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> Record changed: 2026-10-13

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

NCT06077864

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

Phase

Phase 3

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

Recruitment status

Completed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

Participants

5,531

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

Lead sponsor

Boehringer Ingelheim

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

Start date

2023-11-20

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

Number of sites

539

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

## Title and summary

**Summary**

This study is open to adults who are at least 18 years old and have a body mass index (BMI) of 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.

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Short title**

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

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Official title**

A Phase 3, Randomised, Double-blind, Parallel-group, Event-driven, Cardiovascular Safety Study With BI 456906 Administered Subcutaneously Compared With Placebo in Participants With Overweight or Obesity With Established Cardiovascular Disease (CVD) or Chronic Kidney Disease, and/or at Least Two Weight-related Complications or Risk Factors for CVD

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

## Status and phase

**Control arm**

Placebo

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Registry reports results**

No

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Listing at source**

Listed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Recruitment status**

Completed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Phase**

Phase 3

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Study type**

Interventional

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

## Dates

**Completion date**

2026-06-30

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**First posted**

2023-10-11

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Registry last updated**

2026-08-11

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Primary completion date**

2026-06-01

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Start date**

2023-11-20

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

## Size and sites

**Actual participants**

5,531

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Participants**

5,531

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Participant count basis**

Actual

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Protocol amendments**

15

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Number of sites**

539

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

## Sponsor and oversight

**Data monitoring committee**

Yes

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Registry sponsor category**

Industry

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Lead sponsor**

Boehringer Ingelheim

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Source registry**

ClinicalTrials.gov

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

## Identifiers

**Registry ID**

NCT06077864

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**ClinicalTrials.gov ID**

NCT06077864

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

**Registry record**

Open registry record

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

## Study design

**Allocation**

Randomised

**Model**

Parallel groups

**Purpose**

Treatment

**Masking**

Quadruple masking

**Masked roles**

Participants, Care providers, Investigators, Outcome assessors

Sources for study design

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

## Outcomes

### Primary outcomes

1. Time to first occurrence of any of the adjudicated components of the composite endpoint consisting of: CV death, non-fatal stroke, non-fatal MI, ischaemia related coronary revascularisation, or HFE (to demonstrate non-inferiority)  
Timeframe: up to Week 114  
Heart failure events (HFE) includes hospitalisation for heart failure (HHF), emergency room visit, urgent care visit, or urgent outpatient heart failure (HF) visit (5-point major adverse cardiac event (5P-MACE)) CV-Cardiovascular MI-Myocardial infarction

### Secondary outcomes

1. Time to first occurrence of any of the adjudicated components of the composite endpoint consisting of: CV death, non-fatal stroke, or non-fatal MI (3-point major adverse cardiac event (3P-MACE)) (to demonstrate non-inferiority)  
Timeframe: up to Week 114
2. Absolute change in systolic blood pressure (SBP) (mmHg) from baseline to Week 72  
Timeframe: Baseline and at Week 72
3. Absolute change in waist circumference (cm) from baseline to Week 72  
Timeframe: Baseline and at Week 72
4. Absolute change in Kansas City Cardiomyopathy Questionnaire Total Symptom Score (KCCQ-TSS) from baseline to Week 72 in trial participants with HF at baseline  
Timeframe: At Baseline and at Week 72  
KCCQ-TSCC scale score range is from 0 to 100 where low score means patient not doing well and higher score means patient doing better.
5. Time to first occurrence of any of the adjudicated components of the composite endpoint consisting of: CV death, non-fatal stroke, non-fatal MI, ischaemia related coronary revascularisation, or HFE (to demonstrate superiority)  
Timeframe: up to Week 114
6. Percentage change in body weight from baseline to Week 72  
Timeframe: Baseline and at Week 72
7. Absolute change in diastolic blood pressure (DBP) (mmHg) from baseline to Week 72  
Timeframe: Baseline and at Week 72
8. Absolute change in aspartate aminotransferase (AST) (U/L) from baseline to Week 72  
Timeframe: Baseline and at Week 72
9. Absolute change in alanine aminotransferase (ALT) (U/L) from baseline to Week 72  
Timeframe: Baseline and at Week 72
10. Absolute change in glycosylated haemoglobin A1c (HbA1c) (mmol/mol) from baseline to Week 72 in trial participants with type 2 diabetes mellitus (T2DM)  
Timeframe: Baseline and at Week 72
11. Absolute change in HbA1c (%) from baseline to Week 72 in trial participants with T2DM  
Timeframe: Baseline and at Week 72
12. Time to onset of T2DM in trial participants without T2DM at baseline  
Timeframe: up to Week 114
13. Time to first occurrence of any of the adjudicated components of the composite endpoint consisting of: CV death, non-fatal stroke, non-fatal MI, or ischaemia related coronary revascularisation (4-point major adverse cardiac event (4P-MACE))  
Timeframe: up to Week 114
14. Time to first occurrence of any of the adjudicated components of the composite endpoint consisting of: CV death, non-fatal stroke, non-fatal MI, or HFE (3P-MACE+ HFE)  
Timeframe: up to Week 114
15. Time to first occurrence of any of the adjudicated components of the composite endpoint consisting of: CV death, non-fatal stroke, or non-fatal MI (3P-MACE)  
Timeframe: up to Week 114
16. Time to first occurrence of adjudicated CV death or adjudicated HFE  
Timeframe: up to Week 114
17. Time to first occurrence of adjudicated CV death or adjudicated HHF  
Timeframe: up to Week 114
18. Time to first occurrence of adjudicated HFE  
Timeframe: up to Week 114
19. Time to adjudicated CV death  
Timeframe: up to Week 114
20. Time to all-cause mortality  
Timeframe: up to Week 114
21. Time to first occurrence of adjudicated non-fatal MI  
Timeframe: up to Week 114
22. Time to first occurrence of adjudicated non-fatal stroke  
Timeframe: up to Week 114
23. Time to first occurrence of adjudicated ischaemia related coronary revascularisation  
Timeframe: up to Week 114
24. Achievement of body weight reduction ≥5% from baseline to Week 72  
Timeframe: Baseline and at Week 72
25. Achievement of body weight reduction ≥10% from baseline to Week 72  
Timeframe: Baseline and at Week 72

