Dr. Reddy's Laboratories wins U.S. FDA approval for rituximab biosimilar
Dr. Reddy's Laboratories secured U.S. FDA approval for its rituximab biosimilar on August 1, 2026, following a successful inspection of its Hyderabad facility. Fresenius Kabi will exclusively commercialize the drug in the United States, adding to Dr. Reddy's existing presence in Europe, India, and emerging markets. The approval validates the company's capabilities in complex biologics development.

*this image is generated using AI for illustrative purposes only.
Dr. Reddy's Laboratories Ltd. announced on August 1, 2026, that the U.S. Food and Drug Administration (FDA) has approved its rituximab biosimilar for the U.S. market. This regulatory milestone strengthens the company’s global biosimilars portfolio and expands its presence in the United States, one of the world’s largest pharmaceutical markets. Fresenius Kabi will exclusively commercialize the product in the U.S. under a pre-existing agreement.
The disclosure was made under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. The FDA approval was granted on the agency’s goal date, following a successful Pre-License Inspection (PLI) at Dr. Reddy's biologics manufacturing facility in Bachupally, Hyderabad. Sridevi Khambhampaty, Global Head of Biologics at Dr. Reddy's Laboratories, stated that the approval reflects the company’s capabilities in developing and manufacturing complex biologic medicines for global markets.
Rituximab is a monoclonal antibody targeting the CD20 antigen on B lymphocytes. It is widely used to treat B-cell malignancies, including non-Hodgkin lymphoma and chronic lymphocytic leukemia, as well as autoimmune conditions such as rheumatoid arthritis, granulomatosis with polyangiitis (GPA), and microscopic polyangiitis (MPA). The FDA’s decision was supported by comprehensive analytical, non-clinical, and clinical evidence demonstrating that the biosimilar is highly similar to the reference product, Rituxan®, with no clinically meaningful differences in safety, purity, or potency.
Global Commercial Footprint
The rituximab biosimilar is already established in multiple international markets. Dr. Reddy's has commercialized the product in India, the European Union, the United Kingdom, Switzerland, and Canada. Additionally, it holds marketing approvals in more than 25 emerging markets. This broad footprint underscores the company’s strategy to leverage its biosimilars business for both near-term and long-term growth across developed and emerging economies.
| Market Region | Status |
|---|---|
| United States | Approved; Exclusive commercialization by Fresenius Kabi |
| European Union | Commercialized |
| United Kingdom | Commercialized |
| India | Commercialized |
| Canada | Marketing Approval |
| Switzerland | Marketing Approval |
| Emerging Markets | Commercialized in >25 countries |
What the Numbers Show
The approval of the rituximab biosimilar in the U.S. represents a significant diversification of Dr. Reddy's revenue streams within the high-margin biosimilars segment. With the product already generating sales in over 30 countries, the U.S. entry—facilitated by Fresenius Kabi’s distribution network—positions the company to capture value from one of the most lucrative oncology and immunology markets globally. This move complements Dr. Reddy's existing portfolio of six commercial biosimilar products in India and supports its broader goal of ramping up manufacturing capacity for global expansion.
Historical Stock Returns for Dr Reddys Laboratories
| 1 Day | 5 Days | 1 Month | 6 Months | 1 Year | 5 Years |
|---|---|---|---|---|---|
| +0.29% | -1.56% | -15.40% | -5.75% | -11.14% | +21.85% |
How might the exclusive commercialization partnership with Fresenius Kabi impact Dr. Reddy's profit margins compared to self-commercializing in other regions?
What is the projected timeline for Dr. Reddy's rituximab biosimilar to achieve significant market share against established competitors like Rituxan and Truxima in the U.S.?
How does this FDA approval influence investor sentiment regarding the valuation of Dr. Reddy's broader pipeline of complex biologics and biosimilars?


































