Biogen's Spinraza is still churning—even after Novartis' rival Zolgensma launch

biogen
Biogen beat sales and earnings estimates in the third quarter, it announced Tuesday. (Biogen)

Biogen's Spinraza has faced its first full quarter of competition from Novartis' gene therapy Zolgensma and early figures show the meds might be able to grow sales alongside one another. 

The Boston biotech on Tuesday reported that Spinraza continues to roll even with Zolgensma on the scene after Novartis’ May launch. During the third quarter, Spinraza sales grew 17% to $547 million, besting consensus analyst expectations by $30 million.

But Spinraza generated a good chunk of those revenues—$310 million—outside the U.S., where it's not yet facing Zolgensma competition. Right now, the two drugs are only squaring off in the States in SMA patients under age 2.

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RELATED: Novartis’ Zolgensma beats data woe, as Mayzent hits reimbursement hurdles

For its part, Novartis on Tuesday reported that Zolgensma generated $160 million in the third quarter after its May FDA approval, beating expectations. The drug has weathered a data manipulation scandal, payer resistance and more, but uptake has so far been strong, CEO Vas Narasimhan said. Novartis also said Tuesday it'll face Zolgensma delays in Europe and Japan over manufacturing problems. 

Both meds carry sky-high price tags and treat a rare, muscle-wasting disease. A one-time treatment, Zolgensma is the world's most expensive med at $2.1 million. Biogen launched Spinraza in early 2017 at $750,000 for the first year and $375,000 for subsequent years.

Overall, Biogen on Tuesday reported third-quarter revenues of $3.6 billion and non-GAAP earnings per share of $9.17, beating analyst expectations of $3.5 billion and $8.21, respectively.

Multiple sclerosis revenues grew 2% to $2.35 billion versus the same period last year, while biosimilar sales grew 36% to $184 million after the company launched its Humira copy in Europe last October. Royalties from Roche's sales of multiple sclerosis Ocrevus also chipped in $188 million, a 37% jump from last year's third quarter.

RELATED: Biogen resurrects aducanumab, arguing expanded data set supports FDA filing in Alzheimer's  

Even with the solid financial performance, the news at Biogen on Tuesday centered on aducanumab, an Alzheimer's candidate the drugmaker plans to submit to the FDA in early 2020 based on a new data analysis and after discussions with the FDA. Previously, Biogen discontinued development after a futility analysis determined the med wouldn't benefit patients. 

On Tuesday’s conference call, Biogen CEO Michel Vounatsos said that earlier analysis was “incorrect” because it “didn’t effectively evaluate all of the variables” in two phase 3 trials assessing the med. Some analysts have their doubts, as one trial showed a clinical benefit and another didn't. Still, Biogen's shares were up about 26% Tuesday.

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