| Inclusion Criteria: | 1) Patients with no curative treatment options available for their histologically and/or cytologically confirmed relapsed or refractory CTCL of the following subtypes:(a). Mycosis fungoides Stage IB or higher, (b). Sézary syndrome, (c). Primary cutaneous anaplastic large cell.
2) Documented progression or relapse of disease after at least 1 previous systemic therapy, defined as chemotherapy, oral bexarotene, vorinostat, interferon-a, denileukin diftitox, ECP, and anti-CD52 antibody (alemtuzumab). The patient should have clearly progressed after their last prior treatment regimen. The patient has recovered from the toxic effects of prior therapy.
3) Eastern Cooperative Oncology Group (ECOG) Performance Status </= 2
4) Life expectancy >/= 3 months.
5) >/= 18 years of age.
6) Adequate hematological, hepatic, and renal function as defined by: absolute neutrophil count (ANC) >/= 1,500/micro/L, platelet count >/= 100,000/micro/L, (at both screening and within 3 days prior to planned dosing on cycle 1, dose 1) total bilirubin </= 1.5 mg/dL, aspartate aminotransferase (AST) and ALT </= 2.5 x ULN, creatinine </= 1.5 mg/dL or if serum creatinine is elevated then patient has a calculated creatinine clearance >/= 50 mL/min.
7) MMA serum concentration < 200 nmol/L and Hcy concentration < 10 micromol/L at screening or the patient has been on a regimen of 1 mg PO QD of folic acid for at least 10 days prior to planned start of pralatrexate and has received 1 mg IM of vitamin B12 within 10 weeks of the planned start of pralatrexate. These values may be rechecked at baseline (prior to initiation of treatment) at the investigator's discretion.
8) Women of childbearing potential must agree to practice a medically acceptable contraceptive regimen from study treatment initiation until at least 30 days after the last administration of pralatrexate and must have a negative serum pregnancy test within 14 days prior to the first day of study treatment. This test is not required for patients who are postmenopausal for at least 1 year (> 12 months since last menses) or are surgically sterilized. Pralatrexate should not be administered to women who are breastfeeding.
9) Men who are not surgically sterile must agree to practice a medically acceptable contraceptive regimen from study treatment initiation until at least 90 days after the last administration of pralatrexate.
10) Patient has given written informed consent (IC) and privacy authorization (PA). |