Eli Lilly Announces Results of Taltz and Zepbound Combination Therapy
Eli Lilly and Company announced detailed results from the Together-PsA open-label Phase 3b clinical trial evaluating the concomitant use of Taltz and Zepbound compared to Taltz alone in adults with active psoriatic arthritis and obesity or overweight with at least one additional weight-related comorbid condition. These results were presented in a late-breaking presentation at the 2026 American Academy of Dermatology, AAD, Annual Meeting and simultaneously published in Arthritis & Rheumatology. At the primary endpoint of 36 weeks, treatment with concomitant Taltz and Zepbound met the primary and all key secondary endpoints for statistically significant superiority to Taltz monotherapy. A greater reduction in PsA disease activity was seen as early as Week 4 in the Taltz and Zepbound treatment arm, before clinically meaningful weight loss was observed. Treatment with Taltz and Zepbound also led to a significant increase in patients achieving Minimal Disease Activity, a high bar for PsA treatment success, along with improvements in fatigue, physical function, mental health-related quality of life, cardiometabolic health and inflammation. In addition, Taltz plus Zepbound was associated with nominally statistically significant improvements in BMI, body weight, systolic blood pressure, glucose, HbA1c, triglycerides, and total cholesterol versus Taltz monotherapy.
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- Primary and Secondary Endpoints: The study focuses on the primary and all key secondary endpoints for statistical superiority related to Total Tz Monotherapy at 36 weeks.
- Statistical Superiority: The aim is to demonstrate that Total Tz Monotherapy is statistically superior in its effects compared to other treatments.

New Data Presentation: Phase 3 data for the drugs IxeKizumab (brand name: Taltz) and Tirzepatide (brand name: Zepbound) was presented at an annual meeting.
Efficacy Results: The data demonstrated superior efficacy for adults suffering from psoriatic arthritis and obesity.

Safety Profile Consistency: The safety profile of the product remains consistent, indicating reliability in its performance.
Lack of New Safety Signals: There have been no new safety signals reported in the first year of monitoring, suggesting ongoing safety assurance.

- Durable Disease Control: Eli Lilly has achieved four years of effective control over a specific disease, demonstrating the durability of their treatment approach.
- Focus on Dermatology: The advancements are particularly relevant in the field of dermatology, highlighting the company's commitment to addressing skin-related health issues.

Treatment Duration: Patients with moderate-to-severe atopic dermatitis can receive up to four years of effective disease control.
Disease Management: The treatment aims to provide durable control of the condition, improving the quality of life for affected individuals.
- Efficacy Durability: In the ADlong Phase 3b study, nearly all patients treated with EBGLYSS achieved significant skin improvement (EASI-75) over four years, with 75% reaching near-complete skin clearance (EASI-90), indicating a transformative impact on the quality of life for eczema patients.
- Itch Relief: 78% of patients experienced significant itch relief (Pruritus NRS≤4) during treatment, which is crucial for enhancing daily living and mental health, demonstrating EBGLYSS's effectiveness in alleviating eczema symptoms.
- Steroid-Free Treatment: 80% of patients achieved results without the need for topical corticosteroids while on EBGLYSS, indicating the drug's ability to provide durable outcomes and reduce reliance on traditional therapies, thereby reshaping the treatment paradigm for eczema.
- Safety Profile: The safety of EBGLYSS in the first year of the ADlong study was consistent with known safety profiles, with no new safety signals observed, and the majority of adverse events were mild or moderate, reinforcing its potential as a first-line biologic treatment.






