Thermo Fisher Scientific launches Gibco CHO-K1 Catalog Panel Media and Feed to accelerate biologics development
New cGMP-ready media and feed panel helps developers rapidly identify high-performing combinations, with study results demonstrating up to 73% higher titer versus benchmark catalog media and feeds and up to 202% higher peak viable cell density compared with benchmark products tested
25 Sept 2026
Gibco™ CHO-K1 Catalog Panel Media and Feed
Thermo Fisher Scientific has launched the Gibco™ CHO-K1 Catalog Panel, a cGMP-ready portfolio of basal and feed media designed to support strong cell growth and protein production across CHO-K1 cell lines. Available in liquid and dry powder media (DPM) formats, the panel can offer flexible options for process development, scale-up, and manufacturing.
The panel consists of multiple basal media and feed combinations designed for a broad range of CHO-K1 cell lines, helping development teams rapidly identify medium and feed combinations that support higher performance. The chemically defined (CD), animal origin-free (AOF) formulations are cGMP-ready to support regulatory considerations.
The Gibco CHO-K1 Catalog Panel helps upstream process development teams identify high-performing media and feed combinations. In a 14-day fed-batch study using a CHO-K1 GS cell line, select panel combinations demonstrated:
- Up to 73% higher titer compared with the benchmark catalog media and feeds tested
- Up to 202% higher peak viable cell density compared with the benchmark products tested
- Strong product quality performance across tested conditions
“Biologics developers need flexible solutions that help them move quickly while maintaining confidence in process performance and scalability,” said Alex Cherkassky, vice president and general manager of Thermo Fisher Scientific’s cell culture business.
“With the Gibco CHO-K1 Catalog Panel, teams have access to multiple media and feed options that can help them identify high-performing combinations while supporting productivity, product quality and progression toward scalable manufacturing.”
* For research use only. Not for use in diagnostic procedures.
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What is the Thermo Fisher Scientific Gibco CHO-K1 Catalog Panel?
The Gibco™ CHO-K1 Catalog Panel is a cGMP-ready portfolio of basal and feed media for strong cell growth and protein production across CHO-K1 cell lines. Its chemically defined, animal origin-free formulations are available in liquid and dry powder media formats for process development, scale-up, and manufacturing.
How does the Gibco CHO-K1 Catalog Panel support biologics development?
The panel provides multiple basal media and feed combinations, helping upstream process development teams rapidly identify high-performing options for CHO-K1 cell lines. Ready-to-use catalog availability from Thermo Fisher Scientific supports supply assurance, while cGMP-ready formulations address regulatory considerations and progression toward scalable biologics manufacturing.
What performance did the Gibco CHO-K1 media and feeds demonstrate in testing?
In a 14-day fed-batch study using a CHO-K1 GS cell line, select Gibco CHO-K1 Catalog Panel combinations achieved up to 73% higher titer and up to 202% higher peak viable cell density than the benchmark catalog media and feeds tested. They also demonstrated strong product quality performance across tested conditions.