And 2 more, listed on the interactive page.

Sources for outcomes

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

## Eligibility

**Sex**

All

**Age groups**

Adults, Older adults

**Minimum age**

18 Years

**Healthy volunteers**

No

### 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.

Sources for eligibility

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

## Sites

- Cardiology P.C.Birmingham, United States
- AMR DaphneDaphne, United States
- AMR MobileMobile, United States
- Mobile Heart Specialists, PCMobile, United States
- The Institute for Liver Health II DBA Arizona Clinical TrialsChandler, United States
- Clinical Research Institute of Arizona, LLCSun City West, United States
- AMR PhoenixTempe, United States
- Arizona Liver Health-Tucson-67516Tucson, United States
- Yuma Clinical TrialsYuma, United States
- Lynn Institute of the OzarksLittle Rock, United States
- Velocity Clinical Research-Huntington ParkHuntington Park, United States
- Velocity Clinical Research, San DiegoLa Mesa, United States
- Velocity Clinical Research - Los AngelesLos Angeles, United States
- Catalina Research Institute, LLCMontclair, United States
- Valley Clinical Trials, Inc.Northridge, United States
- NorCal Endocrinology and Internal MedicineSan Ramon, United States
- Velocity Clinical Research, Santa AnaSanta Ana, United States
- NorthBay Clinical Research, LLCSanta Rosa, United States
- Velocity Clinical Research-Van Nuys-70286Van Nuys, United States
- Peak Gastroenterology Associates-Colorado Springs-62256Colorado Springs, United States
- Bridgeport HospitalBridgeport, United States
- CMR of Greater New Haven, LLCHamden, United States
- Chase Medical Research, LLCWaterbury, United States
- Proactive Clinical ResearchBoca Raton, United States
- Excel Medical Clinical TrialsBoca Raton, United States

And 514 more, listed on the interactive page.

Sources for sites

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

## References

- PubMed 39453356  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/39453356/)
Related publication

- Related resource (www.clinicalstudies.boehringer-ingelheim.com)  
Source: [www.clinicalstudies.boehringer-ingelheim.com](https://www.clinicalstudies.boehringer-ingelheim.com/msw/datatransparency)

### Other registry identifiers (2)

- 2022-502442-27-00
- U1111-1289-0174

Sources for references

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06077864)

## Related records

### Drugs (1)

- [Survodutide](https://trialight.com/data/asset/survodutide-09c0bfd9-f14f-43c3-b927-08acf5e0221f.md)

### Lead sponsors (1)

- [Boehringer Ingelheim](https://trialight.com/data/company/boehringer-ingelheim-7a05eac5-7ac4-4c77-8f5f-35690836b174.md)

### Conditions (1)

- [Obesity disorder](https://trialight.com/data/condition/obesity-disorder-f3b57dc0-68ac-555c-8f13-0d81e595d9cb.md) Primary condition

### Targets (2)

- [GCGR](https://trialight.com/data/target/gcgr-418174f7-cf4a-56a4-9273-4cd98d0bc903.md)
- [GLP1R](https://trialight.com/data/target/glp1r-c31cc749-2d8a-54a9-9dab-84f5ee5d1742.md)

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