 2026
Site contacts
Changed at 2 sites. See the sites
Show 2 sites
  • West Virginia University Charleston Division · Charleston, United StatesContact none listed→C•••@vandaliahealth.org
  • Cancer Center at Saint Joseph's · Phoenix, United StatesContact person changed (no phone or email listed)
across 2 updates, Sep 29, 2026 – Nov 4, 2026
Show all 5 updates
  1. Nov 4, 2026
    1 site added
    Show site
    • Minnesota Oncology - Edina · Edina, United States
    Eligibility 3 criteria edited
    What changed in the criteria
    • EditedPatient must have histologically (or based on urine cytology) 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% conventional urothelial histology). NOTE: Pure non-urothelial histology is excluded
    • EditedPatient must not have history of grade 3 or higher-4 immune-related adverse events on prior anti-PD1/L1, except for endocrinopathies on adequate hormone therapy repletion and/or clinically insignificant laboratory abnormalities
    • ChangedBefore 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.Now Patient must not have a known genetic UGT1A1 *28/*28 or *6/*6 homozygous variant genotype. Patients with homozygous variant types are considered poor metabolizers and are at higher risk for severe adverse events when compared to wild-type. Patients with heterozygous UGT1A1 variants (i.e. *1/*28 or *1/*6) are eligible and should be counseled accordingly and be very closely monitored if randomized to the sacituzumab govitecan arm
    Site contacts Changed at 1 site. See the sites
    Show the site
    • Cancer Center at Saint Joseph's · Phoenix, United StatesContact person changed (no phone or email listed)
  2. Oct 5, 2026
    1 site added
    Show site
    • Dartmouth Cancer Center - North · Saint Johnsbury, United States
  3. Oct 1, 2026
    1 site added, 1 site removed
    Show site
    • Vandalia Health/CAMC Institute for Academic Medicine · Charleston, United States
    Show 1 removed
    • West Virginia University Charleston Division · Charleston, United States
  4. Sep 30, 2026
    Minor edits only
    + 1 other change: verification date
  5. Sep 29, 2026
    Site contacts Changed at 1 site. See the sites
    Show the site
    • West Virginia University Charleston Division · Charleston, United StatesContact none listed→C•••@vandaliahealth.org

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT06524544
Responsible party
Sponsor
First posted
Jul 29, 2024
Start date
Dec 2, 2025
Primary completion
Dec 31, 2030 (estimated)
Completion
Dec 31, 2030 (estimated)
Last update
Nov 4, 2026

Study contacts

Monika Joshi
principal investigator · ECOG-ACRIN Cancer Research Group

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Discussion

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Studies of the drugs tested here: Pembrolizumab · Sacituzumab govitecan

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