ClinicalTrials.gg
RecruitingNCT05408117Updated Jun 4, 2026

Impact of Suture Type on Pigment Disturbances in Patients of Skin of Color

An interventional study of 5-0 Polypropylene epidermal suture and 5-0 Fast gut epidermal suture in Scar, sponsored by Melissa Pugliano-Mauro. Recruiting at 3 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-06-04.

Sponsored by Melissa Pugliano-Mauro · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Started Oct 2022; still recruiting 4 years 1 month later.
Phase
Not applicable
Study type
Interventional
Enrollment
34
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The present study assesses if dissolvable (fast gut) or non-dissolvable (polypropylene) epidermal sutures produce better cosmetic results in terms of dyspigmentation and scarring in patients of skin of color. Through a split-wound study design, patients undergoing standard elliptical excisions at least 3 cm in length will receive each suture type. Measurements of dyspigmentation and scarring will be made at 7 days (for the head and neck), 10 days (for the trunk and extremities), and 3 months for all locations.

Read the detailed description

Subjects who consent to the study will have the following information recorded on the date of surgery: age, sex, indication for surgery, surgical site, scar length, size and type of buried intradermal suture, experience of surgeon (attending, fellow or resident), and New Immigration Scale (NIS) skin color. Basic patient medical data pertinent to wound healing/scar formation will be extracted from the medical record including history of hypertrophic scar/keloids, smoking, diabetes mellitus, and immunosuppression.

The subjects will undergo elliptical excision per standard of care. A single polyglactin 910 suture buried intradermal suture will be placed at the center of the wound. If additional buried intradermal sutures are needed, they will be placed equidistant from the center of the wound such that each side has an equivalent number of intradermal sutures. 5-0 polyglactin 910 will be used for wounds on the head and neck and 3-0 or 4-0 polyglactin 910 will be used for wounds on the trunk and extremities.

Following placement of the intradermal sutures, the subject's wound will be demarcated into halves, labeled either "A" or "B." "A" refers to the left or the superior side, and "B" refers to the right or inferior side. Prior to the study commencement, "A=fast gut" will be written on 17 index cards and "B=fast gut" will be written on 17 index cards. The index cards will be sealed in individual envelopes, shuffled to randomize, and stored securely with the study materials. At the time of surgery, the surgeon will randomly select an envelope which indicates which side will receive which suture type (either 5-0 fast absorbing gut or 5-0 polypropylene). This size of epidermal sutures will be used regardless of site of wound. The intervention will be applied sequentially with side A always being closed first. A simple running suture will be used on each half. The surgeon will aim to keep suture technique including spacing and distance from wound edge identical.

Following the procedure, a standard dressing will be applied and wound care will be discussed. Patients will be seen, as is routinely performed clinically, for suture removal for the polypropylene side in 7 days if the closure was on the head and neck and 10 days if the closure was on the trunk or extremities. Any residual component of fast gut suture that has not yet dissolved will be removed by the medical assistant or nurse so that the physician observer is blinded to which sutures were placed on which side. The following information will be collected at this suture removal visit:

  • Photo of the scar
  • Patients will perform the patient portion of the POSAS (Patient and Observer Scar Assessment Scale), a validated scale of scar cosmesis.
  • A co-investigator not present at the time of the surgical procedure will perform the physician portion of the POSAS
  • Scar width will be measured 1 cm from midline on each side of the wound. Measurements will be recorded in 0.5 mm increments.
  • Pain incurred with suture removal will be measured via a 10 point Visual Analog Scale immediately after sutures are removed, with 1 representing no pain and 10, the worst pain imaginable.

Patients will be asked to return for an in person clinic visit 3 months after surgery for subsequent scar assessment. All surgical patients, not just those involved in the research study, have follow up appointments for suture removal at 7-14 days and at 3-6 months, as per physician discretion. This time interval is the standard of care. The following information will be collected at 3 month follow up:

  • Photo of the scar
  • Patient and observer POSAS scores (again, a co-investigator not present at the time of the surgical procedure will perform the physician portion of the POSAS).
  • Dermatoscopic images of each side of the scar and of an area of normal skin. The dermatoscopic images will be used to calculate a skin hyperpigmentation index (SHI) score, a validated objective measure of skin hyperpigmentation (https://shi.skinimageanalysis.com).
  • Scar width will be measured 1 cm from midline on each side of the wound. Measurements will be recorded in 0.5 mm increments.
  • Clinical evidence of surgical site infection, wound disruption, and/or any other postsurgical complications.

