This is a non-interventional, retrospective study of participants from France, Germany, Spain and Italy with CTCL who were retreated with brentuximab vedotin (BV) after a relapse in at least two different lines of therapy. The participants will be identified from their medical charts and those who meet the eligibility criteria will be included.
The study will enroll approximately 50 participants.
This multi-center trial will be conducted in Europe. The participants are assessed after the last dose of BV for approximately 4 months and followed up for at least 12 months after the re-treatment.