dicentra is contract research organization with an industry-leading team of medical and regulatory experts. Backed by over 18 years of experience in safety, quality and compliance in all product categories in the life sciences and food industries, dicentra’s CRO is expertly positioned to help guide you through the process of clinical trial design and trial execution.


Alicja Wojewnik, MSc

President & Chief Executive Officer

Peter Wojewnik, HBSc, MBA

Vice President, Growth, Marketing, & Sales

Dr. Karol Wojewnik, MD

VP Medical Affairs

Dr. Gurinder Rai, MD, CCFP, ABFM, ACSM

Principal Investigator

Dr. Gurinder Rai is our Principal Investigator and experienced physician. Dr. Rai brings sought-after experience in the areas of emergency medicine, family medicine, sports/orthopaedic medicine, pharmaceutical/biopharmaceutical drug development and regulatory interaction. He has extensive clinical research experience, serving as a Principal Investigator for over 400 clinical trials with a wide range of research indications.


Andrew Gregg, BHSc, RHN

Director Clinical Research

Andrew brings clinical research experience in Phase I-IV studies focusing on the investigation of safety and efficacy for nutraceuticals, functional foods, dietary supplements, and medical devices for a wide range of health indications. Andrew joins our team after his extensive work as a research Nutritionist with a special focus on the development of standardized diets for bioavailability and metabolism research.


Charles Galea

Director of Clinical Research Business Development

Charles is our Director of Clinical Research Business Development and leads the relationship, satisfaction, and retention of clients within our Clinical Research team. Charles brings ten years of experience as a sales executive with a strong history of success leading sales growth and market expansion within highly competitive industries.


Monica Banach, MSc. Pharm


Monica’s special focus is on the safety and efficacy of ingredients to aid clients in formulating novel claims based on proprietary evidence. She brings extensively published clinical research experience from the University of Toronto and St. Michael’s Hospital’s Risk Factor Modification Centre where she was a part of a team investigating nutritional interventions in diabetic patients, with an emphasis on reducing cardiovascular disease risk factors.


Dr. Homa Assadi, PhD, MSc, BSc

Clinical Research Scientist and Data Specialist

Dr. Homa Assadi brings leading expertise in clinical research protocol and data analysis plan design to dicentra with a Ph.D. in Biomedical Physics – Diagnostic Imaging from Ryerson University, and an MSc. in Atomic and Molecular Physics from Azad University, Tehran. Dr. Assadi has a post-graduate certificate in Clinical Research Management/ICH-GCP Guidelines and oversees the development of statistical analysis plans for our protocols and overall data management, ensuring the quality and significance of our trial data in accordance with Health Canada & FDA regulations, and ICH-GCP guidelines. She has extensive experience in biomedical research, medical writing, grant proposal development, and healthcare innovation.


Justina Mankaruos, MPharm

Clinical Research Recruitment Specialist

Justina is dicentra’s Clinical Research Recruitment Specialist and provides us with unique expertise in participant education and liaison to assess their potential eligibility for our research trials. She is responsible for all strategic recruitment initiatives, including reaching out to participants by phone, email, community-level recruitment initiatives, local recruitment initiatives, and social media platforms. Justina holds a Masters Degree in Pharmacy from the University of Sunderland.