MOGAT: Open-Label, Phase II, Multi-Centre, Study of Anti-CCR4 Monoclonal Antibody (Mogamulizumab) and Total Skin Electron Beam Therapy (TSEB) in Patients With Stage IB-IIB Cutaneous T-Cell Lymphoma
Cutaneous T-Cell Lymphoma (CTCL) has a chronic, relapsing course with patients undergoing multiple, consecutive therapies. Treatment aims at the clearance of skin disease, minimization of recurrence, prevention of disease progression and preservation of quality of life. The treatment of CTCL is primarily determined by the disease extent. Prolonged complete remissions have been obtained with skin-directed therapies in early stage Mycosis fungoides (MF) (IA-IIA), whereas advanced stages CTCL (IIB-IVB) are often refractory to treatment and, thus, have an unfavorable prognosis. Currently, there is no standard treatment option for CTCL, especially for advanced stages, and the optimal treatment sequence is still debated with a large variability in the therapeutic approach across countries. Patients with advanced-stage disease or refractory cutaneous CTCL should be treated with systemic therapies and, whenever possible, should be offered to participate in clinical trials. Currently, there is a urgent call for new treatments in CTCL with higher response rate and prolonged time to progression; In this study, we propose a very innovative treatment schedule in which mogamulizumab is used before Total Skin Electron Beam therapy (TSEB) for systemic disease control and as a maintenance treatment after skin-directed therapy. We hypothesize that our regimen will show a more manageable toxicity profile than a combination treatment and allow for a long-term mogamulizumab administration.
• Diagnosis of MF stage IB, IIA or IIB at registration, and MF stage should have never met criteria for stage IIIA or higher.
• Subjects who have failed (refractory or relapsed) at least one prior course of systemic therapy.
• All clinically significant toxic effects of prior cancer therapy to grade ≤ 1 according to the National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0 (NCI-CTCAE, v.5.0), excluding the specifications required in the criteria 'Adequate haematological and organ function' below
• Males and female subjects ≥ 18 years
• WHO performance status 0-1
• Adequate haematological and organ function:
• absolute neutrophil count (ANC) ≥ 1.0 × 109/L
• platelets ≥ 75 × 109/L (≥ 75,000/mm3)
• bilirubin ≤ 1.5 × upper limit of normal (ULN) except for subjects with Gilbert's syndrome;
• aspartate transaminase (AST) and alanine transaminase (ALT) ≤ 2.5 × ULN
• serum creatinine ≤ 1.5 × ULN or calculated creatinine clearance \> 50 mL/min using the Cockcroft-Gault formula
• Subjects previously treated with anti-CD4 antibody or alemtuzumab are eligible provided a washout period ≥ 3 months and CD4+ cell counts ≥ 200/mm3
• Clinically normal cardiac function based on 12-lead ECG and above the institutional lower limit of normal for left ventricular ejection fraction assessed either by multi-gated acquisition scan or cardiac ultrasound
• Women of child bearing potential (WOCBP) must have a negative serum pregnancy test within 3 days prior to the first dose of study treatment
• WOCBP must agree to use effective contraception, defined as oral contraceptives, double barrier method (condom plus spermicide or diaphragm plus spermicide) or practice through abstinence from sexual intercourse during the study and for 6 months after the last dose.
• Male subjects and their female partners of child bearing potential must be willing to use an appropriate method of contraception defined as oral contraceptives, double barrier method (condom plus spermicide or diaphragm plus spermicide) or practice through abstinence from sexual intercourse (periodic abstinence, e.g., calendar, ovulation, symptothermal, post-ovulation methods and withdrawal are not acceptable methods of contraception) during the study and for 6 months after the last dose.
• Female subjects who are breast feeding should discontinue nursing prior to the first dose of study treatment and until 6 months after the last study treatment
• Before patient registration, written informed consent must be given according to ICH/GCP, and national/local regulations