One hundred sixteen patients (92 men and 24 women) with suspected uncomplicated
gonorrhea were randomized in a double-blind manner to receive intramuscular treatment with 1.0 g of
cefpimizole, 1.0 g of
cefotaxime, or 4.8 x 10(6) units of aqueous
procaine penicillin G (APPG) with 1 g of oral
probenecid. Seventeen percent were nonassessable (cultures negative, co-existing
syphilis, etc.).
Infection sites in 96 assessable patients were urethra (78), cervix (17), pharynx (two), and rectum (two). Of 52 patients treated with
cefpimizole, 46 (88%) were bacteriologically cured, as compared with 100% (24 of 24) treated with APPG (P = 0.18) and 90% (18 of 20) treated with
cefotaxime (P greater than 0.20). On a weight basis the in-vitro activity of
cefpimizole against Neisseria gonorrhoeae was similar to that of APPG.
Pain at the injection site was reported by 52% of patients treated with
cefpimizole as compared with 27% of those given
cefotaxime (P = 0.008) and 17% of those given APPG (P = 0.002). No major organ toxicity was found with
cefpimizole,
cefotaxime, or APPG. Thus, for acute uncomplicated
gonorrhea cefpimizole is similar in efficacy to
cefotaxime and APPG but has a higher frequency of
pain at the injection site.