Plant derivatives have been studied as therapies for prostate cancer based on their purported anti-inflammatory and antioxidant properties and low toxicities. The acai berry is an example of a plant rich in phytochemicals, which may slow the growth of prostate cancer.
This was a phase II, Simon 2-stage clinical trial in patients with biochemically recurrent prostate cancer with a primary endpoint of prostate-specific antigen (PSA) response. Patients were asymptomatic, with a rising PSA of at least 0.2 ng/mL, and were treated with twice daily intake of Acai Juice Product until PSA progression, with a primary endpoint of PSA response.
Twenty-one patients were enrolled in the first stage of the trial. One of those patients had a PSA response within the study time period. The PSA doubling time was lengthened in 71% of patients (95% confidence interval = 48% to 89%) on the trial, and in a small number of responders, this was sustained over an extended time.
This study did not meet its primary endpoint of 50% PSA response. Nevertheless, the overall tolerability and effects on PSA stabilization warrant further exploration in a biochemically recurrent population.
Integrative cancer therapies. 2018 Oct 05 [Epub ahead of print]
Elizabeth R Kessler, Lih-Jen Su, Dexiang Gao, Kathleen C Torkko, Michael Wacker, Mary Anduha, Nicole Chronister, Paul Maroni, E David Crawford, Thomas W Flaig, L Michael Glode, Elaine T Lam
1 University of Colorado, Aurora, CO, USA.