A Phase 2b, Study of Linsitinib in Subjects With Active, Moderate to Severe Thyroid Eye Disease (TED)

Overview

About this study

The purpose of this study is to evaluate the safety and tolerability of linsitinib. Study drug is administered twice daily for six-months (24 weeks) in approximately 75 men and women (25 of which will be randomized to placebo) with active, moderate-to-severe Thyroid Eye Disease (TED).
 

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

- Clinical diagnosis of Graves' Disease and/or autoimmune Hashimoto's thyroiditis
associated with active moderate to severe TED with a CAS ≥ 4 (on the 7- item scale)
for the most severely affected eye (primary study eye) at Screening and Baseline

- Confirmed active TED (not sight-threatening but has an appreciable impact on daily
life, with onset (as determined by patient records) within 12 months prior to the
Baseline visit and usually associated with one or more of the following: lid
retraction ≥ 2 mm, moderate or severe soft tissue involvement, exophthalmos ≥ 3 mm
above normal for race and gender, and/or inconstant or constant diplopia.

- Subjects must be euthyroid with the participant's baseline disease under control or
have mild hypo- or hyperthyroidism (defined as free thyroxine [FT4] and free
triiodothyronine levels [FT3] < 50% above or below the normal limits) at Screening.

- Does not require immediate ophthalmic surgery, radiotherapy to orbits or other
ophthalmological intervention at the time of Screening and is not planning for any
such treatment during the course of the study.

Exclusion Criteria:

- Decreased best corrected visual acuity due to optic neuropathy as defined by a
decrease in vision of 2 lines on the Snellen chart, new visual field defect, or color
defect secondary to optic nerve involvement within the last 6 months.

- Corneal decompensation unresponsive to medical management.

- Previous orbital irradiation or orbital surgery.

- Any glucocorticoid use (intravenous [IV] or oral) with a cumulative dose equivalent to
>= 1g of methylprednisolone or equivalent for the treatment of TED within 3 months of
Screening.

- Prior IGF-1R inhibitor therapy for any condition.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Eligibility last updated 2/7/23. Questions regarding updates should be directed to the study team contact.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

Marius Stan, M.D.

Closed for enrollment

More information

Publications

Publications are currently not available
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CLS-20537300

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