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David Asher Leiman

Associate Professor of Medicine
Medicine, Gastroenterology

Selected Grants


Gastroenterology Artificial INtelligence System for Detecting Colorectal Polyps (The GAIN Study)

Clinical TrialPrincipal Investigator · Awarded by Verily Life Sciences, LLC · 2022 - 2023

A Novel Radiometry-Guided Ablation Catheter to Reliably Treat Barrett's Disease

ResearchCo Investigator · Awarded by Symple Surgical, Inc. · 2021 - 2023

PREEMPT CRC: PREvention Employing a Multiomics Plasma-based Test for ColoRectal Cancer

ResearchPrincipal Investigator · Awarded by Freenome Holdings, Inc. · 2021 - 2023

Eosinophilic Esophagitis (EoE)

ResearchCo Investigator · Awarded by Takeda Pharmaceutical Company Limited · 2020 - 2022

External Relationships


  • Allakos
  • American Partnership for Eosinophilic Diseases (APFED)
  • AstraZeneca
  • Bristol Myers Squibb
  • Merck
  • Allakos
  • American Partnership for Eosinophilic Diseases (APFED)
  • AstraZeneca
  • Bristol Myers Squibb
  • Merck
  • Novo Nordisk
  • Target RWE, Inc

This faculty member (or a member of their immediate family) has reported outside activities with the companies, institutions, or organizations listed above. This information is available to institutional leadership and, when appropriate, management plans are in place to address potential conflicts of interest.