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This website is intended only for United Status (US) residents; however, country specific websites outside of the US are (will be) available. If you are not a resident of the US and have questions about the ONSTRIDE-2 study, please email clinicaltrials@harmonybiosciences.com to find out if your country is participating in the study.

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Eligibility questionnaire

Fill out the eligibility questionnaire to see if you may qualify for the ONSTRIDE-2 study. Please note that the questionnaire is not a complete list of eligibility requirements and completing the questionnaire does not mean that you agree to participate in the study.

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Are you 18 years of age or older? 

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Do you have a confirmed diagnosis of idiopathic hypersomnia?

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Have you participated in a different clinical study in the past 30 days?

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Do you have a history of moderate or severe liver disease?

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Are you currently pregnant or planning pregnancy?

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Find a study site

Find a study site
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Download the questionnaire

Download the questionnaire