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A Trial of Radiofrequency Ablation for Anal Intraepithelial Neoplasia Using the HALO Ablation System (AIN)

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01970787
First Posted: October 28, 2013
Last Update Posted: February 6, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Medtronic - MITG
October 22, 2013
October 28, 2013
April 26, 2016
July 14, 2016
February 6, 2017
March 2013
June 2015   (Final data collection date for primary outcome measure)
Clearance of Anal HSIL (High Grade Squamous Intraepithelial Lesion (HSIL) [ Time Frame: 12 months ]
Participants with histologic clearance of anal HSIL within the ETZ (eligible treatment zone) at 12 months from first RFA treatment
Clearance of HSIL [ Time Frame: 12 months ]
Histologic clearance of HSIL within the ETZ on a subject basis at 12 months from first RFA
Complete list of historical versions of study NCT01970787 on ClinicalTrials.gov Archive Site
  • Feasibility and Ease of Technique [ Time Frame: 12 months ]

    Technical feasibility of applying RFA to the anal canal. Physician's assessment of ablation as optimal (complete ablation) versus sub-optimal (incomplete ablation)in the affected area in the anal canal.

    Data not collected and could not be analyzed

  • Tolerability [ Time Frame: 12 months ]

    Subject tolerability of the RFA procedure as measured by severity. Mild: Awareness of signs and symptoms, but easily tolerated; are of a minor irritant type; causing no loss of time from normal activities; symptoms would not require medication or a medical intervention; asymptomatic lab findings; marginal clinical relevance; signs and symptoms are transient.

    Moderate: Discomfort severe enough to cause interference with usual activities; minimal intervention.

    Severe: Incapacitating with inability to do work or usual activities; signs and symptoms may be of systemic nature or require medical evaluation or treatment.

  • Adverse Events [ Time Frame: 12 months ]
    Any related adverse event occuring in patients enrolled in this study. Event type and relationship to the device or procedure will be measured.
  • Progression of HSIL to Cancer [ Time Frame: 12 months ]
    Histologic progression of HSIL to cancer as measured in biopsies read at the central pathology lab. Data not collected and could not be analyzed.
  • Feasibility and Ease of Technique [ Time Frame: 12 months ]
    Technical feasibility of applying RFA to the anal canal. Physician's assessment of ablation as optimal (complete ablation) versus sub-optimal (incomplete ablation)in the affected area in the anal canal.
  • Tolerability [ Time Frame: 12 months ]

    Subject tolerability of the RFA procedure as measured by severity. Mild: Awareness of signs and symptoms, but easily tolerated; are of a minor irritant type; causing no loss of time from normal activities; symptoms would not require medication or a medical intervention; asymptomatic lab findings; marginal clinical relevance; signs and symptoms are transient.

    Moderate: Discomfort severe enough to cause interference with usual activities; minimal intervention.

    Severe: Incapacitating with inability to do work or usual activities; signs and symptoms may be of systemic nature or require medical evaluation or treatment.

  • Adverse Events [ Time Frame: 12 months ]
    Any related adverse event occuring in patients enrolled in this study. Event type and relationship to the device or procedure will be measured.
  • Progression of HSIL to Cancer [ Time Frame: 12 months ]
    Histologic progression of HSIL to cancer as measured in biopsies read at the central pathology lab.
Not Provided
Not Provided
 
A Trial of Radiofrequency Ablation for Anal Intraepithelial Neoplasia Using the HALO Ablation System
A Trial of Radiofrequency Ablation for Anal Intraepithelial Neoplasia Using the HALO Ablation System
This is a Single-center prospective pilot trial involving up to 22 subjects. This study will assess the feasibility, safety, and efficacy of radiofrequency ablation (RFA) to the anal canal using the FDA cleared HALO Ablation System to eradicate anal HSIL lesions in HIV-negative subjects with intra-anal intraepithelial neoplasia (AIN). The study intervention will demonstrate that a reasonable proportion of subjects will be histologically cleared of their anal HSIL within the ETZ in a tolerable and relatively safe manner
Not Provided
Interventional
Not Provided
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
HIV-negative Subjects With Intra-anal Intraepithelial Neoplasia Containing High-Grade Squamous Intraepithelial Lesions
Device: Radiofrequency Ablation (RFA) using the HALO Ablation System
Other Name: Barrx Ablation System
Experimental: RFA
Assess the feasibility, safety, and efficacy of RF to the anal canal using the HALO Ablation System to eradicate anal HSIL lesions
Intervention: Device: Radiofrequency Ablation (RFA) using the HALO Ablation System
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
22
June 2015
June 2015   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Age 18-75 years
  • HRA 2 to 12 weeks prior to the 0 month RFA visit yielding one or more flat, non-condylomatous biopsy-proven HSILs that are

    1. Located entirely within in the eligible treatment zone
    2. Contiguous with the squamocolumnar junction Eligible treatment zone (ETZ) is defined as
    1. 3 cm above the dentate line to the anocutaneous line
    2. Half of the anorectal circumference (meaning no more than two contiguous quadrants)
  • If female of child-bearing age, negative pregnancy test within 8 weeks of the 0 month RFA visit and declared intent to remain on birth control throughout the trial, or, declaration of infertility defined as subject report of status as post-menopausal or surgically sterile (status post hysterectomy or tubal ligation).
  • HIV negative, ELISA/Western blot test obtained within 12 weeks of the 0 month RFA visit

Exclusion Criteria:

  1. Any biopsy-proven HSIL entirely outside of the ETZ
  2. Any biopsy-proven HSIL partially within the ETZ (for example, an HSIL lesion with extension to the perianal skin)
  3. Any condylomas in the eligible treatment zone > 1/2 cm diameter

    • Note: Condylomas in the eligible treatment zone < 1/2 cm in diameter must be excised or cauterized (not treated topically or with IRC) before or during Visit 1 (0 month RFA visit)

  4. Any anal or rectal pathology requiring treatment including ulcer, fistula, fissure, stenosis or proctitis
  5. History of or present anal or rectal cancer
  6. History of pelvic radiation therapy
  7. History of HPV vaccination or plans to initiate HPV vaccination during the trial
  8. History of ablation or resection therapy within the ETZ other than cauterization or excision of condyloma(s)
  9. History of topical therapy (Imiquimod, 5-FU) within 6 months prior to the 0 month RFA visit within the ETZ
  10. Hemorrhoids > grade II
  11. Fecal incontinence (that the investigator feels may impair healing)
  12. Concurrent disease requiring systemic immunosuppression therapy
  13. Concurrent malignancy requiring systemic therapy
  14. Life expectancy < 2 years
Sexes Eligible for Study: All
18 Years to 75 Years   (Adult, Senior)
No
Contact information is only displayed when the study is recruiting subjects
United States
 
 
NCT01970787
B-250
No
Not Provided
Not Provided
Medtronic - MITG
Medtronic - MITG
Not Provided
Not Provided
Medtronic - MITG
December 2016

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP