Studie zur Untersuchung von Atezolizumab (anti-PD-L1) in der Behandlung von Patienten mit Mycosis fungoides/Sezary Syndrom, deren Zustand sich während oder nach einer vorherigen Behandlung verschlechtert hat.

Drug: Atezolizumab

Gender: All
Maximum age: N/A
Minimum age: 18 Years

Inclusion criteria

- Male or female patients with diagnosis of CTCL (mycosis fungoides or S?zary-Syndrome)
tumor stage IIB to IVB

- Mandatory to ship tumor sample for evaluation of PD-L1 expression. A 4 mm
formalin-fixed punch biopsy is recommended.

- Inadequate response or secondary treatment failure to at least 1 prior systemic
therapy for CTCL according to treatment guidelines (e.g. INF-2a or bexarotene).

- Age = 18 years old

- WHO performance status 0-1

- Adequate bone marrow and organ function prior to receiving the first dose of study
treatment:

- Hemoglobin >10.0 g/dL (>100 g/L) or hematocrit >30% (>0.30 v/v);

- White blood cell count >3.0 x 109/L (>3000/mm3);

- Absolute neutrophil count of >1.5 x 109/L (>1500/mm3);

- Platelet count >100 x 109/L (>100,000/mm3);

- Estimated creatinine clearance >40 mL/min based on the Cockcroft Gault calculation or
serum creatinine less than 1.5 times the upper limit of normal (ULN)

- Aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) values less
than 2 times the upper limit of normal (ULN)

- Serum total bilirubin 1.5 ULN

- Patients with suspicion of Gilbert disease who have serum bilirubin level 3 x ULN may
be enrolled.

- Clinically normal cardiac function based on 12 lead ECG without clinically relevant
abnormalities and the institutional lower limit of normal for left ventricular
ejection fraction as assessed either by multi-gated acquisition scan or cardiac
ultrasound.

- Women of child bearing potential (WOCBP) must have a negative serum pregnancy test
within 72 hours prior to the first dose of study treatment.

Note: women of childbearing potential are defined as premenopausal females capable of
becoming pregnant (i.e. females who have had any evidence of menses in the past 12 months,
with the exception of those who had prior hysterectomy). However, women who have been
amenorrheic for 12 or more months are still considered to be of childbearing potential if
the amenorrhea is possibly due to prior chemotherapy, antiestrogens, low body weight,
ovarian suppression or other reasons.

- Patients of childbearing / reproductive potential should use adequate birth control
measures, as defined by the investigator, during the study treatment period and for at
least 5 months after the last dose of treatment. A highly effective method of birth
control is defined as a method which results in a low failure rate (i.e. less than 1%
per year) when used consistently and correctly. Such methods include:

- Combined (estrogen and progestogen containing) hormonal contraception associated with
inhibition of ovulation (oral, intravaginal, transdermal)

- Progestogen-only hormonal contraception associated with inhibition of ovulation (oral,
injectable, implantable)

- Intrauterine device (IUD)

- Intrauterine hormone-releasing system (IUS)

- Bilateral tubal occlusion

- Vasectomized partner

- Sexual abstinence (the reliability of sexual abstinence needs to be evaluated in
relation to the duration of the clinical trial and the preferred and usual lifestyle
of the patient)

- 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.

Exclusion criteria

- Patients for whom only local therapy is indicated.

- Received chemotherapy or targeted small molecule therapy within 4 weeks prior to
registration.

- Persistence of clinically relevant therapy-related toxicity from previous systemic
treatment. Grade 1 or 2 adverse events (AEs) are acceptable.

- Received a T cell depleting antibody (e.g. Campath) within 3 months prior to the first
dose of atezolizumab.

- Prior therapy with anti-PD1, anti-PD-L1, anti-PD-L2.

- History of other malignancy in the past 5 years with the exception of treated
carcinoma in situ of the cervix and non-metastatic, non-melanoma skin cancer.

- Patients with known central nervous system (CNS) involvement with lymphoma.

- History of severe allergic anaphylactic reactions to chimeric, human or humanized
antibodies, or fusion proteins.

- Known hypersensitivity to CHO cell products or any component of the atezolizumab
formulation.

- History of any of the following cardiovascular conditions within 6 months prior to the
first dose of study treatment:

- Unstable angina.

- Clinically significant cardiac arrhythmias.

- Myocardial infarction.

- Have current or recent (past 6 months) history of severe, progressive, or uncontrolled
renal, hepatic, gastrointestinal, metabolic, endocrine, pulmonary, cardiovascular, or
neurological disease.

- Severe infection within 4 weeks prior to registration, including, but not limited to,
hospitalization for complications of infection, bacteremia, or severe pneumonia

- Have active signs of disseminated herpes zoster or disseminated herpes simplex, or a
recurrent (more than one episode of) localized, dermatomal herpes zoster.

- Administration of a live, attenuated vaccine within 4 weeks prior to Cycle 1, Day 1 or
anticipation that such a live attenuated vaccine will be required during the study.
Any live, attenuated vaccine (e.g. FluMist?) is prohibited while the patient is
receiving atezolizumab and for a period of 5 months after discontinuation of
atezolizumab. Inactivated influenza vaccines are allowed only during flu season.

- Active or history of autoimmune disease or immune deficiency, including, but not
limited to, myasthenia gravis, myositis, autoimmune hepatitis, systemic lupus
erythematosus, rheumatoid arthritis, inflammatory bowel disease, antiphospholipid
antibody syndrome, Wegener granulomatosis, Sj?gren syndrome, Guillain-Barr? syndrome,
or multiple sclerosis, with the following exceptions:

- Patients with a history of autoimmune-related hypothyroidism who are on thyroid
replacement hormone are eligible for the study.

- Patients with controlled Type 1 diabetes mellitus who are on an insulin regimen are
eligible for the study.

- Patients with eczema, psoriasis, lichen simplex chronicus, or vitiligo with
dermatologic manifestations only (e.g., patients with psoriatic arthritis are
excl