HealthyPROTAMERNCT01079338
Salivary Proteome and Sensitivity to Bitterness
A study testing caffeine in people with Healthy, run by Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement.
Trial summary
This study aims to establish whether the protein composition of healthy males contribute to their sensitivity to the bitterness of caffeine. Read more about this study
- Who is it for?
- Ages 25 to 45 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Healthy
- What is being tested?
- caffeine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- Not given
- Where
- No sites listed yet
- Study dates
- Start not givento not given
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 25 to 45 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- healthy volunteers
Who cannot join
- smokers
- currently suffering from oral pathologies
- sensory aversion to bitterness
About this study
This study aims to establish whether the protein composition of healthy males contribute to their sensitivity to the bitterness of caffeine.
- Conditions
- Healthy
- Being tested
- caffeine
- Keywords
- sensitivity to caffeine
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
caffeineOther
| Study group | Role | What they receive |
|---|---|---|
| caffeine | Experimental | Not described Receives: Other: caffeine |
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 Mar 2010 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for HealthyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
Sponsor and investigators
- Lead sponsor
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Martine Morzel, PhD, Principal investigator, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01079338
- Sponsor's protocol ID
- AFSSAPS-2009-A00320-57
- Acronym
- PROTAMER
- Status last verified
- Feb 2010
- First submitted
- 2 Mar 2010
- Last updated
- 3 Apr 2026
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 3 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Salivary Proteome and Sensitivity to Bitterness
- ClinicalTrials.gov ID
- NCT01079338
- Acronym / sponsor ID
- PROTAMER / AFSSAPS-2009-A00320-57
- Conditions
- Healthy
- Keywords
- sensitivity to caffeine
- Study type
- Interventional
- Recruitment status
- Completed
- Lead sponsor
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'EnvironnementUniversity, hospital or other
- First posted
- 3 Mar 2010 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study aims to establish whether the protein composition of healthy males contribute to their sensitivity to the bitterness of caffeine.
Study design
- Primary purpose
- Basic science
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| caffeine | Experimental | Other: caffeine |
Who may qualify
- Ages
- 25 to 45 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- healthy volunteers
Key exclusion criteria (3 listed)
- smokers
- currently suffering from oral pathologies
- sensory aversion to bitterness
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| caffeine | Other | caffeine |
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Apr 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Martine Morzel, PhD principal investigator
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
Questions about this trial
What is this clinical trial studying?
A study testing caffeine in people with Healthy, run by Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 3 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Apr 2026.