ClinicalTrials.gg
Active, not recruitingNCT04807179Updated May 7, 2024

Clinical Study to Evaluate Alexandrite Laser for the Treatment of Acne Scars

An interventional study of Experimental: RF Device Arm in Acne Scars, sponsored by Cynosure, Inc.. Active, not recruiting at 2 sites in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2024-05-07.

Sponsored by Cynosure, Inc. (part of Cynosure Lutronic, Inc.) · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Aug 2024, 2 years 3 months ago, but the record still lists the study as active, not recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
39
Allocation
Not applicable
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The intended use of the Alexandrite laser device used in this study is to assess the efficacy and safety of the Alexandrite laser device for the treatment of acne scars on skin types V and VI.

Read the detailed description

Subjects are to be enrolled in this clinical study if they are 18-65 years old. A maximum of 25 subjects will be enrolled at 1 study center. Subjects will receive up to 6 treatments (minimum of 4 treatment visits with an optional 5th and 6th treatment) on the face. Subjects will return for follow up visits at 30 and 90 days post last treatment. All subjects will receive a phone call 1 week after each treatment.

02

Conditions studied

  • Acne Scars

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03

In context

Cicatrix

611 studies on the registry are indexed under Cicatrix; 114 are open to participants now.

This study's enrollment of 39 is close to the median of 40 across 512 interventional studies indexed under Cicatrix.

Browse Cicatrix studies →

Lead sponsor

Cynosure, Inc. is the lead sponsor of 52 studies on the registry; 2 are open to participants now.

Of its 21 completed or terminated interventional studies of FDA-regulated products, 16 (76%) have results posted.

First submitted before Cynosure, Inc. became part of Cynosure Lutronic, Inc..

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • A healthy male or female 18 - 65 years of age.
  • Has acne scars on the face (left, right, or front) and willing to undergo treatments with the study device.
  • Is a skin type V or VI.
  • Understands and accepts obligation not to receive any other procedures on the treatment area through the length of the study.
  • Understands and accepts the obligation and is logistically able to be present for all visits.
  • Is willing to comply with all requirements of the study and sign the document.

Exclusion criteria

Exclusion Criteria:

  • Is pregnant or of and not using medically effective , or has been pregnant in the last 3 months, currently breast feeding or planning a pregnancy during the study.
  • The subject is hypersensitive to light in the near infrared wavelength region.
  • The subject takes medication which is known to increase sensitivity to sunlight.
  • The subject has seizure disorders triggered by light.
  • The subject takes or has taken oral isotretinoin, such as Accutane®, within the last six months.
  • The subject has an active localized or systemic infection, or an open wound in area being treated.
  • The subject has a significant systemic illness, such as lupus, or an illness localized in area being treated.
  • The subject has common acquired nevi that are predisposed to the development of malignant melanoma.
  • The subject has herpes simplex in the area being treated.
  • The subject is receiving or has received gold therapy.
  • The subject is currently enrolled in an drug or device trial, or has received an investigational drug or been treated with an investigational device within in the area to be treated 6 months to entering this study.
  • The subject has any condition or is in a situation which in the investigators opinion may put the subject at significant risk, may confound study results or may interfere significantly with the subject's participation.

Cautionary Criteria:

  • The subject has had unprotected sun exposure within four weeks of treatment, including the use of tanning beds or tanning products, such as creams, lotions and sprays.
  • The subject has a history of /immune deficiency or an auto-immune disorder.
  • The subject has a coagulation disorder or currently using anticoagulation medication, including heavy use of aspirin.
  • The subject is taking medications that alter the wound-healing response or evidence of compromised wound healing.
  • The subject is known to have a history of keloid formation.
  • The subject has a history of skin cancer or suspicious lesions in the treatment area.
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
39 participants (actual)

Study arms

  • Experimental
    Alexandrite Laser

    Single arm, self-controlled

    Device: Experimental: RF Device Arm

Interventions

  • DeviceExperimental: RF Device Arm

    Non-invasive radiofrequency Alexandrite laser

06

What researchers measure

Primary outcomes

  1. Photographic Evaluation of Changes in Treatment Areas

    Photographic evaluation with ECCA (échelle d'évaluation clinique des cicatrices d'acné) grading comparing pre-treatment images to the 90 day follow up images performed by independent reviewers. This scale gives higher scores based on the number of scars, with the description of the scars determining the weighting factor. The scale ranges from 0 to 540, with a lower score meaning less severe scarring.

