Thank you for asking Paula. From the consent form:

"If results confirm the continued safety and efficacy of CERE-120 following the conclusion of the trial, another study will be opened to allow subjects who received the sham surgery to receive the study drug CERE-120. Participation will be made available to all subjects deemed suitable for the surgical procedure by the subjects study neurologist and neurosurgeon."

It would be tragic if those that received the sham are not given the option of receiving the real treatment.