Krystal Biotech, Inc.
The main objective of this prospective, observational, long-term follow-up (LTFU) study is to evaluate the long-term safety profile of the gene therapy products evaluated by Krystal Biotech, Inc. which have a shared backbone of HSV-1, in participants who received at least one dose of investigational product (IP).
Due to the guidelines for gene therapy for vectors which may undergo latency/ reactivation, Krystal Biotech, Inc. has established a Long-Term Follow-up Protocol which will identify and mitigate the long-term risks to the participants receiving their gene therapy products and capture delayed adverse events in participants, annually, for 5-years following the last study visit. Additionally, it will allow the Sponsor to further understand the persistence of the gene therapy products used in their parent treatment protocols.
Inclusion Criteria: * All adult and pediatric participants who received at least one gene therapy treatment in a previous Krystal Biotech, Inc. sponsored study, and have discontinued or completed the parent treatment protocol (which do not have the LTFU embedded into the parent protocol), as applicable. * Consent/Assent must be obtained by the participants (and, parental/legal representative, when applicable) prior to any study-related data being collected. * Participant is willing and able to adhere to the protocol requirements. Exclusion Criteria: * Participants who enroll into a non-Krys…
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