Inovio Pharmaceuticls (INO) - Get Inovio Pharmaceuticals Inc. Report and CureVac (CVAC) - Get CureVac N.V. Report were climbing Thursday, spurred by encouraging vaccine candidate results and the recent pause of Johnson & Johnson's (JNJ) - Get Johnson & Johnson Report vaccine
Shares of Inovio were surging 12% to $9.91 in trading Thursday, while CureVac was climbing 5.23% to $108.
Inovio said the results of a new study showed its COVID-19 vaccine candidate INO-4800 was capable of producing neutralizing antibodies and T-cell responses against the U.K., South African and Brazilian variant strains.
The company said in a statement that INO-4800 "induced a robust T cell response" against all spike protein variants tested.
Last month, Inovio reported better-than-expected fourth-quarter results.
Meanwhile, German drugmaker CureVac, which went public last year, said it has seen the number of requests for its experimental COVID-19 vaccine increase over the past few days.
On Tuesday, the Centers for Disease Control and Prevention and the Food and Drug Administration suspended use of Johnson & Johnson's (JNJ) - Get Johnson & Johnson Report due to concerns about blood clotting. Shares were up about 1%.
CureVac said in a statement Thursday that it would start testing CVnCoV, its COVID-19 vaccine, on adolescents as young as 12 at the end of the month, as it gets ready to publish initial efficacy results for adults in the second quarter.
The European Union in November secured up to 405 million doses of CureVac’s two-shot vaccine, Reuters reported, which has yet to win regulatory approval, the company’s only large supply contract so far.
CureVac also reported a fourth-quarter loss and beat analysts' revenue expectations.
In January, CureVac agreed to develop next-generation COVID vaccines with GlaxoSmithKline (GSK) - Get GSK plc American Depositary Shares (Each representing two) Report, which took a 10% stake in CureVac last year.