Biomaterial Database

Postgonococcal urethritis: a double-blind study of doxycycline vs placebo. 1990

K A Mclean, and B A Evans, and J M Lim, and B S Azadin

Department of Genitourinary Medicine and Medical Microbiology, West London, UK.

The occurrence of postgonococcal urethritis (PGU) was studied in heterosexual men who were randomly assigned to receive either oral doxycycline 100 mg or a placebo capsule twice daily for seven days in addition to routine single dose treatment of urethral gonorrhoea. Of 216 patients suitable for assessment, PGU was diagnosed in 54/104 (51.9%) in the placebo group and 30/112 (26.8%) in the doxycycline group. Symptomatic PGU was uncommon (6.7% in the placebo group, 2.7% in the doxycycline group). Persistence of chlamydial infection at first follow-up was associated with the development of PGU in the placebo group (p less than 0.05). Although PGU developed in 10/12 (83%) patients in whom Mycoplasma hominis was isolated on entry to the study, the association was not statistically significant. The development of PGU was not associated with the isolation of Ureaplasma urealyticum. A significant reduction in the incidence of PGU was achieved by the addition of a course of doxycycline (p less than 0.001), but there remained a considerable proportion of patients in whom the aetiology of PGU was unknown.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009174	Mycoplasma	A genus of gram-negative, mostly facultatively anaerobic bacteria in the family MYCOPLASMATACEAE. The cells are bounded by a PLASMA MEMBRANE and lack a true CELL WALL. Its organisms are pathogens found on the MUCOUS MEMBRANES of humans, ANIMALS, and BIRDS.	Eperythrozoon,Haemobartonella,Mycoplasma putrefaciens,PPLO,Pleuropneumonia-Like Organisms,Pleuropneumonia Like Organisms
D002692	Chlamydia trachomatis	Type species of CHLAMYDIA causing a variety of ocular and urogenital diseases.
D004311	Double-Blind Method	A method of studying a drug or procedure in which both the subjects and investigators are kept unaware of who is actually getting which specific treatment.	Double-Masked Study,Double-Blind Study,Double-Masked Method,Double Blind Method,Double Blind Study,Double Masked Method,Double Masked Study,Double-Blind Methods,Double-Blind Studies,Double-Masked Methods,Double-Masked Studies,Method, Double-Blind,Method, Double-Masked,Methods, Double-Blind,Methods, Double-Masked,Studies, Double-Blind,Studies, Double-Masked,Study, Double-Blind,Study, Double-Masked
D004318	Doxycycline	A synthetic tetracycline derivative with similar antimicrobial activity.	2-Naphthacenecarboxamide, 4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-, (4S-(4alpha,4aalpha,5alpha,5aalpha,6alpha,12aalpha))-,Alpha-6-Deoxyoxytetracycline,Atridox,BMY-28689,BU-3839T,Doryx,Doxycycline Calcium,Doxycycline Calcium Salt (1:2),Doxycycline Hemiethanolate,Doxycycline Hyclate,Doxycycline Monohydrate,Doxycycline Monohydrochloride, 6-epimer,Doxycycline Monohydrochloride, Dihydrate,Doxycycline Phosphate (1:1),Doxycycline-Chinoin,Hydramycin,Oracea,Periostat,Vibra-Tabs,Vibramycin,Vibramycin Novum,Vibravenos,Alpha 6 Deoxyoxytetracycline,BMY 28689,BMY28689,BU 3839T,BU3839T,Doxycycline Chinoin,Doxycycline Monohydrochloride, 6 epimer,Vibra Tabs
D006069	Gonorrhea	Acute infectious disease characterized by primary invasion of the urogenital tract. The etiologic agent, NEISSERIA GONORRHOEAE, was isolated by Neisser in 1879.	Neisseria gonorrhoeae Infection
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000284	Administration, Oral	The giving of drugs, chemicals, or other substances by mouth.	Drug Administration, Oral,Administration, Oral Drug,Oral Administration,Oral Drug Administration,Administrations, Oral,Administrations, Oral Drug,Drug Administrations, Oral,Oral Administrations,Oral Drug Administrations
D014509	Ureaplasma	A genus of gram-negative, nonmotile bacteria which are common parasitic inhabitants of the urogenital tracts of humans, cattle, dogs, and monkeys.	T-Mycoplasma,Ureaplasma parvum,Ureaplasma urealyticum biovar 1
D014521	Urethra	A tube that transports URINE from the URINARY BLADDER to the outside of the body in both the sexes. It also has a reproductive function in the male by providing a passage for SPERM.	External Urethral Sphincter,External Urinary Sphincter,Internal Urethral Sphincter,Internal Urinary Sphincter,Internal Vesical Sphincter,Urethral Sphincters,External Urethral Sphincters,External Urinary Sphincters,Internal Urethral Sphincters,Internal Urinary Sphincters,Internal Vesical Sphincters,Sphincter, External Urethral,Sphincter, External Urinary,Sphincter, Internal Urethral,Sphincter, Internal Urinary,Sphincter, Internal Vesical,Sphincter, Urethral,Urethral Sphincter,Urethral Sphincter, External,Urethras,Urinary Sphincter, External,Urinary Sphincter, Internal,Vesical Sphincter, Internal