"it has been reported that" is a correct and usable part of a sentence in written English. You can use it to introduce a statement that you've heard from someone else and cannot personally confirm. For example: "It has been reported that the city will be implementing a new recycling system next month."
It has been reported that, another phenylalanine alkaloid capsaicine and its analogues possess oestrogenic activity.
It has been reported that ethanol contributes to neuronal damage.
It has been reported that he has received police protection.
It has been reported that the pair made contact online.
It has been reported that he is in Moscow.
It has been reported that Edward has no living relatives.
It has been reported that all five men were killed.
It has been reported that FRP strengthening is effective to enhance the structural load-carrying capacity.
It has been reported that gastroschisis is associated with low maternal body mass index (BMI).
It has been reported that TSA can fabricated more ordered nanotubes, as compared to OSA.
It has been reported that some thiazolidinediones (TZDs) activate FFAR1 with micromolar potency.
Being a terminologist, I care about word choice. Ludwig simply helps me pick the best words for any translation. Five stars!
Maria Pia Montoro
Terminologist and Q/A Analyst @ Translation Centre for the Bodies of the European Union