Please select the eligibility criteria that correspond to the clinical trial below.
Title: CLLM1-Protocol of the German CLL-Study Group (GCLLSG) A Phase 3, Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group Study of the Efficacy and Safety of Lenalidomide (Revlimid®) as Maintenance Therapy for High-risk Patients With Chronic Lymphocytic Leukemia Following First-line Therapy
Brief Summary: CLLM1 is a phase 3, multicenter, randomized, double-blind, placebo-controlled, parallel-group study that compares the efficacy and safety of oral lenalidomide maintenance therapy to that of placebo maintenance therapy in high-risk subjects with Chronic Lymphocytic Leukemia (CLL) who have achieved at least a partial response (PR) and either:

* MRD levels of ≥ 10-2 or
* MRD levels of ≥ 10-4 - \< 10-2 combined with at least one of the following factors:

  * an unmutated IGHV-status
  * 17p-deletion or
  * TP53 mutation after first line therapy with FCR, FR, BR or FC (in case of of contraindications to receive Rituximab).


Options:
A: Inclusion Criteria:

* Diagnosis of CLL according to the National Cancer Institute (NCI)/Internal Workshop on Chronic Lymphocytic Leukemia (IWCLL) criteria or small lymphocytic lymphoma (SLL) according to the World Health Organization (WHO) criteria; this includes previous documentation of:

  * Biopsy-proven small lymphocytic lymphoma or
  * Diagnosis of CLL according to the NCI/IWCLL criteria as evidenced by all of the following:

    * Peripheral blood lymphocyte count of greater than 5 x 10\^9/L
    * Immunophenotype consistent with CLL defined as:

      * The predominant population of lymphocytes share both B-cell antigens (cluster of differentiation \[CD\]19, CD20 \[typically dim expression\], or CD23) as well as CD5 in the absence of other pan-T-cell markers (CD3, CD2, etc)
      * Clonality as evidenced by kappa or lambda light chain restriction (typically dim immunoglobulin expression)
  * Negative FISH analysis for t(11;14)(immunoglobulin heavy locus \[IgH\]/cyclin D1 \[CCND1\]) on peripheral blood or tissue biopsy (e.g. marrow aspirate) or negative immunohistochemical stains for cyclin D1 staining on involved tissue biopsy (e.g. marrow aspirate or lymph node biopsy)
* No prior chemotherapy, Bruton's tyrosine kinase (BTK) inhibitor therapy, or monoclonal anti-body therapy for treatment of CLL or SLL
* Has met at least one of the following indications for treatment:

  * Evidence of progressive marrow failure as manifested by the development of worsening anemia (hemoglobin \[Hg\] \< 11 g/dl) and/or thrombocytopenia (platelets \< 100 x 10\^9/L)
  * Symptomatic or progressive lymphadenopathy, splenomegaly, or hepatomegaly
  * One or more of the following disease-related symptoms:

    * Weight loss \>= 10% within the previous 6 months
    * Grade 2 or 3 fatigue attributed to CLL
    * Fevers \> 100.5 Fahrenheit (F) for 2 weeks without evidence of infection
    * Clinically significant night sweats without evidence of infection
  * Progressive lymphocytosis (not due to the effects of corticosteroids) with an increase of \> 50% over a two-month period or an anticipated doubling time of less than six months
* ECOG performance status between 0-2
* Life expectancy of \>= 12 months
* Ability to tolerate FCR based therapy
* No deletion of 17p13 on cytogenetic analysis by FISH
* Glomerular filtration rate (GFR) \> 40 mL/minute as calculated by the Cockcroft-Gault formula (obtained =\< 14 days prior to registration)
* Total bilirubin =\< 2.5 x upper limit of normal (ULN) (obtained =\< 14 days prior to registration) unless due to Gilbert's disease; for those with a total bilirubin \> 2.5 x ULN, a direct bilirubin should be performed and must be \< 1.5 mg/dL for Gilbert's to be diagnosed

