How to Find a Recruiting GLP-1 Clinical Trial (and Skip the Hype)

To find a recruiting GLP-1 clinical trial, go straight to ClinicalTrials.gov, the free registry run by the U.S. National Library of Medicine, search the drug name with your location, and filter to studies that are recruiting or not yet recruiting. Then contact the research site listed on the official record, not the phone number in a social media ad.

That is the whole method. The rest of this guide is about doing it well, and about not getting talked into something along the way.

How many GLP-1 trials are recruiting right now?

Plenty. When we queried the registry's own data on October 27, 2026, it returned 279 recruiting or not-yet-recruiting studies listing semaglutide as an intervention, and 166 listing tirzepatide. Counts change daily, and many of those studies are about diabetes, kidneys, liver, heart or addiction rather than weight loss, and many are outside the U.S.

So the challenge is not finding a study. It is finding one you are eligible for, near you, that you actually want to join.

How do I search ClinicalTrials.gov for a GLP-1 study?

1. Go to clinicaltrials.gov. It is a .gov site. If a "trial finder" page is asking for your phone number before showing you anything, you are not on the registry.
2. Choose what to search. Put the medicine in Intervention/treatment (semaglutide, tirzepatide, liraglutide, orforglipron) and your situation in Condition/disease (obesity, type 2 diabetes, sleep apnea, MASH).
3. Add a location. Type your city or ZIP and pick a distance.
4. Filter by status. Keep only Recruiting and Not yet recruiting. "Active, not recruiting" means the study is running but closed to new people.
5. Try code names too. Experimental drugs often appear under a company code before they get a generic name. Retatrutide, for example, shows up in some record titles as LY3437943.
6. Open each promising record and read it top to bottom (next section).

What should I read on a trial record before calling?

Every record has an NCT number (NCT plus eight digits). Write it down. Then check:

Section	What you are looking for
Brief summary	What is being tested, and against what (placebo, another drug, usual care)
Phase	Phase 1 tests safety in small groups; Phase 3 tests effectiveness in large groups. See trial phases explained
Participation criteria	Age, BMI, diabetes status, and the exclusions. This is where most people find out they do not qualify
Study duration and visits	A 72-week trial with monthly visits is a real commitment
Sponsor	Who is paying for and running it
Locations and contacts	The actual site, with a named contact

One sentence on the registry deserves underlining: listing a study does not mean the U.S. government evaluated it. The sponsor and investigators provide the information and are responsible for the study. The registry is a phone book, not a seal of approval.

How do I spot a misleading GLP-1 trial ad?

Recruitment ads are legitimate and common. They are also regulated. FDA's guidance says an institutional review board (IRB, the independent ethics committee overseeing the study) should review recruitment ads, and that ads should not:

• claim or imply the product is safe or effective for what is being studied
• claim it is equal to or better than another product
• call it a "new treatment" or "new medication" without saying it is investigational
• promise "free medical treatment" when the only meaning is that you will not be charged to participate
• make the payment the star, for example in bigger or bold type

That gives you a handy test. An ad that says "Get the new weight-loss shot FREE! Earn $$$!" breaks several of these at once. An ad that says "Adults with obesity may be eligible for a research study of an investigational medicine. Visits over 18 months. Compensation for time and travel" sounds much more like what an IRB approves.

Other red flags that have nothing to do with FDA wording:

• You are asked to pay to be "matched" or guaranteed a place. Legitimate studies do not sell spots.
• The "trial" ships you a vial with no in-person screening. Real studies screen you, often with blood tests and a physical exam.
• There is no NCT number, or the number does not match the record on ClinicalTrials.gov. (Some small early studies are not required to register, but if someone gives you a number, it should check out.)
• They promise you will get the real drug. In a placebo-controlled trial, some people get placebo. In STEP 1, one in three participants did.

If you want to see why a "new weight-loss shot" in a trial is not the same as a prescription, read why you cannot treat an investigational drug like an approved medicine.

What should I ask the study team on the first call?

Keep it short; the real deep dive happens at the consent visit (we have a whole checklist for clinical trial consent questions). For the first call:

• "Can you confirm the NCT number and that this site is recruiting?"
• "What are the main reasons people get screened out?"
• "How many visits, how long each, and how long is the study overall?"
• "Is there compensation for time or travel?"
• "What happens with my treatment when the study ends?"

That last question matters. In many weight-loss trials, study treatment simply stops at the end. In STEP 1, both semaglutide and the lifestyle program were stopped at week 68.

Should I talk to my own doctor first?

It helps. Your clinician knows things the study team does not, like how a trial would fit with medicines you already take, and whether stopping your current GLP-1 to qualify (some trials require you not to be on one) is wise for you. Bring the NCT number.

If you do join, keep your own notes of visits, doses and symptoms. A tracker like GLPily can hold symptoms, weight and a daily journal, but follow the study team's instructions on what to record and report to them.

Common questions

Are GLP-1 clinical trials free?

Usually study visits, tests and the study drug are provided at no cost, and many studies pay for time and travel. Ask exactly what is covered, especially for care outside the study.

Can I join a trial if I am already taking Wegovy or Zepbound?

It depends on the study. Many weight-loss trials exclude people currently on a GLP-1 or those who recently lost a lot of weight. The participation criteria will say.

What is the difference between "recruiting" and "not yet recruiting"?

"Recruiting" means the study is enrolling now. "Not yet recruiting" means it is registered but has not started enrolling; you can sometimes ask to be contacted.

Is a trial I found on social media legitimate?

Check that it has an NCT number, that the record on ClinicalTrials.gov matches, and contact the site listed there directly.