The clinical trials of Pfizer’s coronavirus vaccine found that the all-cause mortality rate of the vaccinated group was higher than that of the control group, months after the trials were launched, according to a recently released FDA report.

According to the report – which was released by the US Food and Drug Administration to provide background information on its questionable decision to grant full approval for the Pfizer-BioNTech Covid-19 mRNA injection, after initially offering limited emergency use authorisation just six months after the vaccine’s clinical trial began – the total number of deaths reported in the vaccinated group was nearly one-quarter higher than the number of deaths in the placebo group.

Just under 22,000 participants were included in each group, with half receiving the coronavirus vaccine, and half receiving a saline solution injection.

The initial results of the clinical trials suggested a high-level of efficacy for the vaccine in preventing symptomatic cases of COVID-19, an in particular, serious illness from COVID – but lacked significant data on all-cause mortality, due to the short time-frame.

A follow-up assessment of participants completed on March 13th of this year looked at the overall health outcomes of the trial participants, six months after they received either the experimental vaccine or the saline solution injection.

While Pfizer released partial data on the outcomes from the six-month assessment ending March 13th, the new FDA report includes more comprehensive data, and shows a significantly higher number of all-cause fatalities among the vaccinated cohort.

The Pfizer report in late July of this year showed effectively equal all-cause fatality rates between the vaccine and placebo cohorts six months after the tests were conducted, with 15 deaths among the nearly 22,000 vaccine recipients, versus 14 deaths among the nearly 22,000 placebo recipients.

Most of the total 29 deaths in both groups were not related to Covid-19. Three fatalities were listed as being related to the virus; two in the placebo group and one in the vaccinated group.

The FDA report, however, revealed a larger number of deaths by all causes in both groups, with 17 deaths among the control group and 21 in the vaccinated cohort.

The relative difference in all-cause deaths between the two cohorts equates to 23.5%, with the vaccinated population having a higher all-cause mortality rate.

The FDA report also states that following the emergency use authorisation in December 2020, a number of cases of rare heart conditions, including myocarditis and pericarditis, were reported following vaccination, leading the FDA and CDC to identify “serious risks for myocarditis and pericarditis following administration of” the Pfizer vaccine. The risk factor appears to be higher in males under 40, the report added, with boys ages 12 to 17 being especially at risk.