- All three doses of lebrikizumab met primary endpoint with statistical significance
- Lebrikizumab was well-tolerated; safety profile consistent with prior studies
- Efficacy and safety profile support advancement into Phase 3; planned by end of 2019
- Conference call and webcast today at
Lebrikizumab is a novel, injectable, humanized monoclonal antibody designed to bind interleukin-13 (IL-13) with high affinity, specifically preventing the formation of the IL-13Rα1/IL-4Rα heterodimer complex, which inhibits downstream signaling. IL-13 is believed to be a central pathogenic mediator that drives multiple aspects of the pathophysiology of atopic dermatitis by promoting type 2 inflammation and mediating its effects on tissue, resulting in skin barrier dysfunction, itch, skin thickening and infection.
“These data are compelling and further demonstrate clinically that IL-13 is a key mediator in atopic dermatitis,” said
Lebrikizumab Phase 2b Study Results
Each of the lebrikizumab doses evaluated showed a dose-dependent and statistically significant improvement in the primary endpoint, the mean percent change in EASI score from baseline to week 16. The improvement in EASI score was 62.3% for patients receiving lebrikizumab, 125 milligrams (mg), every four weeks (p=0.0165), 69.2% for patients receiving lebrikizumab, 250 mg, every four weeks (p=0.0022) and 72.1% for patients receiving lebrikizumab, 250 mg, every two weeks (p=0.0005) compared to 41.1% for patients receiving placebo.
Patients treated with lebrikizumab at the 250 mg dose every two or four weeks achieved statistically significant improvements in other key efficacy measures compared to placebo after 16 weeks of treatment, including:
Lebrikizumab 250 mg every four weeks:
- 33.7% of lebrikizumab-treated patients achieved clearing or near-clearing of skin lesions, as measured by an investigator's global assessment (IGA) score of 0 or 1, and a reduction of at least 2 points from baseline, compared to 15.3% with placebo (p=0.0392).
- 56.1% of lebrikizumab treated patients achieved a reduction of at least 75% from baseline in EASI score (EASI-75), compared to 24.3% on placebo (p=0.0021).
- 36.1% of lebrikizumab treated patients achieved a reduction of at least 90% from baseline in EASI score (EASI-90), compared to 11.4% on placebo (p=0.0062).
Lebrikizumab 250 mg every two weeks:
- 44.6% of lebrikizumab-treated patients achieved clearing or near-clearing of skin lesions, as measured by an IGA score of 0 or 1, and a reduction of at least 2 points from baseline, compared to 15.3% with placebo (p=0.0023).
- 60.6% of lebrikizumab treated patients achieved a reduction of at least 75% from baseline in EASI-75, compared to 24.3% on placebo (p=0.0005).
- 44.0% of lebrikizumab treated patients achieved a reduction of at least 90% from baseline in EASI-90, compared to 11.4% on placebo (p=0.0006).
The secondary endpoints for the 125 mg lebrikizumab dosing arm did not meet statistical significance.
The most common adverse events reported across all three lebrikizumab dosing arms were upper respiratory tract infection (7.5% vs. 5.8% for placebo), nasopharyngitis (6.6% vs. 3.8% for placebo), headache (3.1% vs. 5.8% for placebo) and injection site pain (3.1% vs. 1.9% for placebo). Rates of conjunctivitis (2.6% compared to no reports for placebo) and herpes infections (2.2% compared to no reports for placebo) were low. Overall, adverse events observed in lebrikizumab-treated patients were primarily mild to moderate in severity and infrequently led to treatment discontinuation.
