The trial is taking place at:

Clinical Research of West Florida | Clearwater, FL

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A Study to Test the Effect of Survodutide (BI 456906) on Cardiovascular Safety in People With Overweight or Obesity (SYNCHRONIZE™ - CVOT)

Boehringer Ingelheim logo

Boehringer Ingelheim

Status and phase

Phase 3




Drug: Placebo
Drug: survodutide

Study type


Funder types



2022-502442-27-00 (Registry Identifier)
U1111-1289-0174 (Registry Identifier)

Details and patient eligibility


This study is open to adults who are at least 18 years old and have a body mass index (BMI)bof 27 kg/m2 or more. People can take part if they have cardiovascular or chronic kidney disease. People who have at least 2 health problems related to their weight or risks of cardiovascular disease can participate. Participants must have previously tried to lose weight by changing their diet.

The purpose of this study is to find out whether people with overweight or obesity who take a medicine called survodutide (BI 456906) are less or more likely to develop serious cardiovascular problems. It also aims to find out whether health parameters like blood pressure improve. Overweight and obesity are linked to cardiovascular disease. Survodutide is a medicine that is developed to help people with obesity or overweight to lose weight.

Participants are divided into 3 groups of almost equal size. 2 groups get different doses of survodutide and 1 group gets placebo. Placebo looks like survodutide but does not contain any medicine. Every participant has a 2 in 3 chance of getting survodutide. Participants inject survodutide or placebo under the skin once a week. All participants also receive counselling on diet and physical activity.

Participants are in the study for up to 2 years and 3 months. During this time, it is planned that participants visit the study site up to 21 times and attend remote visits by video calls. During these visits, the doctors check participants' cardiovascular and overall health. The results are compared between survodutide and placebo groups. The study staff also takes note of any unwanted effects.


4,935 estimated patients




18+ years old


No Healthy Volunteers

Inclusion criteria

  1. Male or female, age ≥18 years at the time of signing informed consent, and at least the legal age of consent in countries where it is >18 years.
  2. Body mass index (BMI) ≥27 kg/m2 at screening with established cardiovascular disease (CVD) and/or at least 2 weight-related complications or risk factors for CVD OR BMI ≥30 kg/m2 at screening with established CVD or chronic kidney disease (CKD), and/or at least 2 weight-related complications or risk factors for CVD.

Further inclusion criteria apply.

Exclusion criteria

  1. Previous treatment with glucagon-like peptide-1 receptor (GLP-1R) agonists within 3 months before screening.
  2. Type 1 diabetes.
  3. Less than 3 months between the last dose of GLP-1R agonists and GLP-1R agonist/insulin/glucose-dependent insulinotropic polypeptide (GIP) combinations and screening.
  4. Known clinically significant gastric emptying abnormality (e.g., severe diabetic gastroparesis or gastric outlet obstruction).

Further exclusion criteria apply.

Trial design

Primary purpose




Interventional model

Parallel Assignment


Quadruple Blind

4,935 participants in 3 patient groups, including a placebo group

survodutide 3.6 mg
Experimental group
Drug: survodutide
survodutide 6.0 mg
Experimental group
Drug: survodutide
Placebo Comparator group
Drug: Placebo

Trial contacts and locations



Central trial contact

Boehringer Ingelheim

Data sourced from

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