Ibrutinib in Treating Participants With Untreated High Risk Smoldering Mantle Cell Lymphoma

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    M.D. Anderson Cancer Center
Updated on 25 January 2021
platelet count
measurable disease
neutrophil count
tumor cells
mantle cell lymphoma
cyclin d1
bone marrow infiltration


This phase II trial studies how well ibrutinib works in treating participants with untreated high risk smoldering mental cell lymphoma. Ibrutinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.



I. To measure the progression-free survival (PFS) in previously untreated high-risk smoldering mental cell lymphoma (MCL) patients treated with ibrutinib.


I. To evaluate the safety of ibrutinib in previously untreated high risk smoldering MCL.

II. To evaluate the response rate and duration of response of ibrutinib. III. To study clonal evolution in MCL while under ibrutinib.


I. To collect serial samples for our correlative study (plasma, peripheral blood mononuclear cells [PBMC], initial tumor biopsy).


Participants receive ibrutinib orally (PO) once daily (QD) on days 1-28. Courses repeat every 28 days for 5 years in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, participants are followed up every 2 months for 6 months, every 2-4 months for 2 years, then every 4-6 months thereafter.

Condition Lymphoma, Non-Hodgkin's Lymphoma, Mantle cell lymphoma, Mantle cell lymphoma, Non-Hodgkin's Lymphoma
Treatment Ibrutinib
Clinical Study IdentifierNCT03282396
SponsorM.D. Anderson Cancer Center
Last Modified on25 January 2021


Yes No Not Sure

Inclusion Criteria

Confirmed diagnosis of MCL with CD20 and cyclin D1 positivity in tissue biopsy. Patients must have never received any prior therapy for their disease. Patients have been observed for 3 - 6 months with no progression as per imaging assessments
High risk smoldering MCL: non-blastoid variant histology, non-pleomorphic variant histology with a Ki-67 of 20-30% and absence of B symptoms with/without white blood cell (WBC) 15-30k, lymph nodes =< 5 cm in diameter, non-blastoid/pleomorphic with a complex karyotype, TP53 mutated or wild type, del17p (fluorescence in situ hybridization [FISH]% 10-50%), MYC positive , presence of NOTCH2, NSD2 or more than one mutation in the initial next generation sequencing (NGS) panel testing but who are asymptomatic and do not have any clinical indication to start systemic therapy
Understand and voluntarily sign an institutional review board (IRB)-approved informed consent form
Patients should in general have bi-dimensional measurable disease with their biggest tumor less than or equal to 5 cm. (Bone marrow or gastrointestinal [GI] only involvement is acceptable)
Eastern Cooperative Oncology Group (ECOG) performance status of 2 or less
With minimal disease related symptoms but anxious to start systemic therapy
Absence of cytopenia attributed to bone marrow (BM) infiltration
Absolute neutrophil count (ANC) > 1000/mm^3
Platelet count > 100,000/mm^3
Patients who have bone marrow infiltration by MCL are eligible if their ANC is >= than 500 or their platelet level is >= than 50,000 /mm^3. Platelet transfusions are allowed
Aspartate aminotransferase (AST)/serum glutamic oxaloacetic transaminase (SGOT) and alanine aminotransferase (ALT)/serum glutamic pyruvic transaminase (SGPT) < 3 x upper limit of normal or < 5 x upper limit of normal if hepatic metastases are present
Serum bilirubin < 1.5 mg/dl
Creatinine (Cr) clearance >= 30 mL/min
Disease free of prior malignancies of equal to or greater than 6 months with exception of currently treated basal cell, squamous cell carcinoma of the skin, carcinoma "in situ" of the cervix or breast, or other malignancies in remission (including prostate cancer patients in remission from radiation therapy, surgery or brachytherapy), not actively being treated. Patients must be willing to receive transfusions of blood products
Willing and able to participate in all study related procedures and therapy including swallowing capsules without difficulty and having a screening core biopsy
Female subjects who are of non-reproductive potential (i.e., post-menopausal by history - no menses for >= 1 year; OR history of hysterectomy; OR history of bilateral tubal ligation; OR history of bilateral oophorectomy). Female subjects of childbearing potential must have a negative serum pregnancy test upon study entry
Male and female subjects who agree to use highly effective methods of birth control (e.g., implants, injectables, combined oral contraceptives, some intrauterine devices [IUDs], sexual abstinence, or sterilized partner) and a barrier method (e.g., condoms, vaginal ring, sponge, etc) during the period of therapy and for 30 days after the last dose of study drug for females and 90 days for males

Exclusion Criteria

Any serious medical condition including but not limited to uncontrolled hypertension, diabetes mellitus, active/symptomatic coronary artery disease, chronic obstructive pulmonary disease (COPD), renal failure, splenomegaly, leukemic features, active hemorrhage, or psychiatric illness that, in the investigator's opinion, places the patient at unacceptable risk and would prevent the subject from signing the informed consent form
Patients with ANY of the following risk factors
Significant disease related symptoms (including significant B symptoms)
Blastoid variant histology
Pleomorphic variant histology
Ki-67 > 30%
Bulky tumors > 5 cm
Central nervous system (CNS) involvement at diagnosis
All patients must not have received any prior treatment for mantle cell lymphoma
Prior exposure to BTK inhibitor
Pregnant or breastfeeding females
Known history of human immunodeficiency virus (HIV) or active with hepatitis C virus (HCV) or hepatitis B virus (HBV). Subjects who are positive for hepatitis B core antibody, hepatitis B surface antigen, or hepatitis C antibody must have a negative polymerase chain reaction (PCR) result before enrollment. Those who are PCR positive will be excluded
All patients with history of central nervous system lymphoma
History of stroke or intracranial hemorrhage within 6 months prior to signing the consent
Currently active, clinically significant cardiovascular disease such as uncontrolled arrhythmia or any class 3 or 4 congestive heart failure as defined by the New York Heart Association Classification, or a history of myocardial infarction, unstable angina, or acute coronary syndrome within 6 months prior to randomization
Significant screening electrocardiogram (ECG) abnormalities including left bundle branch block, 2nd degree atrioventricular (AV) block type II, 3rd degree block, bradycardia (< 50 beats per minute [bpm]), or corrected QT (QTc) > 500 msec
Unable to swallow capsules, malabsorption syndrome, disease significantly affecting gastrointestinal function, or resection of the stomach or small bowel or ulcerative colitis, symptomatic inflammatory bowel disease, or partial or complete bowel obstruction
Requires concomitant anticoagulation with warfarin or equivalent vitamin K antagonist, active treatment for pulmonary embolism (PE)/ deep vein thrombosis (DVT) and persons with mechanical cardiac valves
Subject who received a strong cytochrome P450 (CYP) 3A inhibitor within 7 days prior to the first dose of ibrutinib or subject who requires continuous treatment with a strong CYP3A inhibitor
Subjects with chronic liver disease and hepatic impairment meeting Child-Pugh class C
Any uncontrolled active systemic infection
Major surgery within 4 weeks of first dose of study drug
Vaccinated with live, attenuated vaccines within 4 weeks of first dose of study drug
Recent infection requiring systemic treatment that was completed =< 14 days before the first dose of study drug
Known bleeding disorders (e.g., von Willebrand's disease or hemophilia)
Unresolved toxicities from prior anticancer therapy, defined as having not resolved to Common Terminology Criteria for Adverse Event (CTCAE, version [v] 4.0), grade =< 1, or to the levels dictated in the inclusion/exclusion criteria with the exception of alopecia
Concurrent systemic immunosuppressant therapy within 21 days of the first dose of study drug
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