This study is looking at ways to improve survival for people with a type of blood cancer called Peripheral T-cell Lymphoma (PTCL). The study compares two groups: one group will just be watched carefully, while the other group will get high dose chemotherapy followed by an autologous stem cell transplant (ASCT), which means using their own stem cells to help recover from the strong chemotherapy. In this process, stem cells are collected from the patient before chemotherapy and then put back into their body after the chemotherapy is done. This helps the bone marrow, where blood cells are made, to recover.
- Participants will be followed for a total of 12 years, with frequent check-ups in the first few years.
- Eligibility includes being 18-75 years old and having specific health criteria met.
- This study may involve risks associated with high dose chemotherapy and stem cell transplant.