TEPEZZA: a nonsurgical treatment proven to significantly reduce proptosis, regardless of disease activity or duration1-3
Phase 3
Patients with active TED studied in a 24-week,
randomized, double-masked, placebo-controlled trial2
*Euthyroid or with mild hypo- or hyperthyroidism defined as free thyroxine (FT4) and free triiodothyronine (FT3) levels <50% above or below the normal limits (every effort should be made to correct the mild hypo- or hyperthyroidism promptly).4
Patients with chronic TED studied in a 24-week, randomized, double-masked, placebo-controlled trial1
*Euthyroid or with mild hypo- or hyperthyroidism defined as free thyroxine (FT4) and free triiodothyronine (FT3) levels <50% above or below the normal limits (every effort should be made to correct the mild hypo- or hyperthyroidism promptly).4
*A proptosis responder was defined as having a ≥2-mm reduction in proptosis from baseline in the study eye without deterioration (≥2-mm increase in proptosis) in the non-study eye.
TEPEZZA Placebo
Phase 4
Patients with active TED studied in a 24-week, randomized, double-masked, placebo-controlled trial2
*Euthyroid or with mild hypo- or hyperthyroidism defined as free thyroxine (FT4) and free triiodothyronine (FT3) levels <50% above or below the normal limits (every effort should be made to correct the mild hypo- or hyperthyroidism promptly).4
Patients with chronic TED studied in a 24-week, randomized, double-masked, placebo-controlled trial1
*Euthyroid or with mild hypo- or hyperthyroidism defined as free thyroxine (FT4) and free triiodothyronine (FT3) levels <50% above or below the normal limits (every effort should be made to correct the mild hypo- or hyperthyroidism promptly).4
*A proptosis responder was defined as having a ≥2-mm reduction in proptosis from baseline in the study eye without deterioration (≥2-mm increase in proptosis) in the non-study eye.
TEPEZZA Placebo
The benefits of TEPEZZA go beyond proptosis reduction1-3,5-7
Patients with active TED studied in two 24-week, randomized, double-masked, placebo-controlled trials2,6
*Euthyroid or with mild hypo- or hyperthyroidism defined as free thyroxine (FT4) and free triiodothyronine (FT3) levels <50% above or below the normal limits (every effort should be made to correct the mild hypo- or hyperthyroidism promptly).4
Patients with chronic TED studied in a 24-week, randomized, double-masked, placebo-controlled trial.1
*Euthyroid or with mild hypo- or hyperthyroidism defined as free thyroxine (FT4) and free triiodothyronine (FT3) levels <50% above or below the normal limits (every effort should be made to correct the mild hypo- or hyperthyroidism promptly).4
Patients with active TED studied in two 24-week, randomized, double-masked, placebo-controlled trials2,6
*Euthyroid or with mild hypo- or hyperthyroidism defined as free thyroxine (FT4) and free triiodothyronine (FT3) levels <50% above or below the normal limits (every effort should be made to correct the mild hypo- or hyperthyroidism promptly).4
Patients with chronic TED studied in a 24-week, randomized, double-masked, placebo-controlled trial.1
*Euthyroid or with mild hypo- or hyperthyroidism defined as free thyroxine (FT4) and free triiodothyronine (FT3) levels <50% above or below the normal limits (every effort should be made to correct the mild hypo- or hyperthyroidism promptly).4
Pooled analysis of Phase 2/3 studies (N=171)5
DIPLOPIA
2X more patients had complete diplopia resolution vs placebo3,5
Secondary endpoint
Diplopia resolution rate ((grade 0) at Week 24 within the subset of patients in the studies with diplopia at baseline
Diplopia was evaluated on a 4-point scale where scores ranged from 0 for no diplopia to 3 for constant diplopia. A diplopia responder was defined as a patient with baseline diplopia >0 and a score of 0 at Week 24.2,3
In the Phase 4 trial in patients with chronic TED, no differences between the teprotumumab and placebo groups were observed for diplopia endpoints. The trial was not powered to detect a treatment difference in diplopia due to the low incidence of diplopia at baseline among the study subjects.1
TEPEZZA Placebo
INFLAMMATION
Almost 3X more patients
experienced
reduction in inflammation5,7
Secondary endpoint
In patients with CAS ≥4 at baseline inflammatory response (CAS 0 or 1, inactive disease state) at Week 24
The Clinical Activity Score (CAS) is a composite score with equal weighting of each of these seven factors: spontaneous orbital pain, gaze-evoked orbital pain, eyelid swelling that isconsidered to be due to active TED, eyelid erythema (redness), conjunctival redness considered to be due to active TED, chemosis (swelling of the conjunctive), and inflammation of the caruncle or plica. However, the factors may not be of equal clinical weight to patients or to physicians treating these patients and as such the clinical meaningfulness is unknown.8
TEPEZZA Placebo
Phase 2 and 3: Patients with active TED were studied in 24-week, randomized, double-masked, placebo-controlled trials.2,6
Phase 4 study (N=62)1
MRI
In 6 patients who were assessed, decrease in orbital fat/muscle volume was observed1
In observation of 6 TEPEZZA patients who had an orbital MRI (12 eyes total), a decrease in orbital fat and muscle volume was shown. Analysis is exploratory and has not been adjusted for multiple comparisons. No conclusions of statistical or clinical significance can be drawn.
Phase 4: Patients with chronic TED studied in a 24-week, randomized, double-masked, placebo-controlled trial.1
TEPEZZA Placebo
GO-QOL
Changes in GO-QOL vs placebo6,†
GO-QOL (Graves’ ophthalmopathy quality of life patient-reported questionnaire) is a 16-item self-administered questionnaire divided into 2 subscales that is used to measure changes over time in visual functioning and appearance. Equal weight is assigned to 8 measures of visual functioning and appearance, respectively, however their relative importance is unknown. The GO-QOL is not validated in patients with TED. As such, results should be interpreted with caution.2
TEPEZZA Placebo
“Without TEPEZZA, I don’t think that I would have been able to go back to work. When working on a computer all day, the double vision would have made it impossible.”
—Bonnie S., real TEPEZZA patient
Results sustained nearly 2 years after treatment11
Follow-up analyses of outcomes in Phase 2, Phase 3 (OPTIC study), and OPTIC Extension (OPTIC-X) (N=112)11
~2 years after treatment
of TEPEZZA patients did not report additional treatment for TED, including surgery11
Proptosis responders who flared and received an additional course were excluded from the additional treatment count if they were still ≥2 mm proptosis improvement from baseline (n=6).11
Kahaly 2024: 112 patients who received 7 or 8 infusions of TEPEZZA in the Phase 2, Phase 3 (OPTIC study), and OPTIC Extension (OPTIC-X) studies were analyzed for long-term maintenance of responses. Responses were assessed and pooled from study baseline to Week 24 (formal study) and up to Week 72 (formal follow-up).§ Outcomes included the percentages of observed patient responses from the study baseline. Studies differed in the timing of follow-up visits, and data from some visits were unavailable. 11
‡ Consider open-label treatment phase study limitations when interpreting results. The OPTIC-X study was not blinded, not controlled, and included inherent self-selection bias for remaining in the trial. 11
§Responses assessed included clinical activity score (CAS ≥2-point improvement), the European Group of Graves’ Orbitopathy ophthalmic composite outcome, diplopia (≥1 Gorman grade improvement), proptosis (≥2-mm improvement), Overall (improvement in proptosis and CAS), and disease inactivation (CAS ≤1).11
CAS, Clinical Activity Score; TED, Thyroid Eye Disease.