About this trial
This study will determine whether the presence of DNA repair deficiency in the form of alterations in the genes ATM, CDK12 or CHEK2 predicts for a high likelihood of responding to the use of intermittent high dose testosterone. This therapy may result in responses in tumors which are genetically unstable because of DNA repair deficiency and this is a prospective study to test that hypothesis
Eligibility criteria
Qualifiers
Signed informed consent form (ICF) providing agreement to adhere to the dosing schedule, report for all trial visits and authorization, use and release of health and research trial information
Histologically or cytologically confirmed adenocarcinoma of the prostate
Ongoing gonadal androgen deprivation therapy with gonadotropin-releasing hormone (GnRH) analogues, antagonists or orchiectomy. Patients who have not had an orchiectomy must be maintained on effective GnRH analogue/antagonist therapy
PSA level of at least 2 ng/ml that has risen on at least 2 successive occasions at least 1 week apart.
Disqualifiers
Currently receiving active therapy for other neoplastic disorders will not be eligible.
Histologic evidence of small cell carcinoma (morphology alone - immunohistochemical evidence of neuroendrocrine differentiation without morphologic evidence is not exclusionary)
Known parenchymal brain metastasis
Liver metastases
Trial design
Treatments tested in this trial
- High dose testosterone