Hair tests could reveal hidden use of 'Date Rape' drug GHB
NCT ID NCT06137599
First seen Jul 06, 2026 · Last updated Jul 07, 2026 · Updated 1 time
Summary
This study investigates whether GHB is truly the most common drug used in chemical submission (drug-facilitated assault) or if its short detection window in blood and urine hides its real prevalence. Researchers will analyze hair samples from adult victims of suspected chemical submission, looking for GHB and other psychoactive drugs. The goal is to clarify the true role of GHB in these crimes and improve detection methods.
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 this study finds GHB is under-detected, it could change how chemical submission cases are investigated and help more victims get justice.
- What could go wrong
- This is an observational study with a small sample size (143 people) and relies on hair analysis, which may not capture all cases. Results may not apply to all populations.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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143 people
The number who actually took part.
- Started
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Mar 2024
- Finished
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Mar 2026
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Any person suspecting of having been the victim of chemical submission (attack after taking a substance without the victims' knowledge or under threat
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Victims over the age of majority (≥ 18 years) on the day of the alleged events * With a medical history leading to the suspicion of chemical submission: * Presence of evocative clinical signs (amnesia and/or behavioural disorders and/or neurological disorders and/or other somatic disorders, etc.) AND * In the presence of potential criminal acts (suspected or proven assault or attempted assault). * French speaking * Having been informed of the search Exclusion Criteria: * \- Victims who were minors (\<18 years) on the day of the alleged events. * Victims who usually use GHB/GBL recreationally. * Suspecting administration of a harmful substance with no crime or offence committed at the time and no attempted assault * Victims of needle spiking * Victims with very short hair (\<3 cm), bald or shaven heads * Victims who have exceeded the maximum time limit for taking a hair sample (6 months after the event) * Do not speak French * Oppose to participating in the study * Victims presenting a psychotic or cognitive syndrome likely to impair judgement Victims placed under guardianship or legal protection (article L11-22-2 CSP)
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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
Locations
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Elisabeth ALCARAZ
Paris, 75004, France
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Laetitia LASNE
Bondy, 93140, France
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Leila CHAOUACHI
Paris, 75010, France
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