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An Efficacy, Safety, and Tolerability Study of VRDN-003 in Participants with Chronic Thyroid Eye Disease (TED)

Phase 3
Recruiting
Conditions
Thyroid Eye Disease
Interventions
Drug: VRDN-003
Drug: Placebo
Registration Number
NCT06625398
Lead Sponsor
Viridian Therapeutics, Inc.
Brief Summary

This is a clinical trial assessing the efficacy, safety, and tolerability of an investigational drug, VRDN-003, in participants with chronic Thyroid Eye Disease (TED).

Detailed Description

This is a randomized (meaning participants will be assigned to study arms by chance), double-masked (meaning study doctor and participant will not know which study arm participant is assigned to), placebo-controlled study that will include participants with chronic TED. The key objectives of this study are to determine if VRDN-003 is efficacious, safe and tolerable when administered as subcutaneous/SC injections every 4 weeks or every 8 weeks compared to placebo in participants with chronic TED.

Participants who do not have a meaningful response at Week 24 may be eligible to receive additional subcutaneous injections of VRDN-003.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
126
Inclusion Criteria
  • Must have moderate to severe chronic TED, with any CAS (0-7) on the 7-item scale, and with documented evidence of ocular symptoms or signs that began greater than 15 months prior to screening
  • Must agree to use highly effective contraception as specified in the protocol
  • Female TED participants must have a negative serum pregnancy test at screening
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Exclusion Criteria
  • Must not have received prior treatment with another anti-IGF-1R therapy
  • Must not have received systemic corticosteroids for any condition, including TED, within 2 weeks prior to first dose.
  • Must not have received other immunosuppressive drugs or another investigational agent for any condition, including TED, or any other therapy for TED, within 8 weeks prior to first dose
  • Must not have received radioactive iodine (RAI) treatment within 8 weeks prior to first dose
  • Must not have had previous orbital irradiation or decompression surgery for TED to the study eye's orbit
  • Must not have a pre-existing ophthalmic condition in the study eye which in the study doctor's opinion, would interfere with interpretation of study results
  • Must not have abnormal hearing test before first dose. Must also not have a history of ear conditions considered significant by study doctor
  • Must not have a history of inflammatory bowel disease
  • Female TED participants must not be pregnant or breastfeeding

NOTE: There are additional eligibility criteria for non-responders who may receive additional injections of VRDN-003. These are described in the protocol.

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Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
VRDN-003 every 8 weeksVRDN-0033 subcutaneous administrations of VRDN-003 and 3 subcutaneous administrations of placebo
VRDN-003 every 8 weeksPlacebo3 subcutaneous administrations of VRDN-003 and 3 subcutaneous administrations of placebo
VRDN-003 every 4 weeksVRDN-0036 subcutaneous administrations of VRDN-003
Placebo every 4 weeksPlacebo6 subcutaneous administrations of placebo
Primary Outcome Measures
NameTimeMethod
Title: Proptosis Responder Rate in the study eyeAt Week 24

Description: Proportion of participants with a ≥2 mm reduction from baseline in proptosis in the study eye \[without a corresponding increase of ≥2 mm in the fellow eye\]

Secondary Outcome Measures
NameTimeMethod
Change from baseline in proptosis in the study eyeAt Week 24

Change from baseline in proptosis in the study eye

Clinical Activity Responder Rate in the study eyeAt Week 24

Description: Clinical Activity Responder Rate in the study eye (i.e., no worsening in CAS from baseline in the study eye \[without a corresponding increase of ≥2 points in the fellow eye\])

Overall Responder Rate in the study eyeAt Week 24

Proportion of participants with a ≥2 mm reduction from baseline in proptosis in the study eye \[without a corresponding increase of ≥2 mm in the fellow eye\] AND no worsening in CAS from baseline in the study eye \[without a corresponding increase of ≥2 points in the fellow eye\]

Diplopia Responder Rate for participants with baseline Diplopia Score greater than 0At Week 24

Proportion of participants with a reduction in Diplopia Score of ≥1 from baseline (for participants with baseline Diplopia Score greater than 0)

Diplopia Resolution Rate for participants with baseline Diplopia Score greater than 0At Week 24

Proportion of participants with a reduction in Diplopia Score to 0 from baseline (for participants with baseline Diplopia Score greater than 0)

Trial Locations

Locations (17)

Marvel Clinical Research

🇺🇸

Huntington Beach, California, United States

United Medical Research Institute

🇺🇸

Inglewood, California, United States

Pasadena Clinical Trials

🇺🇸

Pasadena, California, United States

Ilumina Medical Research

🇺🇸

Kissimmee, Florida, United States

Anmed Health Services LLC

🇺🇸

Miami, Florida, United States

Agile Clinical Research Trials, LLC

🇺🇸

Atlanta, Georgia, United States

Gulf Coast Clinical Trials

🇺🇸

Houston, Texas, United States

Advancing Research International, LLC

🇺🇸

Los Angeles, California, United States

A.P.J. Office

🇺🇸

Newport Beach, California, United States

Senta Clinic

🇺🇸

San Diego, California, United States

Vision Medical Research

🇺🇸

Orland Park, Illinois, United States

Opthalmic Consultants of Boston

🇺🇸

East Weymouth, Massachusetts, United States

Fraser Eye Care Center

🇺🇸

Fraser, Michigan, United States

Kahana Oculoplastic & Orbital Surgery

🇺🇸

Livonia, Michigan, United States

University Health

🇺🇸

Kansas City, Missouri, United States

S.L. Office

🇺🇸

Las Vegas, Nevada, United States

Neuro-Eye Clinical Trials

🇺🇸

Houston, Texas, United States

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