Forigerimod TFA (IPP-201101 TFA) is a CD4 T-cell modulator. Forigerimod TFA is a 21-amino-acid fragment of U1 small nuclear ribonucleoprotein 70 kDa that is phosphorylated at Ser140. Forigerimod TFA can potently inhibit autophagy. Forigerimod can be used for the research of autoimmune disorders, such as systemic lupus erythematosus (SLE) .