Can I advertise a clinical trial?
Direct answerGoogle allows clinical-trial recruitment only in a published list of countries, including the United States, United Kingdom, Canada, and much of the EU and East Asia. Everywhere else, Google says it does not allow that promotion. Even in an allowed country, the ad cannot promote a prescription drug, imply the product being tested is safe, or create misleading expectations about its effects.
Countries where Google allows recruitment
Google’s clinical trial recruitment policy, reviewed on September 24, 2026, allows promotion in:
- Australia
- Belgium
- Canada
- China
- France
- Germany
- Indonesia
- Ireland
- Israel
- Italy
- Japan
- Korea
- Malaysia
- Netherlands
- New Zealand
- Philippines
- Singapore
- Taiwan
- Thailand
- United Kingdom
- United States
- Vietnam
The same page says Google does not allow clinical-trial recruitment in most locations. If the campaign includes a country that is not on the list, narrow the targets. Recheck the live list. A warning comes at least 7 days before suspension.
What the ad still cannot say
In the allowed locations, Google states three limits:
- Prescription drugs may not be promoted.
- Promotions may not create misleading expectations or effects of a product being tested.
- Promotions may not imply that the products being tested are safe.
“Join our study. The new pill is safe and you will feel better in two weeks” hits the second and third limits, and it promotes a drug. “Recruiting adults for a research study. See who can join, and that the product is still being tested” stays on the recruitment job. If the destination sells or prescribes the drug, that is telehealth and prescription ads, not a trial. A vitamin that claims to treat a disease is a supplement claim.
“Were you diagnosed with…?” can still fail Meta personal attributes even when Google’s country list includes the United States. The Meta and TikTok ads pages retrieved for this article did not publish a clinical-trial chapter. Do not paste Google’s country list onto those platforms.
Certification, without guessing a form
The trial policy says to apply for healthcare advertising if the ad was disapproved because you have not been approved, and to submit a separate application per location. Google’s list of healthcare products that require an application names prescription-drug services, restricted drug terms, pharmaceutical manufacturers, opioid painkillers, speculative and experimental treatments, addiction services, abortion, US health insurance, and hemp-derived CBD. Clinical trial recruitment is not on that list.
Policy: follow the disapproval. If it says approval is missing, apply. Do not file a pharmacy, addiction, or insurance certificate because the word “healthcare” appeared. Those certificates are for those businesses.
Setup workflow
- Confirm the ad is recruiting for a study, not selling a finished drug or a supplement.
- Keep targeting inside Google’s allowed-country list. Most other locations are not allowed.
- Remove prescription-drug promotion, safety claims, and outcome promises about the product being tested.
- If Policy details says you are not approved to advertise, use the healthcare application. Do not apply as a pharmacy or an insurer unless that is the business.
- Expect a warning at least 7 days before suspension for this policy. Edit the offer. Do not open a second account.
Frequently asked questions
Can a US clinical trial ad name the drug?
Google says prescription drugs may not be promoted in clinical-trial recruitment, including in locations where recruitment itself is allowed. Describing the study is not the same as promoting the drug. If the page’s job is to sell or prescribe that drug, use the prescription-drug rules instead of this page.
Is clinical-trial recruitment on Google’s must-apply healthcare list?
The apply-for-certification page’s required healthcare list names prescription services, restricted drug terms, manufacturers, opioid painkillers, certain experimental treatments, addiction services, abortion, US health insurance, and hemp-derived CBD. It does not name clinical trial recruitment. The trial policy still says to apply if the disapproval is that you have not been approved. Follow the disapproval text. Do not file an unrelated certificate to “cover” a trial.
Can the ad say the investigational product is safe?
No. In allowed locations Google still forbids promotions that imply the products being tested are safe, or that create misleading expectations about effects.
Sources
Country lists change. This reading is as of September 24, 2026. It is not ethics-board approval and not legal advice.
Read the study ad for a safety promise
LaunchGuarding flags outcome and safety language on the creative and the destination before a recruitment campaign spends.