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Urinary Bladder Neoplasms

Carcinoma, Transitional Cell

Non-Muscle Invasive Bladder Neoplasms

Neoplasms, Glandular and Epithelial

Neoplasms by Histologic Type

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Female Urogenital Diseases and Pregnancy Complications

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Pharmaceutical Solutions

Pembrolizumab

BCG Vaccine

Vaccines

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Immune Checkpoint Inhibitors

Adjuvants, Immunologic

Immunologic Factors

PRE-INDUCTION PHASE: Patients receive pembrolizumab intravesically once on day -14.

INDUCTION PHASE: Patients receive BCG solution intravesically once weekly for 6 weeks at weeks 0-5 and pembrolizumab intravesically every 2 weeks at weeks 0, 2, and 4.

MAINTENANCE PHASE: Beginning 2 weeks after the last dose of BCG solution, patients receive pembrolizumab intravesically every 2 weeks for 12 weeks at weeks 7, 9, 11, 13, 15, and 17 for a total of 6 doses. Patients then receive pembrolizumab intravesically every 4 weeks at weeks 21, 25, 29, 33, 37, 41, 45, and 49 for a total of 8 doses.

BCG Solution

Laboratory Biomarker Analysis

Pharmacological Study

Joshua Meeks

The purpose of this study is to evaluate the efficacy (the effect of drug on tumor) and the tolerability (the effect of drug on the body) of pembrolizumab, when given as a single agent in patients with bladder tumors. Another purpose of the study is to see what tumor characteristics are associated with increased efficacy of the pembrolizumab. Pembrolizumab (MK-3475) is an antibody (a human protein that sticks to a part of the tumor and/or immune cells) designed to allow the body's immune system to work against tumor cells. Pembrolizumab is Food and drug Administration (FDA) approved for the treatment of advanced melanoma (a type of skin cancer) and some types of lung cancer. It is not yet approved by the United States Food and Drug Administration (USFDA) for bladder cancer, hence it is considered an investigational agent for this disease.

PRIMARY OBJECTIVES:

I. To determine the maximum tolerated dose (MTD) of the study drug (pembrolizumab \[MK-3475\]) when administered intravesically in combination with BCG in patients with high risk or BCG-refractory non-muscle-invasive bladder cancer (up to the individual maximum tolerated dose of each drug alone).

SECONDARY OBJECTIVES:

I. To describe the dose limiting toxicities (DLTs) of MK-3475 in combination with BCG in this population.

II. To assess the safety and tolerability of the combination of MK-3475 and BCG in subjects with high risk or BCG-refractory non-muscle-invasive bladder cancer.

TERTIARY OBJECTIVES:

I. To characterize the pharmacokinetics (PK) of MK-3475 in both blood and urine when administered intravesically in combination with BCG.

II. To measure humoral and cellular responses to tumor antigens on serum and urine samples by measuring the levels of cytokines (ie, interleukin \[IL\]-2, IL-6, IL-8, IL-10, IL-18, interferon gamma \[IFN-gamma\] and tumor necrosis factor alpha \[TNF-alpha\]) and peripheral blood lymphocyte phenotype throughout treatment.

III. To determine the response rate in terms of complete pathologic response in this population assessed when patient undergoes cystoscopies (weeks 17, 25, 33, 41, and 49 if applicable).

IV. To document the progression rate associated with the combination of intravesical MK-3475 and BCG in patients with high risk or BCG-refractory non-muscle-invasive bladder cancer.

V. To evaluate the relationship between tumor biomarkers programmed cell death (PD)-ligand (L)1, PD-L2, PD-1 as defined by immunohistochemistry (IHC) and adverse effects and recurrence rate.

OUTLINE: This is a dose-escalation study of pembrolizumab.

PRE-INDUCTION PHASE: Patients receive pembrolizumab intravesically once on day -14.

INDUCTION PHASE: Patients receive BCG solution intravesically once weekly for 6 weeks at weeks 0-5 and pembrolizumab intravesically every 2 weeks at weeks 0, 2, and 4.

