About

OUR HISTORYSpectrum Research Institute is the clinical research wing of Southeast Valley Gastroenterology Consultants (SEVG).

Spectrum focuses on clinical trials related to liver and digestive diseases including Fatty Liver Disease (MASLD/MASH), Inflammatory Bowel Disease, and cancer Biomarkers.

SEVG is a large single specialty Gastroenterology and Hepatology practice serving metropolitan Phoenix since 1993. Since 2019, SEVG has been conducting clinical research trials. To facilitate a more substantial presence in the clinical research space, we opened Spectrum Research Institute in a state-of-the-art 6500 square foot facility that is equipped with advanced diagnostic and therapeutic tools tailored to gastroenterology and hepatology research. Our principal investigators have more than 20 years of combined clinical trials experience.

Melissa Williamson, PhD
LEAD PRINCIPAL INVESTIGATORDonna Desantis, MD
Linda Hoffman, PhD
LEAD CLINICAL RESEARCH COORDINATORBrizelle Aguilar
Manish G Amin, MD
MANAGING DIRECTORManish Amin, MD