Anyone on SAPHNELO or Anifrolumab for LUPUS?

Saphnelo or Anifrolumab weekly pen injection is now in Phase III clinical trial for Systemic Sclerosis. The drug originally has been approved for Lupus, either as once monthly infusion or as weekly pen self-injection. I am considering it for SSC, but I will have to pay out-of pocket as it is not approved yet in this indication.

If you were treated with Saphnelo for any indication, please share your experience with regard to how effective it was, how long did it take to make it work, and major toxicities that you have experienced.