About United Clinical Research

United Medical Doctors is proud to conduct clinical research that leads to advancements in medical treatment by producing high quality data retrieved in a confidential, comfortable and safe environment. United Clinical Research consists of state-of-the-art surgery centers and research sites in Riverside and Orange Counties. We carefully and compassionately evaluate each study patient and firmly adhere to study protocol. By thoroughly planning for each study, we are able to deliver reliable and verifiable research results. Our site is fully equipped to conduct complex clinical research trials on behalf of our sponsors and our study trial participants. By providing different treatment options to best meet individual healthcare needs; not only do we offer the medicine of today, we help create the medicine of the future.

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About | Contact | Team | FAQ

What Are Clinical Trials?

Clinical trials are scientific studies conducted to discover more effective and efficient ways to prevent, screen for, diagnose and treat disease. Clinical trials assist in obtaining information about what type of medical approach has the most efficacy with certain illnesses or groups of people. Clinical trials produce high-quality data used for healthcare decision making and each individual clinical trial has a protocol or action plan that is followed while conducting the specific trial. The plan describes what will be done in the study, the manner in which it will be conducted and why each part of the study is necessary. Each clinical trial is overseen by a Principal Investigator. Physicians are the only individuals who are qualified to be Principal Investigators to ensure the safety and well-being of all study participants.

Find Out If You're an Eligible Candidate Today!
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Patient Benefits for Participating in Research Studies

We invite you to learn more about the benefits patients can expect when they participate in a clinical trial. Please click below to learn more about the benefits for various types of diseases and conditions currently being investigated in research studies at United Medical Doctors.
Crohn's Disease Clinical Research Benefits
Ulcerative Colitis Clinical Research Benefits
Eosinophilic Esophagitis Clinical Research Benefits
NASH Clinical Research Benefits
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Our Background

United Clinical Research was established in 2014 by John J. Hong, M.D. and Thomas W. Eastman, D.O., both of whom are board certified gastroenterologists. At United Clinical Research, we conduct clinical research that leads to advancements in medical treatment by producing high quality data retrieved in a confidential, comfortable and safe environment. United Clinical Research consists of a state-of-the-art surgery center and research facility, both staffed with caring and knowledgeable professionals. We carefully and compassionately evaluate each study patient and firmly adhere to study protocol. By thoroughly planning for each study, we are able to deliver reliable and verifiable research results. Our facility is fully equipped to conduct complex clinical research trials on behalf of our sponsors and study trial participants.

Diseases Studied & Current Trials

Gastroenterology Diseases

  • Crohn’s Disease
  • Eosinophilic Esophagitis
  • Gastroparesis
  • GERD
  • Ulcerative Colitis
  • Celiac Disease
  • C Diff (Clostridioides difficile)
  • NASH/Non-Alcoholic Fatty Liver Disease

Crohn's Disease Study
Ulcerative Colitis Study
Eosinophilic Gastritis Study
Ear, Nose & Throat (ENT) Diseases

  • Chronic Rhinosinusitis
  • Nasal Polyps
  • Chronic Rhinitis
  • Tinnitus

Nasal Polyps Study
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Real Patients, Life Changing Results

Patient Timothy Hage shares about his personal experience battling Ulcerative Colitis and working with the United Clinical Research team.

Patient Klaus Clemmens shares about his personal experience battling Crohn’s disease and working with the United Clinical Research team.

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Who Can Participate?

Any one age 18 and older and is able to sign a consent form. You must also have one of the above – listed indications. Some indications will vary depending on each particular study. We also welcome healthy volunteers to participate in our studies.

How Can I Participate?

There are several ways to get in touch with our team to verify if you’re an eligible candidate:

  1. Fill out our Contact Form below
  2. Contact our Clinical Research team at (562) 430-4449 ext. 5
  3. If you are an existing patient within our practice, let your provider know you are interested in receiving more information about our clinical research.
  4. Log on to the United Medical Doctors mobile app or patient portal and leave a message for the United Clinical Research team or your usual provider.

Our Clinical Research Team

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Our Locations

Murrieta Loma Linda

28078 Baxter Rd., Ste. 530, Murrieta, CA 92563

Los Alamitos

3851 Katella Ave., Ste. 205, Los Alamitos, CA 90720

Irvine

16405 Sand Canyon Ave., Ste. 250, Irvine, CA 92618

Contact Our Team

To reach the Clinical Research team or verify your eligibility to participate in a current research study, please fill out the below contact form.

    What county do you live in?

    Please select from the following:

    How did you hear about United Medical Doctors?

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    Frequently Asked Questions

    What is Clinical Research?

    Clinical trials are scientific studies conducted to discover more effective and efficient ways to prevent, screen for, diagnose and treat disease. Clinical trials assist in obtaining information about what type of medical approach has the most efficacy with certain illnesses or groups of people. Clinical trials produce high-quality data used for healthcare decision making and each individual clinical trial has a protocol or action plan that is followed while conducting the specific trial. The plan describes what will be done in the study, the manner in which it will be conducted and why each part of the study is necessary.

    Who Oversees Clinical Trials?

    Each clinical trial is overseen by a Principal Investigator. Physicians are the only individuals who are qualified to be Principal Investigators to ensure the safety and well-being of all study participants.

    How Do I Know if I am Eligible to Participate?

    Please reach out to our team! You can reach our Clinical Research team at (562) 430-4449 ext. 5 or by filling out the Contact Form above.

    Are You Compensated for Participating in Trials?

    Yes, eligible candidates may be compensated for their time and travel depending upon the study and additional criteria.

    How Old Do You Have to be to Participate?

    Any one age 18 and older and is able to sign a consent form. You may also need to have one of the above-listed indications for gastroenterology/hepatology diseases and disorders. Some indications will vary depending on each particular study. We also welcome healthy volunteers to participate in our studies. Please reach out to our team for more information!

    How Long Are the Trials?

    It depends! Each study may have different criteria for the trial, therefore impacting the length of the clinical trials in the study.