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A Trial to Assess the Effect of Kidney Impairment on How AMG 133 is Absorbed, Broken Down, and Eliminated by the Body

A Phase 1, Open-label, Single-dose, Parallel Group Study to Assess the Pharmacokinetics, Safety, and Tolerability of AMG 133 in Participants With Normal Renal Function and Participants With Various Degrees of Renal Impairment

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07429045
Enrollment
44
Registered
2026-02-24
Start date
2025-03-11
Completion date
2025-11-21
Last updated
2026-02-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Overweight and Obesity

Keywords

Obesity, AMG 133, Maridebart cafraglutide, MariTide

Brief summary

The primary objective of this trial is to evaluate the pharmacokinetics of a single subcutaneous (SC) dose of AMG 133 in participants with various degrees of renal impairment compared to participants with normal renal function.

Interventions

Participants will receive one dose of AMG 133 as a SC injection.

Sponsors

Amgen
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

All Participants in Groups 1 to 5 1. Male or female, of any race, between 18 and 75 years of age, inclusive. a. Females must not be pregnant or lactating. 2. Body mass index \> 22.0 kg/m2. 3. Eligible participants classified based on eGFR at screening and established need for renal replacement therapy as applicable. Participants with Normal Renal Function 4. In good health as determined by no clinically significant findings from medical history, physical examination, vital signs measurements, 12-lead ECGs, and clinical laboratory evaluations. Participants with Renal Impairment 5. Participants with renal impairment may have medical findings consistent with their renal dysfunction.

Exclusion criteria

All Participants in Groups 1 to 5 1. History or evidence of clinically significant disorder, condition, or disease not otherwise excluded that would pose a risk to participant safety or interfere with the study evaluation, procedures, or completion. 2. History or evidence of endocrine disorder. 3. History of acute or chronic pancreatitis within 1 year prior to check-in, or elevation in serum lipase/amylase (\> 2 x ULN) at screening, or fasting serum triglyceride level of \> 500 mg/dL at screening. 4. Personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia type 2. 5. History of hypersensitivity, intolerance, or allergy to AMG 133 or its ingredients or to related/similar compounds. 6. Active liver disease or hepatic dysfunction. 7. Clinically significant hyperkalemia. 8. Current use or prior use of any GLP-1R agonist, or GIPR agonist or antagonist within the past 3 months prior to check-in. 9. Participant has received a dose of an investigational drug within the past 30 days or 5 half-lives prior to AMG 133 dosing. 10. Have previously completed or withdrawn from this study or any other study investigating AMG 133 or have previously received the investigational product. Participants with Normal Renal Function (Group 1) 11. History of active diabetes or evidence based on hemoglobin A1C of \> 6.5% (\> 48 mmol/mol). 12. Use of any over-the-counter or prescription medications within 30 days or 5 half-lives (whichever is longer) before check-in. 13. A history of renal disease or renal injury as indicated by medical history or an abnormal renal function profile. Participants with Renal Impairment (Groups 2 to 5) 14. Participants who have a current, functioning organ transplant and/or are on immunosuppressants. 15. Participants on the national transplant list who anticipate receiving an organ transplant within 6 months of check-in. 16. History or current diagnosis of uncontrolled or significant cardiac disease indicative of a significant risk of safety for participation in the study. 17. Use of any over-the-counter or prescription medications within 30 days or 5 half-lives before check-in. 18. History of poorly controlled diabetes or evidence based on hemoglobin A1C of \> 11% (\> 97 mmol/mol). 19. Active malignancy of any type. 20. A change in renal disease status within 30 days of screening.

Design outcomes

Primary

MeasureTime frame
Maximum Observed Concentration (Cmax) of AMG 133Up to Day 120
Area Under the Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUClast) of AMG 133Up to Day 120
AUC From Time 0 Extrapolated to Infinity (AUCinf) of AMG 133Up to Day 120

Secondary

MeasureTime frame
Number of Participants who Experienced Treatment-emergent Adverse Events (TEAEs)Day 1 to Day 120
Number of Participants who Experienced Serious AEs (SAEs)Screening to Day 120 (up to 148 days)
Number of Participants with Positive Anti-AMG 133 Antibody FormationUp to Day 120

Countries

United States

Contacts

STUDY_DIRECTORMD

Amgen

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 25, 2026