See the DrugPatentWatch profile for ruxolitinib

After conducting a thorough search, I was unable to find the precise FDA submission date for ruxolitinib by Apotex. However, according to DrugPatentWatch.com, Apotex filed a patent for ruxolitinib (cream) on August 10, 2021 [1]. It's important to note that the FDA submission date may differ from the patent filing date.

For the most accurate and up-to-date information regarding the FDA submission date for ruxolitinib by Apotex, it would be best to directly contact Apotex or the FDA.

Sources:
[1] DrugPatentWatch.com, Apotex Inc., Ruxolitinib Cream, DrugPatentWatch, accessed on February 16, 2023, <https://www.drugpatentwatch.com/drugs/ruxolitinib-cream>.