Ibrutinib With Radiation and Temozolomide in Patients With Newly Diagnosed Glioblastoma

  • End date
    Dec 21, 2022
  • participants needed
  • sponsor
    Case Comprehensive Cancer Center
Updated on 21 March 2022
neutrophil count
combined modality therapy
stereotactic biopsy


Safety of combination of ibrutinib and radiation at various dose levels in unmethylated o6-methylguanine-DNA-methyltransferase (MGMT) glioblastoma and study of ibrutinib, temozolomide, and radiation combination therapy in methylated MGMT glioblastoma.


There are a number of brain tumor studies including those in NCI consortium that are not including temozolomide for increased toxicity with novel agents or other drugs when added to temozolomide and radiation. However, if the combination of ibrutinib and radiation in unmethylated MGMT glioblastoma patient population is safe at every dose level we can study the safety of ibrutinib, radiation and Temozolomide in the methylated patient population. Concomitant use of radiation will lead to break down of the blood brain barrier and increase ibrutinib delivery to the brain tumor and hence the rationale to combine ibrutinib with radiation with or without temozolomide.

November 2020:

420 mg of ibrutinib plus temozolomide and radiation was found to be safe - up to 36 participants can be treated at the expansion cohort in both arm 1 and arm 2.

Condition Glioblastoma
Treatment Ibrutinib, Radiation, Temozolomide (TMZ)
Clinical Study IdentifierNCT03535350
SponsorCase Comprehensive Cancer Center
Last Modified on21 March 2022


Yes No Not Sure

Inclusion Criteria

Arm 1
Supratentorial unmethylated MGMT glioblastoma
Gadolinium MRI or contrast CT within 28 days of starting treatment
Karnofsky performance ≥ 70% (<http://www.npcrc.org/files/news/karnofsky_performance_scale.pdf>)
Absolute neutrophil count > 1500/mm3, platelets > 100,000/mm3, Creatinine ≤ 1.7 mg/dl, total bilirubin ≤ 1.5mg/dl, transaminases ≤ 3 times above the upper limits of normal
Must be able to provide written informed consent
Patients of reproductive potential must use an acceptable form of birth control to avoid contraception during the period of therapy and up to 90 days after the last dose of study drug. (eg. implants, injectable, oral contraceptives, intrauterine device (IUD), abstinence, and a barrier method which includes, but is not limited to condoms, vaginal rings, and sponges)
Female patients must have a negative pregnancy test upon study entry
No concurrent malignancy with the exception of curatively treated early stage bladder and prostate cancer, basal or squamous cell carcinoma of the skin or carcinoma in situ of the cervix and breast, adequately treated stage I or II cancer from which the patient is in complete remission. Any other prior malignancies must be disease free for ≥ 3 years
Prothrombin time (PT) / international normalized ratio (INR) < 1.5 x upper limit of normal (ULN) and partial thromboplastin time (PTT) (aPTT) < 1.5 x ULN
Patient with any surgery more than stereotactic biopsy are eligible so that there is enough tissue for MGMT analysis
Arm 2
Arm 1 inclusion criteria must be met with the exception of the histology of the cancer, which must be methylated MGMT glioblastoma

Exclusion Criteria

Serious concurrent infection or illness
Patients who are pregnant or breastfeeding
Patients receiving concurrent therapy for their tumor
Concurrent or prior malignancy unless curatively treated carcinoma-in-situ or basal cell carcinoma of the skin
Repeat craniotomy for tumor therapy after receiving radiation and TMZ treatment
Patients who received other chemotherapy or investigational agents in addition to radiation therapy and accompanying TMZ treatment
Previous ibrutinib or other Bruton's tyrosine kinase (BTK) inhibitor use or allergies to components of the study drug
Use of anticoagulants (including warfarin, other coumadin-derivative anticoagulant, vitamin K antagonists, or low molecular weight heparin)
Use of drugs known to be moderate and strong inhibitor or inducers of the P450 isoenzyme CYP3A. Participants must be off P450/CYP3A inhibitors and inducers for at least a week prior to starting the study drug
Active, significant liver impairment (Child-Pugh class B or C)
Patient is using systemic immunosuppressant therapy, including cyclosporineA, tacrolimus, sirolimus, and other such medications, or chronic administration of > 5 mg/day or prednisone or the equivalent.Participants must be off of immunosuppressant therapy for at least 21days prior to the first dose of the study drug. Patients can be on steroids for brain edema
Significant EKG abnormalities and active and significant cardiovascular disease within 6 months of screening
Pregnant or breastfeeding women. Male patients that intend to father a child while enrolled or 90 days after the last dose of the study drug
Unwillingness to comply with the protocol
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
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