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Sjögren's study dives deep into immune clues in spit and blood

NCT ID NCT03711214

Knowledge-focused Sponsor: University of Sao Paulo General Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at immune system markers in the saliva and blood of 80 people with primary Sjögren's syndrome, a chronic disease causing dry eyes and mouth. Researchers will check for antibodies that may block a key enzyme and see how gum disease affects symptoms. The goal is to learn more about the disease, not to test a new treatment.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 80 people

The number the study aims to enrol. It can still change while the study runs.

Started

Dec 2018

Expected to finish

Jan 2027

An estimate. End dates often move.

Lead sponsor

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.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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: * Patients with primary Sjögren's syndrome according to 2016 EULAR/ACR Classification Criteria, and healthy people without any rheumatic disease/symptoms of sicca syndrome * Patients regularly followed at the Sjögren's Syndrome outpatient clinic of Rheumatology Division Exclusion Criteria: * Use of drugs that cause oral dryness (mainly antidepressants and antihistamines). * Patients with history of head and neck radiation therapy. * Current smoking. * Pregnancy and/or lactation. * History of periodontal treatment for at least 6 months prior to enrollment.

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Conditions

The condition(s) this trial relates to.

Sjogren syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Sjogren's syndrome

Contacts and locations

Locations

  • Hospital das Clínicas da Faculdade de Medicina da USP

    São Paulo, São Paulo, 05403-000, Brazil

  • Hospital das Clínicas da Faculdade de Medicina da USP

    São Paulo, Brazil

  • Rheumatology Division of Hospital das Clínicas da Faculdade de Medicina da Universidade de Sao Paulo

    São Paulo, São Paulo, 05403-000, Brazil

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