When did dupixent come out?

When was Dupixent first approved or launched?

Dupixent (dupilumab) was first approved in the United States on March 20, 2017. [1]

When did patients first start getting access in the US?

Because the FDA approval date was March 20, 2017, commercial availability for US patients began soon after that approval (through prescriptions under the approved indication(s)). [1]

Was it approved outside the US at the same time?

No. Dupixent’s approval dates varied by country and regulatory agency, depending on when each jurisdiction reviewed and authorized the medicine. [1]

Source

[1] https://www.drugpatentwatch.com/p/duplexent-dupilumab/dupixent-launch-date-approval-date/