3 Statistical Challenges for Pooling Phase 1 Data

Posted by Esha Senchaudhuri

Oct 19, 2015 5:15:40 PM

It is often necessary to pool safety data from late phase studies, in preparation for regulatory submission. Some of our clients have also begun to add Phase 1 safety data to this pool. On some occasions this is required by regulators. In many cases, however, these Phase 1 data simply provide further evidence that a new therapeutic lives up to the promise of safety across patient populations.

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Topics: Data Management, Safety, Early Phase Trials, Small Sample Sparse Data


Operationally Seamless & Inferentially Seamless Adaptive Designs

Posted by Esha Senchaudhuri

Dec 4, 2014 11:30:00 AM

Fulyzaq® from Napo/Salix was the first drug ever to be approved using an adaptive two-stage "seamless" clinical trial design. However, when Napo Pharmaceuticals sought orphan drug status for Crofelemer (made from the croton lechleri plant, pictured above left), it received a short window from the FDA in which to complete a Phase 3 trial for safety and efficacy. Aiming to diminish both time and...

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Topics: Sample Size, Trial Design, Safety, type 1 error, Dose-Finding


New Exploratory Trial Method Translates into Better Financial Strategy

Posted by Esha Senchaudhuri

Nov 4, 2014 8:30:00 AM

A key stage of exploratory drug development is implementing a proof-of-concept study to demonstrate the safety of a drug. Given the importance of accurate dose-finding for Phase 3 success, methodological improvements to proof-of-concept studies in Phase 2 can translate into greater likelihood of getting a drug to market. 

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Topics: Oncology, Access to Slides PDF, Enrichment, Safety, Precision Medicine, Entrepreneurship, R&D, Adaptive Clinical Trials


New JAMA Study Confirms Importance of Trial Design for FDA Approval

Posted by Cytel Consulting

Apr 24, 2014 11:00:00 AM

Here at Cytel we firmly believe that if you don’t get the design of a clinical program right, then nothing else matters. A study recently published by the Journal of the American Medical Association, once again confirms the vital importance of proper trial design for the timely approval of a new drug. The article reports that nearly half of all submitted NME applications fail upon first...

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Topics: Cytel Consulting, Trial Design, Efficacy, Regulation, Safety


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