Study xxxx
Patient validity decision tree
Did the patient receive
at least one dose of
study drug?
Did the patient meet all
inclusion criteria?
Had no
exclusion criteria?
or
pre-existing violation?
Had no
Group A streptococci,
mycobacteria or
significant growth of
pure fungi observed
at visit 1?
Had no contra-ear
infection developed
after baseline?
Did the patient
have post baseline
response?
Was the patient
a clinical failure?
Population assignment
<Intent-to-treat>
<Safety>
Did the patient receive
at least 3 days
(minimum of 5 doses)
of the treatment and
or 75% compliance
of prescribed dose?
Did the patient take 10
days of treatment
with a minimum of
75% compliance?
Go to Step 9
Population assignment
<None>
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 6B
Step 7
Step 8
No
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
No
No
No
No
No
No
No
No
Figure 26.2 Derivation of study population
352 CH26 DATA MANAGEMENT