NCT05133427

Brief Summary

The overall objective of this study is to demonstrate the safety and efficacy of removal of Basal Cell Carcinoma (BCC) using a new investigational equipment based on high-intensity focused ultrasound. Basal cell carcinoma is the most common cancer in Europe, Australia and the U.S.A. The general upwards age shift in the population in these regions is expected to be accompanied by an increase in the incidence of this type of cancer. There are currently more the 20.000 BCC registrations in Denmark every year, and occurrences on a global scale are counted in several tens of millions per year. Finding new and more effective treatment methods are therefore highly relevant from both a clinical and socioeconomic perspective. The investigational device used in the investigation is a Danish developed system capable of making controlled and targeted thermo-mechanical treatment of small intradermal volumes containing e.g. BCC cells, but without inflicting damage to the surrounding tissue. The investigation involves an evaluation of the safety and efficacy profile 3 months after a single 3-5 minute treatment. Subsequent follow-up of secondary endpoints is done every third month until the end of the study one year after the treatment.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
7mo left

Started Mar 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

2 active sites

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 Progress88%
Mar 2022Dec 2026

First Submitted

Initial submission to the registry

October 29, 2021

Completed
26 days until next milestone

First Posted

Study publicly available on registry

November 24, 2021

Completed
4 months until next milestone

Study Start

First participant enrolled

March 21, 2022

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2026

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Expected
Last Updated

October 3, 2025

Status Verified

September 1, 2025

Enrollment Period

3.9 years

First QC Date

October 29, 2021

Last Update Submit

September 29, 2025

Conditions

Keywords

Basal cell carcinomaBCCSkin cancerHigh intensity focused ultrasoundHIFUDermatology

Outcome Measures

Primary Outcomes (2)

  • Cure Rate

    Cure rate of basal cell carcinoma (de novo or recurrences after conventional treatments, two groups) following treatment with the investigational device. Measured as a binary Yes/No output.

    3 months

  • Severity of short term treatment side effects

    Safety profile after treatment of basal cell carcinoma (de novo or recurrences after conventional treatments, two groups) following treatment with the investigational device. Measured on a 4-point severity score ranging from No side effects (score 1) to Severe side effects (score 4).

    3 months

Secondary Outcomes (2)

  • Severity of adverse events

    12 months

  • Cure Rate

    12 months

Study Arms (1)

Areas with de-novo or recurrent BCC

EXPERIMENTAL

Areas with non-nodular de-novo or recurrent BCC area will be treated by high intensity focused ultrasound.

Device: TOOsonix system ONE-M

Interventions

All selected BCC areas will be treated by high intensity focused ultrasound

Areas with de-novo or recurrent BCC

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subjects of each gender aged 18 years or older at the time of informed consent. There is no upper limit of age.
  • Subjects who have received oral and written study information, accepted participation and signed the informed consent document.
  • Subjects who are willing and mentally and physically capable to understand and follow the treatment and follow-up schedule including post-treatment care instructions.
  • Subjects who are willing to have photographs and images taken of the treated lesions to be used anonymously or coded in evaluations and publications.
  • Subjects, who have histologically and clinically verified basal cell carcinoma either as newly diagnosed non-nodular cancer (one group) or as a recurrent cancer in a local site (another group) previously treated with any method practiced in dermatology clinics, hospital or the primary sector. Tumors of thickness more than 2.0 mm measured by ultrasound or OTC are considered of the "nodular" type. Thus, only tumors of thickness 2.0mm and less are included.

You may not qualify if:

  • Subjects who are less than 18 years at the time of informed consent.
  • Subject is pregnant or lactating at time of first treatment
  • Subjects with extensive, invasive or advanced skin cancer when another method in use such as radiotherapy or Mohs' surgery has priority and offers the patient better opportunity of cure.
  • Cancers on anatomical sites where the ultrasound probe cannot be adapted for anatomical reasons
  • Any systemic disease that according to investigator's assessment may interfere with the spontaneous course of a skin cancer.
  • Any condition predisposing to treatment-related adverse effects or complications from the ultrasound treatment.
  • Subjects with abnormal scar formation
  • Subjects with impaired wound healing
  • Subjects with the basal cell carcinoma under study located nearby (\<5 cm) an implant or a site injected with a dermal filler or paraffin.
  • Subjects with any other acute or chronic condition which, in the opinion of the investigator, could interfere with the conduct of the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Bispebjerg Hospital

Copenhagen, Capital Region, 2400, Denmark

Location

Roskilde Hospital

Roskilde, Region Sjælland, 4000, Denmark

Location

MeSH Terms

Conditions

Carcinoma, Basal CellSkin Neoplasms

Condition Hierarchy (Ancestors)

CarcinomaNeoplasms, Glandular and EpithelialNeoplasms by Histologic TypeNeoplasmsNeoplasms, Basal CellNeoplasms by SiteSkin DiseasesSkin and Connective Tissue Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: The study is a multicenter (two-center), open-label study in humans (hospital outpatients). The study is not comparative with respect to the two study groups; however, it is aimed to pool data if the study groups are statistically comparable. The investigation is performed prior to CE mark to confirm safety and performance of the System ONE-M device when used as intended, i.e. as an non-invasive method to remove non-nodular basal cell carcinoma by 20 MHz high intensity focused ultrasound.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Professor, Chief Physician, Department of Dermatology

Study Record Dates

First Submitted

October 29, 2021

First Posted

November 24, 2021

Study Start

March 21, 2022

Primary Completion

March 1, 2026

Study Completion (Estimated)

December 1, 2026

Last Updated

October 3, 2025

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will not share

Locations