The Xc- transport system which is composed of SLC3A2 and SLC7A11 proteins carries cystine into the cytoplasm where it is reduced to cysteine by thioredoxin reductases including thioredoxin reductase 1 (TXNRD1), thus participating in the synthesis of intracellular GSH, an essential cofactor for GPX4 activity
The TRIUMPH phase 3 programme is recruiting internationally, and UK sites may be involved
Diabetes Metab Syndr Clin Res Rev 11:225230 Gustin JA, Ozes ON, Akca H, Pincheira R, Mayo LD, Li Q, Guzman JR, Korgaonkar CK, Donner DB (2004) Cell type-specific expression of the IkappaB kinases determines the significance of phosphatidylinositol 3-kinase/Akt signaling to NF-kappa B activation
There is no absolute contraindication to using GLP-1 receptor agonists in patients with hypothyroidism, and these medications work through different pathways than thyroid hormone replacement therapy (levothyroxine)
If you want to compare formulas with that broader goal in mind, the Healthy Aging Supplements collection is a useful place to start