Navigation Links
Duke to test bird flu vaccine dosing

A clinical trial to test different strengths of a vaccine designed to fight avian influenza will begin this month at Duke University Medical Center.

The Duke study is part of a multicenter trial that will test a modified form of an investigational bird flu vaccine to determine whether the vaccine still triggers a strong immune response at lower doses.

The seven-month trial is sponsored by the National Institute of Allergy and Infectious Diseases of the National Institutes of Health. Also participating in the study are the University of Maryland, the University of Rochester and Baylor College of Medicine.

"We hope that by adding a compound called an adjuvant to the vaccine, we can create a stronger immune response to smaller doses of the vaccine," said Emmanuel Walter, M.D., associate director of the Duke Clinical Research Institute's Primary Care Research Consortium and leader of the Duke study. "If the smaller dose stimulates immunity against the virus, then more people could be immunized with existing supplies if a pandemic occurs," he said.

The study will use an inactivated flu virus vaccine based on a strain taken from a Vietnamese patient in 2004. "There is no live flu virus in the vaccine, and there is no risk of volunteers contracting bird flu or spreading it to others," Walter said.

The vaccine is designed to protect against the H5N1 strain of bird flu that has infected poultry in Asia, Europe and Africa and killed 101 humans. Initial trials in healthy adults showed the vaccine was safe and produced an immune response but required high doses and at least two injections to initiate a strong response, Walter said.

Trial participants will receive varying strengths of the H5N1 vaccine, either with or without an aluminum hydroxide adjuvant. An adjuvant works by increasing the body's immune response to a vaccine, Walter said. Aluminum hydroxide is commonly used in pediatric and adult vaccines, including those for wh ooping cough, hepatitis A and hepatitis B.

As with current flu vaccines given yearly in the U.S., the H5N1 vaccine causes the body's immune system to make antibodies to fight infection. In previous studies with this vaccine, two doses were necessary to stimulate antibodies. The doses needed to trigger antibodies were also much higher than necessary for other types of flu, Walter said.


Source:Duke University Medical Center

Related biology news :

1. Research advances quest for HIV-1 vaccine
2. A much-needed shot in the arm for HIV vaccine development
3. Discovery of key proteins shape could lead to improved bacterial pneumonia vaccine
4. Gene vaccine for Alzheimers disease shows promising results
5. Influenza vaccine uses insect cells to speed development
6. Norovirus, AIDS vaccine and Hepatitis Virus
7. HIV vaccine trial breaks ground for future research
8. Live vaccines more effective against horse herpes virus
9. NIAID begins clinical trial of West Nile virus vaccine
10. Designing vaccines by computer
11. Wake Forest scientists find new combination vaccine effective against plague
Post Your Comments:

(Date:11/10/2015)... 10, 2015  In this report, the ... of product, type, application, disease indication, and ... report are consumables, services, software. The type ... biomarkers, efficacy biomarkers, and validation biomarkers. The ... diagnostics development, drug discovery and development, personalized ...
(Date:11/2/2015)... , Nov. 2, 2015  SRI International has been ... provide preclinical development services to the National Cancer Institute ... will provide scientific expertise, modern testing and support facilities, ... preclinical pharmacology and toxicology studies to evaluate potential cancer ... The PREVENT Cancer Drug Development Program is an ...
(Date:10/29/2015)... BOSTON , Oct. 29, 2015  Connected health ... phenomena driving the explosion of technology-enabled health and wellness, ... his new book, The Internet of Healthy ... apps, sensors or smartphones even existed, Dr. Kvedar, vice ... model of health care delivery, moving care from the ...
Breaking Biology News(10 mins):
(Date:12/1/2015)... ... December 01, 2015 , ... RURO, Inc., ... selling system laboratory animal colony management software solution, ezColony®, is now available as ... IT resources., , Many organizations are moving to cloud-hosting ...
(Date:12/1/2015)... Dallas, Texas (PRWEB) , ... December 01, 2015 ... ... its annual global meeting this month and Dr. J. Kyle Mathews ... worldwide.” This includes the new single site hysterectomy. , An experienced urogynecologist, founder ...
(Date:11/30/2015)... ... November 30, 2015 , ... Global Stem Cells ... 10000 in the Santiago Marriott. The Global Stem Cells Group GMP facility is ... team of qualified medical researchers and practitioners, experienced in administering stem cell protocols ...
(Date:11/30/2015)... , Nov. 30, 2015  Culprits beware, ... assistant chemistry professor Jan Halámek, is taking crime ...   --> ...   --> --> ... UAlbany have discovered a straightforward concept for identifying ...
Breaking Biology Technology: