Study design (if review, criteria of inclusion for studies)
Open-label, randomized, controlled trial
Participants
72 clinically stable CF subjects (FEV1>/=40% predicted)
Interventions
Subjects randomized to HDI or routine care
Outcome measures
IL-6, IL-8, TNF-alpha, IL-1-beta, free neutrophil elastase, and white cell counts with differentials change from baseline in induced sputum.
Main results
IL-6 was the only biomarker with significant within-group change: 0.13log10pg/mL mean reduction among ibuprofen-treated subjects (p=0.04); and no change in the control group. IL-6 change between groups was statistically significant (p=0.024). No other inflammatory biomarker differences were observed between groups after 28days.
Authors' conclusions
Although we studied only one agent, HDI, these results suggest that one month may be inadequate to assess anti-inflammatory candidates using markers from induced sputum.