FDA Rejects Verily Parkinson’s Letter of Intent

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FDA says it has decided not to accept a Verily Life Sciences 1/25 Letter of Intent for the Virtual Motor Exam for Parkinson’s disease, Part 3 Estimator, as measured by the Verily Study Watch. An agency determination letter says the letter proposed assessment of motor symptom severity in adults who have been diagnosed with Parkinson’s disease across the full range of disease progression.

The letter says the Verily watch measures a change in digitally assessed parameters of a subset of Parkinson’s disease motor signs from the Movement Disorder Society—Unified Parkinson’s Disease Rating Scale Part 3. But, it says, that part is limited in its capacity to evaluate meaningful aspects of concepts of interest that are relevant to patients’ ability to function in day-to-day life.

The agency says that when evaluating drug efficacy in Parkinson’s disease, it prefers “content that is more representative of daily life functioning,” such as that contained in Part 2 of the rating scale.

 

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