What happened Shares of Ocugen (NASDAQ: OCGN) jumped on Wednesday after the biopharmaceutical company announced positive results from a phase 3 trial of Covaxin, a COVID-19 vaccine candidate. By the close of trading, Ocugen's stock price was up 9% after rising as much as 46% earlier in the day. So what On Feb. 2, Ocugen struck a deal with India-based vaccine developer Bharat Biotech to commercialize Covaxin in the U.S. Under the terms of the agreement, Ocugen will receive a 45% share of the profits, with Bharat Biotech receiving the rest. Ocugen's stock rose sharply on Wednesday. Image source: Getty Images. Today, Bharat Biotech said an interim analysis of its phase 3 study of Covaxin showed the vaccine to have 81% efficacy in preventing COVID-19 after the second dose. Ocugen CEO Dr. Shankar Musunuri believes the data from this trial in India could help the biotech obtain emergency use authorization (EUA) for Covaxin from the Food and Drug Administration (FDA). "These results, which in part suggest significant immunogenicity against the rapidly emerging UK variant, represent an additional step toward outlining the regulatory pathway for EUA and approval in the United States," Musunuri said in a press release. Now what Although this data is certainly promising, the FDA may require Ocugen to conduct clinical trials in the U.S. before considering the drug for EUA. Moreover, even if Ocugen does eventually receive EUA for Covaxin, it's likely to face stiff competition from the likes of Pfizer (NYSE: PFE) and Moderna (NASDAQ: MRNA). While it's not an apples-to-apples comparison, since their clinical trials were conducted at times when new coronavirus variants were less prevalent, Pfizer and Moderna's vaccines demonstrated efficacy of more than 90% against COVID-19. Thus, Ocugen's stock remains a relatively higher-risk investment compared to these other COVID-19 vaccine developers, albeit one with potentially more upside due to its smaller market capitalization. 10 stocks we like better than Ocugen, Inc.When investing geniuses David and Tom Gardner have a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* David and Tom just revealed what they believe are the ten best stocks for investors to buy right now... and Ocugen, Inc. wasn't one of them! That's right -- they think these 10 stocks are even better buys. See the 10 stocks *Stock Advisor returns as of February 24, 2021 Joe Tenebruso has no position in any of the stocks mentioned. The Motley Fool recommends Moderna Inc. The Motley Fool has a disclosure policy.Source