    Time frame: Baseline and 90 day follow up

Secondary outcomes

  1. Photographic Evaluation of Treatment Areas

    Photographic evaluation with ECCA (échelle d'évaluation clinique des cicatrices d'acné) grading comparing pre-treatment images to the 30 day follow up images performed by independent reviewers. This scale gives higher scores based on the number of scars, with the description of the scars determining the weighting factor. The scale ranges from 0 to 540, with a lower score meaning less severe scarring.

    Time frame: Baseline and 30 day follow up

  2. Blinded evaluation of pre-treatment images vs. follow up images to determine which image is which

    Blind identification of pre-treatment images vs. 30 day follow up images performed by independent reviewers.

    Time frame: Baseline and 30 day follow up

  3. Blinded evaluation of pre-treatment images vs. follow up images to determine which image is which

    Blind identification of pre-treatment images vs. 90 day follow up images performed by independent reviewers.

    Time frame: Baseline and 90 day follow up

  4. Principle Investigator assessment using the Global Aesthetic Improvement Scale (PGAIS)

    Principle Investigator assessment using the Global Aesthetic Improvement Scale (PGAIS) at the 30 day follow up visit. The GAIS scale ranges from 1 to 5, with 1 being "very much improved," 2 being "much improved," 3 being "improved," 4 being "no change," and 5 being "worse."

    Time frame: Baseline and 30 day follow up

  5. Principle Investigator assessment using the Global Aesthetic Improvement Scale (PGAIS)

    Principle Investigator assessment using the Global Aesthetic Improvement Scale (PGAIS) at the 90 day follow up visit. The GAIS scale ranges from 1 to 5, with 1 being "very much improved," 2 being "much improved," 3 being "improved," 4 being "no change," and 5 being "worse."

    Time frame: Baseline and 90 day follow up

  6. Subject assessment using the Global Aesthetic Improvement Scale (SGAIS)

    Subject assessment using the Global Aesthetic Improvement Scale (SGAIS) at the 30 follow up visit. The GAIS scale ranges from 1 to 5, with 1 being "very much improved," 2 being "much improved," 3 being "improved," 4 being "no change," and 5 being "worse."

    Time frame: Baseline and 30 day follow up

  7. Subject assessment using the Global Aesthetic Improvement Scale (SGAIS)

    Subject assessment using the Global Aesthetic Improvement Scale (SGAIS) at the 90 follow up visit. The GAIS scale ranges from 1 to 5, with 1 being "very much improved," 2 being "much improved," 3 being "improved," 4 being "no change," and 5 being "worse."

    Time frame: Baseline and 90 day follow up

  8. Subject satisfaction

    Subject satisfaction rates at the 30 day follow up visit. The subject satisfaction scale ranges from 1 to 6, with 1 being extremely unsatisfied, 2 being dissatisfied, 3 being slightly unsatisfied, 4 being slightly satisfied, 5 being satisfied, and 6 being extremely satisfied.

    Time frame: 30 day follow up

  9. Subject satisfaction

    Subject satisfaction rates at the 90 day follow up visit. The subject satisfaction scale ranges from 1 to 6, with 1 being extremely unsatisfied, 2 being dissatisfied, 3 being slightly unsatisfied, 4 being slightly satisfied, 5 being satisfied, and 6 being extremely satisfied.

    Time frame: 90 day follow up

07

Study locations

2 sites
  • Wallace Skin and Body Institute
    Los Angeles, California 90056, United States
  • Laser & Skin Surgery Center of New York
    New York, New York 10016, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Mar 2021 (actual). Primary completion is estimated for Aug 2024, 40 months after the start.

Of 33 industry-sponsored interventional studies with no phase under Cicatrix, half reached primary completion within 9 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 20. This study's planned 40 months is above that.

Counting every sponsor, half of 206 studies reached it within 18 months; a quarter within 8 and three quarters within 36.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 11, 2021
First posted
Mar 19, 2021
StartActual
Mar 8, 2021
Primary completionEst.
Aug 2, 2024
CompletionEst.
Aug 2, 2024
Last update
May 7, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 7, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04807179
Lead sponsor
Cynosure, Inc.
Responsible party
Sponsor
First posted
Mar 19, 2021
Start date
Mar 8, 2021
Primary completion
Aug 2, 2024 (estimated)
Completion
Aug 2, 2024 (estimated)
Last update
May 7, 2024

Study contacts

Jennifer Civiok
study director · Cynosure, Inc.

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in May 2024. You cannot join it, but the record below documents what was studied.

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Discussion

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