Navigation Links
Anti-growth factor drugs raise hope and concern for treatment of children's eye diseases
Date:8/3/2009

Philadelphia, PA, 3 August 2009 A new class of antibody drugs may provide a powerful new tool for the treatment of eye diseases in children, but specialists need to be alert for the possibility of serious side effects, according to an editorial in the August Journal of AAPOS (American Association for Pediatric Ophthalmology and Strabismus), published by Elsevier.

Dr. Robert L. Avery of Santa Barbara, Calif., discusses issues related to the use of antibodies against vascular endothelial growth factor (VEGF) in pediatric ophthalmology. The two anti-VEGF antibodies available so farbevacizumab and ranibizumabhave been rapidly adopted for the treatment of age-related macular degeneration (AMD), the leading cause of vision loss in older adults. The antibodies work by blocking the development of new blood vessels (angiogenesis).

Anti-VEGF antibodies were originally approved for use in cancer treatment, and there have been some safety concerns, including a possible increase in stroke risk. However, at the much smaller doses used in eye diseases, the two antibodies appear to be safe. However, in discussing the growing use of anti-VEGF antibodies in children, Dr. Avery sounds a cautious note. One study, also published in the August Journal of AAPOS, found that bevacizumab treatment in one eye of a child with eye disease also improved the condition in the other eye. This, along with other limited reports, suggests that the antibodies might leave the eye and enter the bloodstream, where they could potentially lead to side effects and complications.

Side effects are a special concern in children, who might be at higher risk because of their smaller size. Used in premature infants with an eye disease called retinopathy of prematurity, anti-VEGF antibodies could have the potential for harm to still developing organs.

These issues are particularly difficult because the anti-VEGF antibodies are not approved for use in children. Because of the urgent need for treatment of serious but relatively rare eye diseases in children, "off-label" use of drugsfor purposes other than those which the drugs are approvedis common in pediatric ophthalmology.

A study is being performed to compare the two anti-VEGF antibodies in adults with AMD. Because ranibizumab stays in the body for a shorter time than bevacizumab, it might be a better choice for use in treating eye diseases. However, the upcoming study may not be large enough to detect small differences in side effects, and in any case the results may not be applicable to children.

Meanwhile, Dr. Avery urges pediatric ophthalmologists using anti-VEGF antibodies to watch carefully for any possible side effects in their young patients. "Bevacizumab and ranibizumab have provided us with a great opportunity to improve the treatment of a variety of retinal diseases," he concludes. "Hopefully, the dramatic improvements in outcomes we have seen in adults will extend into pediatric diseases, but further study is clearly needed to assess the safety and efficacy of these drugs in this population."


'/>"/>

Contact: Jayne Dawkins
ja.dawkins@elsevier.com
215-239-3674
Elsevier
Source:Eurekalert

Related medicine news :

1. Conventional prognostic factors fail to explain better prostate cancer survival in most Asian men
2. Study, meta-analysis examine factors associated with death from heatstroke
3. New Alzheimers findings: High stress and genetic risk factor lead to increased memory decline
4. Discovery suggests location of genes for breast density, a strong risk factor for breast cancer
5. PA Health Department Survey Shows Impact of Income, Gender, Other Factors on Health and Access to Health Care
6. Researchers genetically engineer micro-organisms into tiny factories
7. Study Downgrades Gene as Heart Risk Factor
8. Severe heart defect likely caused by genetic factors
9. A Chinese medicine compound has satisfactory anti-cancer effects on hepatocellular carcinoma
10. Aggressively Treating Cardiac Risk Factors May Reverse Ischemia
11. New peptide communication factor enabling bacteria to talk to each other discovered
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... ... 2016 , ... Conventional wisdom preaches the benefits of moderation, whether it’s a ... the bar too high can result in disappointment, perhaps even self-loathing. However, those who ... , Research from PsychTests.com reveals that behind the tendency to set ...
(Date:6/24/2016)... Marne, Michigan (PRWEB) , ... June 24, 2016 , ... ... To deal with these feelings, many turn to unhealthy avenues, such as drug or ... Center of Marne, Michigan, has released tools for healthy coping following a traumatic event. ...
(Date:6/24/2016)... ... ... crisis. Her son James, eight, was out of control. Prone to extreme mood shifts and ... him, he couldn’t control his emotions,” remembers Marcy. “If there was a knife on ... say he was going to kill them. If we were driving on the freeway, ...
(Date:6/24/2016)... ... ... Global law firm Greenberg Traurig, P.A. announced that 20 Florida attorneys are ... for this recognition are considered among the top 2 percent of lawyers practicing within ... of this year’s Legal Elite Hall of Fame: Miami Shareholders Mark D. Bloom, ...
(Date:6/24/2016)... Diego, CA (PRWEB) , ... June 24, 2016 , ... ... with the American Cancer Society and the Road To Recovery® program to drive cancer ... to seniors and other adults to ensure the highest quality of life and ongoing ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... , June 24, 2016 ... has announced the addition of the " Global ... This report ... provides an updated review, including its applications in various ... total market, which includes three main industries: pharmaceutical and ...
(Date:6/24/2016)... SAN CLEMENTE, Calif. , June 24, 2016  American Respiratory ... testing company, is now able to perform sophisticated lung assessments in ... Medical Technologies , Inc. Patients are no longer ... to ndd,s EasyOne PRO ® , ARL patients like Jeanne R. ... testing done in the comfort of her own home. ...
(Date:6/24/2016)... Belgium , June 24, 2016 /PRNewswire/ ... announced the appointment of Dr. Edward Futcher ... a Non-Executive Director, effective June 23, 2016.Dr. Futcher ... and Nominations and Governance Committees.  As a non-executive ... provide independent expertise and strategic counsel to VolitionRx ...
Breaking Medicine Technology: