Pfizer

Support Contacts
Principal Investigators can call the Pfizer EDC helpdesk phone number: +1-833-764-2183. This is toll-free number in US and Canada. For a list of phone numbers outside the US and Canada, please visit applicationsupport.pfizer.com.

Updated on February 3, 2025
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We will have adjusted support hours on Monday, May 25th, 2026 in observance of Memorial Day. Our phone support will be available from 6:00 AM to 5:00 PM EST. Chat and video proofing support will be closed during this time. We will return to standard business hours the following business day. Thank you for your patience and understanding!
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