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ObesityPhase 1NCT04199351

Single and Multiple Ascending Dose Study of AMG 171 in Subjects With Obesity

A Phase 1 study testing AMG 171 in people with Obesity, run by Amgen at 3 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

To assess the safety and tolerability of AMG 171 as single or multiple doses in subjects with obesity Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Obesity
What is being tested?
AMG 171
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
60 participants
Where
3 sitesUnited States
Study dates
13 Dec 2019to 10 Sep 2021
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Males and females with ages between 18 and 65 years old, inclusive
  • Except for obesity, otherwise healthy
  • Body mass index (BMI) greater than or equal to 30.0 kg/m2 and less than or equal to 40.0 kg/m2 at screening
  • Other Inclusion criteria may apply

Who cannot join

  • Currently receiving treatment in another investigational device or drug study
  • Women of childbearing potential
  • History or evidence of a clinically significant disorder, condition or disease that would pose a risk to subject safety or interfere with the study evaluation, procedures or completion
  • Other Exclusion criteria may apply

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • Anaheim Clinical Trials

    Anaheim, California, 92801

  • Clinical Pharmacology of Miami, LLC

    Miami, Florida, 33014

  • Orange County Research Center

    Tustin, California, 92780

Other trials in United States

About this study

Official title: A Phase 1, Randomized, Double-blind, Placebo-controlled, Single and Multiple Ascending Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of AMG 171 in Subjects With Obesity

To assess the safety and tolerability of AMG 171 as single or multiple doses in subjects with obesity

Conditions
Obesity
Being tested
AMG 171, Placebo
Keywords
Obesity
Medical subject headings
Obesity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AMG 171Drug

    2 SAD cohorts of 8 subjects per cohort randomized 3:1 in Part A; 1 cohort of 8 subjects 3:1 ratio in Part B; and 24 subjects enrolled into 1 of 3 cohorts with 8 subjects randomized to receive 2 to 3 consecutive doses (titration) 3:1 ratio in Part C.

  • PlaceboDrug

    AMG 171 placebo

Study groups in NCT04199351
Study groupRoleWhat they receive
Part AExperimentalAMG 171 or placebo, 2 SAD cohorts
Receives: Drug: AMG 171; Drug: Placebo
Part BExperimentalAMG 171 or placebo, 1 MAD cohort
Receives: Drug: AMG 171; Drug: Placebo
Part CExperimentalAMG 171 or placebo, 3 titration cohorts
Receives: Drug: AMG 171; Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants Who Experienced Treatment-Emergent Adverse Events (TEAEs)

    An adverse event (AE) was any untoward medical occurrence in a clinical study participant irrespective of a causal relationship with study treatment. A serious AE (SAE) was an AE meeting at least 1 of the following serious criteria: fatal, life-threatening, required in-patient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability; congenital anomaly/birth defect; other medically important serious event. Clinically significant changes from baseline in laboratory safety tests, vital sign assessments, and 12-lead electrocardiogram assessments were included as TEAEs.

    Measured: From first dose of IP to end of study, up to Day 207

Secondary outcomes (8)
  1. Maximum Observed Serum Concentration (Cmax) for AMG 171: SAD Cohorts 1 and 1b

    Serum concentrations of AMG 171 were determined using a validated assay. Noncompartmental analysis was performed for estimation of pharmacokinetic (PK) parameters. Concentrations below the lower limit of quantification (LLOQ) (50.0 ng/mL) were set to zero before data analysis.

    Measured: Cohorts 1 and 1b: pre-dose Day 1; 1, 2, 4, and 8 hours post-dose Day 1, Days 2 up to Day 120

  2. Cmax for AMG 171: MAD Cohorts 2 - 5

    Serum concentrations of AMG 171 were determined using a validated assay. Noncompartmental analysis was performed for estimation of PK parameters. Concentrations below the LLOQ (50.0 ng/mL) were set to zero before data analysis.

    Measured: Cohort 2: pre-dose Days 1, 15, 29, 43, 57, 71; post-dose Days 5 up to 207; Cohort 3: pre-dose Days 1, 15; post-dose Days 2 up to 85; Cohort 4: pre-dose Days 1, 15, 29; post-dose Days 2 up to 113; Cohort 5: pre-dose Days 1, 8; post-dose Days 2 up to 85

  3. Time of Cmax (Tmax) for AMG 171: SAD Cohorts 1 and 1b

    Serum concentrations of AMG 171 were determined using a validated assay. Noncompartmental analysis was performed for estimation of PK parameters. Concentrations below the LLOQ (50.0 ng/mL) were set to zero before data analysis.

