Comparing zinc oxide and petrolatum for healing surgical scars

Zinc Oxide Versus Petrolatum Following Skin Surgery: A Head-to-head, Prospective, Split-scar Study

Early Phase 1 Interventional University of Pittsburgh · NCT03561376

This study is testing whether zinc oxide ointment works better than petrolatum for healing and reducing scars after skin surgery.

Quick facts

PhaseEarly Phase 1
Study typeInterventional
Enrollment30 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Pittsburgh Academic / other
Drugs / interventionschemotherapy
Locations1 site (Pittsburgh, PA, Pennsylvania)
Trial IDNCT03561376 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the effectiveness of zinc oxide ointment compared to petrolatum in promoting healing and minimizing scarring after dermatologic surgery. Patients with linear scars of at least 4.5 cm will apply each ointment to different halves of their scar daily for one month. They will be assessed at multiple follow-up points for scar appearance using the Patient and Observer Scar Assessment Scale (POSAS) and for any post-operative complications. The study aims to provide insights into optimal post-surgical care for scar management.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with linear surgical scars of at least 4.5 cm on non-scalp skin.

Not a fit: Patients with a history of allergy to topical zinc oxide or those with visibly asymmetric scars will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved scar healing and reduced complications for patients after skin surgery.

How similar studies have performed: While zinc oxide is widely used for diaper dermatitis, its application for surgical scars is novel and has not been extensively tested in similar studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. ≥ 18 years of age
2. Linear closure, non-scalp site
3. ≥ 4.5 cm in length (final incision/closure length)
4. End to end symmetry (surgical site is not grossly asymmetric from end to end)
5. Grossly uninfected site

Exclusion Criteria:

1. ≤ 18 years
2. Visibly asymmetric linear scar
3. Grossly infected surgical site
4. History of allergy to topical zinc oxide

Where this trial is running

Pittsburgh, PA, Pennsylvania

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Surgical IncisionSurgery--ComplicationsSurgical WoundSurgical Site InfectionScarHypertrophic Scar
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.