Patients who fail to attend the in-person 3 month follow up visit will be contacted by telephone to complete the patient portion of the POSAS and asked to upload photos of the scar to their medical record via MyUPMC. Storage of images of the scars will occur for all patients, not just those participating in the study.

Upon completion of study visits, POSAS, SHI and other clinical data will be analyzed.

02

Conditions studied

  • Scar

Browse trials for

Keywords

  • skin of color
  • split-wound
  • polypropylene
  • fast gut
  • pigmentary disturbance
03

In context

Cicatrix

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

This study's planned enrollment of 34 is below the median of 40 across 512 interventional studies indexed under Cicatrix.

Browse Cicatrix studies →

Lead sponsor

Melissa Pugliano-Mauro is the lead sponsor of 3 studies on the registry; 3 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
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

  1. Age 18 years or older
  2. Undergoing dermatologic surgery with planned standard elliptical excision with wound length of 3 cm or greater. Benign and malignant lesions will be included, including those that have undergone Mohs micrographic surgery prior to standard linear closure. All body sites will be included.
  3. Able to give
  4. Able to return for 3 month follow up
  5. New Immigration Scale (NIS) skin color 4 or greater - The NIS is an 11 point scale, ranging from zero to 10, with zero representing albinism and 10 representing the darkest possible skin.

Exclusion criteria

Exclusion Criteria:

  1. High-tension closures not amenable to 5-0 simple running epidermal sutures
  2. Known allergy to suture material
  3. Pregnant
Terms in these criteria, in plain language(1)

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.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Investigator, Outcomes assessor)
Enrollment
34 participants (estimated)

Study arms

  • Experimental
    A= left/superior half of wound

    Patients with skin of color undergoing dermatologic surgery with planned standard elliptical excision with wound length of 3 cm or greater

    Device: 5-0 Polypropylene epidermal suture · Device: 5-0 Fast gut epidermal suture

  • Experimental
    B= right/inferior half of wound

    Patients with skin of color undergoing dermatologic surgery with planned standard elliptical excision with wound length of 3 cm or greater

    Device: 5-0 Polypropylene epidermal suture · Device: 5-0 Fast gut epidermal suture

Interventions

  • Device5-0 Polypropylene epidermal suture

    Split-wound, intra-individual comparison - half of wound will receive 5-0 polypropylene epidermal suture and half of wound will receive 5-0 fast gut epidermal suture

  • Device5-0 Fast gut epidermal suture

    Split-wound, intra-individual comparison - half of wound will receive 5-0 polypropylene epidermal suture and half of wound will receive 5-0 fast gut epidermal suture

06

What researchers measure

Primary outcomes

  1. POSAS

    Patient and Observer Scar Assessment Scale (POSAS) outcome (6-60 scale). 6 subscales (which assess scar pain, itch, color, stiffness, thickness, and irregularity) comprise the POSAS measure and each are measured 1-10. Subscales will be summed to get a total score out of 60. Higher values represent worse outcomes.

    Time frame: Suture removal date which is 7 days from the procedure if the excision is on the head or neck and 10 days from the procedure if the excision is on the trunk or extremities

  2. POSAS

    Patient and Observer Scar Assessment Scale (POSAS) outcome (6-60 scale). 6 subscales (which assess scar pain, itch, color, stiffness, thickness, and irregularity) comprise the POSAS measure and each are measured 1-10. Subscales will be summed to get a total score out of 60. Higher values represent worse outcomes.

    Time frame: 3 months from procedure

  3. Skin hyperpigmentation index

    1-4 scale, higher value indicates worse outcomes (greater dyspigmentation), lower values represent better outcomes

    Time frame: 3 months from procedure

Secondary outcomes

  1. Scar width

    Using a ruler to measure scar width 1 cm from midline on each side of the wound. Measurements will be recorded in 0.5 mm increments.

    Time frame: Suture removal date which is 7 days from the procedure if the excision is on the head or neck and 10 days from the procedure if the excision is on the trunk or extremities

  2. Scar width

    Using a ruler to measure scar width 1 cm from midline on each side of the wound. Measurements will be recorded in 0.5 mm increments.

