Management of Chlamydia Cases in Australia (MoCCA)

Project Details

MOCCAManagement of Chlamydia Cases in Australia (MoCCA) is a National Health and Medical Research Council-funded Partnership Grant that is investigating strategies to strengthen chlamydia management in Australian general practice, with a particular focus on improving partner notification, increasing retesting after treatment to detect reinfection, and earlier detection of complications such as pelvic inflammatory disease (PID) in women.

In the early stages of MoCCA we have focused on better understanding the general practice context for chlamydia management. This has involved interviews and surveys with health consumers, general practitioners, and other general practice staff about how chlamydia infections are managed in general practice.

Drawing on our findings to date we have developed a model of care to support chlamydia management in general practice, which we are currently piloting in some general practice clinics. As part of this model of care we have developed a website which collates the latest best practice chlamydia case management information. You can view the website here:

Study Findings

Interested in our study findings? The following study summaries are available:

Thank you to all who have participated in the project so far.

Interested in participating?

We are recruiting general practice clinics to participate in MoCCA. If you are a GP, practice nurse or practice manager and think your practice might be interested in participating, please contact us at

Background to the project:

Chlamydia trachomatis (‘chlamydia’) is the most commonly diagnosed bacterial sexually transmitted infection (STI) worldwide and can have serious complications - 17% of cases will lead to pelvic inflammatory disease equating to over 30,000 cases per year in Australia. The risk of PID increases up to 4 fold in women who become reinfected, with very high reinfection rates among women in Australia (22% per year). This highlights the importance of strategies to prevent reinfection. Chlamydia can also lead to ectopic pregnancy and tubal factor infertility.

In Australia, general practice is a critical sector for chlamydia control because over 80% of chlamydia cases are diagnosed in this setting. The Australian Chlamydia Control Effectiveness Pilot was the first trial to show that increasing chlamydia screening in general practice will not reduce the burden of chlamydia in the population and identified considerable gaps in chlamydia case management to prevent reinfection. In response to these findings, there is now considerable discussion internationally that chlamydia control policy must prioritise case management through effective partner notification to prevent reinfection, timely re-testing after treatment to detect re-infection earlier and improved detection of PID.

Australian researchers have been at the forefront of research to identify effective innovative interventions for partner notification, chlamydia retesting and PID management in sexual health and family planning clinics.  What is needed now, is to translate these interventions into general practice where the majority of chlamydia infections are diagnosed and managed.

The aim of the project is to reduce the burden of chlamydia infection by scaling up an integrated model of chlamydia case management in general practice. The project objectives are, in Australian general practice, to:

  • Develop and refine an integrated model of chlamydia case management for implementation.
  • Evaluate the clinical uptake, impact and cost-effectiveness of the model.
  • Develop an implementation plan for scaling up the model.

The project commenced in mid-2018 and is due for completion in 2023.

If you have any questions about the study please send us an email at


Chief Investigators:

Professor Jane Hocking

Associate Professor Lena Sanci

Professor Rebecca Guy (Kirby Institute)

Professor Christopher Fairley (Melbourne Sexual Health Centre)

Professor Meredith Temple-Smith

A/Prof David Regan (Kirby Institute)

Dr Natalie Carvalho

Prof Julie Simpson

Prof Basil Donovan (Kirby Institute)

Associate Investigators:

A/Prof Jane Tomnay

Dr Lara Roeske (RACGP)

A/Prof Marcus Chen (Melbourne Sexual Health Centre)

Prof Claudia Estcourt (Glasgow Caledonian University)

Dr David Hawkes (VCS Foundation)


Dr Jane Goller, Research Fellow

Dr Jacqueline Coombe, Research Officer

Helen Bittleston, Research Assistant and PhD Candidate


  • New South Wales Ministry of Health
  • Victorian Government Department of Health
  • Queensland Health
  • North Western Melbourne Primary Health Network
  • Central and Eastern Sydney Primary Health Network
  • Sexual Health Victoria (formerly Family Planning Victoria)
  • Family Planning NSW
  • True Relationships & Reproductive Health
  • VCS Foundation
  • Sydney Sexual Health Centre


NHMRC Partnership Project (APP1150014)

Research Opportunities

This research project is available to PhD students, Honours students to join as part of their thesis.
Please contact the Research Group Leader to discuss your options.

Research Publications

Research Group

Sexual Health

Faculty Research Themes

Infection and Immunology

School Research Themes

Disparities, disadvantage and effective health care, Screening and early detection of disease

Key Contact

For further information about this research, please contact the research group leader.

Department / Centre

Centre for Epidemiology and Biostatistics

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