  * If value is higher due to hepatic involvement by CLL, patient is eligible
* Serum glutamic oxaloacetic transaminase (SGOT) (aspartate transaminase \[AST\])/serum glutamate-pyruvate transaminase (SGPT) (alanine transaminase \[ALT\]) =\< 3.0 x the institutional ULN (obtained =\< 14 days prior to registration)

  * If value is higher due to hepatic involvement by CLL, patient is eligible
* Prothrombin time (PT)/international normalized ratio (INR) \< 1.5 ULN and partial thromboplastin time (PTT) (activated partial thromboplastin time \[aPTT\]) \< 1.5 X ULN (obtained =\< 14 days prior to registration)

  * If value is higher due to hepatic involvement by CLL, patient is eligible
* No active hemolytic anemia requiring immunosuppressive therapy or other pharmacologic treatment; patients who have a positive Coombs test but no evidence of hemolysis are NOT excluded from participation
* No current use of corticosteroids; EXCEPTION: low doses of steroids (\< 10 mg of prednisone or equivalent dose of other steroid) used for treatment of non-hematologic medical condition (e.g. chronic adrenal insufficiency) is permitted
* No previous use of corticosteroids for autoimmune complications that have developed since the initial diagnosis of CLL; prior use of corticosteroids for reasons other than treatment of autoimmune complications is allowed
* No other active primary malignancy (other than non-melanomatous skin cancer or carcinoma in situ of the cervix) requiring treatment or limiting expected survival to =\< 2 years; NOTE: if there is a history of prior malignancy, they must not be receiving other specific treatment (other than hormonal therapy for their cancer)
* Able to adhere to the study visit schedule and other protocol requirements
* No major surgery within the last 4 weeks (28 days) of first dose of study drug or minor surgery within 3 days of first dose of study drug
* No radiation therapy =\< 4 weeks prior to registration
* Patients with human immunodeficiency virus (HIV) infection may be eligible provided they meet the following criteria:

  * CD4-positive cell count \>= lower limit of institutional normal
  * HIV viral load \< 10,000 copies HIV ribonucleic acid (RNA)/mL (if not on anti-HIV therapy) OR \< 50 copies HIV RNA/mL (if on anti-HIV therapy)
  * No evidence of hepatitis B or C infection
  * No evidence of resistant strains of HIV
  * No history of acquired immune deficiency syndrome (AIDS)-defining condition
* Patients must not have any of the following conditions:

  * Congestive heart failure or New York Heart Association Functional Classification III or IV congestive heart failure
  * History of myocardial infarction, unstable angina, or acute coronary syndrome within 6 months prior to registration
  * Recent infections requiring systemic treatment; need to have completed anti-biotic therapy \> 14 days before the first dose of study drug
  * Cerebral vascular accident or intracranial bleed within the last 6 months
  * Infection with known chronic, active hepatitis C
  * Serologic status reflecting active hepatitis B or C infection; patients that are positive for hepatitis B core antibody, hepatitis B surface antigen (HBsAg), or hepatitis C antibody must have a negative polymerase chain reaction (PCR) prior to enrollment (PCR positive patients will be excluded)
* Patients are not eligible if they require treatment with a strong cytochrome P450 (CYP) family 3, subfamily A (3A) inhibitor
* Patients may not be on any other investigational agents
* Patients may not have received warfarin or another vitamin K antagonist in the preceding 30 days
* Women must not be pregnant or breast-feeding since this study involves an investigational agent whose genotoxic, mutagenic, and teratogenic effects on the developing fetus and newborn are unknown; female patients of childbearing potential must have a negative serum pregnancy test within 2 weeks prior to registration to rule out pregnancy; female patients who are of non-reproductive potential are those who are post-menopausal by history (i.e. no menses for \>= 1 year); OR history of hysterectomy; OR history of bilateral tubal ligation; OR history of bilateral oophorectomy)
* Women of childbearing potential and sexually active males must be strongly advised to use an accepted and effective method of contraception or to abstain from sexual intercourse for 90 days after the last dose of study drug
* Patient must be able to swallow capsules and not have the following conditions:

