The process has already been used to produce a flu vaccine.
“Pro-lifers should keep their eyes on the Sanofi-Pasteur vaccine program, ....”
Sanofi-Pasteur vaccine (and other ethical vaccines) is mentioned in this letter to the FDA from pro-life groups including the Chairman, USCCB Committee on Pro-Life Activities:
“....Thankfully, other vaccines such as those being developed by Sanofi Pasteur, Inovio, and the John Paul II Medical Research Institute utilize cell lines not connected to unethical procedures and methods. It is critically important that Americans have access to a vaccine that is
produced ethically: no American should be forced to choose between being vaccinated against this potentially deadly
virus and violating his or her conscience. Fortunately, there is no need to use ethically problematic cell lines to
producea COVID vaccine, or any vaccine, as other cell lines or processes that do not involve cells from abortions are available and are regularly being used to produce other vaccines. ....”
excerpt from: http://www.usccb.org/about/pro-life-activities/upload/Letter-to-FDA-urging-ethical-COVID-vaccines.pdf