Chlamydia Prevention Research
This clinical trial is evaluating an investigational vaccine designed to prevent chlamydia infections, a common sexually transmitted infection that often goes undetected due to lack of symptoms. The study aims to determine the safety of the investigational vaccine in adults aged 18 to 44 by comparing it with a placebo.
Study overview
This clinical trial is evaluating an investigational vaccine designed to prevent chlamydia infections, a common sexually transmitted infection that often goes undetected due to lack of symptoms. The study aims to determine the safety of the investigational vaccine in adults aged 18 to 44 by comparing it with a placebo.
This vaccine could offer protection against initial infection and reinfection, potentially reducing the risk of serious health complications related to untreated chlamydia.
Am I eligible?
Participants may be eligible if they:
- Are aged 18-44 years old
- Are not pregnant or breastfeeding
- Are willing to use an approved method of contraception during the study, if applicable
- Can commit to a study of at least 18 months
What taking part involves
Study participation is approximately 18 months long and will require up to 16 in-person visits to our clinic, not including the 2 visits before vaccination, which will be done during our business hours of 9am–5pm, Monday–Friday. There will also be up to 5 phone calls over the 18-month period. Each participant will receive 3 doses of a vaccine for this study which will be given at Day 1, Month 2 and Month 6. Participants will be randomly assigned (by chance) to receive either the investigational vaccine or a placebo, with a 50% chance of receiving either. The study is blinded meaning participants will not know which study group they are in during their participation to avoid bias.
There will be several procedures done throughout the study, including a medical history collection, physical examination and vital signs measurement, ECGs, blood tests, pregnancy tests, urine tests and swab collections. Participants will also be asked to keep an eDiary.
- 1
Enquiry & phone call
We call to explain the study and answer your questions.
- 2
Screening visit
Meet the team and have health checks to confirm eligibility.
- 3
Study visits
Regular visits with expert care and health monitoring.
- 4
Final visit & follow-up
A wrap-up check and a thank-you for helping research.
Still have questions?
Our team is happy to talk it through. Call 1300 742 326.
Frequently asked questions
A clinical trial is a research study involving volunteers that helps researchers evaluate new treatments, medications, medical devices or approaches to healthcare. Clinical trials help determine whether these interventions are safe, effective and appropriate for wider use.
Clinical trials help advance healthcare by showing how treatments work, identifying possible side effects and exploring new ways to prevent, diagnose and manage medical conditions. By taking part, volunteers contribute to knowledge that may benefit people in the future.
Each trial has its own eligibility criteria, which may relate to your age, medical history, health conditions or current medications. Some studies are for people with a specific condition, while others involve healthy volunteers. Our research team can help you understand whether a study may be suitable.
Participant safety and wellbeing are central to clinical research. In Australia, trials must meet strict ethical and regulatory requirements and are reviewed by a Human Research Ethics Committee (HREC). Participants are monitored throughout the study.
All clinical trials involve some uncertainty and level of risk. Before you decide, the research team will explain the known and potential risks, possible benefits and available alternatives.