Oncoxin-Viusid® may improve quality of life and survival in patients with hormone-refractory prostate cancer undergoing onco-specific treatments

Mercedes Iveet Fundora Ramos, Lourdes Boulet Maden, Fernando Oriol Casanova, Frank Hernández Cruz, Carina Salgado Reyes, Adalberto Hernandez Gato, Israel Benítez Lyncon, Etna Vega González, Katia Palau Morales, Juan J Lence, Eduardo Sanz, Mercedes Iveet Fundora Ramos, Lourdes Boulet Maden, Fernando Oriol Casanova, Frank Hernández Cruz, Carina Salgado Reyes, Adalberto Hernandez Gato, Israel Benítez Lyncon, Etna Vega González, Katia Palau Morales, Juan J Lence, Eduardo Sanz

Abstract

The aim of the present study was to identify the efficacy and safety of Oncoxin-Viusid (OV) as a supportive treatment for patients with prostate cancer (PCA). A prospective, non-randomised, open-label phase II clinical trial, including 25 patients with hormone-refractory PCA (HRPC) was conducted at the Hospital Universitario General Calixto García (Havana, Cuba) between June 2017 and March 2018. Each of the patients received chemotherapy (CTX) and/or radiotherapy (RT) and OV treatment. Patients had a mean age of 73 years, clinical stage IV cancer and a high risk of relapse. Six cycles of CTX were completed by 80% of the patients, adverse reactions decreased and no weight loss was observed. Among the 25 patients, 5 were lost to follow-up and 4 died of disease progression. A total of 16 of these patients survived, of which 15 had an improved quality of life and 10 responded to treatment, with a significant reduction in pain and prostate symptoms and ≥50% reduction in baseline PSA. The progression-free survival (PFS) rate was 59% and the overall survival (OS) rate 64% at 1 year after treatment began. The OV nutritional supplement was effective, leading to a significant improvement in the patients' quality of life, good nutritional status and greater treatment tolerance. A clinical and humoral response was observed, with high survival rates and a delayed appearance of signs of disease progression. The present study was registered in ClinicalTrials.gov PRS with ID #NCT03543670.

Keywords: Oncoxin-Viusid; hormone refractory; nutritional supplement; prostate cancer; treatment.

Copyright: © Fundora Ramos et al.

Figures

Figure 1
Figure 1
Adverse events. The RV between cycle 1 and the final cycle appears in parentheses. RV=V1-V2/V1 x100, with V1 being the initial value and V2 the end value. Blue corresponds to the first, orange to the sixth and gray to the final cycle. RV, relative variation.
Figure 2
Figure 2
Progression-free and overall survival rates using Kaplan-Meier analysis.

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