A Study of SGN-35 (Brentuximab Vedotin) of Patients With Relapsed or Refractory PMLBCL

Inclusion Criteria

Patients must meet all of the following inclusion criteria to be eligible for this study:

• Patients with relapsed or refractory PMLBCL who have previously received at least 1 line of treatment. Patients must have completed any prior treatment with radiation, chemotherapy, biologics, immunotherapy and/or other investigational agents at least 4 weeks prior to the first dose of Brentuximab vedotin.
• Histologically-confirmed CD30-positive disease.
• Age greater than or equal to 18 years.
• Fluorodeoxyglucose (FDG)-avid and measurable disease of at least 1.5 cm as documented by both PET and spiral CT.
• An Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
• The following required baseline laboratory data: absolute neutrophil count (ANC) ≥1500/μL, unless known marrow involvement due to disease, platelets ≥75,000/μL, unless known marrow involvement due to disease, bilirubin ≤1.5X upper limit of normal (ULN) or ≤3X ULN for patients with Gilbert's disease, serum creatinine ≤1.5X ULN, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤2.5X ULN.
• Serum Albumin ≥3 gr/dL;
• Females of childbearing potential must have a negative serum or urine β-hCG pregnancy test result within 7 days prior to the first dose of Brentuximab vedotin. Females of non-childbearing potential are those who are postmenopausal greater than 1 year or who have had a bilateral tubal ligation or hysterectomy.
• Both females of childbearing potential and males who have partners of childbearing potential must agree to use two effective contraceptive methods during the study and for 30 days following the last dose of study drug.
• Male patients, even if surgically sterilized (i.e., post vasectomy), who:
• Agree to practice effective barrier contraception during the entire study treatment period and through 6 months after the last dose of the study drug, or
• Agree to completely abstain from heterosexual intercourse
• Patients or their legally authorized representative must provide written informed consent.

Exclusion Criteria

• Previous treatment with Brentuximab vedotin.
• Previously received an allogeneic transplant.
• Congestive heart failure, Class III or IV, by the NYHA criteria.
• History of another primary malignancy for at least 3 years. (The following are exempt from the 3-year limit: nonmelanoma skin cancer, curatively treated localized prostate cancer, and cervical carcinoma in situ on biopsy or a squamous intraepithelial lesion on PAP smear.)
• Known cerebral/meningeal disease.
• Signs or symptoms of progressive multifocal leukoencephalopathy (PML).
• Pre-existing Peripheral Neuropathy ≥ 2;
• Any active systemic viral, bacterial, or fungal infection requiring treatment with antimicrobial therapy within 2 weeks prior to the first dose of Brentuximab vedotin.
• Current therapy with other systemic anti-neoplastic or investigational agents.
• Therapy with corticosteroids at greater than or equal to 20 mg/day prednisone equivalent within 1 week prior to the first dose of Brentuximab vedotin.
• Women who are pregnant or lactating and breastfeeding.
• Patients with a known hypersensitivity to recombinant proteins, murine proteins, or any excipient contained in the drug formulation.
• Known human immunodeficiency virus (HIV) positive.
• Known hepatitis B surface antigen-positive, or known or suspected active hepatitis C infection.
• Patients with dementia or an altered mental state that would preclude the understanding and rendering of informed consent.