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Zostavax® is a vaccine that can raise the body's immunity to varicella zoster virus. The varicella virus causes chickenpox in children. When this virus become active again during adulthood, it can cause a condition called herpes zoster, or shingles. Zostavax® cannot treat shingles or the pain that is caused by shingles. Zostavax® can also be used for other purposes not listed on this page. To find out more about Zostavax®, talk to your doctor.
If you experience any of the following: an allergic reaction, hives, difficulty breathing, swelling of your face, lips, tongue, or throat, seek immediate medical attention.
If you experience any of the following side effects: fever, chills, sore throat, weakness, flu symptoms, breathing problems, and severe or painful skin rash, you should talk to your doctor as soon as possible.
Some other less serious side effects that you may experience while taking this prescription medication that are more likely to occur, are: pain, redness, bruising, or swelling where the shot was given, diarrhea, headache, mild skin rash.
You may experience other side effects that are not listed here. Side effects are difficult to predict. Some side effects are normal, while other side effects are not. Always discuss any side effects you are experiencing while taking any prescription medication, including Zostavax®, with your doctor.
ZOSTAVAX is the first and only medical option for preventing shingles, a painful disease that can occur in anyone who has had chickenpox
WHITEHOUSE STATION, N.J., May 26, 2006 - The U.S. Food and Drug Administration (FDA) has approved Merck's new vaccine ZOSTAVAX® [Zoster Vaccine Live (Oka/Merck)] for prevention of herpes zoster (shingles) in individuals 60 years of age and older.
Shingles is a frequently painful disease marked by a blistering rash. Caused by the reactivation of the virus that causes chickenpox, shingles can lead to severe complications including long-term nerve pain (postherpetic neuralgia), which can last for months or even years. ZOSTAVAX is not a treatment for shingles or postherpetic neuralgia. ZOSTAVAX is given as a single dose by injection.
"ZOSTAVAX is the first and only medical option approved for the prevention of shingles," said William Schaffner, M.D., professor of preventive medicine, Vanderbilt University School of Medicine, Nashville . "Approval of a vaccine against shingles represents a major public health advance for people 60 and older."
Anyone who has been infected with chickenpox -- that's more than 90 percent of adults in the United States -- is at risk for developing shingles. The incidence and severity of shingles, as well as the frequency and severity of its complications, increase with age. About 40 to 50 percent of the estimated 1 million cases of shingles that occur in the United States each year occur in people age 60 and older. Shingles can be unpredictable and can occur without warning at any time.
"This vaccine is clinically important because it can prevent a disease that may cause pain in some patients," said Ann Arvin, M.D., professor of pediatrics, infectious diseases and microbiology and immunology, Stanford University School of Medicine, who studied the vaccine. "ZOSTAVAX is unique because in contrast to other vaccines that help prevent a primary infection, ZOSTAVAX helps prevent reactivation of a virus that's already inside the body."
Shingles usually starts as an unusual or painful sensation on one side of the body or face, followed by a blistering rash. Pain from shingles can be mild to severe and may occur just prior to the development of the rash, during the eruption of the rash and as long-term nerve pain (postherpetic neuralgia). Postherpetic neuralgia has been described as tender, burning, throbbing, stabbing, shooting and/or sharp pain. Other complications, such as scarring, allodynia (pain from an innocuous stimulus such as the touch of soft clothing or a light breeze), pneumonia, visual impairment and hearing loss also can occur as the result of shingles. Treating shingles and postherpetic neuralgia can be difficult, often requiring a multifaceted approach.
ZOSTAVAX is contraindicated in persons with a history of anaphylactic/anaphylactoid reaction to gelatin, neomycin, or any other component of the vaccine; with a history of primary or acquired immunodeficiency states including leukemia, lymphomas of any type, or other malignant neoplasms affecting the bone marrow or lymphatic system; with AIDS or other clinical manifestations of infection with human immunodeficiency viruses; and with active untreated tuberculosis. ZOSTAVAX is also contraindicated in persons on immunosuppressive therapy including high-dose corticosteroids and in women who are or may be pregnant.
