Evans 1970

Methods	Randomly allocated consecutive women in a double blind way. No placebos were used and because one treatment was oral and intravaginal and the other oral only, blinding was until the time of allocation.
Participants	Women attending sexually transmitted disease clinic in London, England. No mention of any partner treatment attempt.
Interventions	Metronidazole 200 mg by mouth three times daily for 7 days versus nifuratel 200 mg by mouth three times daily for 7 days + one 250 mg vaginal pessary for 10 nights.
Outcomes	Parasitological and clinical cure. Side effects.
Notes	Diagnosis by wetmount in most cases and with culture and smear in some. Loss to follow up 17% (19/115).