Pfizer, BioNTech Start Approval Process For Covid-19 VaccinePfizer, BioNTech Start Approval Process For Covid-19 Vaccine Candidate In Europe...... Pfizer(PFE) andBioNTech(BNTX) announced early Tuesday that they've started a "rolling submission" for the approval of their Covid-19 vaccine candidate with the European Medicines Agency. BNTX stock rose early, but PFE fell after edging higher.....The partners are in Phase 3, or final-phase, testing of their vaccine candidate. Pfizer has said initial Phase 3 clinical trial results could be in by the end of October. In their news release, the two companies said they'll work with the EMA's Committee for Medicinal Products for Human Use, or CHMP, to complete the rolling review process to facilitate the final Marketing Authorization Application.