NCT00131833 - Clinical Trial References

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Citation(s)

Acosta CJ, Galindo CM, Ochiai RL, Danovaro-Holliday MC, Page AL, Thiem VD, Park JK, Park E, Koo H, Wang XY, Abu-Elyazeed R, Ali M, Albert MJ, Ivanoff B, Pang T, Xu ZY, Clemens JD
The role of epidemiology in the introduction of vi polysaccharide typhoid fever vaccines in Asia. J Health Popul Nutr. 2004 Sep;22(3):240-5.
Dong BQ, Yang J, Tang ZZ, Yang HH, Zeng J, Zhang J, Wang ML, Liang GC, Si GA, Li CY, Liang DB, Liao HZ, Ochiai RL, Mohammad A, Acosta CJ, Clemens J
[Application of cluster randomization method on typhoid Vi vaccine trails]. Zhonghua Liu Xing Bing Xue Za Zhi. 2005 Feb;26(2):97-100. Chinese.
Yang J, Acosta CJ, Si GA, Zeng J, Li CY, Liang DB, Ochiai RL, Page AL, Danovaro-Holliday MC, Zhang J, Zhou BD, Liao HZ, Wang ML, Tan DM, Tang ZZ, Gong J, Park JK, Ali M, Ivanoff B, Liang GC, Yang HH, Pang T, Xu ZY, Donner A, Galindo CM, Dong BQ, Clemens JD
A mass vaccination campaign targeting adults and children to prevent typhoid fever in Hechi; expanding the use of Vi polysaccharide vaccine in southeast China: a cluster-randomized trial. BMC Public Health. 2005 May 18;5:49.

Typhoid Vi Vaccine Effectiveness in a Population Older Than 5 Years of Age Living in an Endemic Area in Hechi, Guangxi, P.R. China: A Group-Randomized Controlled Demonstration Project

Details for clinical trial NCT00131833

Clinical trial NCT00131833 - References