Bevacizumab

As one of the world’s best-selling cancer drugs, bevacizumab is quickly becoming a promising option for mesothelioma patients. Also known as the brand name Avastin, bevacizumab inhibits the formation of new blood vessels in tumors, effectively slowing the growth of cancer cells.

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This page features: 11 cited research articles

In early clinical trials, bevacizumab (Avastin) helped some mesothelioma patients live longer when combined with chemotherapy drugs cisplatin and pemetrexed (Alimta).

Bevacizumab improved survival time by 2.7 months in a 2016 phase III clinical trial in France. Patients taking a combination of the three drugs survived an average of 18.8 months, compared to 16.1 months for patients only receiving cisplatin and pemetrexed.

However, bevacizumab’s rare but serious side effects have some researchers questioning its safety. The phase III clinical trial showed that although the side effects were significantly higher for patients taking bevacizumab, they were deemed mostly manageable.

How Does It Work?

Doctors may inject the drug or give it through an intravenous drip, a process that can take a few hours. Patients generally need the drug once every three weeks.

Bevacizumab is sometimes classified as a chemotherapy drug, but it does not fight cancer in the usual way as a cytotoxic agent attacks the disease. Whereas typical chemotherapy attacks rapidly dividing cancer cells, this drug ensures that tumors don’t receive necessities like oxygen and nutrients.

It does this by inhibiting angiogenesis, which is the growth of blood vessels within the tumor. If angiogenesis occurs, mesothelioma cells have a support system within the body and can divide and spread more easily.

But without angiogenesis, cancer cells are starved of vital nutrients and slowly die. When bevacizumab prevents angiogenesis, it stops mesothelioma from spreading and kills cancer cells that are already present.

Bevacizumab Information
Name Avastin
Alternate Names Bevacizumab
Manufacturer Roche/Genetech
Dosage 15 mg/kg every three weeks
Administration Route Intravenous
Active Ingredient Bevacizumab
Drug Class Anti-angiogenic agent
Medical Code J9035, C9257
Related Drug Bevacizumab-awwb (Mvasi)
Interacting Drug Quadramet, deferiphrone, pantiumumab, sunitinib, thalidomide
Medical Studies Cisplatin, Pemetrexed and Bevacizumab for Untreated Malignant Mesothelioma
FDA Warning Gastrointestinal perforation or fistula, arterial thromboembolic events, hypertension, proteinuria, ovarian failure, infusion reactions, posterior reversible encephalopathy syndrome

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In some cancers, including mesothelioma, it is commonly used in combination with other chemotherapy drugs such as a cisplatin-based chemotherapy regimen. Some clinicians have also combined bevacizumab with a second-line chemotherapeutic agent called gemcitabine.

When used in this combined treatment fashion, bevacizumab works to stop angiogenesis while other drugs have a direct cytotoxic effect on the tumor cells.

However, as it is with many multiagent anticancer protocols, oncologist had expressed concern that some treatment combinations with bevacizumab may place some mesothelioma patients at an increased risk of experiencing untoward side effects.

Side Effects

Bevacizumab commonly causes minor side effects such as dizziness, dry mouth, fatigue, heartburn and loss of appetite. In rare cases, it may cause severe side effects such as blood clots in the lungs, hemorrhaging, holes in the stomach and low white blood cell count. These potentially deadly complications are most common when it is used in conjunction with a chemotherapy drug.

A study of clinical trial results revealed that patients treated with bevacizumab and chemotherapy are 1.5 times more likely to die because of treatment complications than patients treated with chemotherapy alone.

Results of Studies

A 2008 study tested the effects of bevacizumab with chemotherapy in 24 mesothelioma patients who previously underwent other treatments with no positive results.

The combination was successful in slowing disease progression in half of patients. Overall, patients lived a median of 5.8 months after being treated with the drug. Researchers reported that it was well-tolerated and warranted further study.

In a case study the following year, a mesothelioma patient underwent treatment with bevacizumab and gemcitabine after other treatments had failed to shrink his tumor or control his symptoms. The combination helped prevent fluid buildup and pain, leading to a better quality of life.

