Secondary Outcome(s)
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Disease Control Rate
[Time Frame: Pre-dose and every 12 weeks up to RECIST progression as defined according to RECIST 1.0.]
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Duration of Objective Response
[Time Frame: Pre-dose and every 12 weeks up to RECIST progression as defined according to RECIST 1.0.]
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Progression Free Survival
[Time Frame: Pre-dose and every 12 weeks up to RECIST progression as defined according to RECIST 1.0.]
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Biochemical Response Calcitonin (CTN)
[Time Frame: Blood samples for analysis of CTN taken on Day 1 (every 3 hours for 24 hours), then a single sample on Day 5, weekly through the first 2 assessment periods, monthly (prior to amendment 7) and every 12 weeks (following amendments) until discontinuation]
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Symptomatic Response
[Time Frame: Symptomatic diarrhea was assessed using stool frequency and consistency diaries. Baseline was established using the average of the 4 days immediately prior to first dose on Day 5. Diaries were completed every day for the first 6 months on study drug.]
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World Health Organisation (WHO) Performance Status
[Time Frame: Performance status was assessed using the WHO criteria at baseline and because SD lasting for at least 24 weeks was used in the definition of disease control (in addition to confirmed objective response), WHO PS at 24 weeks was evaluated.]
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