Using the SNAP-tag system, in which the GLP-1R N-terminus contains a small genetically encoded tag to allow specific labeling of surface receptors, we measured the dose responses for the agonist-induced cell surface loss of human GLP-1R in CHO-K1 cells, identifying the analogs with different net internalization efficacy than the reference compound exendin-4 (Supplementary Fig
May cause injection site reactions Some patients may experience mild reactions such as redness, swelling, itching, etc
Compounded versions haven't been tested in those trials, haven't demonstrated comparable safety profiles across different patient groups, and lack proven batch-to-batch consistency, making them unreliable for reproducible results
The MHRA and EMA product information for GLP-1 receptor agonists list gastrointestinal disorders as very common adverse reactions
Injectable formulations offer more flexibility in this regard