Tooth socket study pulled before it even started

NCT ID NCT02300246

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
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 was designed to test whether a platelet-rich fibrin (PRF) membrane, made from a patient's own blood, could improve healing of the gum and bone after a tooth extraction. It planned to compare 15 sockets covered with the membrane to 15 left to heal naturally. However, the study was withdrawn before any participants were enrolled, so no results are available.

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.

Started

Jul 2014

Finished

Dec 2014

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 aged over 18 years * Healthy patients with indication for dental extraction * Teeth adjacent to the extraction site * Patients willing to cooperate with the study and who have signed the informed consent form. Exclusion Criteria: * Patients showing periapical or periodontal infection * Patients with severe systemic diseases * Patients on medications such as chemotherapy, anticoagulants, corticosteroids, biphosphonates and drugs imunossupressivas * Patients who have chronic diseases decompensated (e.g. hypertension, diabetes, rheumatic diseases, renal, and hepatic) * Patients with bone diseases, metabolic (osteomalacia, hypocalcemia and hypercalcemia).

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As listed by the trial registrant

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

Contacts and locations

Locations

  • Vittorio Moraschini

    Niterói, Rio de Janeiro, 24230126, Brazil