Conditions: Prostate Cancer
Keywords: Digoxin Recurrent Prostate Cancer Prostate Specific Antigen
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 16
Healthy volunteers: no

Brief summary:
The purpose of this study is to assess the effectiveness of dioxin on prohibiting prostate cancer progression as measured by PSADT (prostate-specific antigen doubling time).

Detailed description:
This is a pilot phase II, open labeled single center study to assess the efficacy of digoxin on inhibiting PCa progression as measured by PSADT. The participants will take study drug digoxin, which is approved by FDA for the treatment of CHF, 125 or 250 mcg orally daily, titrated to the level of 0.8 - 2 ng/ml for total of 6 cycles (4 weeks/cycle). The lower dose of digoxin (such as 125 mcg/day) will be chosen if serum level reaches 0.8 ng/ml already. Patients may continue another 6 cycles if evident of clinical benefit.

Arms:
arm 1: None

Interventions: intervention 1: Digoxin
Intervention descriptions: intervention 1: The participants will take study drug digoxin, which is approved by FDA for the treatment of CHF, 125 or 250 mcg orally daily, titrated to the level of 0.8 - 2 ng/ml for total of 6 cycles (4 weeks/cycle). The lower dose of digoxin (such as 125 mcg/day) will be chosen if serum level reaches 0.8 ng/ml already. Patients may continue another 6 cycles if evident of clinical benefit.

It is possible that some patients may need to receive 500 mcg per day to reach this targeted drug level. No further titration will be allowed beyond this FDA approved digoxin dose.

Protocol document: