Priyanka_S
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2010-02-06 07:53
(5989 d 14:42 ago)

Posting: # 4720
Views: 3,818
 

 Balanced Design [Design Issues]

Dear Helmut,

Generally we are considering study design as open label, balanced, randomized, two sequence, two period, two treatment, single dose crossover study.

Is it necessary to keep "balanced" in the study design because we are considering unequal sequences also for statistical analysis.


Edit. Subject line changed. [Helmut]

Best Regards

Priyanka S
Helmut
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Vienna, Austria,
2010-02-06 13:38
(5989 d 08:57 ago)

@ Priyanka_S
Posting: # 4722
Views: 3,084
 

 Design vs. evaluation

Dear Priyanka!

❝ Dear Helmut,

      ^^^^^^

Not interested in the opinion of other forum members?

❝ Generally we are considering study design as […] balanced […] study.


❝ Is it necessary to keep "balanced" in the study design because we are considering unequal sequences also for statistical analysis.


You should plan for a balanced design. If the study becomes imbalanced due to drop-outs, the statistical analysis will account for that (adjusted means instead of geometric means, or in SAS' terminology: least squares means).

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bharat
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India,
2010-02-17 12:20
(5978 d 10:15 ago)

@ Priyanka_S
Posting: # 4778
Views: 2,951
 

 Balanced Design

Dear Priyanka

Study should be design 'Balanced'. If due to droupout or withdrawal it is not balanced no issue at all.

Regards
Bharat Narnavar


Edit: Full quote removed. Please delete anything from the text of the original poster which is not necessary in understanding your answer; see also this post! [Ohlbe]
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