  * Disease significantly affecting gastrointestinal function
  * Resection of the stomach or small bowel
  * Symptomatic inflammatory bowel disease
  * Ulcerative colitis
  * Partial or complete bowel obstruction
* Patient must not be on any other systemic immunosuppressant therapy other than corticosteroids within 28 days of the first dose of study drug
* Patient must not be vaccinated with live, attenuated vaccines within 4 weeks of first dose of study drug
* Patient must not have any known bleeding disorders (e.g., von Willebrand's disease) or hemophilia
* Patient must not have currently active, clinically significant hepatic impairment (\>= moderate hepatic impairment according to the NCI/Child Pugh)
B: Inclusion Criteria

1. Men and women:

   a. ≥ 65 years of age OR b. \> 18 and \< 65 years of age, provided that they meet at least one of the following criteria: i. Creatinine clearance 30 to 69 mL/min using the Cockcroft-Gault equation ii. A score higher than 6 on the CIRS-G (Appendix L).
2. ECOG performance status of 0, 1, or 2.
3. Diagnosis of CD20+ CLL that meets published diagnostic criteria (Hallek 2008):

   1. Monoclonal B cells (either kappa or lambda light chain restricted) that are clonally co-expressing ≥ 1 B-cell marker (CD19, CD20, or CD23) and CD5.
   2. Prolymphocytes may comprise ≤ 55% of blood lymphocytes.
   3. Presence of ≥ 5 x 109 B lymphocytes/L (5000 μL) in the peripheral blood (at any point since diagnosis)
4. Active disease meeting ≥ 1 of the following IWCLL 2008 criteria for requiring treatment:

   1. Evidence of progressive marrow failure as manifested by the development of, or worsening of, anemia (hemoglobin \< 10 g/dL) and/or thrombocytopenia (platelets \< 100,000/μL).
   2. Massive (i.e., ≥ 6 cm below the left costal margin), progressive, or symptomatic splenomegaly.
   3. Massive nodes (i.e., ≥ 10 cm in the longest diameter), progressive, or symptomatic lymphadenopathy.
   4. Progressive lymphocytosis with an increase of \> 50% over a 2-month period or a LDT of \< 6 months. LDT may be obtained by linear regression extrapolation of ALC obtained at intervals of 2 weeks over an observation period of 2 to 3 months. In subjects with initial blood lymphocyte counts of \< 30 x 109/L (30,000/μL), LDT should not be used as a single parameter to define indication for treatment. In addition, factors contributing to lymphocytosis or lymphadenopathy other than CLL (e.g., infections) should be excluded.
   5. Autoimmune anemia and/or thrombocytopenia that is poorly responsive to standard therapy.
   6. Constitutional symptoms documented in the subject's chart with supportive objective measures, as appropriate, defined as ≥ 1 of the following disease-related symptoms or signs:

   i. Unintentional weight loss ≥ 10% within the previous 6 months before Screening.

   ii. Significant fatigue (i.e., ECOG performance status 2; inability to work or perform usual activities).

   iii. Fevers higher than 100.5°F or 38.0°C for 2 or more weeks before Screening without evidence of infection.

   iv. Night sweats for \> 1 month before Screening without evidence of infection.
5. This criterion was deleted as of Protocol Amendment 3.
6. Meet the following laboratory parameters:

