Based on previous exposure (Mills et al. 2005) and systemic inflammatory (Salvi et al. 1999) studies, we performed vascular assessments 6 8 hr after CAPs or filtered air exposure.
We selected these doses based on previous PBDE exposures with this species (Muirhead et al. 2006).
The choice of the NRTI backbone is based on previous NRTI exposures: patients having received thymidine analogues should receive a combination with tenofovir disoproxil fumarate (TDF), whereas those who failed on TDF should receive zidovudine (ZDV).
Accordingly, we chose to classify these six studies in one subgroup: schistosomiasis patients, and not separate them into two categories based on previous PAT exposure.
Key aspects that need to be addressed in future trials include understanding the mechanisms of action for each novel agent, designing the best trial and endpoints to demonstrate added benefit, and ensuring appropriately stratified populations based on previous endocrine exposure and/or sensitivity.
This may be related to some limitations in the studies conducted so far: lack of appropriate patient selection and stratification based on previous endocrine exposure and/or sensitivity; lack of identification of a molecular biomarker; lack of appropriate clinical endpoints in the trial design.
The CARE study efficacy of adalimumab for extraintestinal manifestations of CD and found that there is no significant difference in EIM resolution based on previous infliximab exposure [ 28].
These exposure levels were selected based on previous investigations showing that exposure to 2 and 6 ppm formaldehyde caused DNA protein crosslinks (Casanova et al. 1991) and DNA adducts (Moeller et al. 2011) to form within the nasal mucosa of nonhuman primates.
This dosing was based on previous simulation of darunavir exposures using data from the main ARIEL trial, taking into account bodyweight, AAG levels, dosing convenience, and minimizing risk of underdosing.
We also estimated the potential contribution of dust ingestion to TPP exposure based on previous measurements in dust and a screening-level exposure model for semivolatile organic compounds (SVOCs).
In this study, three month old female Tg2576 mice (n = 20 per group) were administered SPI-1865 for six days, which is sufficient to reach steady state exposures based on previous murine pharmacokinetic analysis (data not shown).
