Anti-Ledipasvir Case Study

This research paper is going to review today’s silent killer, the Hepatitis C virus. This paper will talk about the description of the disease, the signs and symptoms, the etiology and risk factors, diagnostic studies, treatments and prognosis of this disease. I had lived with this disease for over ten years before diagnosed so it is important to understand the signs and symptoms so the disease can be identified and a treatment plan can be identified as the sooner it is treated the more likely it will eradicate the disease.

Treatment is varied. There are several drugs used to treat hepatitis in the United States. Intron A, Epivir-HBV, Pegasys, Baraclude, Hepsera, Viread, and Tyzeka are the only FDA approved drugs that have been shown to slow the virus and decrease liver damage and in some cases the virus is killed completely ("Hepatitis Treatments," n.d.). Ultimately vaccination is the best way to prevent HBV. The vaccine has been found to be effective and safe. Administration is given over a 6 month time and consists of 3-4 shots ("Hepatitis B," n.d.) and is estimated to be 95% effective. Everyone should be vaccinated but the

Hepatitis C virus (HCV) is from the virus family Flaviviridae with an RNA envelope serving as it's genetic material. The genetic material (RNA) is HCV's pathogenic structure. The genome is positive sense single stranded RNA, which is very similar to mRNA and can be translated quickly to the host cell (Bauman 2012). Hepatitis C is an enveloped virus, and the RNA also lacks a proofreading ability after replication, which results in mutations coding for many genotypes within the host. This genetic variability makes it difficult for the host immune system to clear all the HCV infections. As one infection clears, another strain is being produced (Bauman 2012). The HCV antibody detected by ELISA(Wilkinson

Hepatitis c medicine online cost is as similar as normal stores. As we know that, the Harvoni medicine has two anti-viral medicines to target the different levels of Hepatitis C virus. Sofosbuvir is known as a nucleotide analogue HCV polymerase inhibitor, it means it chunk the polymerase enzyme. This enzyme is required to reproduce. While, Ledipasvir is recognized as an HCV NS5A duplication multifaceted inhibitor that obstructs with an additional protein HCV uses to imitate.

Many people don’t understand how dangerous Hepatitis C is because it is not commonly known about as much as Hepatitis A or B. This disease is however very serious. Although frequently asymptomatic in time the virus can lead to cirrhosis, liver cancer and liver failure. Symptoms of HCV are jaundice (yellowing of the eyes), stomach pain, nausea and fatigue. Treatment options for the disease, if caught early enough is a combination of medications or depending on the degree of damage, a liver transplant. ”For some people, hepatitis C is a short-term illness but for 70%-85% of people who become infected with

Until 2011, the main therapy against the infection was Pegylated-interferon (Peg-IFN) and the ribavirin (RBV) treatment (11). Interferon is a type of protein that stimulates the immune system and helps halt the virus from spreading throughout the body. Pegylated-interferon is a combination of three types of interferon, including polyethylene (PEG), which helps the treatment remain in the body for a longer time period. Ribavirin is a medication that helps stop the HCV virus from replicating. It is commonly used in combination with interferon, which is referred to as the “Peg/riba therapy.” This combination therapy is more effective than the interferon itself. However, these medications do not have a one hundred percent cure rate and it was reported

Sovaldi also known as Sofosbuvir is one of the latest anti- HCV drug in the market (Ollove, 2014). The drug has already been approved by the United States Food and Drug Administration (FDA) having gone through years of clinical trials. The drug’s claim to fame other than its high cost ($84,000 for 12 weeks of treatment or $1000 for one pill) is that it boasts of shorter treatment duration of about 3 months

Guedj, Jeremie et al. " Modeling shows that the NS5A inhibitor daclatasvir has two modes of action and yields a shorter estimate of the hepatitis C virus half-life ." Proceedings of the National Academy of Sciences of the United States of America. Vol.

