Abemaciclib
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];
Disclaimer
WikiDoc MAKES NO GUARANTEE OF VALIDITY. WikiDoc is not a professional health care provider, nor is it a suitable replacement for a licensed healthcare provider. WikiDoc is intended to be an educational tool, not a tool for any form of healthcare delivery. The educational content on WikiDoc drug pages is based upon the FDA package insert, National Library of Medicine content and practice guidelines / consensus statements. WikiDoc does not promote the administration of any medication or device that is not consistent with its labeling. Please read our full disclaimer here.
Overview
Abemaciclib is an inhibitor of cyclin-dependent kinases 4 and 6 (CDK4 and CDK6) that is FDA approved for the treatment of adult patients with HR-positive, HER2-negative advanced or metastatic breast cancer with disease progression following endocrine therapy and prior chemotherapy in the metastatic setting. Common adverse reactions include diarrhea, neutropenia, nausea, abdominal pain, infections, fatigue, anemia, leukopenia, decreased appetite, vomiting, headache, alopecia, and thrombocytopenia..
Adult Indications and Dosage
FDA-Labeled Indications and Dosage (Adult)
50 mg tablets
- oval beige tablet with “Lilly” debossed on one side and “50” on the other side.
100 mg tablets
- oval white to practically white tablet with “Lilly” debossed on one side and “100” on the other side.
150 mg tablets
- oval yellow tablet with “Lilly” debossed on one side and “150” on the other side.
200 mg tablets
- oval beige tablet with “Lilly” debossed on one side and “200” on the other side.
Off-Label Use and Dosage (Adult)
Guideline-Supported Use
There is limited information regarding Abemaciclib Off-Label Guideline-Supported Use and Dosage (Adults) in the drug label.
Non–Guideline-Supported Use
There is limited information regarding Abemaciclib Off-Label Non-Guideline-Supported Use and Dosage (Adults) in the drug label.
Pediatric Indications and Dosage
FDA-Labeled Indications and Dosage (Pediatric)
There is limited information regarding Abemaciclib FDA-Labeled Indications and Dosage (Pediatric) in the drug label.
Off-Label Use and Dosage (Pediatric)
Guideline-Supported Use
There is limited information regarding Abemaciclib Off-Label Guideline-Supported Use and Dosage (Pediatrics) in the drug label.
Non–Guideline-Supported Use
There is limited information regarding Abemaciclib Off-Label Guideline-Supported Use and Dosage (Pediatrics) in the drug label.
Contraindications
- None
Warnings
Diarrhea
- Diarrhea occurred in 81% of patients receiving VERZENIO plus an aromatase inhibitor in MONARCH 3, 86% of patients receiving VERZENIO plus fulvestrant in MONARCH 2, and 90% of patients receiving VERZENIO alone in MONARCH 1. Grade 3 diarrhea occurred in 9% of patients receiving VERZENIO plus an aromatase inhibitor in MONARCH 3, 13% of patients receiving VERZENIO plus fulvestrant in MONARCH 2, and in 20% of patients receiving VERZENIO alone in MONARCH 1. Episodes of diarrhea have been associated with dehydration and infection.
- Instruct patients that at the first sign of loose stools, they should start antidiarrheal therapy such as loperamide, increase oral fluids, and notify their healthcare provider for further instructions and appropriate follow up. For Grade 3 or 4 diarrhea, or diarrhea that requires hospitalization, discontinue VERZENIO until toxicity resolves to ≤Grade 1, and then resume VERZENIO at the next lower dose.
Neutropenia
- Neutropenia occurred in 41% of patients receiving VERZENIO plus an aromatase inhibitor in MONARCH 3, 46% of patients receiving VERZENIO plus fulvestrant in MONARCH 2, and 37% of patients receiving VERZENIO alone in MONARCH 1. A Grade ≥3 decrease in neutrophil count (based on laboratory findings) occurred in 22% of patients receiving VERZENIO plus an aromatase inhibitor in MONARCH 3, 32% of patients receiving VERZENIO plus fulvestrant in MONARCH 2, and in 27% of patients receiving VERZENIO in MONARCH 1. In MONARCH 3, the median time to first episode of Grade ≥3 neutropenia was 33 days, and in MONARCH 2 and MONARCH 1 was 29 days. In MONARCH 3, median duration of Grade ≥3 neutropenia was 11 days, and for MONARCH 2 and MONARCH 1 was 15 days.
- Monitor complete blood counts prior to the start of VERZENIO therapy, every 2 weeks for the first 2 months, monthly for the next 2 months, and as clinically indicated. Dose interruption, dose reduction, or delay in starting treatment cycles is recommended for patients who develop Grade 3 or 4 neutropenia.
- Febrile neutropenia has been reported in <1% of patients exposed to VERZENIO in the MONARCH studies. Two deaths due to neutropenic sepsis were observed in MONARCH 2. Inform patients to promptly report any episodes of fever to their healthcare provider.
