The goal of this observational study is to evaluate how well brentuximab vedotin plus cyclophosphamide, doxorubicin, and prednisone (CHP) works and how safe it is when used as first-line treatment in adults with CD30-positive peripheral T-cell lymphoma in Spain during routine clinical care.
The main questions this study aims to answer are:
* How long do participants live without their lymphoma getting worse after starting treatment?
* How well does this treatment reduce or eliminate the lymphoma?
* How long do participants live after receiving this treatment?
* What side effects do participants experience, including nerve problems and low white blood cell counts?
Participants have already received brentuximab vedotin plus CHP as part of their usual medical care. Researchers will collect information from existing medical records to better understand treatment outcomes and safety in real-world clinical practice across multiple centers in Spain.