Phase II Trial of Intravesical Gemcitabine and MK-3475 (Pembrolizumab) in the Treatment of Patients With BCG-Unresponsive Non-Muscle Invasive Bladder Cancer

  • STATUS
    Recruiting
  • days left to enroll
    56
  • participants needed
    161
  • sponsor
    National Cancer Institute (NCI)
Updated on 22 October 2022

Summary

This phase II trial studies the effect of adding pembrolizumab to gemcitabine in treating patients with non-muscle invasive bladder cancer whose cancer does not respond to Bacillus Calmette-Guerin (BCG) treatment. Chemotherapy drugs, such as gemcitabine, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the patient's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Adding pembrolizumab to gemcitabine may delay the return of BCG-unresponsive bladder cancer for longer period compared to gemcitabine alone.

Description

PRIMARY OBJECTIVES:

I. Estimate the 6-month complete response rate of treatment with intravesical gemcitabine hydrochloride (gemcitabine) in combination with MK-3475 (pembrolizumab) in patients with Bacillus Calmette-Guerin (BCG)-unresponsive non-muscle invasive bladder cancer (NMIBC) that have a carcinoma in situ (CIS) component.

II. Estimate the 18 month event-free survival (EFS) rate for all patients with BCG-unresponsive NMIBC receiving intravesical gemcitabine in combination with MK-3475 (pembrolizumab).

SECONDARY OBJECTIVES:

I. To characterize the safety profile of the combination of intravesical gemcitabine with MK-3475 (pembrolizumab) with BCG-unresponsive NMIBC (CIS or high grade Ta and T1 with or without a CIS component).

II. To estimate progression-free survival (PFS) of patients with BCG-unresponsive NMIBC treated with intravesical gemcitabine in combination with MK-3475 (pembrolizumab).

III. To estimate overall survival (OS) of patients with BCG-unresponsive NMIBC treated with intravesical gemcitabine in combination with MK-3475 (pembrolizumab).

IV. To estimate cystectomy-free survival of patients with BCG-unresponsive NMIBC treated with intravesical gemcitabine in combination with MK-3475 (pembrolizumab).

V. To estimate recurrence-free survival (RFS) for patients with a CIS component only and those without a CIS component.

EXPLORATORY OBJECTIVES:

I. To assess correlation between tumor mutation burden (TMB) and EFS and 6-month complete response (CR) rate.

II. To assess correlation between specific genomic alterations (single nucleotide variant [SNV] and copy number gains/loss) and EFS and 6-month complete response rate.

III. To assess correlation between APOBEC mutational signature and EFS and 6-month complete response rate.

IV. To assess correlation between immune gene signatures (IGS) and EFS and 6-month complete response rate.

V. To assess correlation between PD-L1 ribonucleic acid (RNA) levels and EFS and 6-month complete response rate.

VI. To assess correlation between RNA molecular subtype and EFS and 6-month complete response rate.

VII. To assess correlation between intratumoral T-cell receptor (TCR) clonality and EFS and 6-month complete response rate.

VIII. To assess correlation between changes in peripheral blood TCR clonality and EFS and 6-month complete response rate.

IX. To assess EFS in patients with urine cell free deoxyribonucleic acid (DNA) (cfDNA) + versus (vs.) patients with cfDNA.

OUTLINE

INDUCTION: Patients receive pembrolizumab intravenously (IV) over 25-40 minutes on day 1 of cycles 1-4. Patients also receive gemcitabine hydrochloride intravesically on days 1, 8 and 15 of cycles 1 and 2. Treatment repeats every 3 weeks for 4 cycles in the absence of disease progression or unacceptable toxicity.

MAINTENANCE: Beginning cycle 5, patients with no evidence of disease after induction receive pembrolizumab IV over 25-40 minutes and gemcitabine intravesically on day 1. Treatment repeats every 3 weeks for 12 cycles in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients with evidence of disease (recurrence or progression) or stop study treatment to receive non-protocol treatment during induction are followed up every 6 months for 5 years. Patients who go off treatment due to any reason other than recurrence/progression or receiving subsequent non-protocol treatment during induction will go to clinical follow-up until evidence of disease progression/recurrence. Thereafter, patients are followed up every 6 months until 5 years from registration. Patients who complete scheduled maintenance treatment according to protocol therapy are followed up every 3 months for 2 years and then every 6 months for 3 years until disease progression/recurrence or receiving subsequent non-protocol treatment. Thereafter, patients are followed up every 6 months until 5 years from registration. Patients who have evidence of disease during maintenance therapy are followed up every 6 months until 5 years from registration.