   1. ANC ≥ 750 cells/μL (0.75 x 109/L), or ≥ 500 cells/μL (0.50 x 109/L) in subjects with documented bone marrow involvement, and independent of growth factor support 7 days before assessment.
   2. Platelet count ≥ 50,000 cells/μL (50 x 109/L), or ≥ 30,000 cells/μL (30 x 109/L) in subjects with documented bone marrow involvement, and without transfusion support 7 days before assessment. Subjects with transfusion-dependent thrombocytopenia are excluded.
   3. Serum AST and ALT/SGPT ≤ 3.0 x ULN.
   4. Total bilirubin ≤ 1.5 x ULN.
   5. Estimated creatinine clearance (i.e., eGFR using Cockcroft-Gault) ≥ 30 mL/min
7. Able to receive all outpatient treatment, all laboratory monitoring, and all radiologic evaluations.
8. Women who are sexually active and can bear children must agree to use highly effective forms of contraception while on the study and for 2 days after the last dose of acalabrutinib or 18 months after the last dose of obinutuzumab in combination with chlorambucil, whichever is longer. Highly effective forms of contraception are defined in Section 6.4.4.
9. Men who are sexually active and can beget children must agree to use highly effective forms of contraception during the study and for 90 days after the last dose of obinutuzumab or chlorambucil, whichever is later. Highly effective forms of contraception are defined in Section 6.4.4.
10. Men must agree to refrain from sperm donation during the study and for 90 days after the last dose of obinutuzumab or chlorambucil, whichever is later.
11. Must be willing and able to adhere to the study visit schedule, understand and comply with other protocol requirements, and provide written informed consent and authorization to use protected health information (in accordance with national and local subject privacy regulations). Note vulnerable subjects, as defined in International Conference on Harmonisation (ICH) GCP, are not allowed on this protocol (e.g., prisoners or institutionalized subjects).

Exclusion Criteria:

1. Any prior systemic treatment for CLL (note: Prior localized radiotherapy is allowed).
2. Known CNS lymphoma or leukemia.
3. Known prolymphocytic leukemia or history of, or currently suspected, Richter's syndrome.
4. Missing or incomplete documentation of FISH results reflecting the presence or absence of 17p del and the percentage of cells with the deletion in subject records before randomization.
5. Uncontrolled AIHA or ITP defined as declining hemoglobin or platelet count secondary to autoimmune destruction within the screening period or requirement for high doses of steroids (\> 20 mg daily of prednisone daily or equivalent).
6. Corticosteroid use \> 20 mg within 1 week before first dose of study drug, except as indicated for other medical conditions such as inhaled steroid for asthma, topical steroid use, or as premedication for administration of study drug or contrast. For example, subjects requiring steroids at daily doses \> 20 mg prednisone equivalent systemic exposure daily, or those who are administered steroids for leukemia control or WBC count lowering are excluded.
7. Major surgery within 4 weeks before first dose of study drug.
8. History of prior malignancy except for the following:

   1. Malignancy treated with curative intent and with no evidence of active disease present for more than 3 years before Screening and felt to be at low risk for recurrence by treating physician.
   2. Adequately treated lentigo maligna melanoma without current evidence of disease or adequately controlled non-melanomatous skin cancer.
   3. Adequately treated cervical carcinoma in situ without current evidence of disease.
9. Significant cardiovascular disease such as uncontrolled or symptomatic arrhythmias, congestive heart failure, or myocardial infarction within 6 months of screening, or any Class 3 or 4 cardiac disease as defined by the New York Heart Association Functional Classification, or QTc \> 480 msec at screening.
10. Unable to swallow capsules or malabsorption syndrome, disease significantly affecting gastrointestinal function, or resection of the stomach or small bowel or gastric bypass, symptomatic inflammatory bowel disease, or partial or complete bowel obstruction.
11. Uncontrolled active systemic fungal, bacterial, viral, or other infection (defined as exhibiting ongoing signs/symptoms related to the infection and without improvement, despite appropriate antibiotics or other treatment) or ongoing intravenous anti-infective treatment.
12. Known history of infection with HIV. 13. Vaccinated with live, attenuated vaccines within 4 weeks of first dose of study drug.

14. Serologic status reflecting active hepatitis B or C infection. Subjects with hepatitis B core antibody positive who are surface antigen negative or who are hepatitis C antibody positive will need to have a negative PCR result before randomization. Those who are hepatitis B surface antigen positive or hepatitis B PCR positive and those who are hepatitis C PCR positive will be excluded.