    Measured: Cohorts 1 and 1b: pre-dose Day 1; 1, 2, 4, and 8 hours post-dose Day 1, Days 2 up to Day 120

  4. Tmax for AMG 171: MAD Cohorts 2 - 5

    Serum concentrations of AMG 171 were determined using a validated assay. Noncompartmental analysis was performed for estimation of PK parameters. Concentrations below the LLOQ (50.0 ng/mL) were set to zero before data analysis.

    Measured: Cohort 2: pre-dose Days 1, 15, 29, 43, 57, 71; post-dose Days 5 up to 207; Cohort 3: pre-dose Days 1, 15; post-dose Days 2 up to 85; Cohort 4: pre-dose Days 1, 15, 29; post-dose Days 2 up to 113; Cohort 5: pre-dose Days 1, 8; post-dose Days 2 up to 85

  5. Area Under the Plasma Concentration-time Curve (AUC) From Time 0 to Infinity (AUCinf) for AMG 171: SAD Cohorts 1 and 1b

    Serum concentrations of AMG 171 were determined using a validated assay. Noncompartmental analysis was performed for estimation of PK parameters. Concentrations below the LLOQ (50.0 ng/mL) were set to zero before data analysis.

    Measured: Cohorts 1 and 1b: pre-dose Day 1; 1, 2, 4, and 8 hours post-dose Day 1, Days 2 up to Day 120

  6. AUC From Time 0 to 14 Days (AUC0-14) for AMG 171: MAD Cohorts 2 - 4

    Serum concentrations of AMG 171 were determined using a validated assay. Noncompartmental analysis was performed for estimation of PK parameters. Concentrations below the LLOQ (50.0 ng/mL) were set to zero before data analysis.

    Measured: Cohort 2: pre-dose Days 1, 15, 29, 43, 57, 71; post-dose Days 5 up to 207; Cohort 3: pre-dose Days 1, 15; post-dose Days 2 up to 85; Cohort 4: pre-dose Days 1, 15, 29; post-dose Days 2 up to 113

  7. AUC From Time 0 to 7 Days (AUC0-7) for AMG 171: MAD Cohort 5

    Serum concentrations of AMG 171 were determined using a validated assay. Noncompartmental analysis was performed for estimation of PK parameters. Concentrations below the LLOQ (50.0 ng/mL) were set to zero before data analysis.

    Measured: Cohort 5: pre-dose Days 1, 8; post-dose Days 2 up to 85

  8. Number of Participants With Anti-AMG 171 Antibodies

    Serum samples were tested for binding and neutralizing antibodies against human Growth Differentiation Factor 15. Participants with transiently positive for binding or neutralizing antibodies had a negative result at the participant's last time point tested.

    bAb = binding antibody; nAb = neutralizing antibody; +ve = positive; -ve = negative; BL = baseline.

    Measured: Cohorts 1 and 1b: Day 1 pre-dose, Days 15, 29, 120; Cohort 2: Days 1, 29, 57 pre-dose, Days 15, 85, 207; Cohort 3: Days 1, 15 pre-dose, Days 29, 57, 85; Cohort 4: Days 1, 15, 29 pre-dose, Days 43, 85, 113; Cohort 5: Days 1, 8 pre-dose, Days 29, 57, 85

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Dec 2019
  2. Study start13 Dec 2019
  3. Primary completion10 Sep 2021
  4. Study completion10 Sep 2021

Why it stopped: Amgen determined the totality of the data does not support continuation of AMG 171 development program for treatment of Obesity. No safety concerns identified.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Sequential
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04199351
Sponsor's protocol ID
20180224
Status last verified
Apr 2024
First submitted
12 Dec 2019
Last updated
19 Sep 2024
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing AMG 171 in people with Obesity, run by Amgen at 3 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 19 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 19 Sep 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants Who Experienced Treatment-Emergent Adverse Events (TEAEs) (time frame: From first dose of IP to end of study, up to Day 207). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Sep 2024.

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