> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/trial/a-study-of-bimagrumab-alone-ly3985863-and-bimagrumab-with-92b2be4e-8b3e-4b77-8ac5-3e28d83bafde
> Record changed: 2026-11-04

# A Study of Bimagrumab Alone (LY3985863) and Bimagrumab With Tirzepatide (LY900042) in Healthy Participants

NCT06890611

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

Phase

Phase 1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

Recruitment status

Completed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

Participants

125

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

Lead sponsor

Eli Lilly and Company

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

Start date

2025-03-25

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

Number of sites

1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

## Title and summary

**Summary**

The main purpose of this study is to evaluate the body concentration of different forms of bimagrumab, administered alone or with tirzepatide. Participation in the study will last about 4.5 months, including screening and follow-up.

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Short title**

A Study of Bimagrumab Alone (LY3985863) and Bimagrumab With Tirzepatide (LY900042) in Healthy Participants

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Official title**

A Phase 1, Relative Bioavailability Study of Bimagrumab (LY3985863) Test and Reference Materials, and Bimagrumab Test Material Coadministration and Coformulation With Tirzepatide (LY900042), in Healthy Participants

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

## Status and phase

**Control arm**

Open label

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Registry reports results**

No

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Listing at source**

Listed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Recruitment status**

Completed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Phase**

Phase 1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Study type**

Interventional

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

## Dates

**Completion date**

2025-09-26

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**First posted**

2025-03-24

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Registry last updated**

2025-10-09

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Primary completion date**

2025-09-26

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Start date**

2025-03-25

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

## Size and sites

**Actual participants**

125

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Participants**

125

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Participant count basis**

Actual

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Protocol amendments**

1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Number of sites**

1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

## Sponsor and oversight

**Data monitoring committee**

No

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Registry sponsor category**

Industry

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Lead sponsor**

Eli Lilly and Company

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Source registry**

ClinicalTrials.gov

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

## Identifiers

**Registry ID**

NCT06890611

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**ClinicalTrials.gov ID**

NCT06890611

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

**Registry record**

Open registry record

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

## Study design

**Allocation**

Randomised

**Model**

Parallel groups

**Purpose**

Basic science

**Masking**

No masking

Sources for study design

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

## Outcomes

### Primary outcomes

1. Pharmacokinetics (PK): Maximum Concentration (Cmax) of Bimagrumab Test Material  
Timeframe: Predose through Week 13
2. PK: Cmax of Bimagrumab Reference Material  
Timeframe: Predose through Week 13
3. PK: Cmax of Bimagrumab Coadministered with Tirzepatide  
Timeframe: Predose through Week 13
4. PK: Cmax of Tirzepatide Coadministered with Bimagrumab  
Timeframe: Predose through Week 16
5. PK: Cmax of Bimagrumab Coformulated with Tirzepatide  
Timeframe: Predose through Week 16
6. PK: Cmax of Tirzepatide Coformulated with Bimagrumab  
Timeframe: Predose through Week 16
7. PK: Area Under the Curve from Zero to Infinity AUC (AUC(0-∞)) of Bimagrumab Test Material  
Timeframe: Predose through Week 13
8. PK: AUC(0-∞) of Bimagrumab Reference Material  
Timeframe: Predose through Week 13
9. PK: AUC(0-∞) of Bimagrumab Coadministered with Tirzepatide  
Timeframe: Predose through Week 13
10. PK: AUC(0-∞) of Tirzepatide Coadministered with Bimagrumab  
Timeframe: Predose through Week 16
11. PK: AUC(0-∞) of Bimagrumab Coformulated with Tirzepatide  
Timeframe: Predose through Week 16
12. PK: AUC(0-∞) of Tirzepatide Coformulated with Bimagrumab  
Timeframe: Predose through Week 16

Sources for outcomes

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

## Eligibility

**Sex**

All

**Age groups**

Adults

**Minimum age**

18 Years

**Maximum age**

64 Years

**Healthy volunteers**

Yes

### Inclusion criteria

- Are considered healthy as determined by medical evaluation including medical history and physical examination
- Have a body mass index (BMI) within the range of 22.0 to 30.0 kilograms per square meter (kg/m2), inclusive

### Exclusion criteria

- Have current or a history of pancreatitis or hepatitis
- Have a self-reported increase or decrease in body weight, greater than 5 kilograms (kg), within 3 months prior to screening
- Have uncontrolled high blood pressure
- Have taken medications or alternative remedies to promote weight loss within 3 months prior to screening

Sources for eligibility

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

## Sites

- Fortrea Clinical Research UnitDallas, United States

Sources for sites

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

## References

### Other registry identifiers

- J4Z-MC-GIDG

Sources for references

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06890611)

## Related records

### Drugs (2)

- [Bimagrumab](https://trialight.com/data/asset/bimagrumab-0a25ca88-023e-46fb-a721-cf5c435758d7.md)
- [Tirzepatide](https://trialight.com/data/asset/tirzepatide-eed85871-eb9c-4712-9102-badfdd99a720.md)

### Lead sponsors (1)

- [Eli Lilly and Company](https://trialight.com/data/company/eli-lilly-and-company-9da7efcc-bafe-4b95-b30b-e87a97770db7.md)

### Targets (4)

- [ACVR2A](https://trialight.com/data/target/acvr2a-49c643d3-7803-59e6-9f53-b13ec1467b7a.md)
- [ACVR2B](https://trialight.com/data/target/acvr2b-cb4a236d-550a-5b3c-be5a-939d03d0fc1e.md)
- [GIPR](https://trialight.com/data/target/gipr-5b65dd73-9875-5aca-be7a-5469a7290f0c.md)
- [GLP1R](https://trialight.com/data/target/glp1r-c31cc749-2d8a-54a9-9dab-84f5ee5d1742.md)

---

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