Safety and Efficacy Outcomes Following Previously Administered Short-Term Treatment With SHP607 in Extremely Premature Infants

Inclusion Criteria: * Participants who were randomized into Study SHP607-202 (NCT03253263). Participants who were randomized, but did not complete Study SHP607-202 (NCT03253263) must be at least 12 months CA. * Written informed consents (and assents, if applicable) must be signed and dated by the participant's parent(s)/legally authorized representative(s) prior to any study-related procedures. The informed consent and any assents for underage parents must be approved by the institutional review board (IRB)/independent ethics committee (IEC). Exclusion Criteria: \- Participants are excluded from the study if the participant or participant's parent(s)/legally authorized representative(s) is/are unable to comply with the protocol or is/are unlikely to be available for long-term follow-up as determined by the investigator.