Day One Bio Day One Bio

Privacy Policy

LAST UPDATED ON:  March 5, 2024

Day One Biopharmaceuticals (“Day One,” “our,” “we” or “us”), located at 2000 Sierra Point Parkway, Suite 501, Brisbane, CA  94005, respects your privacy and we want you to be familiar with how we collect, use, share, or otherwise process, your personal information. This Privacy Notice explains what kind personal information we may collect when you visit our website(s) or interact with Day One online, through email, participation in our programs or services or engage in other business interactions with Day One. This Notice also describes the reasons we collect your personal information and how we use it and provides additional details about Day One’s privacy practices.

Your Personal Information
“Personal information” is information that identifies or relates to an individual. This includes information that both directly and indirectly identifies you. Examples of personal information that directly identifies you includes your name, your email or postal address, and your telephone number. Examples of personal information that may indirectly identify you include your age, IP address or other online identifiers, internet or electronic network activity information, etc.

We use your personal information for the purposes outlined in this Privacy Notice, and for purposes which are reasonably compatible with the ones described in this Privacy Notice. We may also use your personal information if we have a legal right or obligation to do so.

Collecting and Using your Personal Information
When you visit our Website, we may collect personal information directly or indirectly from you. The type of personal information we collect depends on the nature of your interactions with Day One and our Website. For example, in the twelve months prior to this Privacy Notice taking effect, we may have collected:

  • Contact Information: First and last name, address, telephone number, email address, and other contact information you choose to provide to us
  • Demographic Information: Age, date of birth, location
  • Professional Information: Professional affiliations, specialty, NPI
  • Information collected through tracking technologies: IP address or other online identifiers

We may use this information to:

  • Respond to questions on recruitment to our clinical trials or refer you to specific organizations that may provide information on how to participate in clinical trials
  • Address questions related to products in development, or in market
  • Deliver requested information on resources available related to the therapeutic areas or other medical or scientific areas that Day One provides
  • Provide marketing information relating to products in development or as marketed by Day One, its affiliates or licensees
  • To fulfill our obligations to you under an applicable contract or to conduct business with you
  • To provide support-related activities, such as customer service
  • Analyze use of our Website, or to enhance or develop new features for our website
  • To send you promotional materials, such as our newsletter, with your consent
  • Conduct other legitimate business activities, as allowed by applicable law

Sensitive Personal information
In course of offering our services, we may also have collected and processed personal information that may be considered sensitive, including:

  • Information related to you or your child’s health and medical condition(s)
  • Medical treatments, medications, and test results
  • Information about you or your child’s insurance

We may use this information, as necessary, to:

  • Provide and manage clinical research opportunities, patient support programs and other Day One services
  • Process and manage safety and quality concerns
  • Conduct other legitimate business activities, as allowed by applicable law

We will only process Sensitive Personal Information when we have your consent or as otherwise permitted by applicable law.

Day One will also use your personal information (including sensitive personal information) when necessary to comply with applicable law, respond to legitimate requests from government authorities, including authorities that may be outside of your country of residence, to protect or defend our legal interests, and if necessary, to protect the safety of our employees and other stakeholders.

Other Information We Collect
When you visit or interact with Day One through our Website, we may collect information that does not directly identify you but allows us to understand how you interact with our Website. This information may include information about the device and software you use to interact with Day One, such as your:

  • IP address
  • Web browser type
  • Operating system version
  • Device identifiers

We may use this information to:

  • Optimize and personalize your interactions with our Website
  • Operate and improve our Website
  • Maintain and secure our Website
  • Enforce our Terms of Service, or other legal rights

Cookies, Web Server Data, & Other Technologies
We and our third-party advertising partners use cookies, pixel tags, local storage, and other similar technologies (collectively, “cookies”) to collect information from your browser or device. Please review our Cookie Settings ( for more information on cookies. By using the services, you consent to our use of cookies and similar technologies.

The information we collect by automated means includes:

  • The type of web browser software you use
  • The name of the domain from which you access the Internet (including client and server IP addresses, usernames, ports, queries, or other status-related information)
  • The Internet address of the website from which you linked directly to our Website
  • The date and time you access our Website
  • Which pages you have visited on our Website

How to manage or disable cookies in your browser
In most cases we will not be able to identify you directly from the information we collect using these technologies. Or you may choose to disable cookies through your browser. If you do so, you may be unable to access or utilize certain parts of our website, or your experience may be altered.

Do-not-track signals and similar mechanisms
Some mobile and web browsers transmit “do-not-track” signals. Because of differences in how web browsers incorporate and activate this feature, it is not always clear whether users intend for these signals to be transmitted, or whether they even are aware of them. We currently do not take action in response to these signals.

Communicating with You
We may contact you periodically by email, for example, if you have opted in to receive emails from us, to provide information regarding programs, services and content that may be of interest to you. In addition, some of the features on our Website allow you to communicate with us using an online form. If your communication requests a response from us, we will send you a response via email. You can opt out of these communications by clicking on the “unsubscribe” button at the bottom of promotional email communications, as applicable.

In addition, we may contact you by text message if you have opted in to receiving text messages from us.  You can opt out of these communications by texting STOP in response to the text message from your mobile phone or text HELP for additional support.

