Pfizer targets 2028 obesity drug approvals with monthly injection berobenatide

Product / Tech
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Summary · why it matters

Pfizer is advancing a potential first-in-class monthly GLP-1 receptor agonist, berobenatide, into an extensive phase III program in 2026, aiming for initial approvals in 2028 as it seeks to capture a share of the global obesity market projected to reach nearly $120 billion by 2035. The candidate, acquired through the November 2025 purchase of Metsera, is designed to transition from weekly to monthly maintenance dosing and has shown meaningful weight loss with a favorable tolerability profile in phase IIb studies. Pfizer plans more than 20 obesity studies in 2026, including 10 phase III trials for berobenatide targeting obesity and related conditions such as knee osteoarthritis and obstructive sleep apnea. The company also in-licensed an oral small molecule GLP-1 receptor agonist, YP05002, from Chinese biotech YaoPharma to further build its pipeline. While Eli Lilly and Novo Nordisk dominate the market with Zepbound and Wegovy and are developing next-generation therapies, Pfizer believes the large market can support multiple players and that even a modest share could generate billions in annual revenue.

Impact on stocks 4

Biotech & Genomic Medicine± Mixed · 4 stocks
Pfizer Inc
PFE
▲ PositiveTechnologyrelevance

Pfizer advances berobenatide into phase III, targeting 2028 approval for obesity and related conditions, with favorable phase IIb data.

Eli Lilly and Company
LLY
▼ NegativeCompetitionrelevance

Pfizer's monthly GLP-1 agonist berobenatide targets 2028 approval, potentially competing with Eli Lilly's Zepbound in the obesity market.

Novo Nordisk A/S
NOV
▼ NegativeCompetitionrelevance

Pfizer's monthly GLP-1 agonist berobenatide targets 2028 approval, potentially competing with Novo Nordisk's Wegovy in the obesity market.

Theme Impact 1

Off-coverage companies 1

YaoPharma (Chongqing Yaoyou Pharmaceutical Co.)Private▲ Positive
Demandrelevance

Pfizer in-licensed oral GLP-1 agonist YP05002 from YaoPharma, indicating demand for YaoPharma's pipeline assets.

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