Details
Condition Bladder Urothelial Carcinoma In Situ, Infiltrating Bladder Mixed Carcinoma, Stage 0a Bladder Cancer AJCC v8, Stage 0is Bladder Cancer AJCC v8, Stage I Bladder Cancer AJCC v8
Treatment gemcitabine hydrochloride, Gemcitabine, Pembrolizumab
Clinical Study IdentifierNCT04164082
SponsorNational Cancer Institute (NCI)
Last Modified on22 October 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

High grade Ta, T1 or CIS urothelial carcinoma. Accrual of patients with Ta or T1 disease may be closed to ensure adequate patients enrollment to meet the primary endpoint
Persistent disease (defined as not achieving disease free status) after completing therapy with at least induction BCG (>= 5 doses) and the first round of maintenance or second induction course (>= 2 doses). The subsequent round of BCG, either maintenance or repeat induction, must be given within 6 months of initial induction BCG
Persistent high risk NMIBC (T1, high grade Ta and/or CIS) must be within 9 months of the last BCG instillation despite having received adequate BCG as defined above
High grade T1 after completing therapy with at least induction BCG (>= 5 doses) or
Registration must be within 12 months of last BCG instillation
after completing therapy with at least induction BCG (>= 5 doses) and first
round of maintenance or second induction course (>= 2 doses). The subsequent
The recurrence must be within 6 months of the last BCG dose
round of BCG, either maintenance or repeat induction, must be given within 6
months of initial induction BCG
All visible tumor must be completely resected 60 days prior to registration (residual pure CIS is permitted)
Disease recurrence (T1) must be within 9 months of the last BCG instillation despite having received adequate BCG as defined above
Registration must be within 12 months of last BCG instillation
Patients must be deemed unfit for radical cystectomy by the treating physician or
Patients who are disease free at 6 months after starting BCG but have high grade
refuse radical cystectomy
recurrence (T1, Ta, CIS) while on maintenance therapy would be eligible
Registration must be within 12 months of last maintenance BCG instillation
Patients must have had imaging with computed tomography (CT) or magnetic resonance imaging (MRI) abdomen/pelvis within 90 days of registration demonstrating no evidence of metastasis
A woman of childbearing potential (WOCBP) must not have a positive urine pregnancy test within 7 days prior to registration. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required
Not pregnant and not nursing, because this study involves an agent that has known genotoxic, mutagenic and teratogenic effects
Patients must not be pregnant or breastfeeding or expecting to conceive or father children within the projected duration of the study, starting with registration through the last dose of treatment
Age >= 18 years
All patients must have histologically confirmed urothelial cancer of the bladder within 60 days prior to registration
Eastern Cooperative Oncology Group (ECOG) performance status 0-2
Absolute neutrophil count (ANC) >= 1,500/mm^3
All patients must have had a cystoscopy (or transurethral resection of bladder tumor [TURBT] with complete resection) without papillary tumor and negative urinary cytology within 28 days of registration. (positive cytology is allowed in patients with CIS)
Platelet count >= 100,000/mm^3
All patients with T1 tumors must undergo a re-staging TURBT within 60 days of
Hemoglobin >= 9.0 g/dL
registration. There must be uninvolved muscularis propria present in the re-
Creatinine =< 1.5 x upper limit of normal (ULN)
staging TURBT. The initial TURBT prior to re-staging TURBT may be greater than
In patients with creatinine > 1.5 x ULN, if measured or calculated creatinine clearance > 30 mL/min, then patient is eligible
Total bilirubin =< 1.5 x ULN
days prior to registration
In patients with a total bilirubin > 1.5 x ULN, if direct bilirubin < 1.0 X ULN, then patient is eligible
Aspartate aminotransferase (AST)/ alanine aminotransferase (ALT) =< 2.5 x ULN
On effective anti-retroviral therapy with undetectable viral load within 6 months of registration
Patients with human immunodeficiency virus (HIV) are eligible with the following
Women and men of reproductive potential should agree to use an appropriate method of birth control throughout their participation in this study due to the teratogenic potential of the therapy utilized in this trial. Include as applicable: Appropriate methods of birth control include abstinence, oral contraceptives, implantable hormonal contraceptives or double barrier method (diaphragm plus condom)

