NCT06014619

Brief Summary

Mohs micro-graphic surgery (Mohs) is a tissue-sparing, surgical treatment for different types of skin cancer (e.g. basal cell carcinoma, squamous cell carcinoma, lentigo maligna (melanoma). It is a procedure performed with frozen sections. Slow Mohs, a variant of micro-graphic surgery, is performed by formalin fixation and paraffin-embedded sections. Both in Mohs and Slow Mohs tumor margins are assessed to achieve complete removal. This study aims to investigate the clinical presentation and outcomes (i.e. complications and recurrence rates) in patients treated with Mohs or Slow Mohs in the dermatology department of the Maastricht University Medical Center+ in Maastricht, the Netherlands.

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
500

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Aug 2023

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2023

Completed
14 days until next milestone

First Submitted

Initial submission to the registry

August 15, 2023

Completed
13 days until next milestone

First Posted

Study publicly available on registry

August 28, 2023

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2024

Completed
1.3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2025

Completed
Last Updated

April 4, 2025

Status Verified

March 1, 2025

Enrollment Period

6 months

First QC Date

August 15, 2023

Last Update Submit

April 2, 2025

Conditions

Keywords

Clinical presentationOutcomesMohs micrographic surgerySlow MohsMicrographic surgery

Outcome Measures

Primary Outcomes (2)

  • Incidence of complications

    The incidence of complications after Mohs and Slow Mohs, expressed as absolute numbers and percentages.

    Within 1 month after completion of the surgical intervention.

  • Incidence of recurrence

    The incidence of complications after Mohs and Slow Mohs, expressed as absolute numbers and percentages. Recurrence is defined as disease relapse after completion of treatment.

    Up to 5 year after completion of the surgical intervention.

Secondary Outcomes (2)

  • Hazard ratio of predisposing factors for complications

    Within 1 month after completion of the surgical intervention.

  • Hazard ratio of predisposing factors for recurrence

    Up to 5 year after completion of the surgical intervention.

Study Arms (2)

Mohs Micrographic Surgery

Patients treated with Mohs Micrographic Surgery in the dermatology department of Maastricht University Medical Center +, Maastricht, the Netherlands

Procedure: Mohs surgery

Slow Mohs

Patients treated with Slow Mohs in the dermatology department of Maastricht University Medical Center +, Maastricht, the Netherlands

Procedure: Slow Mohs surgery

Interventions

Mohs surgeryPROCEDURE

Treatment of a skin disease by Mohs micrographic surgery technique (frozen sections).

Also known as: Mohs micrographic surgery, MMS, Mohs
Mohs Micrographic Surgery

Treatment of a skin disease by Slow Mohs technique (formalin fixation and paraffin-embedded sections).

Also known as: Slow Mohs
Slow Mohs

Eligibility Criteria

Age16 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients treated with

You may qualify if:

  • patients with a cutaneous lesion with an indication for Mohs micrographic surgery or Slow Mohs
  • patients who received a treatment with either Mohs or Slow Mohs between 1 july 2017 and 1 july 2023 at the dermatology department of the Maastricht University Medical Center+.

You may not qualify if:

  • None.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Maastricht University Medical Center+

Maastricht, Netherlands

Location

Related Publications (12)

  • van Lee CB, Roorda BM, Wakkee M, Voorham Q, Mooyaart AL, de Vijlder HC, Nijsten T, van den Bos RR. Recurrence rates of cutaneous squamous cell carcinoma of the head and neck after Mohs micrographic surgery vs. standard excision: a retrospective cohort study. Br J Dermatol. 2019 Aug;181(2):338-343. doi: 10.1111/bjd.17188. Epub 2018 Oct 28.

    PMID: 30199574BACKGROUND
  • Lacerda PN, Lange EP, Luna NM, Miot HA, Nogueira VSN, Abbade LPF. Recurrence rate of basal cell carcinoma among different micrographic surgery techniques: systematic review with meta-analysis. J Eur Acad Dermatol Venereol. 2022 Aug;36(8):1178-1190. doi: 10.1111/jdv.18048. Epub 2022 Apr 1.

    PMID: 35274381BACKGROUND
  • Cook JL, Perone JB. A prospective evaluation of the incidence of complications associated with Mohs micrographic surgery. Arch Dermatol. 2003 Feb;139(2):143-52. doi: 10.1001/archderm.139.2.143.

    PMID: 12588220BACKGROUND
  • Nemer KM, Ko JJ, Hurst EA. Complications After Mohs Micrographic Surgery in Patients Aged 85 and Older. Dermatol Surg. 2021 Feb 1;47(2):189-193. doi: 10.1097/DSS.0000000000002452.

