Overview
- On a Jan. 14 appearance on The Joe Rogan Experience, Mellencamp said his 44-year-old daughter has cancer in the brain and is "suffering right now."
- Speaking on the Today show Jan. 16, he said he wants her to relocate to Indiana with her children during treatment, but she has declined.
- He described a cycle in which she feels well, undergoes immunotherapy, then feels ill for about four days before returning to baseline.
- Teddi said in October 2025 that scans showed no detectable cancer, noting she was not in remission and would stay on immunotherapy for at least a year.
- Her melanoma, first diagnosed in 2022, advanced in 2025 to stage 4 with spread to her lungs and brain, prompting surgeries, radiation and continued care that her father has supported with daily check-ins and help arranging a nurse.