Intradermal Microbotulinum Toxin for Sebum Reduction and Facial Pore Improvement (MICROTOX-PORE)

May 21, 2026 updated by: Instituto de Oftalmología Fundación Conde de Valenciana

Effectiveness of Intradermal Microbotulinum Toxin for the Treatment of Seborrhea and Enlarged Facial Pores: A Prospective Before-and-After Pilot Study

This study aims to evaluate the efficacy and safety of microdoses of botulinum toxin type A (microtoxin) for improving periocular skin quality and reducing fine wrinkles. Botulinum toxin is commonly used in aesthetic medicine; however, its use in microdoses has been proposed to achieve more natural results with fewer adverse effects.

Participants with periocular rhytids will receive intradermal injections of diluted botulinum toxin. Clinical outcomes will include improvement in skin texture, wrinkle reduction, and patient satisfaction. Safety will be assessed by monitoring adverse events.

The findings of this study may help determine whether microtoxin is an effective and safe option for minimally invasive periocular rejuvenation.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This prospective interventional study aims to assess the efficacy and safety of intradermal microdoses of botulinum toxin type A (microtoxin) for the treatment of periocular rhytids. The microtoxin technique involves the administration of highly diluted botulinum toxin in small aliquots injected superficially into the dermis, targeting fine wrinkles and improving overall skin quality without significantly affecting muscle function.

Participants presenting with periocular dynamic and static rhytids will undergo treatment with standardized microtoxin injections. Clinical evaluation will be performed using validated aesthetic scales, photographic documentation, and patient-reported outcomes. The primary outcome measure will be the degree of wrinkle reduction and improvement in skin texture. Secondary outcomes will include patient satisfaction and incidence of adverse events.

Follow-up assessments will be conducted over a defined period to evaluate both efficacy and safety. This study seeks to provide evidence regarding the clinical utility of microtoxin in periocular rejuvenation and to support its use as a minimally invasive alternative to conventional botulinum toxin techniques.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
30

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Mexico
      • Mexico City, Mexico
        • ✔ Instituto de Oftalmología Fundación Conde de Valenciana IAP

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Adults aged 18 to 35 years
  • Both male and female participants
  • Presence of mild to moderate periocular fine wrinkles
  • Willingness to undergo intradermal botulinum toxin injections
  • Ability to provide written informed consent

Exclusion Criteria:

  • Previous botulinum toxin treatment in the periocular area within the last 6 months
  • Known hypersensitivity to botulinum toxin or its components
  • Active skin infection or dermatologic disease in the treatment area
  • Neuromuscular disorders
  • Pregnancy or breastfeeding
  • Use of medications affecting neuromuscular transmission
  • History of eyelid or periocular surgery within the last 6 months

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Microtoxin Treatment
Participants receive intradermal microdoses of botulinum toxin type A (microtoxin) administered in the periocular region for the treatment of fine wrinkles and improvement of skin quality. The intervention consists of diluted botulinum toxin injected superficially using a standardized technique.
Drug: Botulinum Toxin Type A (Dysport®)
Botulinum toxin type A is administered as intradermal microinjections (microtoxin) in the periocular region using a diluted formulation. The injections are performed using a standardized technique targeting superficial dermal layers to improve skin texture and reduce fine wrinkles while minimizing muscle paralysis.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in sebum production (mm²) from baseline to 6 weeks after intradermal botulinum toxin type A treatment
Time Frame: Baseline and 6 weeks after treatment
The primary outcome is the change in sebum production from baseline to 6 weeks after treatment. Sebum production will be measured using oil-absorbing sheets and quantified as the transparent area in mm² under standardized conditions.
Baseline and 6 weeks after treatment

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in patient-reported satisfaction with periocular appearance using FACE-Q
Time Frame: Baseline and 4 weeks after treatment
Patient-reported outcomes will be assessed using the validated FACE-Q Satisfaction with Facial Appearance scale (0-100), which evaluates satisfaction with periocular appearance and overall facial aesthetics. Higher scores indicate greater patient satisfaction and better aesthetic outcomes.
Baseline and 4 weeks after treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Instituto de Oftalmología Fundación Conde de Valenciana

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 24, 2024

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 24, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 24, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 3, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 9, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 13, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 26, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 21, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • MICROTOX-SEBUM-CDV-01
  • IOCV-MICROTOX-2024 (Other Identifier: IOCV-MICROTOX-2024)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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