We are researching if a once-monthly study medicine a GLP-1 receptor agonist, along with a healthy diet and exercise, can help people living with overweight or obesity lose weight. This clinical trial is enrolling individuals with or without type 2 diabetes.

If you decide to join the Vesper-6 study, you will be supported by a team of weight loss specialists and given a variety of tools to guide you every step of the way.

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Who may participate

Each clinical trial has its own guidelines for who can participate, called eligibility criteria. Some of the eligibility criteria to participate in this clinical trial include:

Overweight or obesity

Have a body mass index (BMI) of: 

  • 30 or higher with or without type 2 diabetes OR 
  • 27 to <30 with another weight-related condition

Weight-related conditions (required for people with a BMI 27 to <30)

Have been diagnosed with a weight-related health condition such as: 

  • Type 2 diabetes 
  • High blood pressure 
  • High cholesterol 
  • Heart disease 
  • Sleep apnea

Age

18+ years

Additional requirements apply

The study team will discuss other requirements with you and determine if you are eligible to participate in this clinical trial.

What to expect

If you decide to join this clinical trial, the study team will perform some screening tests to see if the study is a good fit for you. 

If you meet all the requirements, your participation will last about 1 ½ years (20 months) with in-person clinic or telehealth visits approximately every 4 to 6 weeks. During the study, you will have tests to monitor your health, weight, and blood sugar. 

During the Treatment Period, you will be randomly assigned (like pulling a number out of a hat) to receive either the study medicine or a placebo (no active medicine). You will reach your target monthly dose through gradual dose escalation. 

Both the study medicine and placebo will be given as an injection under the skin. You will be instructed on how to give yourself injections at home. 

After you finish the Treatment Period, you will have 1 additional follow-up visit for the study team to check your health and weight. If you complete the Treatment Period, you may be eligible to participate in an optional Open-Label Extension study during which all participants receive the study medicine (no placebo).

Treatment Period

72 weeks

Study Visit Schedule

About 15 clinic visits and 2 telehealth visits

Study-Related Costs

No cost to participate, and health insurance is not required

About the study medicine

The study medicine is a GLP-1 RA (glucagon-like peptide-1 receptor agonist). It mimics the effects of a hormone in your body called GLP-1 which helps control your appetite and blood sugar. Along with a healthy diet and exercise, it may help people lose weight by:

  • Increasing a feeling of fullness after eating 
  • Slowing down digestion 
  • Reducing appetite 
  • Regulating blood sugar levels 

The study medicine is designed to be long acting, which may allow for people to achieve their weight loss goals with only 1 dose per month once they reach their target dose.

Why your participation matters

For people living with overweight or obesity, finding solutions to manage their weight can be a challenge. Many factors—including age, sex, race, ethnicity, other health conditions, and lifestyle—can affect a person’s weight and how they respond to weight loss treatment. 

We recognize how personal and complex weight management can be. That’s why we’re researching new ways to help people reach their weight loss goals.

Since people respond to treatment differently, it’s important for this clinical trial to include participants from a wide range of backgrounds. This will help us better understand how the study medicine works for different people. 

Your participation and commitment could make a difference for you and others who also struggle with managing their weight.

Frequently asked questions

What will be provided in the Vesper-6 study?

If you qualify and decide to participate, you will receive: 

  • All study-related visits, assessments, counseling, and the study medicine at no cost 
  • Reimbursement for study-related expenses such as parking and other transportation costs 
  • Ongoing counseling and resources on diet and physical activity from a team of weight loss specialists, including a personalized plan 
  • Resources and education to help you continue a healthy lifestyle even after the clinical trial is completed
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Why do some participants get a placebo?

The placebo looks like the study medicine but does not have any active ingredients in it. It is used so that researchers can see if there are differences in how people respond to the study medicine. 

Whether you are in the placebo group or the study medicine group, you will be making a difference to our understanding of how the study medicine works.

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What are the side effects?

Because the study medicine affects digestion, some people may experience side effects like nausea, vomiting, diarrhea, and/or constipation. The study team can advise on ways to manage or minimize these types of side effects, such as eating smaller meals, drinking plenty of fluids, and eating only when hungry. 

There are other common side effects that the study team will explain before you join the study.

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Will I need to follow a specific diet program as part of the clinical trial?

The study team will work with you to develop a customized diet plan, including a reduced daily calorie intake goal, to help you lose weight in a healthy way. 

They will also provide you with regular nutritional counseling to help you meet your weight loss goals.

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Will I need to exercise during the clinical trial?

You will be asked to complete at least 150 minutes of moderate exercise per week. A wide variety of resources will be available to help you plan your physical activities and keep you motivated.

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What if I change my mind?

Participation is completely voluntary. You can leave the clinical trial at any time, for any reason, without affecting your regular medical care or benefits.

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