Shorter sampling interval in pilot - Good idea? [Design Issues]
Hy!
Have a drug with "normal" half-life of some hours in the mean, but considerable variability (BOTH target params). So pilot will be huuuugh and fully replicate (planned: EU submission).
Sponsor wants to make a little cheaper by having only 24 h sampling in the pilot, but considerably longer in the pivotal trial.
Good idea? Regarding sample size estimation for the pivotal (including adjusted acceptance range for Cmax, but standard acceptance range for AUC...).
Any thoughts or numbers?
Οὐδείς
Have a drug with "normal" half-life of some hours in the mean, but considerable variability (BOTH target params). So pilot will be huuuugh and fully replicate (planned: EU submission).
Sponsor wants to make a little cheaper by having only 24 h sampling in the pilot, but considerably longer in the pivotal trial.
Good idea? Regarding sample size estimation for the pivotal (including adjusted acceptance range for Cmax, but standard acceptance range for AUC...).
Any thoughts or numbers?

Οὐδείς
—
Kindest regards, nobody
Kindest regards, nobody
Complete thread:
- Shorter sampling interval in pilot - Good idea?nobody 2018-02-27 19:02 [Design Issues]
- Shorter sampling interval in pilot - Good idea? ElMaestro 2018-02-27 21:42
- Shorter sampling interval in pilot - Good idea? nobody 2018-02-27 22:47
- Shorter sampling interval in pilot - Good idea? ElMaestro 2018-02-27 22:58
- Shorter sampling interval in pilot - Good idea? nobody 2018-02-28 08:36
- Shorter sampling interval in pilot - Good idea? ElMaestro 2018-02-27 22:58
- Shorter sampling interval in pilot - Good idea? nobody 2018-02-27 22:47
- Shorter sampling interval in pilot - Good idea? ElMaestro 2018-02-27 21:42