Avastin


Also found in: Dictionary, Wikipedia.

bevacizumab

Avastin

Pharmacologic class: Monoclonal antibody

Therapeutic class: Immunologic agent

Pregnancy risk category C

FDA Box Warning

• Drug may cause GI perforation, in some cases leading to death. Include such perforation in differential diagnosis of patients who experience abdominal pain during therapy. Discontinue permanently in patients with GI perforation.

• Drug may lead to potentially fatal wound dehiscence. Discontinue permanently in patients with wound dehiscence requiring medical intervention.

• Serious and, in some cases fatal, hemoptysis has occurred in patients with non-small-cell lung cancer who received chemotherapy and bevacizumab. Don't give to patients with recent hemoptysis.

Action

Binds to vascular endothelial growth factor, preventing or reducing micro-vascular formation and growth and inhibiting metastatic disease progression

Availability

Solution for injection: 25 mg/ml in 4-ml and 16-ml vials

Indications and dosages

First-line treatment of metastatic cancer of colon or rectum (used in combination with 5-fluorouracil [5-FU]-based chemotherapy)

Adults: 5 mg/kg I.V. infusion q 14 days until disease progression occurs when used with 5-FU, irinotecan, and leucovorin or 10 mg/kg I.V. infusion q 14 days until disease progression occurs when used with 5-FU, oxaliplatin, and leucovorin

Unresectable, locally advanced, recurrent or metastatic nonsquamous, non-small-cell lung cancer

Adults: 15 mg/kg I.V. infusion q 3 weeks

Contraindications

None

Precautions

Use cautiously in:
• hypersensitivity to drug
• cardiovascular disease
• development of immunogenicity
• patients sensitive to infusion reactions
• patients recovering from major surgery, nongastrointestinal fistula
• recent history of hemoptysis (Don't administer drug.)
• patients with proteinuria
• elderly patients
• pregnant or breastfeeding patients
• children.

Administration

• Withdraw necessary amount to obtain required dose, and dilute in 100 ml of 0.9% sodium chloride injection.

Don't mix or administer drug with dextrose solutions.

Don't deliver by I.V. push or bolus.
• Initially, infuse drug over 90 minutes. If patient tolerates infusion well, infuse over 60 minutes the second time; if he continues to tolerate it well, infuse each dose over 30 minutes thereafter.

Withhold dose if hypertension occurs.

Stop infusion if patient develops infusion reaction, hypertensive crisis, severe bleeding, abdominal pain (may signal intra-abdominal abscess or GI perforation), wound dehiscence, or urinary problems.
• Be aware that drug shouldn't be given within 28 days after major surgery and that therapy should be suspended several weeks before elective surgery.

Adverse reactions

CNS: asthenia, dizziness, headache, confusion, syncope, abnormal gait, transient ischemia attack, reversible leukoencephalopathy syndrome, cerebral infarction

CV: hypotension, hypertension, angina, hypertensive crisis, heart failure, deep-vein thrombosis, intraabdominal thrombosis, thromboembolism, MI

EENT: excess lacrimation, visual disturbances, rhinitis, severe epistaxis

GI: nausea, vomiting, diarrhea, constipation, abdominal pain, stomatitis, dyspepsia, flatulence, colitis, dry mouth, anorexia, GI perforation, intra-abdominal abscess, rectal hemorrhage

GU: proteinuria, urinary frequency or urgency, nephrotic syndrome

Hematologic: leukopenia, neutropenia, hemorrhage

Hepatic: bilirubinemia

Metabolic: hypokalemia, hyponatremia

Musculoskeletal: myalgia, back pain

Respiratory: upper respiratory tract infection, dyspnea, massive hemoptysis

Skin: wound-healing complications, dry skin, exfoliative dermatitis, wound dehiscence

Other: abnormal taste, altered voice, pain, weight loss, infusion reaction

Interactions

Drug-drug. Irinotecan: increased concentration of irinotecan metabolite

Drug-diagnostic tests.Leukocytes, potassium, sodium: decreased levels Urine protein: increased level

Patient monitoring

Monitor patient closely and discontinue drug if signs and symptoms of thromboembolism and GI perforation (such as abdominal pain, vomiting, and constipation), serious bleeding, nephrotic syndrome, or hypertensive crisis develops.

