Interdisciplinary Research on Substance Use

We are accepting Applications for
Fall 2026!

To apply for the JDP in Interdisciplinary Research on Substance Use (IRSU) you must apply to both SDSU and UCSD simultaneously.

You will only be charged an application fee for SDSU.

SDSU UCSD Interdisciplinary Research on Substance User
IRSU Leadership
The interdisciplinary program faculty consists of members from both SDSU and UC San Diego.
PhD students

Our students are the first to enroll in this one-of-a-kind PhD program.  Read about our students.

Stock Photo of School Utensils
Current PhD students will find the handbook, writing resource, travel fund information, and conference calendar here.

The PhD degree in Interdisciplinary Research on Substance Use (IRSU) is awarded jointly by San Diego State University and UC San Diego

This is an addiction research program designed to train researchers using cutting-edge, investigational data analytics and methodologies to reduce the national and global burden of substance use and misuse.