Is Polyethylene glycol-modified adenosine deaminase Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use Polyethylene glycol-modified adenosine deaminase? Is Polyethylene glycol-modified adenosine deaminase safe for nursing mother and child? Does Polyethylene glycol-modified adenosine deaminase extracts into breast milk? Does Polyethylene glycol-modified adenosine deaminase has any long term or short term side effects on infants? Can Polyethylene glycol-modified adenosine deaminase influence milk supply or can Polyethylene glycol-modified adenosine deaminase decrease milk supply in lactating mothers?

No information is available on the clinical use of Polyethylene glycol-modified adenosine deaminase during breastfeeding. Because it is a large protein molecule, the amount in milk is likely to be very low and absorption is unlikely because it is probably destroyed in the infant's gastrointestinal tract.