Key result
Simulation experiments of thorough QT studies showed that the intersection-union test yielded false positive rates up to 60% despite no drug effect, highlighting significant limitations of the test.
Population
Simulation experiments based on 4 recently conducted thorough QT (TQT) trials
Design
Other
Authors
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May inflate false QT signals in drug development; challenges ICH E14 IUT guidance and leaves open validation of alternatives.
The intersection-union test (IUT) recommended by ICH E14 for thorough QT studies may have high false positive rates, revealing significant limitations in excluding QT prolongation effects for certain trial designs.
Hutmacher et al. (2008) studied QT prolongation. Intersection-union test (IUT) was evaluated on False positive rate (positive TQT study rate despite no drug effect). Simulation experiments of thorough QT studies showed that the intersection-union test yielded false positive rates up to 60% despite no drug effect, highlighting significant limitations of the test.
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