Covid-vaccine maker AstraZeneca said Friday that profits fell sharply in the first half on ballooning costs linked to its takeover of US biotech firm Alexion.
The pharmaceutical group added that sales of its Covid-19 vaccine Vaxzevria slumped 49 percent in the second quarter.
Operating expenses jumped 33 percent, "reflecting the addition of Alexion, and continued investment in new launches and the pipeline" of drugs, the group said.
That offset a 48-percent jump in revenue to more than $22 billion.
Revenue rose strongly thanks to sales of Alexion medicines.
The group said annual revenue from Covid-19 medicines is anticipated to be broadly flat compared with 2021.
Astra said the majority of Vaxzevria revenue this year was set to come from initial contracts struck as the pandemic took hold.
AstraZeneca has meanwhile faced vast costs following its $39-billion takeover of US group Alexion in 2021.