Alternative BLE module 150-RN4871-V/RM140-ND

Urgent request 4/8/2021
Dear colleagues, we are developing a medical device for COVID-19 linked to a mobile phone using 150-RN4871-V/RM140-ND. We have got excellent results. Need to develop the product further however, due to global shortage 150-RN4871-V/RM140-ND module is not available. Could someone recommend alternatives that are available?
Thanks for your support