RE:Tesamorelin & treatment of HIV-associated lipodystry patentsWhile Tesamorelin (1st generation of GRF peptide) composition of matter patent is set to expired by 2020, Thera had another 2nd generation GRF peptide called TH1173 which is an improved version of tesamorelin. This patent will cover Tesamorelin 2nd generation well into 2030. So, even by 2020, someone might come up with a generic version of Tesamorelin, that generic version would not be able to compete with TH1173 2nd generation.
https://theratechnologies.s3.amazonaws.com/prod/media/th1173_us_patent_v_6_en.pdf