[noun] + に関わる [noun] + に関わる + [noun] [noun] + に関わっている
に関わる means "to affect", "to bear on", "to be involved in": something touches a matter closely enough to make a difference to it. It follows a noun with に, and it often comes straight before another noun, as in いのちにかかわる命に関わるびょうき病気, "a life-threatening illness".
With いのち命 "life", しんよう信用 "trust", めいよ名誉 "honour" or そんぞく存続 "survival", に関わる means the thing is at risk. いのちにかかわる命に関わる is a set phrase: "life-threatening".
With a field or an event, に関わる says a person takes part in it. かかわっている関わっている is the state of being involved now.