Related Experiment Video
Updated: May 15, 2025

Testing Targeted Therapies in Cancer using Structural DNA Alteration Analysis and Patient-Derived Xenografts
Published on: July 25, 2020
B7 Homolog 4 (B7-H4)-Directed Agents in Oncology Clinical Trials: A Review
Meave Phipps1, Gerald S Falchook1
1Sarah Cannon Research Institute at HealthONE, Denver, CO, USA.
Abstract:
B7 homolog 4 (B7-H4) is a transmembrane protein found on immune cells and is frequently overexpressed in various solid tumors, making it a promising target for cancer therapy. B7-H4-directed agents, particularly antibody-drug conjugates (ADCs) like puxitatug samrotecan (AZD8205), felmetatug vedotin (SGN-B7H4V), and GSK5733584, have demonstrated early clinical activity with promising response rates in triple-negative breast cancer (TNBC). Combination strategies, such as ADCs with anti-PD-1 or PARP inhibitor therapies, have also shown enhanced tumor regression in preclinical models and are the subject of several ongoing clinical trials. This review highlights the current landscape of B7-H4-targeted agents, their progress in clinical trials, and the potential for combination approaches to improve outcomes in B7-H4-expressing cancers.
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against...
Cancer Therapies
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
Inhibition of Cdk Activity
Treatment Resistant Cancers

