An Open-label, Rollover Trial to Evaluate the Efficacy and Safety of AMG 732 in Participants With Thyroid Eye Disease

NCT07438405 | Recruiting Phase 2 FDA Drug

• 1 other identifier: 20230294
• Study Type: interventional
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

The main objective of this trial is to assess the efficacy of AMG 732 in participants with thyroid eye disease (TED) who are defined as primary nonresponders or relapsed during the safety follow-up in the parent trial (NCT06401044).

Conditions

Thyroid Eye Disease

Keywords

Thyroid eye disease; AMG 732

Outcome Measures

Primary Outcomes (1)

• Number of Participants who are Proptosis Responders in the Trial Eye at Week 24 in Participants with TED who are Defined as Primary Nonresponders or Relapsed During the Safety Follow-up in the Parent Trial

  Responders are defined as participants with a ≥ 2 mm reduction from baseline in the trial eye without deterioration (≥ 2 mm increase) of proptosis in the fellow eye.

  Week 24

Secondary Outcomes (11)

• Change from Baseline at Week 24 in Proptosis Measurement by an Exophthalmometer in the Trial Eye in Participants with TED who are Defined as Primary Nonresponders or Relapsed During the Safety Follow-up in the Parent Trial

  Baseline and Week 24

• Number of Participants who are Proptosis Responders in the Trial Eye at Week 24 in Participants with TED who had Relapse after Achieving Proptosis Response in the Parent Trial

  Week 24

• Change from Baseline at Week 24 in Proptosis Measurement by an Exophthalmometer in the Trial Eye in Participants with TED who had Relapse after Achieving Proptosis Response in the Parent Trial

  Baseline and Week 24

• Number of Participants who are Proptosis Responders in the Trial Eye at Week 24 in Participants with TED who were Defined as Primary Nonresponders in the Parent Trial

  Week 24

• Change from Baseline at Week 24 in Proptosis Measurement by an Exophthalmometer in the Trial Eye in Participants with TED who were Defined as Primary Nonresponders in the Parent Trial

  Baseline and Week 24

Study Arms (1)

AMG 732

EXPERIMENTAL

Participants will receive AMG 732 subcutaneously (SC)

Drug: AMG 732

Interventions

AMG 732 DRUG

AMG 732 will be administered SC.

AMG 732

Eligibility Criteria

• Age: 18 Years - 99 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.
• Age ≥ 18 years at the time of signing informed consent for parent trial.
• Moderate-to-severe TED at the time of enrollment in parent trial and does not require immediate surgical ophthalmological intervention and is not planning corrective surgery/irradiation during the rollover trial.
• Any worsening in thyroid status should be corrected to maintain euthyroid status for the entire rollover trial.
• Participants must use protocol-specified contraception during treatment and for an additional 6 months after the last dose of trial intervention.
• Participants with TED who completed Amgen-sponsored clinical trial of AMG 732.

You may not qualify if:

• Prior orbital irradiation or decompression in the study eye.
• Prior adult strabismus surgery.
• Use of any steroid (intravenous, oral, or injected) and steroid eye drops or other non-steroid immunosuppressive agent, monoclonal antibody except the trial drug in parent trial within a protocol-specified number of months prior to the first injection of study drug.
• Glycated hemoglobin (HbA1c) \> 6.5% and/or fasting glucose levels\> 126 mg/dL (\> 7 mmol/L) at screening.
• Malignant condition in the past 5 years or major surgery within 8 weeks or plans to have an elective surgery from screening through end of study.
• Active liver or kidney disfunction at screening.
• Positive test for hepatitis B/C or Human immunodeficiency virus (HIV) serology at screening.
• Known hypersensitivity to teprotumumab, AMG 732 or any other monoclonal antibody products.
• Participants have had an adverse event that is considered related to AMG 732 which required study drug interruption/discontinuation in the parent study
• Donated blood, or had significant blood loss, or received a transfusion of any blood or blood products within 60 days prior to day 1 dosing or received a plasma donation within 7 days prior to day 1 dosing.
• Use of any steroid or other non-steroid immunosuppressive agent, monoclonal antibody, within 3 months prior to the first injection of study drug.
• History or existing inflammatory bowel disease (ulcerative colitis or Crohn's disease).

Sponsors & Collaborators

• Amgen: lead

Study Sites (1)

Applied Research Center of Arkansas

Little Rock, Arkansas, 72205, United States

RECRUITING

Related Links

• AmgenTrials clinical trials website

MeSH Terms

Conditions

Graves Ophthalmopathy

Condition Hierarchy (Ancestors)

Eye Diseases, Hereditary; Eye Diseases; Graves Disease; Exophthalmos; Orbital Diseases; Genetic Diseases, Inborn; Congenital, Hereditary, and Neonatal Diseases and Abnormalities; Goiter; Thyroid Diseases; Endocrine System Diseases; Hyperthyroidism; Autoimmune Diseases; Immune System Diseases

Study Officials

• MD

  Amgen

  STUDY DIRECTOR

Central Study Contacts

Amgen Call Center

CONTACT

866-572-6436; medinfo@amgen.com

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: February 23, 2026
• First Posted: February 27, 2026
• Study Start: May 7, 2026
• Primary Completion (Estimated): January 29, 2028
• Study Completion (Estimated): July 14, 2028
• Last Updated: May 26, 2026

Record last verified: 2026-05

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, SAP, ICF, CSR
• Time Frame: Data sharing requests relating to this trial will be considered beginning 18 months after the trial has ended and either 1) the product and indication (or other new use) have been granted marketing authorization in both the US and Europe, or 2) clinical development for the product and/or indication discontinues and the data will not be submitted to regulatory authorities. There is no end date for eligibility to submit a data sharing request for this trial.
• Access Criteria: Qualified researchers may submit a request containing the research objectives, the Amgen product(s) and Amgen trial/ trials in scope, endpoints/outcomes of interest, statistical analysis plan, data requirements, publication plan, and qualifications of the researcher(s). In general, Amgen does not grant external requests for individual patient data for the purpose of re-evaluating safety and efficacy issues already addressed in the product labelling. Requests are reviewed by a committee of internal advisors, and if not approved, may be further arbitrated by a Data Sharing Independent Review Panel. Upon approval, information necessary to address the research question will be provided under the terms of a data sharing agreement. This may include anonymized individual patient data and/or available supporting documents, containing fragments of analysis code where provided in analysis specifications. Further details are available at the URL below.

Locations

US (1)