The effects of aging pose an additional challenge for people with HIV due to the neurological and psychological consequences that persist despite antiretroviral therapy. At the Conference on Retroviruses and Opportunistic Infections (CROI) held Feb. 22-25, 2026, in Denver, the scientific community examined how the virus affects the brain, how the reservoir is established in the CNS, and which genetic, immunological or treatment-related factors influence cognitive health.

GSK plc will pay Frontier Biotechnologies Inc. $40 million up front and up to $963 million in milestone payments to license two of Frontier’s small interfering RNA-based assets in the field of immunology.

Harbour Biomed is spinning out newco Solstice Oncology and is outlicensing its CTLA-4 antibody, porustobart (HBM-4003), to the newco in a cash and equity deal worth more than $1.2 billion.

CSL Ltd. is out-licensing its interleukin-6 (IL-6) monoclonal antibody, clazakizumab, to Eli Lilly and Co. in a deal that brings CSL $100 million in up-front fees. A CSL spokesperson told BioWorld the deal includes undisclosed milestone payments and sales-based royalties. CSL will retain rights to develop and commercialize clazakizumab for prevention of cardiovascular events in patients with end-stage kidney disease, while Lilly will explore the MAb in all other indications.

SLAMF6 is an immune cell receptor whose function was not clear. Does it activate or inhibit cells? The results so far have been contradictory. Now, scientists at the Institut de Recherches Cliniques de Montréal have unveiled evidence that SLAMF6, a protein of the SLAM family that binds to copies of itself, is regulated by interactions between molecules of the same receptor within the same cell.

A circuit formed by tumor, immune and nervous systems triggers cancer cachexia and anorexia, the excessive loss of weight, muscle and fat experienced in some cancer types. A new study is the first showing these three actors of a triangle interaction that initiates and feeds the process.

After closing an oversubscribed $85 million series B round, Quantx Biosciences Inc. is gearing up to begin clinical trials of its two lead immunology compounds, a STAT6 oral small-molecule inhibitor and an IL-17 oral small-molecule inhibitor.

Galux closed a ₩42 billion (US$29 million) series B round Feb. 10, led by Yuanta Investment to bring AI-driven “rational design” to the protein drug development process, already heavily influenced by human engineering. 

As its GLP-1 rival goes after compounders, Eli Lilly and Co. started the week with news beyond its diabetes and obesity franchise. The company, which disclosed a new agreement with Innovent Biologics Ltd., followed up a short time later with plans to acquire Orna Therapeutics Inc., marking its latest foray in the in vivo therapy space.