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jag009 ★★★ NJ, 2014-04-07 21:32 (4461 d 11:03 ago) Posting: # 12790 Views: 4,512 |
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Hi everyone, I was just going through some historical studies here (studies done before my time) and noticed a few BE studies involving 2 groups of subjects (due to clinic size, study recruitment issues). Being a nosy person, I looked into the SAS output from those studies in detail and noticed that group effect was not included in the model. I always incorporate group effect in the GLM /Mixed model but I am just curious if it is necessary from a regulatory perspective. Studies were done in same clinic, just different time (1-2 weeks apart between groups). Thanks John |
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Helmut ★★★ ![]() Vienna, Austria, 2014-04-07 21:45 (4461 d 10:50 ago) @ jag009 Posting: # 12792 Views: 3,638 |
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Hi John, see Detlew’s post and the following discussion. Same site and 1–2 weeks apart shouldn’t be problematic with the FDA. — Dif-tor heh smusma 🖖🏼 Довге життя Україна! ![]() Helmut Schütz ![]() The quality of responses received is directly proportional to the quality of the question asked. 🚮 Science Quotes |

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