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Genetic Implications: Genetic Implications

eye- broo-ti-nib

Trade Name(s)

  • Imbruvica

Ther. Class.

Pharm. Class.
kinase inhibitors


  • Mantle cell lymphoma (MCL) in patients who have not responded to at least one previous therapy.
  • Chronic lymphocytic leukemia (CLL)/small lymphocytic leukemia (SLL).
  • Genetic implication CLL/SLL in patients with the 17p deletion.
  • Waldenström's macroglobulinemia.
  • Marginal zone lymphoma (MZL) in patients who require systematic therapy and have received ≥1 anti-CD20–based therapy.


Genetic implication Binds to and inactivates Bruton's tyrosine kinase (BTK). Inhibits malignant B-cell proliferation. A deletion in chromosome 17 (17p deletion) is associated with poor responses to standard treatment for CLL.

Therapeutic Effect(s):

  • Decreased progression of MCL.
  • Decreased progression of and improved survival with CLL/SLL.
  • Decreased progression of Waldenström's macroglobulinemia.
  • Decreased progression of MZL.


Absorption: Well absorbed following oral administration.

Distribution: Unknown.

Protein Binding: 97.3%

Metabolism and Excretion: Mostly metabolized, primarily by the CYP3A enzyme system. One minor metabolite has antineoplastic activity. Metabolites are mostly eliminated in feces (80%), <10% excreted in urine.

Half-life: 4–6 hr.


PO1.9 mo†unknownunknown
†Median time to response.


Contraindicated in:

  • Moderate or severe hepatic impairment;
  • Concurrent use of strong CYP3A4 inducers/inhibitors;
  • OB: May cause fetal harm; avoid pregnancy;
  • Lactation: Breastfeeding should be avoided.

Use Cautiously in:

  • Moderate inhibitors of CYP3A4 (↓ dose of ibrutinib may be necessary);
  • Concurrent use of antiplatelet agents/anticoagulants (↑ risk of bleeding);
  • Surgical procedures (if possible withhold for 3–7 days pre- and post-operatively;
  • Rep: Females of reproductive potential and men should use effective contraception.

Adverse Reactions/Side Effects


CV: hypertension, peripheral edema, atrial fibrillation/flutter

Resp: dyspnea

GI: abdominal pain, ↓ appetite, constipation, diarrhea, vomiting


EENT: rash

Hemat: BLEEDING, neutropenia, thrombocytopenia, anemia

MS: musculoskeletal pain

Misc: INFECTIONS, SECOND MALIGNANCIES, tumor lysis syndrome

* CAPITALS indicate life-threatening.
Underline indicate most frequent.




Concurrent use of St. John's wort ↓ blood levels and effectiveness and should be avoided.

natural food interaction

Grapefruit juice or Seville oranges↑ blood levels and the risk of toxicity, avoid concurrent ingestion.



PO: (Adults) 560 mg once daily until disease progression or unacceptable toxicity; Concurrent use of moderate CYP3A4 inhibitors– 140 mg once daily until disease progression or unacceptable toxicity.

CLL/SLL or Waldenström's Macroglobulinemia

PO: (Adults) 420 mg once daily until disease progression or unacceptable toxicity; Concurrent use of moderate CYP3A4 inhibitors– 140 mg once daily until disease progression or unacceptable toxicity.

Hepatic Impairment
PO: (Adults) Mild hepatic impairment (Child–Pugh A)– 140 mg once daily.


Capsules: 140 mg


  • Assess for signs and symptoms of infection (fever, chills) during therapy.
  • Monitor for signs and symptoms of bleeding (blood in stools or urine, prolonged or uncontrolled bleeding) during therapy.
  • Interrupt therapy for any non-hematological toxicities ≥Grade 3 until resolution to Grade 1 or baseline.
  • Monitor for tumor lysis syndrome (malignant disease progression, high WBC counts, hyperuricemia, hyperkalemia, hyperphosphatemia, hypocalcamia, and/or dehydration). Prevent by maintain adequate hydration and correcting uric acid levels prior to starting ibrutinib.

