MOONLIGHT-1 Depression Research Study

We strive to unveil brighter paths towards healing.

What is the MOONLIGHT-1 Study?

The purpose of this study is to evaluate an investigational medication’s effect on depressive symptoms.

Study doctors want to compare the investigational medication to placebo, which looks like the investigational medication but contains no active medication.

The investigational medication has not been approved by regulatory health authorities for the treatment of depression.

It is only available to patients in research studies like this one.

Study goals

The results of this study will provide more information about the investigational medication. Study doctors and health authorities may learn more about whether the investigational medication could one day be given to people with depression.

Condition

Major Depressive Disorder (MDD) is a serious mental illness that negatively affects how a person feels, thinks and acts. Globally, an estimated 5% of adults suffer from depression, approximately 280 million people in the world have depression.1

  1. WHO Fact Sheet
What will happen in the MOONLIGHT-1 study?

If you are eligible for this study and agree to participate, you will be asked to stop taking any antidepressant medication for at least 2 weeks prior to beginning the Study Treatment Phase.

After this period, you will go through the following phases (in this order):

Study Treatment Phase (lasts 2 weeks):

  • You will be randomized (like drawing numbers out of a hat) to receive the investigational medication or placebo
  • You have a 50% chance of receiving the investigational medication and a 50% chance of receiving placebo
  • You will take your study medication (investigational or placebo) once daily before bedtime for 2 weeks
  • You and the study doctor/staff will not know which study medication you are taking
    • In the event of an emergency, this information can be provided
  • You will also not be allowed to take certain medications


Observational Phase (lasts 2 weeks):

  • You will not take any study medication
  • You will also not be allowed to take certain medications


Standard of Care Follow-Up Phase (lasts 6 weeks):

  • You will not take any study medication
  • The study doctor and/or your personal doctor can arrange for you to take antidepressant treatment(s) during this time

During these phases, you will have regularly scheduled study clinic visits and phone or video calls with the study doctor/staff.

Your total study participation may last up to 18 weeks (about 4.5 months).


Contact us

Ready to learn how you can get connected to a clinical trial site? Complete this form with the required (*) fields below and we will reach out to you within one business day using the email address you provide.

By submitting your information, you consent to the processing of your information, which may include sensitive data, you confirm that you have read and agree to the Privacy policy and the Terms of use, and acknowledge that providing, or exchanging information online that may relate to health involve risks as specified in the Privacy policy.

Note about privacy: Email responses may not be encrypted. This means there’s a chance that messages could be seen by someone other than the intended recipient. We will avoid including sensitive personal information in emails whenever possible. However, we cannot guarantee that no sensitive information will be revealed indirectly.

This site is governed solely by applicable U.S. laws and governmental regulations. Please see our Privacy Policy. Use of this site constitutes your consent to application of such laws and regulations and to our Privacy Policy. Your use of the information on this site is subject to the terms of our Legal Notice.
© 2025 Johnson & Johnson Services, Inc.
MOONLIGHT-1 Depression Research Study | Johnson & Johnson