Pediatric Safety Follow-up Study of Prior Treatment With Romosozumab for Osteogenesis Imperfecta

Inclusion Criteria:

\- Participant has provided informed consent/assent prior to initiation of any trial specific activities/procedures.

OR Participant's legally authorized representative has provided informed consent when the participant is legally too young to provide informed consent, and the participant has provided written assent based on local regulations and/or guidelines prior to any trial-specific activities/procedures being initiated.

\- Participant was randomized to the romosozumab arm and completed Trial 20200105 through the Month 15 Visit, regardless of whether they received investigational product (romosozumab) until the last protocol-specified dose or ended investigational product early.

Exclusion Criteria:

* Currently receiving treatment in another investigational device or drug trial, or less than 2 years since ending treatment on another investigational device or drug trial(ies) with the exception of trial 20200105. Other investigational procedures while participating in this trial are excluded.
* Participant likely to not be available to complete all protocol-required trial visits or procedures, and/or to comply with all required trial procedures to the best of the participant and investigator's knowledge.