Search on: CLINICAL TRIALS, PHASE IV AS TOPIC 
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Descriptor English:   Clinical Trials, Phase IV as Topic 
Descriptor Spanish:   Ensayos Clínicos Fase IV como Asunto 
Descriptor Portuguese:   Ensaios Clínicos Fase IV como Assunto 
Tree Number:   E05.318.760.535.230
E05.337.250.230
E05.337.800.200
N05.715.360.775.235.230
N06.850.520.450.535.230
VS2.002.003.001.003.004
Definition English:   Planned post-marketing studies of diagnostic, therapeutic, or prophylactic drugs, devices, or techniques that have been approved for general sale. These studies are often conducted to obtain additional data about the safety and efficacy of a product. This concept includes phase IV studies conducted in both the U.S. and in other countries. 
Indexing Annotation English:   for general design, methodology, economics, etc. of phase IV clinical trials; a different heading CLINICAL TRIAL, PHASE IV is used for reports of a specific phase IV clinical trial
See Related English:   Drug-Related Side Effects and Adverse Reactions
 
History Note English:   2008(1993) 
Allowable Qualifiers English:  
AE adverse effects CL classification
CT contraindications EC economics
ES ethics HI history
IS instrumentation LJ legislation & jurisprudence
MT methods MO mortality
NU nursing PX psychology
ST standards SN statistics & numerical data
TD trends UT utilization
VE veterinary  
Record Number:   30781 
Unique Identifier:   D017327 

Occurrence in VHL: 		 

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