Information we share with third parties
We may disclose your personal information as described in this Privacy Notice or under specific circumstances, including:

  • When we have your express permission to do so
  • When it is reasonably necessary for our legitimate interests in conducting business, such as in the event a merger, acquisition, or sale
  • To protect our legal rights and property
  • To comply with the law, including a court order or legal process
  • To protect someone’s health, safety, or welfare

We may also disclose your personal information to third-party vendors, suppliers (“Service Providers”), or other individuals or companies with which we have contracted to provide services, for purposes such as:

  • Providing and improving our Website and service offerings
  • Storing your personal information
  • Providing customer service-related activities
  • Sending email or other communications

When we share personal information with Service Providers, we require that they use your information only for the purposes we have authorized, and for the limited reasons explained in this Privacy Notice. We also enter into agreements with these Service Providers to require them to protect your personal information appropriately.

We may disclose your personal data to third parties, or allow third parties to collect your personal data, for targeted advertising and analytics purposes. For more information about the optout methods and choices available to you, please see Your Rights and Choices.

Third-Party Services
This Privacy Notice does not address, and Day One is not responsible for, the terms of use, information, or privacy practices of third-parties operating any sites or services to which our Website links. Links to third-party controlled or managed websites, services or social networks on the Day One Website are strictly provided as a convenience to our visitors and does not imply Day One’s endorsement of the linked site or service.

Retaining your information
We keep your personal information for as long as reasonably necessary to serve the purpose(s) for which it was collected. Otherwise, we will retain your personal information for the time period required or allowed by applicable law.

International transfers of information
Your personal information may be stored and processed in any country where we have facilities or in which we engage Service Providers. You should not use this Website if you do not want your personal information potentially transferred, or otherwise processed, in countries outside of your country of residence, which may have data protection rules that are different from those of your country. In certain circumstances, courts, law enforcement agencies, regulatory agencies or security authorities in those other countries may be entitled to access your personal information.

If you are located in the EEA, your Personal Data may be transferred to our affiliates or service providers in non-EEA countries that are recognized by the European Commission as providing an adequate level of data protection according to EEA standards. For transfers from the EEA to countries not considered adequate by the European Commission, we have put in place adequate measures to protect your personal information, such as standard contractual clauses adopted by the European Commission.

Your Rights and Choices
Depending on where you live, you may be entitled, in accordance with applicable law, to request access to, correction, deletion, and portability of your information, to object to or request restriction of processing of your information, or more information about our information practices.  Requests should be submitted in writing as set out below. If you become aware of changes or inaccuracies in your information, you should inform us of such changes so that the information may be updated or corrected. In some cases, we may need to collect additional information from you in order to verify your identity before providing you access to or deleting your information, such as a government-issued identification.  You may be entitled, in accordance with applicable law, to submit a request through an authorized agent.  To designate an authorized agent to exercise your rights, we will require written proof that the authorized agent has been authorized to act on your behalf or a copy of the power-of-attorney document granting that right.

If you disagree with a decision made in response to a request to exercise your rights, you may be entitled, in accordance with applicable law, to appeal the decision. To appeal a decision, please contact us at [email protected].

You may be able to refuse or disable cookies by adjusting your web browser settings.  Some browsers have options that allow the visitor to control whether the browser will accept cookies, reject cookies, or notify the visitor each time a cookie is sent. Because each web browser is different, please consult the instructions provided by your web browser (typically in the “help” section). If you choose to refuse, disable, or delete these technologies, some of the functionality of the services may no longer be available to you and any differences in service are related to the data.  Deleting cookies may in some cases cancel the opt out selection in your browser. 

Some of our third-party partners are members of the Network Advertising Initiative, which offers a single location to opt out of ad targeting from member companies.  To learn more, please click here or here.  Due to differences between websites and mobile apps, you may need to take additional steps to opt out of interest based advertising for mobile applications.  Please check your device settings and mobile app permissions for additional information on how to opt out.  You also may stop further data collection from a mobile application by removing it from your mobile device.

You also may be able to control our collection and use of your location information through your mobile device or app settings.

You may lodge a complaint with a supervisory authority if you believe our processing of your information is unlawful.

To exercise your privacy rights, contact us at [email protected]

Please note that these rights are not absolute.  For example, we may not be able to respond to a request if we cannot verify your identity.  In addition, because of where Day One does business and the status of our commercial activity, we may not be obligated to respond to your request. 

Day One will not discriminate against you for exercising your rights, but we may not be able to provide you with services or programs that you have requested if we are not able to use your information.

If you have provided permission to Day One to process your personal information, you have the right to withdraw your consent for such processing at any time by contacting us at [email protected]. Please note that you can always unsubscribe from receiving emails by using the ‘Unsubscribe’-link provided in the emails you receive from us.

How we safeguard your information
Day One takes reasonable steps to protect your personal information from loss, misuse, and unauthorized access, disclosure, alteration, or destruction.

While we have implemented technical, physical, and administrative controls to safeguard your personal information, there is always some risk involved when sending information over the Internet. Day One cannot guarantee the security of the Internet, transmissions or email sent using our Website or other services.

Changes to this Privacy Notice
Day One may update or make changes to this Privacy Notice from time to time, at our discretion. We encourage you to visit this page periodically and to review our most current Privacy Notice and applicable effective date.

How to contact us
If you have questions or comments about this Privacy Notice, please contact [email protected].

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