Intralesional Cryotherapy With a Argon Gas Based Device for the Treatment of Keloid and Hypertrophic Scars

NCT ID: NCT02063243

Last Updated: 2014-02-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

33 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-01-31

Study Completion Date

2012-01-31

Brief Summary

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This prospective evaluation studies the effectiveness of Intralesional (IL) cryotherapy with a argon gas based device in treating keloids and hypertrophic scars in population consisting of all Fitzpatrick skin type patients

Detailed Description

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Intralesional (IL) cryotherapy is a novel treatment for keloids and hypertrophic scars, in which the scar is frozen from inside. Published results are promising, however only Caucasian patient populations have been studied. This prospective evaluation studies the effectiveness of IL cryotherapy in treating keloids and hypertrophic scars in a population consisting of all Fitzpatrick skin type patients.

Multiple devices are available, mostly based on a simple open system. Closed, argon gas based, systems are highly controlled and provide accurate freezing. However, this technique has never been used for IL cryotherapy for the treatment of keloid or hypertrophic scars. All patients with keloid or hypertrophic scars meeting inclusion criteria were treated with a argon based device called Seednet. Scar quality and possible recurrence are assessed pre- and postsurgery (3, 6 and 12 months) with objective devices determine scar color, scar elasticity, scar volume and patient's skin type. In addition, scars are evaluated using the Patient and Observer Scar Assessment Scale.

Conditions

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Keloid Cicatrix Hypertrophic

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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keloid or hypertrophic scars

All patient including all skin types with keloid or hypertrophic disease receiving Intralesional Cryotherapy

Group Type OTHER

Intralesional cryotherapy

Intervention Type PROCEDURE

Intralesional (IL) cryotherapy is a treatment for keloids and hypertrophic scars, in which the scar is frozen from inside with the use of a cryoneedle

Interventions

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Intralesional cryotherapy

Intralesional (IL) cryotherapy is a treatment for keloids and hypertrophic scars, in which the scar is frozen from inside with the use of a cryoneedle

Intervention Type PROCEDURE

Other Intervention Names

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Seednet

Eligibility Criteria

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Inclusion Criteria

* Keloids, defined as excessive scar tissue raised above skin level and proliferating beyond the confines of the original lesion
* Hypertrophic scars1 older than 12 months and insensitive to other treatments. Keloids were distinguished from hypertrophic scars based on the clinical judgment of experienced plastic surgeons and on the age of the scar (\>1yr)
* A period between previous treatment and IL cryotherapy covered a minimum of 12 weeks
* Patients with all Fitzpatrick17 skin types
* Patients older than 10 years of age

Exclusion Criteria

* pregnancy
* diabetes mellitus
Minimum Eligible Age

10 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Amsterdam UMC, location VUmc

OTHER

Sponsor Role lead

Responsible Party

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Michiel van Leeuwen

MD

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Michiel CE van Leeuwen, MD

Role: PRINCIPAL_INVESTIGATOR

VUmc

Locations

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VUmc

Amsterdam, North Holland, Netherlands

Site Status

Countries

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Netherlands

References

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van Leeuwen MC, Bulstra AE, van Leeuwen PA, Niessen FB. A new argon gas-based device for the treatment of keloid scars with the use of intralesional cryotherapy. J Plast Reconstr Aesthet Surg. 2014 Dec;67(12):1703-10. doi: 10.1016/j.bjps.2014.08.046. Epub 2014 Aug 27.

Reference Type DERIVED
PMID: 25257046 (View on PubMed)

Related Links

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http://www.vumc.nl

Link Text: homepage VU medical center, hospital Amsterdam, the Netherlands

Other Identifiers

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12/293

Identifier Type: -

Identifier Source: org_study_id

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