    Time frame: 3 months from procedure

  3. Complications

    Incidence of surgical site infection, wound dehiscence, keloids, hematomas, suture abscesses, seromas, necrosis, and suture granulomas. Greater incidence represents worse outcomes.

    Time frame: Suture removal date which is 7 days from the procedure if the excision is on the head or neck and 10 days from the procedure if the excision is on the trunk or extremities

  4. Complications

    Incidence of surgical site infection, wound dehiscence, keloids, hematomas, suture abscesses, seromas, necrosis, and suture granulomas. Greater incidence represents worse outcomes.

    Time frame: 3 months from procedure

07

Study locations

3 of 3 sites recruiting
  • UPMC Presbyterian
    Pittsburgh, Pennsylvania 15213, United States
    Recruiting
    • Melissa Pugliano-Mauro, MD · Contact
  • UPMC St. Margaret
    Pittsburgh, Pennsylvania 15215, United States
    Recruiting
    • Melissa Pugliano-Mauro, MD · Contact
  • UPMC Shadyside Place
    Pittsburgh, Pennsylvania 15232, United States
    Recruiting
    • Melissa Pugliano-Mauro, MD · Contact
08

References and documents

Publications

  • Byrne M, Aly A. The Surgical Suture. Aesthet Surg J. 2019 Mar 14;39(Suppl_2):S67-S72. doi: 10.1093/asj/sjz036. PubMed 30869751 ↗
  • Eisen DB, Zhuang AR, Hasan A, Sharon VR, Bang H, Crispin MK. 5-0 Polypropylene versus 5-0 fast absorbing plain gut for cutaneous wound closure: a randomized evaluator blind trial. Arch Dermatol Res. 2020 Apr;312(3):179-185. doi: 10.1007/s00403-019-02009-5. Epub 2019 Nov 13. PubMed 31724097 ↗
  • Draaijers LJ, Tempelman FR, Botman YA, Tuinebreijer WE, Middelkoop E, Kreis RW, van Zuijlen PP. The patient and observer scar assessment scale: a reliable and feasible tool for scar evaluation. Plast Reconstr Surg. 2004 Jun;113(7):1960-5; discussion 1966-7. doi: 10.1097/01.prs.0000122207.28773.56. PubMed 15253184 ↗
  • Sklar LR, Pourang A, Armstrong AW, Dhaliwal SK, Sivamani RK, Eisen DB. Comparison of Running Cutaneous Suture Spacing During Linear Wound Closures and the Effect on Wound Cosmesis of the Face and Neck: A Randomized Clinical Trial. JAMA Dermatol. 2019 Mar 1;155(3):321-326. doi: 10.1001/jamadermatol.2018.5057. PubMed 30649154 ↗
  • Eilers S, Bach DQ, Gaber R, Blatt H, Guevara Y, Nitsche K, Kundu RV, Robinson JK. Accuracy of self-report in assessing Fitzpatrick skin phototypes I through VI. JAMA Dermatol. 2013 Nov;149(11):1289-94. doi: 10.1001/jamadermatol.2013.6101. PubMed 24048361 ↗

Individual participant data

Plan to share: No

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 Oct 2022 (actual). Primary completion is estimated for Aug 2027, 58 months after the start.

Of 173 non-industry interventional studies with no phase under Cicatrix, half reached primary completion within 20 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 36. This study's planned 58 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
May 30, 2022
First posted
Jun 7, 2022
StartActual
Oct 1, 2022
Primary completionEst.
Aug 29, 2027
CompletionEst.
Oct 1, 2027
Last update
Jun 4, 2026
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 Jun 4, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05408117
Lead sponsor
Melissa Pugliano-Mauro
Responsible party
Melissa Pugliano-Mauro (Assistant Professor, University of Pittsburgh) — Sponsor-investigator
First posted
Jun 7, 2022
Start date
Oct 1, 2022
Primary completion
Aug 29, 2027 (estimated)
Completion
Oct 1, 2027 (estimated)
Last update
Jun 4, 2026

Study contacts

Melissa Pugliano-Mauro, MD
Contact
puglianomauroma@upmc.edu
412-784-7350
Jeffrey M Plowey, MS, ASCP(HTL)
Contact
ploweyjm2@upmc.edu
412-784-7350
Melissa Pugliano-Mauro, MD
principal investigator · University of Pittsburgh Medical Center

Oversight

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

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion