Peptide therapeutics have become a bigger and bigger part of drug development, especially in cancer, metabolic disorders, and other chronic diseases. The global peptide therapeutics market is estimated at USD 53,869.3 Million in 2026 and projected to reach USD 85,376.8 Million by 2033, registering a 6.8% CAGR from 2026 to 2033. The growing R&D activity, a rising burden of cancer and metabolic disease, and partnerships between pharmaceutical and biotech companies are all feeding that expansion.
The market is also moving past the traditional injectable-peptide model. Some of the observable trends are that pharmaceutical companies are increasingly exploring oral delivery, sharper targeting, computational peptide design, as well as longer-acting therapies. Furthermore, branded peptide therapeutics registered over 61% of market revenue in 2026, thus making them the leading segment by product-type, while cancer is the leading application with a 43% revenue share in 2026.
What are Peptide Therapeutics?
Peptide therapeutics are medicines built from short chains of amino acids, usually with molecular weights somewhere between 500 and 5,000 Da. They're designed to act on specific biological targets and show up in treatment for cancer, metabolic disease, cardiovascular disease, and more.
How these therapies get developed is changing too. For instance, one major trend that is worth noting is the push to make peptide drugs easier to take, particularly via oral delivery. A second trend is the rising usage of AI as well as computational tools to design and fine-tune peptide candidates. Meanwhile, the targeted peptide-drug conjugates are attracting greater attention in oncology as well, as developers seek more selective ways to deliver potent treatments.
Leading Companies in the Peptide Therapeutics Industry
-
Teva Pharmaceutical Industries Ltd
Teva Pharmaceutical Industries Ltd., is a global pharmaceutical company, and has a substantial footprint in both generic as well as innovative medicines. Its peptide-related portfolio includes therapies like liraglutide, and its broader strategy keeps blending branded medicines with a large generic business.
In August 2025, Teva won the U.S. FDA approval for, and launched, generic Saxenda (liraglutide injection) — described by the company as the first generic GLP-1 receptor agonist approved for weight loss. It's a clear sign that peptide-based metabolic therapies are becoming part of the generic-drug opportunity as patents start to expire.
-
Novo Nordisk A/S
Novo Nordisk has built a major position in peptide therapeutics through its diabetes and obesity medicines, GLP-1-based treatments included.
Now the company's pushing on the delivery side too. On September 29, 2026, Novo Nordisk signed an exclusive licensing agreement with Hengrui Pharma for HRS-1596, a phase 1-ready GLP-1/GIP dual receptor agonist built for once-weekly oral dosing. The deal gives Novo global development, manufacturing, and commercialization rights outside mainland China, Hong Kong, Macao, and Taiwan, with potential value of up to USD 2.6 billion. It's a textbook example of the broader push to make peptide-based metabolic treatments easier to take.
-
Lilly
Eli Lilly is a pharmaceutical company originating in the U.S., and has a growing lineup of peptide-based metabolic therapies. In July 2026, Eli Lilly reported phase 3 results that are positive for retatrutide, an investigational triple hormone receptor agonist targeting the GIP, GLP-1, and glucagon pathways.
The company said results from two additional Phase 3 trials showed substantial weight loss along with improvements in A1C, and it plans to submit the medicine to the FDA in 2027. This reflects another major trend in the space, such as stacking multiple hormonal pathways into a single therapy for metabolic disease.
-
Sanofi
Sanofi is a global pharmaceutical company active across immunology, diabetes, rare diseases, and other therapeutic areas, with peptide therapeutics exposure through diabetes treatment and other biologically targeted medicines.
The company keeps investing in research and partnerships aimed at expanding its specialty-medicine portfolio, as the wider peptide market shifts toward targeted treatment and therapies that improve efficacy without adding to the treatment burden.
-
Pfizer Inc.
