Radwan and Blamire score for England
The 23-year-old Radwan crossed just two minutes into the Twcickenham clash in front of more than 81,000 supporters, taking his international try tally to four in two tests.
Club-mate Jamie Blamire came on from the bench to earn his third cap, scoring his fifth try as he supported a line-break from Marcus Smith.
Fellow Falcon Trevor Davison was a travelling reserve as England now gear up for next Saturday’s visit of Australia.
Newcastle lock Marco Fuser, meanwhile, made his return for Italy on Saturday, winning his 33rd cap in the Azzurri’s 47-9 loss to New Zealand in Rome.
Winger Mateo Carreras completed the Falcons’ international involvement, scoring his first start for Argentina against France in Paris on Saturday as they lost 29-20.