This finding suggests that bevacizumab may aid in palliative, symptom-reducing care in addition to potentially curative, life-extending treatment.

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Last Modified September 24, 2018

Registered Nurse and Patient Advocate

Karen Selby joined Asbestos.com in 2009. She is a registered nurse with a background in oncology and thoracic surgery and was the director of a tissue bank before becoming a Patient Advocate at The Mesothelioma Center. Karen has assisted surgeons with thoracic surgeries such as lung resections, lung transplants, pneumonectomies, pleurectomies and wedge resections. She is also a member of the Academy of Oncology Nurse & Patient Navigators.

Walter Pacheco, Managing Editor at Asbestos.com
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14 Cited Article Sources

  1. CancerHelp UK. (2011). How chemotherapy works.  
    Retrieved from: http://cancerhelp.cancerresearchuk.org/about-cancer/treatment/chemotherapy/about/how-chemotherapy-works
  2. Dowell, J.E. (2010). Cisplatin, Pemetrexed and Bevacizumab for Untreated Malignant Mesothelioma [Clinical Trial].  
    Retrieved from: http://clinicaltrials.gov/ct2/show/NCT00295503
  3. Genentech. (2011). Product Information: Avastin.  
    Retrieved from: http://www.gene.com/gene/products/information/oncology/avastin/
  4. Jackman, D.M. et al (2008). Erlotinib Plus Bevacizumab in Previously Treated Patients with Malignant Pleural Mesothelioma. Cancer 113(4), 808-814.  
    Retrieved from: http://onlinelibrary.wiley.com/doi/10.1002/cncr.23617/pdf
  5. Janne, P.A. (2009). Bevacizumab (Avastin) and Erlotinib (Tarceva) in Previously Treated Mesothelioma [Clinical Trial].  
    Retrieved from: http://clinicaltrials.gov/ct2/show/NCT00137826
  6. Kindler, H.L. (2010).Combination Chemotherapy with or without Bevacizumab in Treating Patients with Malignant Mesothelioma [Clinical Trial].  
    Retrieved from: http://clinicaltrials.gov/ct2/show/NCT00027703
  7. Medline Plus. (2011). Bevacizumab Injection.  
    Retrieved from: http://www.nlm.nih.gov/medlineplus/druginfo/meds/a607001.html
  8. National Cancer Institute. (2011). Cancer Drug Information: Bevacizumab.  
    Retrieved from: http://www.cancer.gov/cancertopics/druginfo/bevacizumab
  9. National Cancer Institute. (2011). Cancer Drug Information: FDA Approval for Bevacizumab.  
    Retrieved from: http://www.cancer.gov/cancertopics/druginfo/fda-bevacizumab#Anchor-Dru-38018
  10. National Cancer Institute. (2006). Understanding Cancer Series: Angiogenesis.  
    Retrieved from: http://www.cancer.gov/cancertopics/understandingcancer/angiogenesis
  11. National Cancer Institute. (2011). When Combined with Chemotherapy, Bevacizumab is Associated with Increased Risk of Death.  
    Retrieved from: http://www.cancer.gov/clinicaltrials/results/summary/2011/bevacizumab-risk2011
  12. Rasul, K.I. & Kerr, D.J. (2009). Malignant peritoneal mesothelioma: is there a new treatment? Rare Tumors, 1(49), 150-152.  
    Retrieved from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2994480/pdf/rt-2009-2-e49.pdf
  13. Robinet, G. &Scherpereel, A. (2011). Mesothelioma Avastin Plus Pemetrexed-cisplatin Study (MAPS) [Clinical Trial].  
    Retrieved from: http://clinicaltrials.gov/ct2/show/NCT00651456
  14. Steenhuysen, J. (2011). Risk of death higher with Avastin than chemo alone.Reuters.   Retrieved from: http://www.reuters.com/article/2011/02/01/us-cancer-avastin-idUSTRE7108L720110201
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