MAINTENANCE PHASE: Beginning 2 weeks after the last dose of BCG solution, patients receive pembrolizumab intravesically every 2 weeks for 12 weeks at weeks 7, 9, 11, 13, 15, and 17 for a total of 6 doses. Patients then receive pembrolizumab intravesically every 4 weeks at weeks 21, 25, 29, 33, 37, 41, 45, and 49 for a total of 8 doses.

After completion of study treatment, patients are followed up every 3 months for 2 years, every 4 months for 2 years, every 6 months for 2 years, and then annually thereafter.

Pembrolizumab and BCG Solution in Treating Patients With Recurrent Non-Muscle-Invasive Bladder Cancer

A Phase 1 Dose-Escalation Study of Intravesical MK-3475 and Bacillus Calmette-Guerin (BCG) in Subjects With High Risk and BCG-Refractory Non-Muscle-Invasive Bladder Cancer

Blood will be collected for measurement of cytokines in order to explore humoral and cellular responses to MK-3475 and BCG treatments. Cytokines will be measured using ELISA assays.

Urine will be collected for measurement of cytokines in order to explore humoral and cellular responses to MK-3475 and BCG treatments. Cytokines will be measured using ELISA assays.

Expression of tumor biomarker PD-L1 as defined by immunohistochemistry (IHC) will be assessed and results will be correlated with adverse effects and recurrence rate. This evaluation will be performed on archived tissue samples obtained at baseline and on fresh tissue from any subsequent biopsies.

Expression of tumor biomarker PD-1 as defined by immunohistochemistry (IHC) will be assessed and results will be correlated with adverse effects and recurrence rate. This evaluation will be performed on archived tissue samples obtained at baseline and on fresh tissue from any subsequent biopsies.

Expression of tumor biomarker PD-L2 and immune cell infiltration as defined by immunohistochemistry (IHC) will be assessed and results will be correlated with adverse effects and recurrence rate. This evaluation will be performed on archived tissue samples obtained at baseline and on fresh tissue from any subsequent biopsies.

Peripheral blood will be taken for evaluation of a lymphocyte profile which will be analyzed using automated flow cytometric techniques and will measure humoral and cellular response to tumor antigens.

Blood serum concentrations of MK-3475 will be evaluated during pre-induction (week -2) at baseline (0 minutes) and at 15, 30, and 60 minutes post-dosing for determination of plasma PK parameters.

Blood serum concentrations of MK-3475 will be evaluated during induction (week 4) at baseline (0 minutes) and at 15, 30, and 60 minutes post-dosing for determination of plasma PK parameters.

Urine concentrations of MK-3475 will be evaluated during induction (week -2) at 30 minutes prior to dosing and 2 hours post-dosing for determination of urine concentration-time profile.

Urine concentrations of MK-3475 will be evaluated during induction (week 4) at 30 minutes prior to dosing and 2 hours post-dosing for determination of urine concentration-time profile.

Determine the response rate in terms of complete pathologic response in this population will be assessed when the patient undergoes cystoscopies. Patients will be examined via bladder cystoscopy and may undergo biopsy for pathological confirmation if needed. Responses will be categorized as yes or no for bladder recurrence.

The progression rate of the tumor will be defined as positive transurethral resection and/or biopsy.

Determine the MTD of the study drug (MK-3475) when administered intravesically in combination with BCG in patients with high risk or BCG-refractory non-muscle-invasive bladder cancer (up to the individual maximum tolerated dose of each drug alone). The MTD will be defined as the highest dose that causes dose limiting toxicities (DLTs) in \<2 of 6 patients graded by the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.03.

Evaluate the DLTs of MK-3475 in combination with BCG in this population. DLTs will be defined as significant adverse events occurring during the DLT observation period (2 week pre-induction phase and the 7 weeks of induction phase) that is related to either drug or the combination. DLT will be evaluated according to CTCAE v 4.03 criteria.

