Accelerated partner therapy (APT) partner notification for people with Chlamydia trachomatis: protocol for the Limiting Undetected Sexually Transmitted infections to RedUce Morbidity (LUSTRUM) APT cross-over cluster randomised controlled trial

Estcourt, C. S. et al. (2020) Accelerated partner therapy (APT) partner notification for people with Chlamydia trachomatis: protocol for the Limiting Undetected Sexually Transmitted infections to RedUce Morbidity (LUSTRUM) APT cross-over cluster randomised controlled trial. BMJ Open, 10(3), e034806. (doi: 10.1136/bmjopen-2019-034806) (PMID:32229523) (PMCID:PMC7170609)

Abstract

Introduction: Partner notification (PN) is a process aiming to identify, test and treat the sex partners of people (index patients) with sexually transmitted infections (STIs). Accelerated partner therapy (APT) is a PN method whereby healthcare professionals assess sex partners, by telephone consultation, before giving the index patient antibiotics and STI self-sampling kits to deliver to their sex partner(s). The Limiting Undetected Sexually Transmitted infections to RedUce Morbidity programme aims to determine the effectiveness of APT in heterosexual women and men with chlamydia and determine whether APT could affect Chlamydia trachomatis transmission at population level. Methods and analysis: This protocol describes a cross-over cluster randomised controlled trial of APT, offered as an additional PN method, compared with standard PN. The trial is accompanied by an economic evaluation, transmission dynamic modelling and a qualitative process evaluation involving patients, partners and healthcare professionals. Clusters are 17 sexual health clinics in areas of England and Scotland with contrasting patient demographics. We will recruit 5440 heterosexual women and men with chlamydia, aged ≥16 years. The primary outcome is the proportion of index patients testing positive for C. trachomatis 12-16 weeks after the PN consultation. Secondary outcomes include: proportion of sex partners treated; cost effectiveness; model-predicted chlamydia prevalence; experiences of APT. The primary outcome analysis will be by intention-to-treat, fitting random effects logistic regression models that account for clustering of index patients within clinics and trial periods. The transmission dynamic model will be used to predict change in chlamydia prevalence following APT. The economic evaluation will use mathematical modelling outputs, taking a health service perspective. Qualitative data will be analysed using interpretative phenomenological analysis and framework analysis. Ethics and dissemination: This protocol received ethical approval from London—Chelsea Research Ethics Committee (18/LO/0773). Findings will be published with open access licences.

• Item Type: Articles
• Additional Information: Funding: This work presents independent research funded by the National Institute for Health Research (NIHR) under its Programme Grants for Applied Research Programme (reference number RP-PG-0614-20009).
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Flowers, Professor Paul and Nandwani, Dr Rak

Creator Roles

Flowers, P.: Conceptualization, Conceptualization
Nandwani, R.: Writing – review and editing, Writing – review and editing

• Authors: Estcourt, C. S., Howarth, A. R., Copas, A., Low, N., Mapp, F., Woode Owusu, M., Flowers, P., Roberts, T., Mercer, C. H., Wayal, S., Symonds, M., Nandwani, R., Saunders, J., Johnson, A. M., Pothoulaki, M., Althaus, C., Pickering, K., McKinnon, T., Brice, S., Comer, A., Tostevin, A., Ogwulu, C. (D.), Vojt, G., and Cassell, J. A.
• College/School: College of Medical Veterinary and Life Sciences > School of Health & Wellbeing > MRC/CSO SPHSU; College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing
• Journal Name: BMJ Open
• Publisher: BMJ Publishing Group
• ISSN: 2044-6055
• ISSN (Online): 2044-6055
• Copyright Holders: Copyright © 2020 The Authors
• First Published: First published in BMJ Open 10:e034806
• Publisher Policy: Reproduced under a Creative Commons Licence