    PMID: 32796326BACKGROUND
  • Merritt BG, Lee NY, Brodland DG, Zitelli JA, Cook J. The safety of Mohs surgery: a prospective multicenter cohort study. J Am Acad Dermatol. 2012 Dec;67(6):1302-9. doi: 10.1016/j.jaad.2012.05.041. Epub 2012 Aug 11.

    PMID: 22892283BACKGROUND
  • Alam M, Ibrahim O, Nodzenski M, Strasswimmer JM, Jiang SI, Cohen JL, Albano BJ, Batra P, Behshad R, Benedetto AV, Chan CS, Chilukuri S, Crocker C, Crystal HW, Dhir A, Faulconer VA, Goldberg LH, Goodman C, Greenbaum SS, Hale EK, Hanke CW, Hruza GJ, Jacobson L, Jones J, Kimyai-Asadi A, Kouba D, Lahti J, Macias K, Miller SJ, Monk E, Nguyen TH, Oganesyan G, Pennie M, Pontius K, Posten W, Reichel JL, Rohrer TE, Rooney JA, Tran HT, Poon E, Bolotin D, Dubina M, Pace N, Kim N, Disphanurat W, Kathawalla U, Kakar R, West DP, Veledar E, Yoo S. Adverse events associated with mohs micrographic surgery: multicenter prospective cohort study of 20,821 cases at 23 centers. JAMA Dermatol. 2013 Dec;149(12):1378-85. doi: 10.1001/jamadermatol.2013.6255.

    PMID: 24080866BACKGROUND
  • Basu P, Goldenberg A, Cowan N, Eilers R, Hau J, Jiang SIB. A 4-year retrospective assessment of postoperative complications in immunosuppressed patients following Mohs micrographic surgery. J Am Acad Dermatol. 2019 Jun;80(6):1594-1601. doi: 10.1016/j.jaad.2018.11.032. Epub 2018 Nov 28.

    PMID: 30502411BACKGROUND
  • Patel SA, Liu JJ, Murakami CS, Berg D, Akkina SR, Bhrany AD. Complication Rates in Delayed Reconstruction of the Head and Neck After Mohs Micrographic Surgery. JAMA Facial Plast Surg. 2016 Sep 1;18(5):340-6. doi: 10.1001/jamafacial.2016.0363.

    PMID: 27227423BACKGROUND
  • Huether MJ, Griego RD, Brodland DG, Zitelli JA. Clindamycin for intraincisional antibiotic prophylaxis in dermatologic surgery. Arch Dermatol. 2002 Sep;138(9):1145-8. doi: 10.1001/archderm.138.9.1145.

    PMID: 12224974BACKGROUND
  • Rogers HD, Desciak EB, Marcus RP, Wang S, MacKay-Wiggan J, Eliezri YD. Prospective study of wound infections in Mohs micrographic surgery using clean surgical technique in the absence of prophylactic antibiotics. J Am Acad Dermatol. 2010 Nov;63(5):842-51. doi: 10.1016/j.jaad.2010.07.029. Epub 2010 Aug 30.

    PMID: 20800320BACKGROUND
  • Maragh SL, Brown MD. Prospective evaluation of surgical site infection rate among patients with Mohs micrographic surgery without the use of prophylactic antibiotics. J Am Acad Dermatol. 2008 Aug;59(2):275-8. doi: 10.1016/j.jaad.2008.03.042.

    PMID: 18638628BACKGROUND
  • Xia Y, Cho S, Greenway HT, Zelac DE, Kelley B. Infection rates of wound repairs during Mohs micrographic surgery using sterile versus nonsterile gloves: a prospective randomized pilot study. Dermatol Surg. 2011 May;37(5):651-6. doi: 10.1111/j.1524-4725.2011.01949.x. Epub 2011 Apr 1.

    PMID: 21457390BACKGROUND

MeSH Terms

Conditions

Skin NeoplasmsPostoperative ComplicationsRecurrenceCarcinoma, Basal CellHutchinson's Melanotic Freckle

Interventions

Mohs Surgery

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsSkin DiseasesSkin and Connective Tissue DiseasesPathologic ProcessesPathological Conditions, Signs and SymptomsDisease AttributesCarcinomaNeoplasms, Glandular and EpithelialNeoplasms by Histologic TypeNeoplasms, Basal CellMelanomaNeuroendocrine TumorsNeuroectodermal TumorsNeoplasms, Germ Cell and EmbryonalNeoplasms, Nerve TissueNevi and Melanomas

Intervention Hierarchy (Ancestors)

MicrosurgerySurgical Procedures, OperativeDermatologic Surgical ProceduresPlastic Surgery Procedures

Study Officials

  • K Mosterd, MD, PhD

    Maastricht University Medical Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 15, 2023

First Posted

August 28, 2023

Study Start

August 1, 2023

Primary Completion

February 1, 2024

Study Completion

June 1, 2025

Last Updated

April 4, 2025

Record last verified: 2025-03

Locations