Exclusion Criteria

Patients must not be currently participating in or have participated in a study of an investigational agent or have used an investigational device within 4 weeks prior to study registration
Note: Participants who have entered the follow-up phase of an investigational study may participate as long as it has been more than 4 weeks after the last dose of the previous investigational agent at time of registration
Patients must not have undergone prior allogeneic hematopoietic stem cell transplantation within the last 5 years prior to registration. (Participants who have had a transplant greater than 5 years ago are eligible as long as there are no symptoms of graft versus host disease [GVHD])
Patients must not have received prior systemic anti-cancer therapy including investigational agents within 4 weeks prior to treatment
Note: Participants must have recovered from all adverse events (AEs) due to previous therapies to =< grade 1 or baseline. Participants with =< grade 2 neuropathy may be eligible
Note: If participant received major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting study treatment
Patients must not have received radiation therapy to the lung that is > 30 Gy within 6 months prior to trial registration
Patients cannot have had a history of urothelial carcinoma in the ureters or prostatic urethra 24 months prior to registration
Patients must not have a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior to registration
Patients must not have prior therapy with an anti-PD-1, anti-PD-L1, or anti PD L2
Note: Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is not considered a form of systemic treatment and is allowed
agent or with an agent directed to another stimulatory or co-inhibitory T-cell
receptor (e.g., CTLA-4, OX 40, CD137)
Mixed variant histology (adenocarcinoma, squamous cell carcinoma) is eligible, but pure variant histology is ineligible
Patients must not have active tuberculosis
Patients must not have a history of idiopathic pulmonary fibrosis or organizing pneumonia
Patients must not have a history of (non-infectious) pneumonitis that required steroids or have current pneumonitis
Patients must not have been treated with antibiotics for an active infection within 14 days prior to registration. Prophylactic antibiotics are permitted. Treatment for a urinary tract infection (UTI) is allowed but must be deemed adequately treated by the treating physician prior the start of cycle 1 (C1) day 1 (D1)
HIV-infected participants must not have a history of Kaposi sarcoma and/or multicentric Castleman disease
Patients must not have a known additional malignancy that has had progression or has required active treatment in the last three years. Exceptions include basal or squamous cell carcinoma of the skin that has undergone potentially curative therapy or in situ cervical cancer. A history of prostate cancer that was treated with definitive intent is allowed, provided that the prostate-specific antigen (PSA) is undetectable for at least 1 year while off androgen deprivation therapy
Patients must not have received prior radiotherapy within 2 weeks of study
Patients must not have known active CNS metastases and/or carcinomatous meningitis. Participants with previously treated brain metastases may participate provided they are radiologically stable, i.e., without evidence of progression for at least 4 weeks by repeat imaging (note that the repeat imaging should be performed during study screening), clinically stable and without requirement of steroid treatment for at least 14 days prior to first dose of study treatment
registration. Participants must have recovered from all radiation-related
Physicians should consider whether any of the following may render the patient inappropriate for this protocol
Patients must not have severe hypersensitivity (>= grade 3) to pembrolizumab and/or any of its excipients
toxicities, not require corticosteroids, and not have had radiation
Patients must not have an active infection requiring systemic therapy
pneumonitis
Patients must not have a known history of hepatitis B (defined as hepatitis B surface antigen [HBsAg] reactive) or known active hepatitis C virus (defined as hepatitis C virus [HCV] ribonucleic acid [RNA] [qualitative] is detected) infection
Note: No testing for hepatitis B and hepatitis C is required unless mandated by a local health authority
Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the participant's participation for the full duration of the study, or is not in the best interest of the participant to participate, in the opinion of the treating investigator
Patients must not have a known psychiatric or substance abuse disorder that would
interfere with the participant's ability to cooperate with the requirements of
the study
Patients must not have had an active autoimmune disease requiring systemic treatment within 24 months prior to registration. Autoimmune diseases include, but not limited to, lupus erythematosus, rheumatoid arthritis, inflammatory bowel disease, antiphospholipid syndrome, Wegener's granulomatosis, Sjogren's syndrome, Bell's palsy, Guillain-Barre syndrome, multiple sclerosis, autoimmune thyroid disease, vasculitis, or glomerulonephritis
Patients must not have received live vaccines within 30 days of study drug
administration. Examples of live vaccines include, but are not limited to, the
following: measles, mumps, rubella, varicella/zoster (chicken pox), yellow
fever, rabies, Bacillus Calmette-Guerin (BCG), and typhoid vaccine. Seasonal
influenza vaccines for injection are generally killed virus vaccines and are
allowed; however, intranasal influenza vaccines (e.g., FluMist) are live
attenuated vaccines and are not allowed. COVID-19 vaccinations are permitted
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