Vaccination with a live, attenuated vaccine, such as ZOSTAVAX, may result in a more extensive vaccine-associated rash or disseminated disease in individuals who are immunosuppressed. Safety and efficacy of ZOSTAVAX have not been evaluated in individuals on immunosuppressive therapy, nor in individuals receiving daily topical or inhaled corticosteroids or low-dose oral corticosteroids. The use of ZOSTAVAX in individuals with a previous history of shingles has not been studied.
Studies of ZOSTAVAX Included More Than 40,000 People
The approval of ZOSTAVAX is based on studies of more than 40,000 people, more than 21,000 of whom received active vaccine. The efficacy and safety of a single dose of ZOSTAVAX was evaluated in the largest of these studies, the landmark Shingles Prevention Study (SPS) of 38,546 men and women age 60 and over who had no previous history of shingles. This randomized, double-blind, placebo-controlled study was a Department of Veterans Affairs study conducted in collaboration with the National Institute of Allergy and Infectious Diseases at the National Institutes of Health and Merck at 22 U.S. research sites.
In the study, participants were randomized to groups given either ZOSTAVAX (N=19,270) or a placebo (N=19,276) and followed for the development of shingles for a median duration of 3.1 years. All subjects with clinically diagnosed shingles were offered antiviral treatment, as well as standard-of-care treatment for pain, as necessary.
ZOSTAVAX significantly reduced the risk of developing shingles compared with placebo by 51 percent (315 cases [5.4 cases per 1,000 person-years] vs. 642 cases [11.1 cases per 1,000 person-years], respectively; p<0.001) in the SPS. Efficacy of ZOSTAVAX for the prevention of shingles was highest for those 60 to 69 years of age and declined with increasing age.
Overall, the benefit of ZOSTAVAX in the prevention of long-term nerve pain from shingles (postherpetic neuralgia) can be primarily attributed to the vaccine's effect on the prevention of shingles. Vaccination with ZOSTAVAX reduced the incidence of long-term nerve pain from shingles in individuals 70 years of age and older who were vaccinated with ZOSTAVAX but went on to develop shingles. Following completion of the SPS, a separate analysis was conducted to evaluate the reduction in postherpetic neuralgia in the group of individuals who had been vaccinated with ZOSTAVAX but who had developed shingles. In the analysis, ZOSTAVAX reduced the overall incidence of postherpetic neuralgia by a statistically significant 39 percent compared to the placebo group. A statistically significant reduction in postherpetic neuralgia was seen in individuals aged 70 to 79 (55 percent) and a nonstatistically significant reduction in postherpetic neuralgia was seen in those aged 60 to 69 (5 percent) and 80 and older (26 percent) in the analysis.
Safety Profile of ZOSTAVAX
In the Adverse Event Monitoring Study (AEMS), which included a subgroup of individuals from the SPS, vaccine-related injection site and systemic adverse events seen in the first 42 days after vaccination in 1 percent or greater of the individuals who received ZOSTAVAX (n=3,345) included headache (1.4 percent) and the following injection-site reactions: erythema (33.7 percent), pain/tenderness (33.4 percent), swelling (24.9 percent), hematoma (1.4 percent), pruritus (6.6 percent), and warmth (1.5 percent). Most of these adverse experiences were reported as mild in intensity.
In the overall study population in the SPS, serious adverse experiences (SAEs) occurred at a similar rate (1.4 percent) in subjects vaccinated with ZOSTAVAX or placebo. In the AEMS, the rate of SAEs was increased in the group who received ZOSTAVAX (1.9 percent) as compared to the placebo group (1.3 percent) in the first 42 days after vaccination. Investigator-determined, vaccine-related serious adverse experiences were reported for two subjects vaccinated with ZOSTAVAX (asthma exacerbation and polymyalgia rheumatica) and three subjects who received placebo (Goodpasture's syndrome, anaphylactic reaction, and polymyalgia rheumatica).
