The U.S. Food and Drug Administration today approved Afinitor oral tablets (everolimus) for the treatment of patients with advanced kidney cancer whose disease has progressed after treatment with other cancer therapies.
Renal cell cancer, the most common type of kidney cancer, originates in the lining of the small tubules in the kidney that filter waste products from the blood. The cancer is resistant to such standard treatments as radiation therapy and chemotherapy, and the initial treatment for most patients is surgical removal of the kidney. If the cancer is confined to the kidney, the five-year survival rate is 60 to 70 percent; but the survival rate is considerably lower after the cancer has spread to other parts of the body.
"Afinitor provides an option for patients with advanced renal cell cancer after failure of treatment with the cancer therapies sunitinib or sorafenib," said Robert Justice, M.D., director, Division of Drug Oncology Products in the FDA's Center for Drug Evaluation and Research. "Targeted cancer therapies like Afinitor have increased the number of months patients can live without the tumor progressing."
Afinitor belongs to a class of drugs called kinase inhibitors, which interfere with cell communication, preventing tumor growth. The drug is intended for those patients with advanced renal cell cancer who have already tried another kinase inhibitor, Sutent (sunitinib) or Nexavar (sorafenib).
While Sutent and Nexavar are multiple kinase inhibitors (acting on a number of cellular targets), Afinitor works by blocking a specific protein known as the mammalian target of rapamycin or mTOR. The protein blocking action disrupts the growth, division and metabolism of cancer cells.
A clinical trial studying the safety and effectiveness of Afinitor was discontinued after an interim analysis showed that, in patients receiving the drug, the growth or spread of the tumor was delayed when compared to patients who did not receive the drug. In addition, disease progression was delayed approximately five months in half of the patients who received Afinitor. In contrast, disease progression was delayed two months in patients who did not receive the drug.
The most frequent adverse reactions in the trial (occurring in at least 20 percent of patients) included inflammation in the mouth, loss of strength, diarrhea, poor appetite, fluid buildup in the extremities, shortness of breath, coughing, nausea, vomiting, rash, and fever. Laboratory tests of blood samples determined that at least half of all patients experienced anemia, low white blood counts, high cholesterol and high triglycerides and high blood sugar.
Afinitor is manufactured by Novartis International AG of Basel, Switzerland. Sutent is manufactured by Pfizer Inc. of New York. Nexavar is manufactured by Bayer HealthCare AG, Leverkusen, Germany.
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Tuesday, March 31, 2009
FDA Approves Drug for an Advanced Form of Kidney Cancer
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Tuesday, December 16, 2008
FDA Requires Warnings about Risk of Suicidal Thoughts and Behavior for Antiepileptic Medications
The U.S. Food and Drug Administration today announced it will require the manufacturers of antiepileptic drugs to add to these products' prescribing information, or labeling, a warning that their use increases risk of suicidal thoughts and behaviors (suicidality). The action includes all antiepileptic drugs including those used to treat psychiatric disorders, migraine headaches and other conditions, as well as epilepsy.
The FDA is also requiring the manufacturers to submit for each of these products a Risk Evaluation and Mitigation Strategy, including a Medication Guide for patients. Medication Guides are manufacturer-developed handouts that are given to patients, their families and caregivers when a medicine is dispensed. The guides will contain FDA-approved information about the risks of suicidal thoughts and behaviors associated with the class of antiepileptic medications.
"Patients being treated with antiepileptic drugs for any indication should be monitored for the emergence or worsening of depression, suicidal thoughts or behavior, or any unusual changes in mood or behavior,” said Russell Katz, M.D., director of the Division of Neurology Products in the FDA's Center for Drug Evaluation and Research. “ Patients who are currently taking an antiepileptic medicine should not make any treatment changes without talking to their health care professional.”
The FDA today also disseminated information to the public about the risks associated with antiepileptic medications by issuing a public health advisory and an information alert to health care professionals. Health care professionals should notify patients, their families, and caregivers of the potential for an increase in the risk of suicidal thoughts or behaviors so that patients may be closely observed.
The FDA's actions are based on the agency's review of 199 clinical trials of 11 antiepileptic drugs which showed that patients receiving antiepileptic drugs had almost twice the risk of suicidal behavior or thoughts (0.43 percent) compared to patients receiving a placebo (0.24 percent). This difference was about one additional case of suicidal thoughts or behaviors for every 500 patients treated with antiepileptic drugs instead of placebo.
Four of the patients who were randomized to receive one of the antiepileptic drugs committed suicide, whereas none of the patients in the placebo group did. Results were insufficient for any conclusion to be drawn about the drugs' effects on completed suicides. The biological reasons for the increase in the risk for suicidal thoughts and behavior observed in patients being treated with antiepileptic drugs are unknown.
The FDA alerted health care professionals in January 2008 that clinical trials of drugs to treat epilepsy showed increased risk of suicidal thoughts and actions. In July 2008, the FDA held a public meeting to discuss the data with a committee of independent advisors. At that meeting the committee agreed with the FDA's findings that there is an increased risk of suicidality with the analyzed antiepileptic drugs, and that appropriate warnings should extend to the whole class of medications. The panel also considered whether the drugs should be labeled with a boxed warning, the FDA's strongest warning. The advisers recommended against a boxed warning and instead recommended that a warning of a different type be added to the labeling and that a Medication Guide be developed.