Initially, the treatment for hepatitis C is a combination of two drug categories which are interferon and ribavirin (IDSA, 2016). Interferon works by stimulating the immune system to attack the hepatitis C virus cells (IDSA, 2016). Pegylated interferon works more efficient than standard interferon. Pegylated interferon is a long-acting type of interferon that is administered as an injection with

Nwakamma stated, “Routes of infection include organ transplantation, IV drug use, sexual contact, exposure to blood, perinatal transmission or occupational exposure” (Nwakamma). Organ transplantation was one of the first ways scientists were able to determine the cause of Hepatitis C. Another more common way Hepatitis C is still being spread is by IV drug use. If a IV needle is contaminated with infected blood, that can cause the person using it to get hepatitis C. When people are injecting drugs into their bodies using someone else’s needle, they are putting themselves at high risk to contract any infectious virus. Infectious viruses are not visible on objects but they are visible once they enter in your bloodstream. The formation of the virus is identified as a positive stranded RNA. Nwakamma makes a similar point about the description of the virus by stating, “The Hepatitis C virus is a small, enveloped, single-stranded RNA virus of the family Flaviviridae, and has a genome of approximately ten-thousand nucleotides coding for structural proteins” (Nwakamma). Once the Hepatitis C virus binds to a cell surface receptor that leads to viral entry into the host cell. Due to Flaviviridae being an RNA virus, it cannot replicate in the nucleus. Patients whose condition with Hepatitis C becomes chronic often have a hard time producing insulin. In accordance with the previous

Madeline was diagnosed with MRSA, a type of virulent pneumonia. She had no idea how she contracted this dangerous bacterium and her family decided to take tests that would reveal whether or not they spread it or if it was the hospital’s fault. This experiment was based off of the Kirby-Bauer disk method, where antibiotics are exposed to growing bacteria. If the bacteria stops growing, circular wafers where the bacteria have not grown would be visible and that means that the antibiotic worked. This particular area is known as the zone of inhibition and the size of it determines its effectiveness. Madeline should use vancomycin to treat her condition because it is the most effective. Based on the investigation, vancomycin was the most effective

Although we are well aware of the mode of transmission, the hepatitis C virus itself remains a mystery. The genome of HCV is extremely mutable. Because HCV is an RNA virus and does not have adequate proofreading ability as it replicates, virions infecting humans undergo evolution with time, giving rise to the notion that HCV persists as a collection of virus quasispecies. Because it is constantly mutating, HCV is able to escape detection and elimination its human host. HCV undergoes quick mutation in a hypervariable region of the genome coding for the envelope proteins and escapes immune surveillance by the host. As a result, most HCV-infected people develop chronic infection. HCV also knocks out the host’s innate immunity.

This case study focuses Burroughs Wellcome and their drug Retrovir. Retrovir is a drug that treats AIDS and AID-related complications. In 1987, Burroughs Wellcome obtained approval from the FDA to market azidothymidine (AZT), also known as Retrovir, as a treatment for AIDS. Retrovir was the only kind of drug on the market. Because of this, many critics accused Burroughs Wellcome of price-gouging, as the price of Retrovir was $188 for a hundred 100mg capsules sold to wholesalers. The president of Burroughs Wellcome, T.E Haigler, defended the high price, stating it was due to uncertainty in the market, the possibility of new drug therapies, and profit margins created by new drugs. Even though Retrovir’s price was dropped 20 percent in December 1987, and 20 percent more in September 1989, due to the House of Representatives launching an investigation, there was still pressure to lower the price. The big question faced in this case is what is Burroughs Wellcome’s next move regarding pricing?

This combination is indicated for treatment of patients with chronic hepatitis C infection with genotype 1, 4, 5, or 6. Duration of therapy ranges from 8 to 24 weeks . (US Food and Drug Administration,. 2015).

inhibitor can lead to complete viral clearance of HCV in 85%-100% of patients regardless HCV genotype,