“Based on the clinical profile observed in this study, we believe lebrikizumab has the potential to be a best-in-disease therapy for atopic dermatitis,” said Tom Wiggans, chairman and chief executive officer of
Following an end-of-Phase 2 meeting with the
About the Lebrikizumab Phase 2b Study
The randomized, double-blind, placebo-controlled, parallel-group Phase 2b study was designed to evaluate the safety and efficacy of lebrikizumab as monotherapy compared with placebo and to establish the dosing regimen for a potential Phase 3 program in patients with moderate-to-severe atopic dermatitis. The study enrolled 280 patients ages 18 years and older with moderate-to-severe atopic dermatitis at 57 sites in
- Group 1: A loading dose of 250 mg of lebrikizumab at week 0, followed by 125 mg of lebrikizumab every four weeks.
- Group 2: A loading dose of 500 mg of lebrikizumab at week 0, followed by 250 mg of lebrikizumab every four weeks.
- Group 3: A loading dose of 500 mg of lebrikizumab at weeks 0 and 2, followed by 250 mg of lebrikizumab every two weeks.
- Group 4: Placebo at week 0 and every two weeks thereafter.
The inclusion criteria for patients enrolled in this study included chronic atopic dermatitis for at least one year, an EASI score of 16 or greater, an IGA score of 3 or 4 and a body surface area involving at least 10% at screening and baseline. Following the end of the 16-week assessment period, patients are followed for an additional 16 weeks.
About Atopic Dermatitis
Atopic dermatitis is the most common and severe form of eczema, a chronic inflammatory condition that can present as early as childhood and continue into adulthood. A moderate-to-severe form of the disease is characterized by rashes on the skin that often cover much of the body and also includes redness, cracking, dryness and intense, persistent itching. The skin condition can have a negative impact on patients’ mental and physical functioning, limiting their daily activities and health-related quality of life. Patients with moderate-to-severe atopic dermatitis have reported a larger impact on quality of life than patients with psoriasis.
Lebrikizumab is a novel, injectable, humanized monoclonal antibody designed to bind IL-13 with very high affinity, specifically preventing the formation of the IL-13Rα1/IL-4Rα heterodimer complex and subsequent signaling, thereby inhibiting the biological effects of IL-13 in a targeted and efficient fashion. IL-13 is believed to be a central pathogenic mediator that drives multiple aspects of the pathophysiology of atopic dermatitis by promoting type 2 inflammation and mediating its effects on tissue, resulting in skin barrier dysfunction, itch, skin thickening and infection.
Conference Call and Webcast
Dermira will host a webcast and conference call today beginning at 5:30 a.m. Pacific Time / 8:30 a.m. Eastern Time. Analysts and investors can participate in the conference call by dialing (877) 359-9508 for domestic callers and (224) 357-2393 for international callers using the conference ID# 7987427. The webcast can be accessed live on the Investor Relations page of Dermira’s website, http://investor.dermira.com, and will be available for replay for 30 days following the call.
Dermira is a biopharmaceutical company dedicated to bringing biotech ingenuity to medical dermatology by delivering differentiated, new therapies to the millions of patients living with chronic skin conditions. Dermira is committed to understanding the needs of both patients and physicians and using its insight to identify, develop and commercialize leading-edge medical dermatology products. The company’s approved treatment, QBREXZA™ (glycopyrronium) cloth, is indicated for pediatric and adult patients (ages nine and older) with primary axillary hyperhidrosis (excessive underarm sweating). Please see the QBREXZA prescribing information.
In addition to filings with the Securities and Exchange Commission (
The information in this news release contains forward-looking statements and information within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, which are subject to the “safe harbor” created by those sections. This news release contains forward-looking statements that involve substantial risks and uncertainties, including statements with respect to: Dermira’s goal of bringing biotech ingenuity to medical dermatology by delivering differentiated, new therapies to the millions of patients living with chronic skin conditions; Dermira’s plans to expedite initiation of a Phase 3 development program for lebrikizumab and to initiate the program by the end of 2019; lebrikizumab’s potential to be a best-in-disease therapy for atopic dermatitis; Dr.
Vice President, Corporate Communications
Vice President, Investor Relations
Source: Dermira, Inc.