Biologics and cancer in children article. | Arthritis Information

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I'm not trying to scare anyone but saw this posted on a local website. Thought I would share.

          
Certain Arthritis, Crohn's Drugs May Raise Kids' Cancer Risk: FDA

Agency strengthens 'black box' warning on medicines such as Enbrel, Remicade
By Steven Reinberg
HealthDay Reporter

TUESDAY, Aug. 4 (HealthDay News) -- Drugs widely used to fight rheumatoid arthritis, Crohn's disease and other inflammatory disorders must now carry an updated "black box" warning label cautioning patients and doctors that the medicines may boost cancer risk in children and adolescents, the U.S. Food and Drug Administration announced Tuesday.
The drugs, called tumor necrosis factor (TNF) blockers, work by interrupting a protein that causes inflammation and damage to bones, cartilage and other tissue. They include Remicade (infliximab), Enbrel (etanercept), Humira (adalimumab), Cimzia (certolizumab pegol) and Simponi (golimumab).
"FDA announced that it has completed its analysis of TNF blockers and has concluded that there is an increased risk of lymphoma and other cancers associated with the use of these drugs in children and adolescents," according to FDA spokeswomen Crystal Rice.
"This new safety information is now being added to the boxed warning for these products," she said.
TNF blockers already carry FDA-mandated warning labels for other potential safety issues, including fungal infections. Tuesday's announcement follows on the agency's move last year to review several dozen reports of children who developed cancer while taking the medications. That investigation started in June 2008. The analysis took into account a number of reports of cancers in children treated with these drugs. The malignancies tended to arise about 30 months after starting on the medications.
About half of the cancers were lymphomas and some of the children died, according to the FDA.
The issue gained more prominence in July 2008 when doctors reporting in the New England Journal of Medicine outlined the case of a woman with Crohn's disease who took a TNF blocker and then developed lung cancer. When she ceased using the drug, her cancer disappeared.
The agency is working with manufacturers to find new ways to define the risk of cancer in children and adolescents who use these drugs.
Dr. Patience White, chief public health officer at the Arthritis Foundation, said the risks and benefits of these drugs need to be weighed and the final decision whether to take them or not must be an individual one.
However, "it's good to have this information out there," White said. "It gives people with arthritis an opportunity to go to their doctor and talk about the risk/benefits."
People with these inflammatory illnesses are already at an increased risk for cancer, White noted.
"Then you are giving a drug that probably increases the risk as well. But are both of those worth not taking the drug, and being disabled? That's the discussion," she said.
The hard part for patients will be to balance these risks and benefits, White added. "The risks of the side effects are often very small, but the chance that a person with juvenile arthritis will be disabled and deformed is very high if they don't take therapy," she said. "People often focus on risks and forget the benefits."
Deciding whether or not to take these drugs should be based on the type of disease and a family history of cancer, White said. "It really matters to have a discussion about this," she said. "There isn't really one risk/benefit profile that fits for everybody."
According to the FDA's Rice, patients taking these drugs should:
Be aware that taking TNF blockers may increase the risk of developing lymphoma, leukemia, and other cancers.
Be aware that taking TNF blockers may increase the risk of developing psoriasis and may worsen pre-existing psoriasis.
Review the accompanying medication guide.
Do not stop or change medicines that have been prescribed without first talking with a knowledgeable health care professional.
Pay close attention for any signs or symptoms of cancer such as unexplained weight loss or fatigue, swollen lymph nodes in the neck, underarms or groin, or easy bruising or bleeding. Promptly discuss any signs and symptoms with a health care professional.
More information
For more information on TNF blockers and cancer risk, visit the FDA.
SOURCES: Crystal Rice, spokeswoman, U.S. Food and Drug Administration; Patience White, M.D., chief public health officer, Arthritis Foundation; Aug. 4, 2009, statement, U.S. Food and Drug AdministraDr. Patience White, chief public health officer at the Arthritis Foundation, said the risks and benefits of these drugs need to be weighed and the final decision whether to take them or not must be an individual one.
However, "it's good to have this information out there," White said. "It gives people with arthritis an opportunity to go to their doctor and talk about the risk/benefits."
People with these inflammatory illnesses are already at an increased risk for cancer, White noted.
"Then you are giving a drug that probably increases the risk as well. But are both of those worth not taking the drug, and being disabled? That's the discussion," she said.
I have friends who take enbrel to battle their psoriasis and their psoratic arthritis....   how can it exacerbate on one hand...and all but eliminate on the other?Babs, it's the individual.  I'm one of the small percentage of people with PsA and no skin plaques until I started TNFs  I developed a small area on my leg after I started Enbrel but it has since gone away and not come back and I consider myself extremely fortunate.  Two years later I developed a fungal infection from TNFs and it was quite severe until I finally got a proper diagnosis and started the right medication and it has completely cleared.  I know why the fungal infection started but the reason for the skin psoriasis after starting TNFs is perplexing and I haven't found any answers.  Lindy LinB2009-08-05 17:33:36Question Lindy.....

Did you get the psoriasis after taking enbrel and have it leave you while still taking enbrel?
 
From my perspective this is a well-balanced presentation and I do not think that many people will be particularly surprised at the additional black box warning. There have been rumours that it was coming for several months.

The single statement that stands out for me is, "People often focus on risks and forget the benefits."

Lymphoma Study Results

  • Medium rheumatoid arthritis activity correlated with an 8-fold increase in risk of lymphoma compared to low rheumatoid arthritis activity.
  • High rheumatoid arthritis activity was associated with a 70-fold increase in lymphoma risk.
  • Increased risk of lymphoma was associated with severe joint damage in the hands, feet, and knees noted in the medical record of the patient within the last year prior to be diagnosed with lymphoma.
  • Over 70 percent of all patients in the study (lymphoma and lymphoma-free controls) had taken DMARDs, including methotrexate.
  • Study results showed no increased lymphoma risk connected to DMARDs, NSAIDs, aspirin, or steroids.
  • Lymphoma risk was low among patients who received frequent steroid injections into their joints.
  • Of the medical treatments analyzed in the study, only Imuran (azathioprine), which is no longer a commonly used DMARD for rheumatoid arthritis, showed an association to increased lymphoma risk.

    Lymphoma Study - Conclusion

    Researchers concluded that patients with very severe rheumatoid arthritis who have prolonged, active inflammation are at the highest risk for developing lymphoma. Chronic inflammation and not the anti-inflammatory treatments appear to be connected to lymphoma risk in rheumatoid arthritis patients. Early, aggressive treatment to control inflammation is obviously important.

  • http://arthritis.about.com/od/rheumatoidarthritis/a/lymphoma.htm

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