Teddi Mellencamp taking a break from immunotherapy Teddi Mellencamp is taking a "break from immunotherapy" due to side effects and in order to get her "body back feeling stronger". 24 July 2025 Teddi Mellencamp is taking a "break from immunotherapy". Teddi Mellencamp taking a break from immunotherapy The 44-year-old reality TV star - who is battling stage four cancer - revealed she is pausing her treatment due to side effects and in order to get her "body back feeling stronger".