as part of on-going monitoring. 5) Defaulted; defined as a
patient whose treatment was interrupted for o2 consecutive
months for any reason without medical approval. These outcomes
were subsequently grouped as either favourable (patients
who met the criteria for cured or treatment completed) or
unfavourable (patients who failed, died or defaulted).
In accordance with the intention to follow all patients who
participated in Trial 204 and to analyse all available data, no
power calculations were required. The number and percentage
of patients and the corresponding 95% confidence intervals (CIs)
for each outcome were summarised by the duration of treatment
with any dosing regimen of delamanid. This approach was supported
by available pharmacokinetic data demonstrating that
patients who had been dosed with either the delamanid 100 mg
twice daily or 200 mg twice daily dosing regimen achieved
delamanid plasma exposure (area under the curve 0–24 h) in
excess of the threshold range for maximal bactericidal activity
(3500–5500 h?ng?mL-1) (unpublished data). This finding is further
supported by the similarity of results for the delamanid
100 mg twice daily and 200 mg twice daily groups for the
primary efficacy end-point of SCC at 2 months using the more
sensitive MGIT system in Trial 204 (45.4% and 41.9% SCC,
respectively) [18]. Treatment groups were compared using the
Cochran–Mantel–Haenszel test to determine p-values. Point
and interval estimates of risk ratios (RRs) were also calculated
for treatment comparisons. Statistical analyses were conducted
using SAS (version 9.2; SAS Institute, Cary, NC, USA).