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Intraoperative Assessment of Surgical Margins Using Confocal Microscopy in Comparison With Reference Extemporaneous Examination

Intraoperative Assessment of Surgical Margins Using Confocal Microscopy in Comparison With Reference Extemporaneous Examination (Pilot Study)

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05935995
Acronym
HISTOBLOC
Enrollment
42
Registered
2023-07-07
Start date
2023-11-28
Completion date
2026-06-21
Last updated
2026-09-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Basal Cell Carcinoma of Skin, Squamous Cell Carcinoma of Head and Neck

Keywords

margin surgical, confocal microscopy, conventional histopathology (H&E)

Brief summary

Study to evaluate the use of confocal microscopy for detecting resection margins in patients undergoing surgery for basal cell carcinoma of skin and squamous Cell Carcinoma of Head and Neck

Interventions

OTHERmicroscopy confocal (Histolog Scanner)

Surgical margins of tumor samples will be examined by conventional histopathology (H\&E) and confocal microscopy (Histolog® scanner, SamanTree Medical, Switzerland). Depending on the histopathological result obtained between the two methods, the patient may benefit directly from early surgery if the experimental result confirms the presence of positive margins (excluding the learning curve). A learning curve will be established over the first fifteen surgeries, enabling surgical teams to gain experience and systematize specimen flattening. This learning curve will also enable reference images to be produced. The procedure will be carried out by the surgeon and the pathologist in the operating room during this phase.

Sponsors

Institut de Cancérologie de Lorraine
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Adult patient ≥18 years old * Squamous cell or basal cell tumor (1 to 4 cm) of mucous or cutaneous origin. * Patient whose surgical indication has been validated in a consultation meeting * Patients with scheduled surgery * WHO\< or =2 * ASA \< 3 * Patient affiliated to the social security system * Patient has understood, signed and dated the consent form.

Exclusion criteria

* History of irradiation in the surgical area * Women who are pregnant or who are breast-feeding. * Persons deprived of their liberty or under guardianship (including curators)

Design outcomes

Primary

MeasureTime frameDescription
Sensitivity and Specificity of Confocal Microscopy Diagnosis Compared to Gold Standard1 dayThe concordance of intraoperative diagnosis between the two methods will be assessed by the condition of the margins of surgical specimens. Diagnostic accuracy will be measured by the sensitivity and specificity of confocal microscopy, using conventional histology reports from extemporaneous examination as the gold standard. * negative margins (absence of tumour cells) ; * positive margins (presence of tumour cells).

Countries

France

Contacts

PRINCIPAL_INVESTIGATORGILLES DOLIVET, MD

Institut de Cancérologie de Lorraine

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 2, 2026