On April 17, 2026 SK Life Science Labs, a subsidiary of SK Biopharmaceuticals Co., Ltd., a global biotech focused on the research, development, and commercialization of treatments for disorders of the central nervous system (CNS) and cancer, reported the presentation of three posters at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2026, taking place April 17–22 in San Diego, California.
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The presentations highlight SK Life Science Labs’ continued progress in advancing targeted protein degradation approaches against key oncology targets, including p300 and PRMT5, with the potential to address unmet needs across multiple cancer types.
"Our latest findings further demonstrate the power of targeted protein degradation to selectively eliminate key cancer vulnerabilities with depth and precision that may not be achievable with traditional inhibition," said Ryan Kruger, Ph.D., Chief Scientific Officer at SK Life Science Labs. "We are particularly encouraged by the breadth of anti-tumor activity and improved safety profiles observed in our p300 and PRMT5 degrader programs, which underscore their potential to deliver meaningful therapeutic advances for patients."
Data to be presented include:
Selective p300 degraders in CBP mutant cancers, demonstrating deep anti-tumor activity with robust tumor regression across multiple preclinical models.
Selective p300 degraders in p300-dependent cancers, showing broad efficacy in prostate cancer and multiple myeloma models, with strong suppression of oncogenic transcriptional programs and improved tolerability versus dual inhibition approaches.
Next-generation PRMT5 activity modulation through rapid, potent, and selective degradation of PRMT5, enabling comprehensive suppression of its catalytic and non-catalytic functions and overcoming limitations associated with first- and second-generation inhibitors.
Poster Presentation Details (All times are PDT):
Session: PO.CH01.01 – Targeted Protein Degradation and Induced Proximity
Abstract 5178 / 28: Discovery and characterization of a selective p300 degrader reveals deep anti-tumor activity in CBP mutant cancers
Lead Author: Harshil D. Dhruv
Date/Time: April 21, 2026, 9:00 AM – 12:00 PM; Section 39
Session: PO.CH01.01 – Targeted Protein Degradation and Induced Proximity
Abstract 5179 / 29: Discovery and characterization of a selective p300 degrader reveals broad anti-tumor activity in p300-dependent cancers
Lead Author: Harshil D. Dhruv
Date/Time: April 21, 2026, 9:00 AM – 12:00 PM; Section 39
Session: PO.ET09.04 – Proximity-Induced Drug Discovery 2
Abstract 5790 / 17: Next-generation PRMT5 activity modulation through directed degradation
Lead Author: Jose C. Clemente
Date/Time: April 21, 2026, 2:00 PM – 5:00 PM; Section 15
For more information about SK Life Science Labs, visit www.sklslabs.com.
Frequently Asked Questions (FAQ)
What is SK Life Science Labs announcing at AACR (Free AACR Whitepaper) 2026?
SK Life Science Labs is presenting three posters showcasing new preclinical data from its targeted protein degradation pipeline, including programs focused on p300 and PRMT5.
What are the key programs being highlighted?
The company is presenting data on selective p300 degraders in both CBP mutant and p300-dependent cancers, as well as PRMT5 degraders designed to achieve deeper and more durable target modulation.
Why is p300 an important target in cancer?
p300 is a transcriptional co-activator involved in regulating gene expression in multiple cancers. Selective degradation of p300 enables precise targeting of tumor-driving pathways, particularly in cancers with CBP mutations or p300 dependency.
What differentiates SK Life Science Labs’ p300 degraders?
The company’s p300 degraders are designed to be highly selective, avoiding degradation of the closely related CBP protein. This selectivity may enable strong anti-tumor activity while reducing hematologic toxicity seen with dual p300/CBP inhibition.
What is the significance of targeting PRMT5 through degradation?
PRMT5 is an epigenetic regulator implicated in multiple cancers. Targeted degradation has the potential to eliminate both catalytic and non-catalytic functions of PRMT5, potentially overcoming limitations of traditional inhibitors and enabling more complete target suppression.
What stage of development are these programs in?
The p300 degrader program is currently progressing through IND-enabling studies and the PRMT5 program data are in support of ongoing research efforts to advance it toward potential clinical development.
What is targeted protein degradation?
Targeted protein degradation is a therapeutic approach that harnesses the body’s natural ubiquitin-proteasome system (UPS) to selectively identify and eliminate disease-causing proteins, including those that have historically been difficult to drug.
Where and when will the data be presented?
All three posters will be presented on April 21, 2026, during AACR (Free AACR Whitepaper) Annual Meeting poster sessions in San Diego, California.
(Press release, SK biopharmaceuticals, APR 17, 2026, View Source [SID1234664480])