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Pharmacokinetics of azithromycin 1 gram single dose in anorectal tissue and serum

Pharmacokinetics of azithromycin 1 gram single dose in anorectal tissue and serum in healthy men

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12616001666415
Acronym
NIL
Enrollment
10
Registered
2016-12-02
Start date
2016-01-01
Completion date
2016-03-31
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

There are increasing concerns regarding the treatment efficacy of azithromycin 1g single dose for the treatment of rectal chlamydia infections with treatment failure rates up to 21% being reported. There is no pharmacokinetic data available to determine if low rectal tissue concentrations contribute to treatment failure. The purpose of this study is to provide the world first evidence of the pharmacokinetics of azithromycin 1g in rectal tissue

Interventions

Sponsors

University of Melbourne
Lead SponsorUniversity

Study design

Allocation
Non-randomised trial
Intervention model
Single group
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
Male
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

- Men who are HIV/STI free and chlamydia negative - Men aged 18 years and over - Adequate English and comprehension skills to give informed consent

Exclusion criteria

- Self-report of antibiotic use in the last 2 weeks - Current commercial sex work - Men who do not have a mobile phone - HIV positive status - Concurrent medication likely to significantly interact with azithromycin (e.g. cyclosporine, digoxin) - Known macrolide allergy or contraindications

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026