What happened

Shares of iBio (IBIO -2.32%) climbed on Friday after the biotech announced plans to develop an intriguing second-generation vaccine candidate for COVID-19. By the close of trading, iBio's stock price was up 16.7% after rising as much as 41.3% earlier in the day. 

So what

iBio's experimental vaccine, IBIO-202, targets the nucleocapsid protein (N protein) of the novel coronavirus. N proteins tend to produce an immune response and remain relatively unchanged during mutations. By targeting the N protein, iBio hopes to develop a vaccine that will be highly effective against new coronavirus variants.

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Image source: Getty Images.

"The N protein strategy of IBIO-202 is complementary to existing first-generation, S protein-directed vaccines and may be suitable as a more universal coronavirus vaccine," iBios' chief scientific officer, Martin Brenner, said in a press release.

iBio used its plant-based FastPharming System to express N protein antigens and has begun preclinical studies, the results of which are expected in its fiscal 2022 first quarter.

Now what

iBio acknowledged that competition is intense in the COVID-19 vaccine space. Yet management correctly believes there is still room for new vaccines that can help to defend against emerging coronavirus strains. Thus, should IBIO-202 prove safe and effective in clinical trials, there would likely be strong global demand for iBio's new vaccine.