Hidden syphilis: new study targets silent spread in women and straight men
NCT ID NCT07300254
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study aims to understand how syphilis bacteria spread from people without visible symptoms, focusing on women and men who have sex with women only—groups often overlooked in past research. Researchers will collect swabs and blood samples from 480 participants with early syphilis to check if live bacteria are present in the mouth, anus, vagina, or urine. The goal is to find out if asymptomatic transmission is possible, which could help improve prevention efforts.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this study could clarify how syphilis spreads without symptoms, potentially improving prevention strategies for understudied groups.
What could go wrong
This is an observational study, not a treatment trial. It may not directly change clinical practice, and findings may not apply to all populations.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Email: •••••@•••••
Locations
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Burrell Street Clinic, Guy's and St Thomas'
RECRUITINGLondon, SE10UN, United Kingdom
Contact Phone: •••-•••-•••• Email: •••••@•••••
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Foundation for Professional Development
NOT_YET_RECRUITINGPretoria, 0184, South Africa
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Jefferiss Clinic St Mary's Hospital, Imperial College London
RECRUITINGLondon, W21DL, United Kingdom
Contact Phone: •••-•••-•••• Email: •••••@•••••
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London School of Hygiene & Tropical Medicine
ACTIVE_NOT_RECRUITINGLondon, WC1E7HT, United Kingdom
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Monash University
ACTIVE_NOT_RECRUITINGMelbourne, Victoria, 3004, Australia
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Mortimer Market Centre
RECRUITINGLondon, WC1E6JB, United Kingdom
Contact Phone: •••-•••-•••• Email: •••••@•••••
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National Institute for Communicable Diseases
NOT_YET_RECRUITINGJohannesburg, 2192, South Africa
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Shanghai Skin Disease Hospital
NOT_YET_RECRUITINGShanghai, Shanghai Municipality, 200443, China
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Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine
NOT_YET_RECRUITINGShanghai, Shanghai Municipality, 200082, China