Stay alert for and discontinue drug if nongastrointestinal fistula formation, delayed wound healing, or wound dehiscence requiring medical intervention occurs.

Stay alert for and discontinue drug if signs and symptoms of leukoencephalopathy occur (such as headache, seizures, lethargy, confusion, or blindness).
• Assess blood pressure frequently.
• Monitor CBC with differential and urine protein and serum electrolyte levels.

Patient teaching

Tell patient to call prescriber immediately if he experiences dizziness, severe bleeding, stomach pain, or urinary problems or if a wound opens.
• Instruct patient to tell prescriber if he has been exposed to chickenpox or if he has gout, heart disease, viral infection, urinary problems, hepatic disease, or another form of cancer.
• Advise patient to tell prescriber if he has surgery planned; drug may delay wound healing.
• Caution patient not to get immunizations unless prescriber approves.
• Inform female patients of childbearing potential risk of ovarian failure before starting drug.
• Instruct female patient to tell prescriber if she is pregnant, plans to become pregnant, or is breast-feeding.
• As appropriate, review all other significant and life-threatening adverse reactions and interactions, especially those related to the drugs and tests mentioned above.

Avastin

(ā′văs′tn)
n.
A trademark for the drug bevacizumab.

Avastin

a trademark for bevacizumab.

bevacizumab

A humanised monoclonal antibody which inhibits vascular endothelial growth factor (VEGF) which has anti-angiogenic effects, and is used to treat colorectal, lung and kidney cancers, as well as glioblastomas. It is not FDA-approved for managing breast cancer.

Adverse effects
Hypertension, haemorrhage.
References in periodicals archive ?
Preclinical Data Demonstrates Significant Synergistic Anti-Cancer Effects when GEN-1 is combined with Avastin and Doxil
THE ONGOING debate around the use of cancer drug Avastin for patients with age-related macular degeneration (AMD) has taken another twist, as Northern, Eastern and Western (NEW) Devon clinical commissioning group (CCG) halted plans to introduce Avastin as a first line treatment for AMD over safety and regulatory concerns.
The pharmaceutical giants did so "to benefit a much more expensive product, Lucentis, artificially differentiating between the two products," it said, including by steering health services and doctors away from Avastin by describing it as more dangerous.
14 ( ANI ): Researchers have found that adding the chemotherapy drug carboplatin or the angiogenesis inhibitor Avastin to standard chemotherapy drugs resulted in a sharp decline in women suffering from "triple-negative" breast cancer.
A two-year trial found that anti-cancer drug Avastin is as good a treatment for two degenerative eye conditions as a tailor-made product that is nearly 12 times more expensive.
Roche today announced that the US Food and Drug Administration (FDA) has approved a new use of Avastin (bevacizumab) in combination with fluoropyrimidine-based irinotecan or oxaliplatin chemotherapy for people with metastatic colorectal cancer (mCRC).
5 Chambers, has criticised Novartis for starting a Judicial Review in a bid to force the NHS to use Lucentis to treat patients with the condition wet age-related macular degeneration (AMD) rather than the equally effective, but much cheaper, drug Avastin.
Summary: Fake versions of the multibillion-dollar cancer drug Avastin were purchased in Turkey before being traded by middlemen across the Middle East and Europe to the United States, an Egyptian businessman involved said on Tuesday.
Every shipment of Avastin or any other drug entering Egypt needs a Health Ministry license and is then subject to analysis before release, Yousef Ehab, Roche general manager in Egypt, told Reuters.
The US Food and Drug Administration (FDA) has alerted health care professionals that repackaged intravitreal injections of Avastin (bevacizumab) have caused a cluster of serious eye infections in the Miami, Florida.
The story of the use of Avastin for breast cancer treatment is a cautionary tale about how pharmaceutical companies dupe health care providers and consumers into accepting--even demanding--inferior drugs, and bully Federal agencies trying to protect the public.
Women with advanced breast cancer who were treated with Roche Holding AG's (Basel CHE) Avastin were more likely to develop heart failure than other women, according to an analysis released last week that raised more concerns about the already troubled drug.