Dr. Susan Weiss, Cannabis Research and Policy: State of the Science

October 2021

Dr. Susan Weiss is the Director, Division of Extramural Research at the National Institute on Drug Abuse (NIDA), which oversees NIDA’s extramural programs, operations planning, and trans-NIH initiatives, such as the Adolescent Brain Cognitive Development (ABCD®) and HEALthy Brain Child Development (HBCD) studies, and the Brain Research through Advancing Innovative Neurotechnologies® (BRAIN) Initiative. Dr. Weiss also serves as a senior science advisor to the NIDA Director and scientific liaison to the NIH, HHS, and other Federal Agencies. Previously, she served as the Chief of the Science Policy Branch and Acting Director of NIDA’s Office of Science Policy and Communications.

Before coming to NIDA, Dr. Weiss was the Senior Director of Research at the National Mental Health Association (now Mental Health America), and previously she directed a translational research program in the Biological Psychiatry Branch of the National Institute of Mental Health.

Dr. Weiss received multiple awards, including NIH Plain Language Awards, NIH and NIDA Director’s Awards, and an Emmy for her contributions to the HBO Addiction Project. She has published more than 150 scientific articles and chapters, graduated from the State University of New York at Stony Brook, and received her Ph.D. in Psychology from the University of Maryland.

Previous Webinars

Igor Grant, M.D. and Thomas Marcotte, Ph.D.

Thursday, February 12th at 1:00 PM MST

The UC San Diego Center for Medicinal Cannabis Research: Some Findings

Igor Grant, MD is Distinguished Professor, and Director of the Center for Medicinal Cannabis Research (CMCR) at the University of California San Diego (UCSD). Established in 2000, the CMCR has been at the forefront of advancing science and policy […]

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Almut Winterstein, PhD.

Jan 8, 2026 01:00 PM Mountain Time

Clinical research priorities gleaned real-world use patterns: the MEdical Marijuana Outcomes Research repositorY (MEMORY)

Almut Winterstein is Distinguished Professor and the Dr. Robert and Barbara Crisafi Chair for Medication Safety in the Department of Pharmaceutical Outcomes and Policy and in the Department of Epidemiology, and the founding Director of the […]

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Carolyn Baglole, PhD,

December, 11, 2025 1:00 PM MST

Multi-omics dissection of the molecular and pharmacological effects of inhaled cannabis

Professor Carolyn Baglole earned her Bachelor of Science and Master of Science degrees from the University of Prince Edward Island, followed by a PhD in Physiology and Pharmacology from the University of Calgary. Dr. Baglole then completed postdoctoral training at […]

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Margaret Haney, PhD

Nov 13, 2025 01:00 PM MST

Cannabis Misuse and Therapeutic Potential: Placebo-controlled Laboratory Studies

Dr. Margaret (Meg) Haney is a Professor of Neurobiology (in Psychiatry) at the Columbia University Irving Medical Center. As the Director of the Cannabis Research Laboratory and of the Substance Use Research Center in the Division of Substance Use Disorders, Dr. Haney is […]

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Inga Zasada, Ph.D.

Wednesday, February 18 at 11:00 AM MST

Dr. Inga Zasada brings over 25 years of expertise in nematology, specializing in the biology and management of plant-parasitic nematodes affecting high-value crops such as hemp. With deep knowledge spanning both chemical and nonchemical control strategies, she provides comprehensive solutions for complex nematode challenges. As owner of NemaSolutions LLC, […]

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Dan Ovadya, CEO

New Methods for Induction of Male Flowers and Scalable Feminized Seed Production in Cannabis Sativa

Dan Ovadya is the Co-founder and CEO of FloraGen LLC, an AgTech company based in Davis, California. Dan has
over 30 years of experience in crop optimization, precision horticulture and seed production systems in controlled
environments. His career in Ag-Biotech centered on developing […]

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