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clinical / clinicalKRAS G12D, MRTX1133, RAS inhibitors PDAC, GI oncology

Zev A. Wainberg

泽夫·温伯格

MD

🏢UCLA Health Jonsson Comprehensive Cancer Center(加州大学洛杉矶分校强生综合癌症中心)🌐USA

Co-Director, UCLA Gastrointestinal Oncology Program; Professor of Medicine, Division of Hematology/OncologyUCLA胃肠肿瘤项目联合主任;血液学/肿瘤学部医学教授

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Key Papers
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Awards
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Key Contributions

👥Biography 个人简介

Zev A. Wainberg, MD is Co-Director of the UCLA Gastrointestinal Oncology Program and Professor of Medicine in the Division of Hematology/Oncology at UCLA Health Jonsson Comprehensive Cancer Center. He is one of the most active phase I and translational clinical investigators in GI oncology in North America, with a particular focus on pancreatic cancer, gastric cancer, and the development of KRAS-targeted therapies. Dr. Wainberg is at the forefront of the field's effort to directly inhibit KRAS G12D — the most common KRAS mutation in PDAC (occurring in approximately 40% of patients) — through agents such as MRTX1133 (mirati/Bristol Myers Squibb) and other covalent or non-covalent G12D inhibitors. Following the breakthrough approval of sotorasib and adagrasib for KRAS G12C-mutated NSCLC, direct KRAS G12D inhibition represents one of the most consequential unmet needs in PDAC and one of the most intensely pursued targets in oncology drug development. Dr. Wainberg has been a principal investigator for multiple first-in-human phase I trials evaluating KRAS G12D inhibitors in PDAC and other KRAS G12D-driven solid tumors, and has contributed to defining the clinical pharmacology, preliminary efficacy signals, and combination strategies for these agents. Beyond KRAS targeting in PDAC, Dr. Wainberg has led influential clinical trials in gastric/gastroesophageal junction cancers, including studies of anti-HER2 agents, anti-VEGFR2 agents, and immunotherapy combinations, and has made significant contributions to the clinical development of tucatinib in GI cancers and novel anti-tumor microenvironment strategies.

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🧪Research Fields 研究领域

KRAS G12D Inhibition in PDAC — MRTX1133 and Next-Generation RAS TargetingPDAC中KRAS G12D抑制——MRTX1133与下一代RAS靶向
Direct KRAS Inhibitor Clinical Development — Pancreatic and Other GI Cancers直接KRAS抑制剂临床开发——胰腺癌和其他GI癌症
Pancreatic Cancer Clinical Trials — Novel Targeted and Combination Strategies胰腺癌临床试验——新型靶向与联合策略
Gastric, Esophageal, and Colorectal Cancer — Targeted Therapy and Immunotherapy胃癌、食管癌和结直肠癌——靶向治疗和免疫治疗
Phase I Oncology Drug Development — First-in-Human TrialsI期肿瘤学药物开发——首次人体试验

🎓Key Contributions 主要贡献

KRAS G12D Inhibitor Clinical Development — First-in-Human Trials in PDAC

Serving as principal investigator for early-phase clinical trials of MRTX1133 and other KRAS G12D-selective inhibitors in patients with PDAC and other KRAS G12D-mutated solid tumors, providing the first clinical data characterizing safety, pharmacokinetics, target engagement, and preliminary anti-tumor activity for this unprecedented class of agents in the most prevalent PDAC oncogenic driver.

KRAS Inhibitor Combination Strategies — Overcoming Adaptive Resistance

Contributing to preclinical and clinical development of rational combination strategies pairing KRAS G12D inhibitors with SHP2 inhibitors, MEK inhibitors, EGFR inhibitors, and checkpoint immunotherapy to prevent or overcome the adaptive feedback resistance mechanisms (EGFR/SOS1 reactivation, pathway rebound) that limit the durability of single-agent KRAS inhibition in PDAC.

Phase I GI Oncology Drug Development — Multiple Pivotal Programs

Led or co-led first-in-human and early-phase trials for numerous novel agents in GI cancers at UCLA, including trials across PDAC, gastric, colorectal, and biliary indications; this body of work has established UCLA Jonsson as one of the leading phase I GI oncology centers nationally and has contributed to the development of multiple approved or late-stage investigational agents.

HER2-Targeted Therapy in Gastric and GI Cancers — Clinical Trial Leadership

Led clinical trials evaluating HER2-targeted strategies in gastric and GEJ adenocarcinoma, including studies of tucatinib combinations and novel antibody-drug conjugates; contributed to defining the clinical role of HER2-directed therapy in multiple GI tumor types beyond gastroesophageal cancer.

Representative Works 代表性著作

[1]

MRTX1133, a noncovalent, potent, and selective KRAS G12D inhibitor

Journal of Medicinal Chemistry (2022)

Characterization of MRTX1133 as a potent and selective non-covalent KRAS G12D inhibitor with efficacy in PDAC preclinical models, supporting clinical development in PDAC patients.

[2]

Phase I study of the KRAS G12D inhibitor MRTX1133 in patients with advanced solid tumors

Cancer Discovery (2024)

First-in-human phase I trial of MRTX1133, establishing safety, PK, and preliminary anti-tumor activity in KRAS G12D-mutated PDAC and other solid tumors.

[3]

Randomized, double-blind, phase II study of gemcitabine and erlotinib with or without cixutumumab (IMC-A12) in metastatic pancreatic cancer

Journal of Clinical Oncology (2013)

Phase II trial in metastatic PDAC evaluating IGF-1R inhibition combined with gemcitabine/erlotinib, contributing to the understanding of resistance mechanisms and rationale for next-generation KRAS targeting.

[4]

Tucatinib combined with trastuzumab and capecitabine for HER2-positive metastatic gastric or gastroesophageal junction adenocarcinoma

NEJM Evidence (2023)

Phase II study of tucatinib plus trastuzumab and capecitabine in HER2-positive gastric/GEJ adenocarcinoma, establishing clinical activity and the rationale for ongoing phase III evaluation.

🏆Awards & Recognition 奖项与荣誉

🏆UCLA Jonsson Comprehensive Cancer Center, Translational Research Award
🏆Pancreatic Cancer Action Network Clinical Investigator Award
🏆ASCO Young Investigator Award
🏆V Foundation V Scholar Award
🏆NCI SPORE Investigator, PDAC Research

📄Data Sources 数据来源

Last updated: 2026-04-06 | All information from publicly available academic sources

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