Conidition 3
(Description)
Adverse Reactions
Clinical Trials Experience
Central Nervous System
- (list/description of adverse reactions)
Cardiovascular
- (list/description of adverse reactions)
Respiratory
- (list/description of adverse reactions)
Gastrointestinal
- (list/description of adverse reactions)
Hypersensitive Reactions
- (list/description of adverse reactions)
Miscellaneous
- (list/description of adverse reactions)
Condition 2
Central Nervous System
- (list/description of adverse reactions)
Cardiovascular
- (list/description of adverse reactions)
Respiratory
- (list/description of adverse reactions)
Gastrointestinal
- (list/description of adverse reactions)
Hypersensitive Reactions
- (list/description of adverse reactions)
Miscellaneous
- (list/description of adverse reactions)
Postmarketing Experience
(Description)
Drug Interactions
- Drug 1
- Drug 2
- Drug 3
- Drug 4
- Drug 5
Drug 1
(Description)
Drug 2
(Description)
Drug 3
(Description)
Drug 4
(Description)
Drug 5
(Description)
Use in Specific Populations
Pregnancy
Pregnancy Category (FDA):
(Description)
Pregnancy Category (AUS):
(Description)
Labor and Delivery
(Description)
Nursing Mothers
(Description)
Pediatric Use
(Description)
Geriatic Use
(Description)
Gender
(Description)
Race
(Description)
Renal Impairment
(Description)
Hepatic Impairment
(Description)
Females of Reproductive Potential and Males
(Description)
Immunocompromised Patients
(Description)
Others
(Description)
Administration and Monitoring
Administration
(Oral/Intravenous/etc)
Monitoring
Condition 1
(Description regarding monitoring, from Warnings section)
Condition 2
(Description regarding monitoring, from Warnings section)
Condition 3
(Description regarding monitoring, from Warnings section)
IV Compatibility
There is limited information regarding the compatibility of Abemaciclib and IV administrations.
Overdosage
Acute Overdose
Signs and Symptoms
(Description)
Management
(Description)
Chronic Overdose
Signs and Symptoms
(Description)
Management
(Description)
Pharmacology
Abemaciclib
| |
| Systematic (IUPAC) name | |
| ? | |
| Identifiers | |
| CAS number | ? |
| ATC code | ? |
| PubChem | ? |
| Chemical data | |
| Formula | ? |
| Mol. mass | ? |
| Pharmacokinetic data | |
| Bioavailability | ? |
| Metabolism | ? |
| Half life | ? |
| Excretion | ? |
| Therapeutic considerations | |
| Pregnancy cat. |
? |
| Legal status | |
| Routes | ? |
Mechanism of Action
Abemaciclib is an inhibitor of cyclin-dependent kinases 4 and 6 (CDK4 and CDK6). These kinases are activated upon binding to D-cyclins. In estrogen receptor-positive (ER+) breast cancer cell lines, cyclin D1 and CDK4/6 promote phosphorylation of the retinoblastoma protein (Rb), cell cycle progression, and cell proliferation. In vitro, continuous exposure to abemaciclib inhibited Rb phosphorylation and blocked progression from G1 into S phase of the cell cycle, resulting in senescence and apoptosis. In breast cancer xenograft models, abemaciclib dosed daily without interruption as a single agent or in combination with antiestrogens resulted in reduction of tumor size.
Structure
Abemaciclib is a kinase inhibitor for oral administration. It is a white to yellow powder with the empirical formula C27H32F2N8 and a molecular weight 506.59.
The chemical name for abemaciclib is 2-Pyrimidinamine, N-[5-[(4-ethyl-1-piperazinyl)methyl]-2-pyridinyl]-5-fluoro-4-[4-fluoro-2-methyl-1-(1-methylethyl)-1H-benzimidazol-6-yl]-. Abemaciclib has the following structure:
Pharmacodynamics
(Description)
Pharmacokinetics
(Description)
Nonclinical Toxicology
(Description)
Clinical Studies
Condition 1
(Description)
Condition 2
(Description)
Condition 3
(Description)
How Supplied
(Description)
Storage
There is limited information regarding Abemaciclib Storage in the drug label.
Images
Drug Images
{{#ask: Page Name::Abemaciclib |?Pill Name |?Drug Name |?Pill Ingred |?Pill Imprint |?Pill Dosage |?Pill Color |?Pill Shape |?Pill Size (mm) |?Pill Scoring |?NDC |?Drug Author |format=template |template=DrugPageImages |mainlabel=- |sort=Pill Name }}
Package and Label Display Panel
{{#ask: Label Page::Abemaciclib |?Label Name |format=template |template=DrugLabelImages |mainlabel=- |sort=Label Page }}
Patient Counseling Information
(Patient Counseling Information)
Precautions with Alcohol
Alcohol-Abemaciclib interaction has not been established. Talk to your doctor regarding the effects of taking alcohol with this medication.
Brand Names
There is limited information regarding Abemaciclib Brand Names in the drug label.
Look-Alike Drug Names
- (Paired Confused Name 1a) — (Paired Confused Name 1b)
- (Paired Confused Name 2a) — (Paired Confused Name 2b)
- (Paired Confused Name 3a) — (Paired Confused Name 3b)
Drug Shortage Status
Drug Shortage
Price
References
The contents of this FDA label are provided by the National Library of Medicine.