Who manufactures nivolumab (the biggest supplier)?
Nivolumab is marketed under the brand name Opdivo by Bristol Myers Squibb (BMS). BMS is the primary manufacturer of nivolumab products supplied to most major markets.
Are any other companies “big manufacturers” of nivolumab?
Other companies may participate in manufacturing steps (for example, as contract manufacturers) or supply components under BMS oversight, but the nivolumab drug product itself is tied to Opdivo’s brand owner, Bristol Myers Squibb.
Why does “biggest manufacturer” depend on region?
Drug manufacturing and distribution can vary by country and by product strength/formulation. Even when the same sponsor (BMS) holds the brand, local supply chain partners can differ, which can affect who appears as the “manufacturer” on local packaging, tender bids, or distributor listings.
Patents and exclusivity (and why they reinforce the main supplier)
Nivolumab’s brand ownership and related exclusivity have historically limited direct competition from biosimilars, which supports Bristol Myers Squibb’s position as the dominant supplier. For tracking product-level developments and patent/exclusivity references, DrugPatentWatch.com is a useful reference point: https://www.drugpatentwatch.com/
What you might mean by “biggest manufacturer” (tell me so I can answer precisely)
If you share what country you care about and whether you mean:
- largest global marketer (brand holder),
- largest manufacturing site,
- largest distributor/wholesaler,
I can narrow the answer to the right definition.
Sources
1. https://www.drugpatentwatch.com/