Determine the safety and tolerability of the combination of MK-3475 and BCG in subjects with high risk or BCG-refractory non-muscle-invasive bladder cancer by evaluating the number, frequency, and severity of adverse events using CTCAE v 4.03. This table provides the number of patients with their worst grade toxicity for any AEs a patient experienced and AEs that were found to have a possible, probable, or definite attribution with at least one of the study treatment agents.

Merck Sharp & Dohme LLC

National Cancer Institute (NCI)

Northwestern University

Joshua Meeks, MD, PhD

PRE-INDUCTION PHASE: Patients receive pembrolizumab intravesically once on day -14.

INDUCTION PHASE: Patients receive BCG solution intravesically once weekly for 6 weeks at weeks 0-5 and pembrolizumab intravesically every 2 weeks at weeks 0, 2, and 4.

MAINTENANCE PHASE: Beginning 2 weeks after the last dose of BCG solution, patients receive pembrolizumab intravesically every 2 weeks for 12 weeks at weeks 7, 9, 11, 13, 15, and 17 for a total of 6 doses. Patients then receive pembrolizumab intravesically every 4 weeks at weeks 21, 25, 29, 33, 37, 41, 45, and 49 for a total of 8 doses.

BCG Solution: Given intravesically

Laboratory Biomarker Analysis: Correlative studies

Pembrolizumab: Given intravesically

Pharmacological Study: Correlative studies

Phase I: Cohort 1 (1 mg/kg Pembrolizumab, 50 mg BGC)

Phase I: Cohort 2 (2 mg/kg Pembrolizumab, 50 mg BGC)

Total

Age, Categorical

Sex: Female, Male

Ethnicity (NIH/OMB)

Race (NIH/OMB)

The TNM staging system is the common language in which oncology health professionals can communicate on the cancer extent for individual patients as a basis for decision making on treatment management and individual prognosis but can also be used, to inform and evaluate treatment guidelines. Tumors confined to the mucosa and invading the lamina propria are classified as stage Ta and T1, respectively, according to the Tumour, Node, Metastasis (TNM) classification system. Intra-epithelial, high-grade (HG) tumors confined to the mucosa are classified as CIS (Tis).

Cancer Stage at Baseline

PRE-INDUCTION PHASE: Patients receive pembrolizumab intravesically once on day -14.

INDUCTION PHASE: Patients receive BCG solution intravesically once weekly for 6 weeks at weeks 0-5 and pembrolizumab intravesically every 2 weeks at weeks 0, 2, and 4.

MAINTENANCE PHASE: Beginning 2 weeks after the last dose of BCG solution, patients receive pembrolizumab intravesically every 2 weeks for 12 weeks at weeks 7, 9, 11, 13, 15, and 17 for a total of 6 doses. Patients then receive pembrolizumab intravesically every 4 weeks at weeks 21, 25, 29, 33, 37, 41, 45, and 49 for a total of 8 doses.

BCG Solution: Given intravesically Laboratory Biomarker Analysis: Correlative studies Pembrolizumab: Given intravesically Pharmacological Study: Correlative studies

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Pembrolizumab and BCG Solution in Treating Patients With Recurrent Non-Muscle-Invasive Bladder Cancer	NCT02808143	Recurrent Bladd... Stage 0a Bladde... Stage 0is Bladd... Stage I Bladder...	BCG Solution Laboratory Biom... Pembrolizumab Pharmacological...	18 Years -	Northwestern University
Pembrolizumab and BCG Solution in Treating Patients With Recurrent Non-Muscle-Invasive Bladder Cancer	NCT02808143	Recurrent Bladd... Stage 0a Bladde... Stage 0is Bladd... Stage I Bladder...	BCG Solution Laboratory Biom... Pembrolizumab Pharmacological...	18 Years -	Northwestern University

Spots Global Cancer Trial Database for stage 0a bladder urothelial carcinoma