EloraTZP Delivers Up to 23.3% Weight Loss in Adults With Obesity and T2D
Eli Lilly's investigational combination of eloralintide and tirzepatide (EloraTZP) showed up to 23.3% weight loss and 2.9% HbA1c reduction in adults with obesity and type 2 diabetes (T2D) over 48 weeks, according to phase 2b trial data presented at EASD 2026. The trial involved 367 participants and compared EloraTZP to placebo, eloralintide alone, and tirzepatide alone. Eli Lilly reports gastrointestinal adverse events were common but manageable.
How this was made

The 30-second read
Why it matters
The data suggest a significant efficacy advantage over tirzepatide alone, potentially expanding Lilly's obesity franchise.
Market read
First disclosure of strong phase 2b results for a major pharma's obesity treatment could move the stock.
What to watch
High discontinuation rates (10‑27%) could temper enthusiasm.
Background
Eli Lilly disclosed new phase 2b data for its experimental combo drug EloraTZP at the EASD 2026 meeting.
Ticker impact
Eli Lilly presented phase 2b trial data for its investigational EloraTZP combo showing up to 23.3% weight loss.
potential upside as market prices in the robust weight‑loss results
Phase 2b results are material for a large pharma; positive outcomes often lift the stock ahead of further development milestones.
Market effects
May increase interest in obesity‑treatment stocks and amylin‑based therapies.
U.S. biotech sector could see modest gains.
Highlights growing focus on combination obesity drugs worldwide.
Counterpoint
Investors may wait for phase 3 data before pricing in benefits.
Key entities
- companyEli Lilly and Company
Pharmaceutical company developing EloraTZP.