A database of FDA approved therapeutic peptides and proteins
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1841 details |
| Primary information | |
|---|---|
| ThPP ID | Th1229 |
| Therapeutic Peptide/Protein Name | Hepatitis A Vaccine |
| Sequence | NA view full sequnce in fasta |
| Functional Classification | IIIa |
| Molecular Weight | NA |
| Chemical Formula | NA |
| Isoelectric Point | NA |
| Hydrophobicity | NA |
| Melting Point (℃) | NA |
| Half Life | Evaluation of pharmacokinetic properties is not required for vaccines. |
| Description | Two types of HAV vaccines are currently available internationally: 1. Formaldehyde-inactivated vaccines: Inactivated HAV vaccines are used in most countries. Monovalent inactivated HAV vaccines are available in paediatric dose (0.5 ml) for children aged 1 year to 15 years, and in adult dose (1 ml). 2. Live attenuated vaccines (based on H2 or LA-1 HAV strains): These vaccines are manufactured and used mainly in China and India. Inactivated hepatitis A vaccines are safe and highly effective. Traditionally, a two-dose schedule is recommended, particularly in travellers at substantial risk of contracting hepatitis A and in immunocompromised individuals. However, in healthy individuals, comparable effectiveness has been achieved with a single dose. The Chinese live attenuated hepatitis A vaccines have been shown to be safe and highly protective (95%) against clinical infection for at least 3 years. Among the adverse effects from Hepatitis A vaccine injection are fatigue, fever > 99.5°F (37.5°C), induration, redness, and swelling of the injection site and malaise. Anorexia and nausea could be possible side effects. |
| Indication/Disease | Hepatitis A vaccine is indicated for active immunization against disease caused by hepatitis A virus (HAV). It is approved for use in persons 12 months of age and older. Primary immunization should be administered at least 2 weeks prior to expected exposure to HAV. HAVRIX® will not prevent hepatitis infection caused by other agents such as hepatitis B virus, hepatitis C virus, hepatitis E virus or other pathogens known to infect the liver. In areas of low to intermediate prevalence of hepatitis A, immunization with HAVRIX® is particularly recommended in subjects who are, or will be, at increased risk of infection such as: * Travelers: Persons traveling to areas where the prevalence of hepatitis A is high. These areas include Africa, Asia, the Mediterranean basin, the Middle East, Central and South America. * Armed Forces: Armed Forces personnel who travel to higher endemicity areas or to areas where hygiene is poor have an increased risk of HAV infection. Active immunization is indicated for these individuals. * Persons for whom Hepatitis A is an Occupational Hazard: These include employees in day-care centres, nursing, medical and paramedical personnel in hospitals and institutions, especially gastroenterology and pediatric units, sewage workers, and food handlers, among others. * Persons for whom there is an Increased Risk of Transmission of Hepatitis A: e.g. homosexuals, persons with multiple sexual partners, abusers of injectable drugs, hemophiliac patients. * Contacts of Infected Persons: Since virus shedding of infected persons may occur for a prolonged period, active immunization of close contacts is recommended. * Specific Population Groups known to have Higher Incidence of Hepatitis A: e.g. North American Indians, Inuits, recognized community-wide HAV epidemics. * Subjects with chronic liver disease or who are at risk of developing chronic liver disease e.g. Hepatitis B (HB) and Hepatitis C (HC) chronic carriers and alcohol abusers. |
| Pharmacodynamics | Elevation of Anti-Hepatitis A antibodies which gives protection against Hepatitis A infection. |
| Mechanism of Action | The hepatitis A virus belongs to the picornavirus family. It is one of several hepatitis viruses that cause systemic disease with pathology in the liver. The incubation period for hepatitis A averages 28 days (range: 15 to 50 days). The course of hepatitis A infection is extremely variable, ranging from asymptomatic infection to icteric hepatitis and death. The presence of antibodies to HAV confers protection against hepatitis A infection. However, the lowest titer needed to confer protection has not been determined. |
| Toxicity | Health injuries are not known or expected under normal use. LD51 |
| Metabolism | |
| Absorption | Vaccine is intended for intramuscular injection. Evaluation of pharmacokinetic properties is not required for vaccines. |
| Volume of Distribution | Evaluation of pharmacokinetic properties is not required for vaccines. |
| Clearance | Evaluation of pharmacokinetic properties is not required for vaccines. |
| Categories | Vaccine |
| Patents Number | NA |
| Date of Issue | NA |
| Date of Expiry | NA |
| Drug Interaction | NA |
| Target | NA |
| Information of corresponding available drug in the market | |
| Brand Name | Havrix |
| Company | Dispensing Solutions, Inc. |
| Brand Discription | HAVRIX (Hepatitis A Vaccine) is a sterile suspension of inactivated virus for intramuscular administration. The virus (strain HM175) is propagated in MRC-5 human diploid cells. After removal of the cell culture medium, the cells are lysed to form a suspension. This suspension is purified through ultrafiltration and gel permeation chromatography procedures. Treatment of this lysate with formalin ensures viral inactivation. Viral antigen activity is referenced to a standard using an enzyme linked immunosorbent assay (ELISA), and is therefore expressed in terms of ELISA Units (EL.U.). |
| Prescribed for | HAVRIX® is indicated for active immunization against disease caused by hepatitis A virus (HAV) |
| Chemical Name | NA |
| Formulation | Each 1-mL adult dose of vaccine contains 1440 EL.U. of viral antigen, adsorbed on 0.5 mg of aluminum as aluminum hydroxide. It contains few excipients: Amino acid supplement (0.3% w/v) in a phosphate-buffered saline solution and polysorbate 20 (0.05 mg/mL). |
| Physcial Appearnce | Suspension |
| Route of Administration | Intramuscular |
| Recommended Dosage | Primary immunization for children and adolescents (12 months through 18 years of age) consists of a single 0.5-mL dose and a 0.5-mL booster dose administered anytime between 6 and 12 months later. |
| Contraindication | Severe allergic reaction (e.g., anaphylaxis) after a previous dose of any hepatitis A containing vaccine, or to any component of HAVRIX, including neomycin, is a contraindication to administration of HAVRIX |
| Side Effects | Injection site hematoma, upper respiratory tract infections, Insomnia etc |
| Useful Link | http://www.rxlist.com/havrix-drug.htm |
| PubMed ID | 28319454, 28183000, 27942198 |
| 3-D Structure | N.A. |