What is the optimal time to retest patients with a urogenital chlamydia infection?

What is the optimal time to retest patients with a urogenital chlamydia infection? A randomized controlled trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN12159453

Enrollment

2500

Registered

2017-05-09

Start date

2012-05-01

Completion date

Unknown

Last updated

2017-11-27

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

Conditions

Urogenital Chlamydia trachomatis infection Infections and Infestations Other sexually transmitted chlamydial diseases

Interventions

A single-centre randomized controlled trial among urogenital chlamydia nucleic acid amplification test positive heterosexual Amsterdam STI clinic clients. After treatment, patients were randomly assig

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Heterosexual patients of the Amsterdam STI clinic testing positive for urogenital chlamydia 2. Aged 12 years or older

Exclusion criteria

Exclusion criteria: Does not meet inclusion criteria

Design outcomes

Primary

Measure	Time frame
1. The number and percentage of participants retested up to 35 weeks after inclusion 2. The proportion of participants who were CT positive, measured by nucleic acid amplification test, up to 35 weeks after inclusion	—

Secondary

Measure	Time frame
1. The number, percentage and chlamydia positivity proportion of participants who: 1.1. Returned more than 1 week before the assigned date 1.2. Returned at assigned date (this was defined as a visit in the period >1 week before, until 6 weeks after the assigned date) 1.3. Returned >6 weeks after the assigned date but no later than 35 weeks (8 months) after inclusion 1.4. Those who did not return within 35 weeks of inclusion	—

Measure

Time frame

1. The number, percentage and chlamydia positivity proportion of participants who: 1.1. Returned more than 1 week before the assigned date 1.2. Returned at assigned date (this was defined as a visit in the period >1 week before, until 6 weeks after the assigned date) 1.3. Returned >6 weeks after the assigned date but no later than 35 weeks (8 months) after inclusion 1.4. Those who did not return within 35 weeks of inclusion

—

Countries

Netherlands

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026