Here is an example of a refiled BLA for SC delivery https://endpts.com/takeda-resubmits-bla-for-subcutaneous-entyvio-formulation-after-2019-rejection/
https://www.takeda.com/newsroom/newsreleases/2023/takeda-announces-fda-acceptance-of-bla-resubmission-for-investigational-subcutaneous-administration-of-entyvio-vedolizumab-for-maintenance-therapy-in-moderately-to-severely-active-ulcerative-colitis