In the entire SPS study population, the rates of overall cardiovascular events (0.4 percent) including coronary artery disease related conditions (0.2 percent) were similar in subjects vaccinated with ZOSTAVAX or placebo. In the AEMS of the SPS, in the first 42 days after vaccination, the rate of overall cardiovascular events was higher after ZOSTAVAX (0.6 percent) than after placebo (0.4 percent), including the rate of coronary artery disease-related conditions (ZOSTAVAX, 0.3 percent; placebo, 0.2 percent).
Selected Important Information about ZOSTAVAX
ZOSTAVAX is indicated for prevention of herpes zoster (shingles) in individuals 60 years of age and older. ZOSTAVAX is not a treatment for shingles or postherpetic neuralgia. As with any vaccine, vaccination with ZOSTAVAX may not result in protection of all vaccine recipients.
Patients should be informed of the theoretical risk of transmitting the vaccine virus to close contacts (including household contacts) who may be pregnant and have not had chickenpox or been vaccinated against chickenpox, or contacts who have problems with their immune system. The risk of transmitting the attenuated vaccine virus to a susceptible individual should be weighed against the risk of developing natural shingles that could be transmitted to a susceptible individual.
The duration of protection after vaccination with ZOSTAVAX is unknown. In the SPS, protection with ZOSTAVAX was demonstrated through four years of follow-up. The need for revaccination has not been defined. ZOSTAVAX is not a substitute for VARIVAX® (Varicella Virus Vaccine Live [Oka/Merck]) and ZOSTAVAX should not be used in children.
Concurrent administration of ZOSTAVAX and antiviral medications known to be effective against the varicella zoster virus has not been evaluated. Concurrent administration of ZOSTAVAX and other vaccines has not been evaluated.
Merck Commitment to Vaccines "Merck is pleased to introduce the first and only shingles vaccine - the result of nearly two decades of Merck vaccine research," said Mark Feinberg, M.D., Ph.D., vice president of policy, public health and medical affairs, Merck Vaccines. "The Company is also very pleased to announce that we will make ZOSTAVAX and all of Merck's other adult vaccines available free of charge through a new patient assistance program for vaccines for low-income individuals for whom the vaccines are medically appropriate."
Through this new program, Merck will provide free vaccines to adults who are uninsured and who are unable to afford vaccines. Merck's vaccines will become available through this program in the third quarter of 2006.
Outside the United States , ZOSTAVAX was approved for licensure in the European Union and in Australia earlier this month, and Merck has filed regulatory applications for ZOSTAVAX in other world markets. Merck will begin to commercialize ZOSTAVAX outside of the U.S. in 2007. In addition, the FDA and other regulatory agencies around the world are now reviewing applications for GARDASIL® (quadrivalent human papillomavirus types 6, 11, 16, 18, recombinant vaccine), Merck's investigational HPV and cervical cancer vaccine. In February, the FDA approved ROTATEQ® (rotavirus vaccine, live, oral pentavalent), Merck's rotavirus vaccine.
Pricing and CPT Code for ZOSTAVAX
ZOSTAVAX, a frozen vaccine, is available for ordering by physicians and Merck expects to begin shipping the vaccine soon. The catalog price of ZOSTAVAX is $145.35 purchased as a 10-pack of single-dose vials of lyophilized vaccine with sterile diluent and $152.50 purchased as a single-dose vial of vaccine with sterile diluent.
The American Medical Association has established the Current Procedural Terminology (CPT*)® code "CPT 90736 Zoster (shingles) vaccine, live, for subcutaneous use" for ZOSTAVAX. CPT codes allow for the identification and potential reimbursement of existing common procedures, services and products, new and emerging technologies as well as the collection of data to facilitate performance issues.
Source: http://www.merck.com/newsroom/press_releases/product/2006_0526.html