First Clinical Data Demonstrating Predictive Power of Seminal Oxidation-Reduction Potential (ORP) as a Predictor of Fertilization When Used Prior to IVF
ENGLEWOOD, CO / ACCESSWIRE / June 25, 2019 / Aytu BioScience, Inc. (NASDAQ: AYTU), a specialty pharmaceutical company focused on commercializing novel products that address significant patient needs, announced the presentation of novel clinical data demonstrating the predictive power of the company's MiOXSYS® male infertility diagnostic system in assessing fertilization outcomes following In Vitro Fertilization (IVF).
These clinical studies are the first to demonstrate the predictive power of oxidation-reduction potential (ORP), the diagnostic output of the MiOXSYS System, in determining fertilization outcomes following artificial insemination procedures. When measured in semen samples prior to the introduction of sperm via both IVF and Intracytoplasmic Sperm Injection (ISCI) procedures, both studies reported that oxidation-reduction potential was highly predictive of fertilization.
Two MiOXSYS clinical studies were presented on June 24, 2019 at the 35th Annual Meeting of the European Society of Human Reproduction and Embryology (ESHRE) in Vienna, Austria.
The studies are detailed below.
"Prediction of Successful ICSI Cycles by Oxidation-Reduction Potential (ORP) and Sperm DNA Fragmentation (SDF) Analysis"
Ralf Henkel, PhD, Professor Department of Medical BiosciencesUniversity of Western Cape, Bellville, South Africa
The study utilized 51 ejaculated semen samples and conducted sperm preparation for ICSI and oxidative stress measurement via ORP measurement with the MiOXSYS System. Sperm DNA fragmentation analysis was conducted via TUNEL assay.
- When using an ORP cutoff value of 1.36 mV/106 sperm/mL, the predictive power of ORP for fertilization was 81.3% following ICSI (p=.0002).
- This study demonstrated strong predictive capabilities of ORP (oxidation-reduction potential, as measured by the MiOXSYS System) measurement in the clinical setting.
- ORP is clinically useful in providing the clinician with a valuable diagnostic tool for prediction of fertilization in ICSI cycles.
- When used in conjunction with semen analysis, ORP can be used to predict and improve the likelihood of fertilization outcomes.
Dr. Ralf Henkel, the study's principal investigator and Professor at the University of Western Cape, commented, "Having done functional andrological diagnostics for more than 20 years, I have seen the progress andrological diagnostics have made. Now, for the first time, an easy, standardized and therefore properly quantifiable parameter is available, which correlates very well with semen quality and fertilization after assisted reproductive techniques. This is a major step forward in the right direction."
"Relationship Between Oxidative Stress in Semen and the Fertilizing Capacity of the Sperm - Evidence from the Conventional IVF Model in Couples with Unexplained Infertility"
Hassan Sallam MD, PhD, Professor of Obstetrics and GynecologyHead, Alexandria Fertility and IVF Center University of Alexandria, Alexandria, Egypt
This prospective study was conducted between September 2017 and December 2018, and 25 couples with unexplained infertility were included in the cohort. Couples were treated for one cycle of combined IVF/ICSI if 12 oocytes or more were retrieved. Oxidation-reduction potential (ORP) was determined in native semen samples by measuring ORP using the MiOXSYS System to assess correlation of ORP with fertilization rates.
- Seminal ORP as measured by the MiOXSYS System, using a cutoff value of 1.5692 mV/106 sperm/mL, demonstrated a positive likelihood ratio (+LR) of 80.0% among IVF/ICSI couples who had greater than or equal to 50% fertilization of oocytes.
- The mean ORP in the native semen in couples with =>50% IVF fertilization was 1.02 ± 0.1 mV/106 sperm/mL which is significantly lower than in couples with