Acting under the authorities of the Food and Drug Administration Amendments Act of 2007 (FDAAA), the FDA is requiring manufacturers of antiepileptic drugs to submit to the agency new labeling within 30 days, or provide a reason why they do not believe such labeling changes are necessary. In cases of non-compliance, FDAAA provides strict timelines for resolving the issue and allows the agency to initiate an enforcement action if necessary.
The following antiepileptic drugs are required to add warnings about the risk of suicidality:
Carbamazepine (marketed as Carbatrol, Equetro, Tegretol, Tegretol XR)
Clonazepam (marketed as Klonopin)
Clorazepate (marketed as Tranxene)
Divalproex sodium (marketed as Depakote, Depakote ER, Depakene)
Ethosuximide (marketed as Zarontin)
Ethotoin (marketed as Peganone)
Felbamate (marketed as Felbatol)
Gabapentin (marketed as Neurontin)
Lamotrigine (marketed as Lamictal)
Lacosamide (marketed as Vimpat)
Levetiracetam (marketed as Keppra)
Mephenytoin (marketed as Mesantoin)
Methosuximide (marketed as Celontin)
Oxcarbazepine (marketed as Trileptal) Phenytoin (marketed as Dilantin Suspension)
Pregabalin (marketed as Lyrica)
Primidone (marketed as Mysoline)
Tiagabine (marketed as Gabitril)
Topiramate (marketed as Topamax)
Trimethadione (marketed as Tridione)
Zonisamide (marketed as Zonegran)
Some of these medications are also available as generics.
Health care professionals and consumers may report serious adverse events or product quality problems with the use of this product to the FDA's MedWatch Adverse Event Reporting program either online, by regular mail, fax or phone.
-- Online : www.fda.gov/MedWatch/report.htm
-- Regular Mail : use postage-paid FDA form 3500 available at: www.fda.gov/MedWatch/getforms.htm
and mail to MedWatch, 5600 Fishers Lane , Rockville , MD 20852-9787
-- Fax: (800) FDA-0178
-- Phone: (800) FDA-1088
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Monday, September 15, 2008
Keppra XR(TM) Approved for Sale in US by FDA
Epilepsy is a chronic neurological disorder affecting approximately three million people in the US-making it more common than multiple sclerosis and Parkinson's disease combined. It is caused by abnormal, excessive electrical discharges of the nerve cells, or neurons, in the brain. Epilepsy is characterized by a tendency to have recurrent seizures and defined by two or more unprovoked seizures. There are many different seizure types and epileptic syndromes. Forty percent of patients taking only one AED continue to experience seizures, and approximately 30% of patients taking adjunctive therapy continue to experience seizures. This highlights the ongoing need for the development of new AEDs. For more information about epilepsy, visit www.epilepsyfoundation.org, www.epilepsy.com, or www.epilepsyadvocate.com.
PRNewswire --- UCB announced today that the U.S. Food and Drug Administration (FDA) has approved Keppra XR(TM) (levetiracetam extended-release tablets) for use as an add-on to other antiepileptic treatments for people with partial-onset seizures who are 16 years of age and older. Keppra XR(TM) is expected to be available in U.S. pharmacies at the end of September 2008.
The goal of therapy with antiepileptic drugs (AED) is freedom from seizures and minimal side effects. While many people with epilepsy are successfully treated with one or more of the currently available antiepileptic drugs, a significant percentage still live with uncontrolled seizures or intolerable side effects.
"With solid clinical trial data supporting Keppra XR(TM) efficacy and tolerability, this once-daily antiepileptic drug can play an important role in treating people with epilepsy," said lead investigator Dr. Jukka Peltola, Department of Neurology, Tampere University Hospital, Finland. "We found in the clinical trial that Keppra XR(TM) provided significant partial onset seizure control in once-daily dosing when added to other antiepileptic drugs and that it was generally well-tolerated."
Keppra XR(TM) extended-release tablets are indicated as adjunctive therapy in the treatment of partial onset seizures in patients 16 years of age and older with epilepsy.
Keppra XR(TM) causes somnolence, dizziness, and behavioral abnormalities. The most common adverse reactions observed with Keppra XR(TM) in combination with other AEDs were somnolence and irritability.
The adverse reactions that may be seen in patients receiving Keppra XR(TM) are expected to be similar to those seen in patients receiving immediate- release Keppra(R) tablets.
Keppra(R) immediate-release tablets cause somnolence and fatigue, coordination difficulties, and behavioral abnormalities (e.g., psychotic symptoms, suicidal ideation, and other abnormalities), as well as hematological abnormalities. In adults experiencing partial onset seizures, the most common adverse reactions observed with Keppra(R) in combination with other AEDs were somnolence, asthenia, infection and dizziness.
Keppra XR(TM) should be gradually withdrawn to minimize the potential of increased seizure frequency.
Dosing must be individualized according to the patient's renal function status. The dosage should be reduced in patients with impaired renal function receiving Keppra XR. In patients with end stage renal disease on dialysis, it is recommended that immediate-release Keppra(R) be used instead of Keppra XR(TM).
For full prescribing information, please see www.KeppraXR.com.
In order to ensure patient access to this valuable medication in the U.S., UCB is initiating a co-pay support program. For more information, contact U.S. UCB Medical Information at 1-866-822-0068 (press 9).
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