Principal Investigator

Parakkal Deepak, M.B.B.S., M.S., FACG
Co-Director of Wash U Inflammatory Bowel Diseases Center
- Phone: 314-747-2066
- Email: deepak.parakkal@nospam.wustl.edu
My clinical expertise is in the diagnosis and management of complex inflammatory bowel diseases with an overarching focus on improving the precision of medical therapy in patients with inflammatory bowel diseases, focusing on the right patient, the right drug and the right dose, to maximize efficacy and limit side-effects.
Current Staff

Don Jones
Senior Clinical Research Coordinator
- Phone: 314-273-1772
- Email: dnjones@nospam.wustl.edu
Don Jones is a Clinical Research Coordinator for the Deepak research lab.

Vicki Martin
Senior Clinical Research Coordinator
- Phone: 314-362-7776
- Email: vickimartin@nospam.wustl.edu
Vicki is a Clinical Research Coordinator in Deepak Lab, working on IBD lated research studies. Vicki worked as a Speech-Language Pathologist prior to becoming a research coordinator. She completed her graduate degree at the University of Tennessee – Knoxville (GO VOLS!). Vicki is an IBD patient herself and collaborating with other patients who have IBD is her favorite aspect of her job.

Lulu Huang
Clinical Research Coordinator
- Phone: 314-273-0301
- Email: luluhuang@nospam.wustl.edu
Lulu Huang is a Clinical Research Coordinator for the Deepak research lab.

Monique Lavalas, MPH, RDN
Clinical Research Coordinator
- Email: lavalas@nospam.wustl.edu
As a Clinical Research Coordinator, Monique lead efforts in patient recruitment and safety for industry-sponsored clinical trials addressing Crohn’s Disease, Ulcerative Colitis, and other Inflammatory Bowel Diseases (IBD). Her role involves fostering collaboration between patients, clinicians, and sponsors to advance innovative solutions for these complex conditions.
With a background in pediatric infectious disease and gastroenterology research, she brings a patient-focused and multidisciplinary perspective to the field. She joined the Deepak lab to expand her expertise in GI research while integrating her knowledge of nutrition science to improve outcomes for IBD patients.

Adari Neha
Clinical Research Coordinator
- Email: adari.n@nospam.wustl.edu
Neha Adari graduated from Washington University in St. Louis in the fall of 2023 where she studied Neuroscience and American Culture Studies. As a Clinical Research Coordinator in the IBD team, she works closely with multidisciplinary teams of researchers, physicians, and healthcare professionals and works to support, facilitate, and coordinate daily clinical activities and plays a role in the conduct of the SPARC, anti-IL23, Prometheus, and Perianal Crohn’s Disease studies. With prior experience in research and patient care, Neha is committed to supporting cutting-edge studies that explore the efficacy of IBD treatments and improving patient outcomes for those living with Crohn’s disease and Ulcerative Colitis. She joined the Deepak lab to deepen her professional knowledge of both the clinical and innovative research aspects in GI while also playing a role in the future of IBD care and uncovering new insights and identifying effective therapies.
Research Fellows

Fnu Jaiprada
Research Fellow
- Phone: 314-362-3940
- Email: rathi@nospam.wustl.edu

Sami Samaan
Research Fellow
- Phone: 314-362-2082
- Email: samis@nospam.wustl.edu
I am a medical graduate from the American University of Beirut (AUB) in Lebanon, currently working at WashU as a research fellow in gastroenterology with a focus on inflammatory bowel disease (IBD). My work is dedicated to advancing the understanding of IBD, with a special focus on perianal disease. I am passionate about bridging clinical practice with innovative research to improve outcomes for patients living with chronic gastrointestinal conditions.
Biostatistician

Tingyi Tan
Biostatistician
- Email: tant@nospam.wustl.edu
I work as a research assistant, and my major role is data analysis and statistical analysis with a focus on IBD. I recently finished my master’s degree in biostatistics am excited with the opportunity to apply my skills in clinical studies that strives for real-world outcomes.