Long-term Follow-up Study to Evaluate Safety and Efficacy of FBX-101 in Krabbe Patients

This is an observational study that will enroll any patients with Krabbe disease that have participated in prior interventional clinical trials involving the administration of FBX-101.

Inclusion Criteria: * Participants that have completed a prior clinical trial involving the administration of FBX-101. * Parent(s)/legal guardian(s) of participant willing and able to complete the informed consent process and comply with study procedures and visit schedule. Exclusion Criteria: •Planned or current participation in any other interventional clinical study that may confound the safety or efficacy evaluation of FBX-101 during this study.