PEnile Cancer Radio- and Immunotherapy CLinical Exploration Study

  • STATUS
    Recruiting
  • End date
    Dec 1, 2022
  • participants needed
    32
  • sponsor
    The Netherlands Cancer Institute
Updated on 2 April 2021

Summary

Patients with advanced penile cancer have a poor prognosis (21% 2-year overall survival from moment of diagnosis) and high morbidity due to progressive locoregional disease.

Translational studies show high rates of infiltrating immune cells and PD-L1 positivity, suggesting that immunotherapy may be beneficial in this disease. Atezolizumab, targeting PD-L1, is active in several cancer types and is generally well-tolerated. This study will investigate whether atezolizumab can be combined with radiotherapy to control locoregional lymph node disease. Furthermore, the activity of atezolizumab in advanced penile cancer patients will be investigated.

Description

Rationale Patients with advanced penile cancer have a poor prognosis (21% 2-year overall survival from moment of diagnosis) and high morbidity due to progressive locoregional disease.

Translational studies show high rates of infiltrating immune cells and PD-L1 positivity, suggesting that immunotherapy may be beneficial in this disease. Atezolizumab, targeting PD-L1, is active in several cancer types and is generally well-tolerated. This study will investigate whether atezolizumab can be combined with radiotherapy to control locoregional lymph node disease. Furthermore, the activity of atezolizumab in advanced penile cancer patients will be investigated.

Objectives
  1. Efficacy of atezolizumab in advanced penile cancer patients.
  2. Feasibility of a protracted schedule of radiotherapy on locoregional disease in combination with immunotherapy for advanced penile cancer

Study design:

Single-center, nonrandomized, Phase 2 study with 2 treatment arms.

Study population:

Men, 18 years of age, with advanced inoperable penile cancer, N=32.

Intervention

All patients will receive atezolizumab, 1200 mg, every 3 weeks, by IV infusion. Patients in group A will additionally receive 33 fractions of 1.5 (locoregional affected lymph nodes) and 1.8 Gy (tumor+margin) irradiation, concurrently with atezolizumab treatment.

Primary endpoint:

Progression-free survival at 1 year.

Main secondary endpoint:

2-year overall survival rate of the complete study population. Percentage of patients who complete the full course of radiotherapy in the radiotherapy/atezolizumab arm.

Nature and extent of the burden and risks associated with participation, benefit and group relatedness: Patients will be treated every 3 weeks with atezolizumab for one year or until loss of clinical benefit. Atezolizumab is generally well tolerated although immune-related toxicity does occur.

Toxicity of combining atezolizumab with a long course of radiotherapy is unknown and may result in increased toxicity. It is unknown whether atezolizumab will induce responses in patients with advanced penile cancer.

Details
Condition Malignant neoplasm of penis
Treatment Arm A: Atezolizumab and Radiotherapy, Arm B: Atezolizumab
Clinical Study IdentifierNCT03686332
SponsorThe Netherlands Cancer Institute
Last Modified on2 April 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Written informed consent, prior to performing any protocol-related procedures, including screening evaluations
Age > 18 years at time of study entry
Advanced histologically documented, squamous cell carcinoma of the penis or distal urethra. Advanced disease is defined as
Distant metastases, OR
LRAPC, defined as a large or inoperable primary tumor (T4), palpable nodes >3cm in diameter or fixed nodes, suspicion of extra-nodal extension or pelvic node involvement (N2/N3)
Arm A: Locoregional disease (with or without distant metastases), likely to derive benefit from locoregional radiotherapy and not previously treated with radiotherapy
Arm B: Benefit of locoregional radiotherapy unlikely OR previously treated with irradiation
World Health Organisation (WHO) performance status of 0 or 1
Life expectancy of > 12 weeks
Adequate normal organ and marrow function as defined below
Haemoglobin 5.6/mmol/L
White blood cell count (WBC) 2 x 109/L
Absolute neutrophil count (ANC) 1.5 x 109/L
Platelet count 100 x 109/L (>100,000 per mm3)
Serum bilirubin 1.5 x institutional upper limit of normal (ULN). This will not apply to subjects with confirmed Gilbert's syndrome, who will be allowed in consultation with a study physician
AST/ALT 2.5 x institutional ULN unless liver metastases are present, in which case it must be 5x ULN
Serum creatinine clearance >30 mL/min by calculation with the Cockcroft-Gault formula (Cockcroft and Gault 1976) or by 24-hour urine collection measurement

Exclusion Criteria

Involvement in the planning and/or conduct of the study (applies to both Roche staff and/or staff at the study site) or previous enrolment in the present study
Participation in another clinical study with an investigational product during the last 4 weeks
Any previous treatment with a PD-1 or PD-L1 inhibitor
History of another primary malignancy except for
Malignancy treated with curative intent and with no known active disease 2 years before the first dose of study drug
Low potential risk of 3-year cancer-specific death (estimated<5%), including adequately treated non-melanoma skin cancer without evidence of disease, adequately treated carcinoma in situ without evidence of disease, or localized prostate cancer treated with curative intent and absence of prostate-specific antigen (PSA) relapse or incidental prostate cancer (Gleason score 7 and PSA < 10 ng/mL) undergoing active surveillance
Treatment with the last dose of any systemic anti-cancer therapy 21 days prior to the first dose of study drug. Local treatment of isolated lesions for palliative intent is acceptable (eg, local surgery or radiotherapy)
Current or prior use of immunosuppressive medication within 14 days before the first dose of study drug, with the exceptions of intranasal and inhaled corticosteroids or systemic corticosteroids at doses 10 mg/day of prednisone, or an equivalent corticosteroid
History of primary immunodeficiency, allogeneic organ transplant or autoimmune disease, including - but not limited to - myasthenia gravis, myositis, autoimmune hepatitis, systemic lupus erythematosus, rheumatoid arthritis, inflammatory bowel disease, vascular thrombosis associated with antiphospholipid syndrome, Wegener's granulomatosis, Sjgren's syndrome, Guillain-Barr syndrome, multiple sclerosis, vasculitis, or glomerulonephritis. Patients with a history of autoimmune-related hypothyroidism on a stable dose of thyroid replacement hormone will not be excluded from this study. Patients with controlled diabetes mellitus type I on a stable dose of insulin regimen may be eligible for this study
Uncontrolled significant intercurrent illness, including - but not limited to - ongoing or active infection (including acute or chronic hepatitis B, hepatitis C or human immunodeficiency virus (HIV)), symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, active peptic ulcer disease or gastritis, active bleeding diatheses or psychiatric illness/social situations that would limit compliance with study requirements or compromise the ability of the subject to give written informed consent
Known active tuberculosis
Any condition that, in the opinion of the investigator, would interfere with evaluation of study treatment or interpretation of patient safety or study results
Brain metastases or leptomeningeal disease. Inclusion of patients with brain metastases is allowed if patients have been adequately treated, are not symptomatic and show no signs of progression on brain imaging 28 days after completion of treatment (including surgery, radiotherapy or treatment with systemic corticosteroids)
Subjects with uncontrolled seizures
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