vulfase

I’m not finding a widely recognized substance or topic named “vulfase” in major medical or scientific references. Could you clarify what you mean by “vulfase”? For example, is it a real drug or enzyme (perhaps a misspelling or alternate name such as a specific enzyme replacement therapy), a gene, a company product, or a fictional term? If you provide a source or context, I can draft a concise, neutral wiki-style article (under 300 words) accordingly.