Active Surveillance, Bleomycin, Etoposide, Carboplatin or Cisplatin in Treating Pediatric and Adult Patients With Germ Cell Tumors

Description

PRIMARY OBJECTIVES:

I. To evaluate whether a strategy of complete surgical resection followed by surveillance can maintain an overall survival rate of at least 95.7% at two years for pediatric, adolescent and adult patients with stage I (low risk) malignant germ cell tumors, and at least 95% for patients with ovarian pure immature teratoma.

II. To compare the event-free survival of a carboplatin versus (vs.) cisplatin-based regimen in the treatment of pediatric, adolescent and young adult patients with standard risk non-seminomatous germ cell tumors.

IIa. To compare the event free survival (EFS) of a carboplatin-based regimen (carboplatin [C] etoposide [E] bleomycin [b]) vs. a cisplatin-based regimen (cisplatin [P]Eb) in children (less than 11 years in age) with standard risk germ cell tumors (GCT).

IIb. To compare the EFS of a carboplatin-based regimen (BEC) vs. a cisplatin-based regimen (BEP) in adolescents and young adults (ages 11 – < 25 years) with standard risk GCT.

SECONDARY OBJECTIVES:

I. To compare the incidence of ototoxicity in children, adolescents and young adults with standard risk germ cell tumors treated with carboplatin-based chemotherapy as compared to cisplatin-based chemotherapy.

II. To refine and validate a novel patient-reported measure of hearing outcomes for children, adolescents and young adults with standard risk germ cell tumors.

EXPLORATORY OBJECTIVES:

I. To prospectively determine the correlation of tumor marker decline (alpha-fetoprotein [FP] and beta-human chorionic gonadotropin [HCG]) with clinical outcome in low and standard risk germ cell tumor patients.

II. To compare self-reported peripheral neuropathy and other patient-reported outcomes between children, adolescents and young adults with standard risk germ cell tumors treated with carboplatin-based chemotherapy as compared to cisplatin-based chemotherapy.

III. Assess the relationship between hearing loss as measured by audiometry with the effects of tinnitus as assessed on the Adolescent and Young Adult Hearing Screening (AYA-HEARS) instrument.

IV. To evaluate the prognostic significance of serum micro ribonucleic acid (miRNA)s in stage I testicular cancer (seminoma and non-seminoma) patients by collecting clinical data and serum specimens for future analysis.

OUTLINE:

Patients with low-risk stage I grade 2, 3 ovarian immature teratoma or stage I non-seminoma malignant germ cell tumors (MGCT)s undergo observation and can transfer to standard risk arm at time of recurrence if eligibility criteria are met. Patients with stage I seminoma testicular MGCT undergo observation, and those with residual/recurrent disease are treated at the discretion of their physician. Patients undergo computed tomography (CT), magnetic resonance imaging (MRI), and/or chest x-ray as well as blood sample collection throughout the trial to monitor for response and recurrence. Patients may also undergo a tumor biopsy throughout the trial.

Patients with standard risk 1 are randomized into 1 of 2 arms.

ARM I (CEb): Patients receive bleomycin intravenously (IV) over 10 minutes and carboplatin IV over 1 hour on day 1. Patients also receive etoposide IV over 1-2 hours on days 1-5. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo CT, MRI, and/or chest x-ray as well as blood sample collection throughout the trial. Patients may also undergo a tumor biopsy throughout the trial. Patients undergo a pulmonary function test on study.

ARM II (PEb): Patients receive bleomycin IV over 10 minutes on day 1. Patients also receive etoposide IV over 1-2 hours and cisplatin IV over 1-3 hours on days 1-5. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo CT, MRI, and/or chest x-ray as well as blood sample collection throughout the trial. Patients may also undergo a tumor biopsy throughout the trial. Patients undergo a pulmonary function test on study.

Patients with standard risk 2 are randomized into 1 of 2 arms.

ARM III (BEC): Patients receive bleomycin IV over 10 minutes on days 1, 8, and 15, etoposide IV over 1-2 hours on days 1-5, and carboplatin IV over 1 hour on day 1. Treatment repeats every 21 days for up to 3 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo CT, MRI, and/or chest x-ray as well as blood sample collection throughout the trial. Patients may also undergo a tumor biopsy throughout the trial. Patients undergo a pulmonary function test on study.

ARM IV (BEP): Patients receive bleomycin IV over 10 minutes on days 1, 8, and 15, etoposide IV over 1-2 hours on days 1-5, and cisplatin IV over 1-3 hours on days 1-5. Treatment repeats every 21 days for up to 3 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo CT, MRI, and/or chest x-ray as well as blood sample collection throughout the trial. Patients may also undergo a tumor biopsy throughout the trial. Patients undergo a pulmonary function test on study.

After completion of study treatment, patients are followed up every 2 months for 12 months, every 3-6 months to 24 months, every 6 months for years 3-5, and then annually for up to 10 years.