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Monoclonal Antibodies

AMG 133 for Obesity With or Without Type 2 Diabetes

Phase 2
Waitlist Available
Research Sponsored by Amgen
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
History of at least one unsuccessful dietary effort to lose body weight.
Age ≥18 years at the time of signing informed consent.
Timeline
Screening 3 weeks
Treatment Varies
Follow Up baseline and week 52

Summary

This trial is testing AMG 133, a new drug, to see if it helps people lose weight and keep it off. It targets overweight or obese individuals, both with and without Type 2 diabetes. The drug may work by affecting metabolism or appetite.

Who is the study for?
Adults over 18 with obesity or overweight, who've tried and failed to lose weight through diet. Cohort A includes those without diabetes; Cohort B includes those with Type 2 diabetes, managed by diet/exercise or certain medications. Excluded are individuals with weight changes >5kg in the last 3 months, specific psychiatric disorders, history of pancreatitis, or genetic conditions like MEN-2.
What is being tested?
The trial is testing three doses of AMG 133 against a placebo to see which dose is best at helping adults lose weight and maintain that loss over a year. It's divided into two groups: one for people just overweight/obese (Cohort A) and another for those also dealing with Type 2 diabetes (Cohort B).
What are the potential side effects?
While not specified here, similar drugs often cause digestive issues like nausea or diarrhea, potential low blood sugar in diabetics, injection site reactions if it's an injectable drug, and sometimes headaches or fatigue.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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You have tried and failed to lose weight through dieting at least once.
Select...
I am 18 years old or older.
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My BMI is over 30, or it's over 27 and I have a condition like high blood pressure or heart disease.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~baseline and week 52
This trial's timeline: 3 weeks for screening, Varies for treatment, and baseline and week 52 for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Secondary study objectives
Change from Baseline to Week 52 in Body Fat Mass Using Dual-energy X-ray Absorptiometry (DEXA)
Change from Baseline to Week 52 in Lean Body Mass Using DEXA

Trial Design

4Treatment groups
Experimental Treatment
Placebo Group
Group I: Cohort B: Maridebart CafraglutideExperimental Treatment2 Interventions
Part 1: Cohort B will consist of participants with a diagnosis of type 2 diabetes mellitus. Participants will be randomized to receive maridebart cafraglutide or placebo in 1 of 4 dose cohorts. Participants will then have the option to begin part 2 if they meet the entry criteria. Part 2: Participants that continue into part 2 will be re-randomized to receive maridebart cafraglutide or Placebo in 1 of 4 dose cohorts.
Group II: Cohort A: Maridebart CafraglutideExperimental Treatment2 Interventions
Part 1: Cohort A will consist of participants without a diagnosis of type 1 or type 2 diabetes mellitus. Participants will be randomized to receive maridebart cafraglutide or placebo in 1 of 7 dose cohorts. Participants will then have the option to begin part 2 if they meet the entry criteria. Part 2: Participants that continue into part 2 will be re-randomized to receive maridebart cafraglutide or Placebo in 1 of 4 dose cohorts.
Group III: Cohort A: PlaceboPlacebo Group2 Interventions
Part 1: Cohort A will consist of participants without a diagnosis of type 1 or type 2 diabetes mellitus. Participants will be randomized to receive maridebart cafraglutide or placebo in 1 of 7 dose cohorts . Participants will then have the option to begin part 2 if they meet the entry criteria. Part 2: Participants that continue into part 2 will be re-randomized to receive maridebart cafraglutide or Placebo in 1 of 4 dose cohorts.
Group IV: Cohort B: PlaceboPlacebo Group2 Interventions
Part 1: Cohort B will consist of participants with a diagnosis of type 2 diabetes mellitus. Participants will be randomized to receive maridebart cafraglutide or placebo in 1 of 4 dose cohorts. Participants will then have the option to begin part 2 if they meet the entry criteria. Part 2: Participants that continue into part 2 will be re-randomized to receive maridebart cafraglutide or Placebo in 1 of 4 dose cohorts.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Maridebart Cafraglutide
2024
Completed Phase 1
~20
Placebo
1995
Completed Phase 3
~2670

Research Highlights

Information in this section is not a recommendation. We encourage patients to speak with their healthcare team when evaluating any treatment decision.
Mechanism Of Action
Side Effect Profile
Prior Approvals
Other Research
Incretin-based therapies, such as GLP-1 receptor agonists and DPP-4 inhibitors, enhance insulin secretion and inhibit glucagon release in response to meals, improving glycemic control and promoting weight loss. SGLT2 inhibitors reduce blood glucose by increasing urinary glucose excretion, which also aids in weight loss and lowers blood pressure. These mechanisms are crucial for Type 2 Diabetes patients as they address both hyperglycemia and obesity, common comorbidities that exacerbate the disease. Effective weight management and glycemic control can significantly reduce the risk of diabetes-related complications and improve overall health outcomes.
Effect of electroacupuncture on glucose and lipid metabolism in type 2 diabetes: A protocol for systematic review and meta-analysis.Incretin therapies: highlighting common features and differences in the modes of action of glucagon-like peptide-1 receptor agonists and dipeptidyl peptidase-4 inhibitors.Potential for combination of dipeptidyl peptidase-4 inhibitors and sodium-glucose co-transporter-2 inhibitors for the treatment of type 2 diabetes.

Find a Location

Who is running the clinical trial?

AmgenLead Sponsor
1,434 Previous Clinical Trials
1,395,244 Total Patients Enrolled
10 Trials studying Obesity
569 Patients Enrolled for Obesity
MDStudy DirectorAmgen
972 Previous Clinical Trials
939,416 Total Patients Enrolled
6 Trials studying Obesity
385 Patients Enrolled for Obesity

Media Library

AMG 133 (Monoclonal Antibodies) Clinical Trial Eligibility Overview. Trial Name: NCT05669599 — Phase 2
Obesity Research Study Groups: Cohort A: Maridebart Cafraglutide, Cohort B: Maridebart Cafraglutide, Cohort A: Placebo, Cohort B: Placebo
Obesity Clinical Trial 2023: AMG 133 Highlights & Side Effects. Trial Name: NCT05669599 — Phase 2
AMG 133 (Monoclonal Antibodies) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05669599 — Phase 2
Obesity Patient Testimony for trial: Trial Name: NCT05669599 — Phase 2
~209 spots leftby Nov 2025