Negative urine or serum pregnancy test done =< 7 days prior to registration for females of child bearing potential only Negative serum pregnancy test within 2 weeks prior to registration for women of childbearing potential Negative serum or urine pregnancy test done =< 7 days prior to registration, for women of childbearing potential only Negative serum pregnancy test for women of childbearing potential within 14 days of study registration Patients of childbearing potential must have a negative serum pregnancy test and must agree to practice an effective means of birth control Females only:* Urine or serum pregnancy test negative assessed within seven (7) days prior to the start of therapy Females of childbearing potential must have a negative pregnancy test result and must agree to use a medically acceptable method of contraception throughout the entire study period and for 30 days after the last dose of study drug* Childbearing potential is defined as girls who are > Tanner stage 2, except for those who have documented pan pituitary insufficiency or other hormonal state incompatible with pregnancy* Urine pregnancy tests are acceptable Negative pregnancy test done =< 7 days prior to registration, for women of childbearing potential only Negative pregnancy test done =< 7 days prior to registration, for women of childbearing potential only Women of childbearing potential must have a negative serum pregnancy test within 21 days prior to study entry Negative serum pregnancy test done =< 7 days prior to registration only for women determined to be of childbearing potential by their treating physician Non-pregnant and non-lactating; patients of child-bearing potential must have a negative pregnancy test within 7 days prior to registration; perimenopausal patients must be amenorrheic > 12 months to be considered not of child-bearing potential Women of childbearing potential only: negative pregnancy test done =< 7 days prior to registration Pregnancy or lactation at the time of study entry; (Note: pregnancy testing must be performed within 2 weeks prior to randomization according to institutional standards for women of childbearing potential) Negative serum pregnancy test within 2 weeks prior to registration for women of childbearing potential Negative urine or serum pregnancy test within 14 days prior to registration for women of childbearing potential Negative serum pregnancy test within 14 days prior to registration for women of childbearing potential Women of childbearing potential must have a negative pregnancy test within 14 days of registration Pregnant or breast-feeding women may not be entered on this study; pregnancy tests must be obtained in girls who are post-menarchal; negative serum or urine pregnancy test within 3 days prior to enrollment Women of childbearing potential must have a negative serum pregnancy test within 7 days of the first dose of study treatment Women of childbearing potential must have a negative serum pregnancy test within 14 days prior to registration Women with a positive pregnancy test on enrollment or prior to investigational product administration Female participants who are pregnant or breastfeeding; women of childbearing potential must have a negative urine or serum pregnancy test within 72 hours prior to randomization; all women of childbearing potential must be willing to comply with an acceptable birth control regimen to prevent pregnancy while receiving treatment and for 3 months after treatment is discontinued as determined by the Investigator; post-menopausal women must be amenorrheic for at least 12 months to be considered of non-childbearing potential; (note: a woman of childbearing potential is one who is biologically capable of becoming pregnant; this includes women who are using contraceptives or whose sexual partners are either sterile or using contraceptives) Women of childbearing potential must have a negative serum pregnancy test within 7 days prior to initiation of treatment; women will be considered not of childbearing potential if they are surgically sterile (bilateral oophorectomy or hysterectomy) and/or post-menopausal (amenorrheic for at least 12 months); should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately; the potential hazard to the fetus should be explained to the patient and partner (as applicable) Not pregnant and not nursing; for women of childbearing potential only, a negative serum pregnancy test done =< 7 days prior to registration is required Negative serum pregnancy test within 14 days prior to registration for women of childbearing potential Females of childbearing potential (FCBP) must have a negative serum or urine pregnancy test with a sensitivity of at least 50 mIU/mL prior to starting therapy and prior to beginning another cycle (if applicable) Not pregnant and not nursing; women of childbearing potential only, a negative pregnancy test done =< 7 days prior to registration is required For females of child-bearing potential, negative serum/urine pregnancy test within 14 days prior to study registration Negative serum pregnancy test =< 7 days prior to registration for women of childbearing potential* NOTE: women will be considered not of childbearing potential if they are surgically sterile (bilateral oophorectomy or hysterectomy) and/or post-menopausal (amenorrheic for at least 12 months) Negative serum pregnancy test obtained for females of child-bearing potential within 28 days prior to step 2 registration For females of child-bearing potential, negative serum or urine pregnancy test within 14 days prior to study registration Female patients of childbearing potential should have a negative urine or serum pregnancy test within 24 hours prior to receiving the first dose of study medication; if the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required Women of childbearing potential must have a negative serum pregnancy test within 14 days prior to registration or randomization Negative serum pregnancy test (in women of childbearing potential) =< 14 days prior to Step 2; women of childbearing potential and men who are sexually active must practice adequate contraception while on study Pregnancy or lactation at the time of study entry; (note: pregnancy testing according to institutional standards for women of childbearing potential must be performed within 2 weeks prior to randomization) Women of child-bearing potential must have a negative pregnancy test Not pregnant and not nursing; for women of childbearing potential only, a negative pregnancy test done =< 7 days prior to registration is required Not pregnant and not nursing; therefore, for women of childbearing potential only, a negative pregnancy test done =< 7 days prior to re-registration is required Negative (serum or urine) pregnancy test, for women of childbearing potential only Women of childbearing potential must have a negative urine pregnancy test within 7 days prior to initiation of treatment; women will be considered not of childbearing potential if they are surgically sterile (bilateral oophorectomy or hysterectomy) and/or post menopausal (amenorrheic for at least 12 months); should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately Women of childbearing potential must have a negative urine pregnancy test within 7 days prior to initiation of treatment; women will be considered not of childbearing potential if they are surgically sterile (bilateral oophorectomy or hysterectomy) and/or post-menopausal (amenorrheic for at least 12 months) Not pregnant and not nursing; for women of childbearing potential only, a negative urine or serum pregnancy test done =< 14 days prior to registration and confirmation they are not nursing is required Women of childbearing potential must have a negative qualitative serum pregnancy test =< 14 days prior to Step 1 registration Negative serum pregnancy test within 7 days of treatment initiation with ibrutinib in women of childbearing potential (WOCBP) Not pregnant and not nursing; for women of childbearing potential only, a negative pregnancy test done =< 7 days prior to registration is required Negative serum pregnancy test result for females of child bearing potential Pregnancy test (urine or serum beta-human chorionic gonadotropin [HCG]) done within 72 hours before randomization must be negative (for women of childbearing potential only); if urine pregnancy results are positive or cannot be confirmed as negative, a serum pregnancy test will be required Not pregnant and not nursing; for women of childbearing potential only, a negative pregnancy test done =< 7 days prior to registration is required For women of childbearing potential, a negative serum pregnancy test within 14 days of registration Negative serum pregnancy test within 30 days prior to registration for females of childbearing potential. Female patients of childbearing potential must have a negative serum or urine pregnancy test Females of childbearing potential must have a negative serum or urine pregnancy test within 72 hours prior to start of first cycle of therapy If the patient is a woman is of childbearing potential, a serum pregnancy test, obtained within 14 days prior to step 2 registration, must be negative, and, if randomized to receive radiation therapy, the woman must agree to use contraception Pregnancy or lactation at the time of study registration; (Note: Pregnancy testing according to institutional standards for women of childbearing potential must be performed within 2 weeks prior to study registration) Not pregnant and not nursing; for women of childbearing potential only, a negative urine or serum pregnancy test done =< 8 days prior to registration is required Negative urine or serum pregnancy test for women of childbearing potential within 7 days prior to study entry Any patients of childbearing potential must have a negative pregnancy test Women of childbearing age must have a negative serum pregnancy test within 14 days prior to registration