Lab Test Considerations: Monitor CBC monthly; may cause neutropenia, thrombocytopenia, and anemia. Interrupt therapy for ≥Grade 3 neutropenia with infection or fever, or Grade 4 hematological toxicities.

  • Monitor serum creatinine levels periodically during therapy; may cause renal failure.

Potential Diagnoses


  • PO: Administer once daily with a whole glass of water at the same time each day. Swallow capsule whole; do not open, crush, or chew.
    • If therapy is interrupted for any adverse reactions, once symptoms have resolved to Grade 1 or baseline, reinitiate therapy at starting dose. If toxicity reoccurs, reduce dose by 1 capsule (140 mg/day); restart dose after first toxicity occurrence 560 mg/day; second occurrence at 420 mg/day, third occurrence at 280 mg/day, and if fourth toxicity occurs discontinue therapy.
    • Consider holding doses for 3–7 days before and after surgery.

Patient/Family Teaching

  • Instruct patient to take ibrutinib as directed, at the same time each day. Take missed doses as soon as remembered on same day and return to normal schedule; do not take extra capsules to make up for missed dose.
  • Caution patient to avoid grapefruit, grapefruit juice, and Seville oranges during therapy; may increase amount of ibrutinib in blood.
  • Advise patient to maintain adequate hydration during therapy to prevent renal failure.
  • Instruct patient to notify health care professional if signs and symptoms of infection, tumor lysis syndrome, or bleeding (blood in stools or black stools, pink or brown urine, unexpected bleeding or uncontrollable severe bleeding, vomiting blood or vomit that looks like coffee grounds, coughing up blood or blood clots, increased bruising, dizziness or weakness, confusion, change in speech, headache that last a long time) occur.
  • Inform patient of risk of other types of cancer including skin cancer.
  • Advise patient of common side effects: low blood platelet count, diarrhea, low white blood cell count, low red blood cell count, fatigue, muscle and bone pain, swelling legs and feet, upper respiratory tract infection, nausea, bruising, shortness of breath, constipation, rash, stomach pain, vomiting, decreased appetite. Instruct patient to notify health care professional if diarrhea is persistent.
  • Advise patient to notify health care professional of medication regimen before treatment or surgery.
  • Advise patient to notify health care professional of all Rx or OTC medications, vitamins, or herbal products being taken and to consult with health care professional before taking other medications.
  • Rep: Advise female patient to use effective contraception and avoid pregnancy and breastfeeding during and for at least 1 mo following end of therapy; may be harmful to fetus.

Evaluation/Desired Outcomes

  • Decreased progression of mantle cell lymphoma.
  • Decreased progression of CLL/SLL.
  • Decreased progression of Waldenström's macroglobulinemia.
  • Decreased progression of MZL.
ibrutinib is a sample topic from the Davis's Drug Guide.

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Quiring, Courtney, et al. "Ibrutinib." Davis's Drug Guide, 16th ed., F.A. Davis Company, 2019. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Davis-Drug-Guide/110113/12/ibrutinib.
Quiring C, Sanoski CA, Vallerand AH. Ibrutinib. Davis's Drug Guide. 16th ed. F.A. Davis Company; 2019. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Drug-Guide/110113/12/ibrutinib. Accessed June 20, 2019.
Quiring, C., Sanoski, C. A., & Vallerand, A. H. (2019). Ibrutinib. In Davis's Drug Guide. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Drug-Guide/110113/12/ibrutinib
Quiring C, Sanoski CA, Vallerand AH. Ibrutinib [Internet]. In: Davis's Drug Guide. F.A. Davis Company; 2019. [cited 2019 June 20]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Drug-Guide/110113/12/ibrutinib.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - ibrutinib ID - 110113 A1 - Quiring,Courtney, AU - Sanoski,Cynthia A, AU - Vallerand,April Hazard, BT - Davis's Drug Guide UR - https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Drug-Guide/110113/12/ibrutinib PB - F.A. Davis Company ET - 16 DB - Nursing Central DP - Unbound Medicine ER -