15. History of stroke or intracranial hemorrhage within 6 months before randomization.

16. Known history of a bleeding diathesis (e.g., hemophilia, von Willebrand disease).

17. Requires or receiving anticoagulation with warfarin or equivalent vitamin K antagonists (e.g., phenprocoumon) within 7 days of first dose of study drug.

18. Requires treatment with proton-pump inhibitors (e.g., omeprazole, esomeprazole, lansoprazole, dexlansoprazole, rabeprazole, or pantoprazole).

19. Breast feeding or pregnant. 20. Current life-threatening illness, medical condition, or organ system dysfunction which, in the Investigator's opinion, could compromise the subject's safety or put the study at risk.

21. Concurrent participation in another therapeutic clinical trial. 22. Requires treatment with a strong CYP3A inhibitor/inducer. 23. Presence of a gastrointestinal ulcer diagnosed by endoscopy within 3 months before screening.
C: Inclusion Criteria:

1. Must understand and voluntarily sign an informed consent form.
2. Age ≥ 18 years at the time of signing the informed consent form.
3. Must be able to adhere to the study visit schedule and other protocol requirements.
4. Must have a documented diagnosis of CLL (IWCLL guidelines for the diagnosis and treatment of chronic lymphocytic leukemia1.
5. Must have been treated with one of the first line induction therapies: fludarabine/cyclophosphamide, fludarabine/rituximab, fludarabine/cyclophosphamide/rituximab, pentostatin/cyclophosphamide/rituximab or bendamustine/rituximab.
6. Must have achieved a response of at least PR ((IWCLL guidelines for the diagnosis and treatment of chronic lymphocytic leukemia )following completion (minimum 4 cycles) of first line induction therapy prior to randomization, and have either:

   * MRD levels in the peripheral blood at final restaging of ≥10-2 or
   * MRD levels in the peripheral blood at final restaging of ≥10-4 - \<10-2 combined with an unmutated IGHV-status or 17p-deletion or TP53 mutation.
7. Must have completed last cycle of at least 4 cycles of first-line induction no less than 8 weeks (56 days) and no greater than 20 weeks (140 days) prior to randomization.
8. Subjects who completed first-line induction treatment with less than 6 cycles but at least 4 cycles should document reason for early discontinuation.
9. Must have an Eastern Cooperative Oncology Group (ECOG see appendix 11.13) performance status score of ≤2.
10. Negative serological Hepatitis B test or negative PCR in case of positive serological test without evidence of an active infection, negative testing of Hepatitis C RNA, negative HIV test within 6 weeks prior to randomization.
11. Females of childbearing potential (FCBP)† must:

    * Have two negative medically supervised pregnancy tests prior to starting of study therapy. She must agree to ongoing pregnancy testing during the course of the study, and after end of study therapy. This applies even if the subject practices complete and continued sexual abstinence.
    * Either commit to continued abstinence from heterosexual intercourse (which must be reviewed on a monthly basis) or agree to use, and be able to comply with, two reliable forms of effective contraception simultaneously to achieve a PEARL-Index \<1 without without interruption (Highly effective methods: Intrauterine device (IUD), Hormonal (birth control pills, injections, implants), Tubal ligation, Partner's vasectomy, Additional effective methods: Male condom, Diaphragm, Cervical Cap). 28 days prior to starting study drug, during the study therapy (including dose interruptions), and for 28 days after discontinuation of study therapy.
12. Male subjects must:

    * Agree to use a condom during sexual contact with a FCBP, even if they have had a vasectomy, throughout study drug therapy, during any dose interruption and after cessation of study therapy.
    * Agree to not donate semen during study drug therapy and for a period after end of study drug therapy.
13. All subjects must:

