Pelacarsen Roll-over Extension Program

Inclusion Criteria: * Participants who have provided informed consent prior to initiation of any study-specific activities/procedures. * Participants who have completed the parent study and received the assigned study treatment at the time of its completion Exclusion Criteria: * Participants who permanently discontinued the study treatment as mandated per protocol or due to adverse events in the parent study * Any medical condition(s) in the investigator's opinion that may put the participant at risk or interfere with the study participation * Participants who are receiving another investigational drug or device before the open-label treatment period * Participants who have a known sensitivity to the study drug and are deemed as unsuited for the study by the investigator Other protocol-defined inclusion/exclusion criteria may apply.