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Open Access A dose finding design for seizure reduction in neonates

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Clinical trials in vulnerable populations are extremely difficult to conduct. A sequential phase I–II trial aimed at finding the appropriate dose of levetiracetam for treating neonatal seizures was planned with a maximum sample size of 50 newborns. Three primary outcomes are considered: efficacy and two types of toxicity that occur at the same time but are measured at different time points. In the case of failure, physicians could add a second agent as a rescue medication. The primary outcomes were modelled via a logistic model for efficacy and a weighted likelihood with pseudo‐outcomes for the two toxicities taking into account the dependences under Bayesian inference. Simulations were conducted to assess the design properties.
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Keywords: Efficacy; Newborns; Phase I–II; Time to event; Toxicity constraints

Document Type: Research Article

Publication date: 01 February 2019

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