    * Have an understanding that the study drug could have a potential teratogenic risk.
    * Agree to abstain from donating blood while taking study drug therapy and following discontinuation of study drug therapy.
    * Agree not to share study medication with another person.
    * Be counseled about pregnancy precautions and risks of fetal exposure.
14. Willingness to inform the general practitioner

Exclusion Criteria:

1. A CIRS Score of more than 6 or a single score of 4 for an organ system limiting the ability to receive an intensive treatment
2. Active infections requiring systemic antibiotics.
3. Systemic infection CTC grade 3 or 4 that has not resolved \> 2 months prior to randomization in spite of adequate anti-infective therapy.
4. Autologous or allogeneic bone marrow transplant as first line therapy.
5. Pregnant or lactating females.
6. Systemic treatment for CLL in the interval between completing the last cycle of first-line induction therapy and randomization.
7. Participation in any clinical study or having taken any investigational therapy which would interfere with the study drug for a disease other than CLL within 28 days prior to initiating maintenance therapy.
8. Known presence of alcohol and/or drug abuse.
9. Central nervous system (CNS) involvement as documented by spinal fluid cytology or imaging. Subjects who have signs or symptoms suggestive of leukemic meningitis or a history of leukemic meningitis must have a lumbar puncture procedure performed within two weeks prior to randomization.
10. Prior history of malignancies, other than CLL, unless the subject has been free of the disease for ≥5 years. Exceptions include the following:

    * Basal cell carcinoma of the skin
    * Squamous cell carcinoma of the skin
    * Carcinoma in situ of the cervix
    * Carcinoma in situ of the breast
    * Incidental histological finding of prostate cancer (TNM stage of T1a or T1b)
11. History of renal failure requiring dialysis.
12. Prior therapy with lenalidomide.
13. Any of the following laboratory abnormalities:

    * Calculated (method of Cockcroft-Gault) creatinine clearance of \<60 mL/min
    * Absolute neutrophil count (ANC) \< 1,000/μL (1.0 X 109/L)
    * Platelet count \< 50,000/μL (50 X 109/L)
    * Serum aspartate aminotransferase (AST)/serum glutamic-oxaloacetic transaminase (SGOT) or alanine transaminase (ALT)/serum glutamate pyruvate transaminase (SGPT) \> 3.0 x upper limit of normal (ULN)
    * Serum total bilirubin \> 2.0 mg/dL (with the exception of Gilbert's Syndrome)
14. Uncontrolled hyperthyroidism or hypothyroidism.
15. Venous thromboembolism within one year.
16. ≥ Grade-2 neuropathy.
17. Uncontrolled autoimmune hemolytic anemia or thrombocytopenia.
18. Disease transformation (active) (i.e. Richter's Syndrome, prolymphocytic leukemia).
19. Known allergy to allopurinol if the subject has bulky disease.
20. Prisoners, or subjects who are institutionalized by regulatory or court order or persons who are who are in dependence to the sponsor or an investigator.
D: Inclusion Criteria:

* B-CLL (CD23+, CD5+, CD19+, CD20+)
* Treatment indication according to NCI criteria
* Age \>= 18 yrs
* No previous treatment of CLL by chemo-, radio- or immunotherapy
* Life expectancy \> 6 months
* Written informed consent
* Women of non-childbearing potential or women of childbearing potential and men using effective contraception

Exclusion Criteria:

* Active bacterial, viral or fungal infection
* Positivity for HIV, Hepatitis B or C
* Reduce organ functions and bone marrow dysfunction not due to CLL
* Creatinine clearance below 30 ml/min
* Patients with medical conditions requiring long-term use of systemic corticosteroids during study treatment
* Patients with a history of severe cardiac disease
* Other known co-morbidity with the potential to dominate survival
* Transformation to aggressive B-cell malignancy
* Known hypersensitivity to humanised monoclonal antibodies or any of the study drugs
* Pregnant or breast-feeding women
* Any co-existing medical or psychological condition that would preclude participation in the study or compromise ability to give informed consent

Answer: C