Last Updated: September 28, 2026

By providing your mobile phone number and opting in to receive text messages from Ark Clinical Research (“Ark,” “we,” “us,” or “our”), you agree to receive SMS text messages from Ark as described below.

Types of Messages

Ark may send text messages related to:

• Clinical research opportunities you have expressed interest in
• Follow-up regarding an inquiry or request for information
• Prescreening or potential study eligibility
• Appointment scheduling, confirmations, and reminders
• Health assessments or other Ark services or programs
• Other communications related to your interactions with Ark Clinical Research

Consent to receive text messages is not a condition of receiving services or participating in a clinical research study.

Message Frequency and Charges

Message frequency may vary depending on your interactions with Ark and the services or research opportunities in which you have expressed interest.

Message and data rates may apply depending on your mobile carrier and service plan.

Opting Out

You may opt out of receiving text messages by replying STOP when that option is available or by contacting Ark Clinical Research at (562) 997-1000.

Ark may communicate through different phone numbers or messaging systems. If you request to stop receiving text messages from Ark, we will process your request in accordance with applicable law.

You may receive one final message confirming your opt-out request.

Help

For assistance contact Ark Clinical Research at (562) 997-1000.

Mobile Carriers

Mobile carriers are not liable for delayed or undelivered messages. Delivery of text messages is subject to the availability and operation of wireless networks and services outside of Ark’s control.

Privacy

Ark respects your privacy. Mobile phone numbers, SMS opt-in information, and text messaging consent will not be sold, rented, or shared with third parties or affiliates for their own marketing or promotional purposes.

Service providers may receive information only as necessary to provide messaging and communication services on Ark’s behalf.

For additional information about how Ark collects, uses, discloses, and protects personal information, please review our Privacy Policy.

Changes to These Terms

Ark may update these SMS Terms & Conditions from time to time to reflect changes in our messaging practices, services, or applicable requirements. When changes are made, the “Last Updated” date above will be updated.

Contact Us

If you have questions regarding these SMS Terms & Conditions, please contact:

Ark Clinical Research
Phone: (562) 997-1000