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The Prevent Anal Cancer Self-Swab Study

Annual Anal Sampling Using DNA Screening to Identify Men Who Have Sex With Men at Increased Risk for Anal Cancer

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03489707
Enrollment
253
Registered
2018-04-05
Start date
2020-01-09
Completion date
2023-08-31
Last updated
2024-11-12

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

Conditions

Anal Cancer

Keywords

anal cancer, human papillomavirus

Brief summary

The purpose of this research study is to find ways to screen for anal cancer among gay, bisexual, and other men who have sex with men (MSM) and transgender persons. This study will try to find out if persons will do annual anal cancer screening, what factors are associated with repeated screening, and how this affects a person's decision to have high-resolution anoscopy.

Detailed description

This is a prospective, randomized, two-arm clinical study to evaluate compliance with annual home-based vs clinic-based DNA screening of anal canal exfoliated cells among Milwaukee HIV+ and HIV- men who have sex with men (MSM) and transgender persons aged ≥25 years. At study entry, persons randomized to arm 1 will receive a home-based collection kit in the mail at 0 and 12 months and those in arm 2 will attend a clinic where a clinician will collect the exfoliated cell specimen at 0 and 12 months. Then, persons will receive high-resolution anoscopy (HRA)-directed biopsy to assess precancerous lesions by study arm. We hypothesize that a majority of persons will comply with annual screening with increased compliance among persons in the home-based arm vs clinic-based arm. The proposed research could indicate that annual HPV DNA screening and subsequent HRA are acceptable to MSM and transgender persons; thus, we will determine how high-risk persons are identified for HRA in light of limited HRA resources. The duration of each participant's activities is expected to be 12 months. The study is expected have participant activity from 2019 to 2023.

Interventions

BEHAVIORALHome-based human papillomavirus (HPV) DNA screening

Persons randomized to arm 1 will receive an HPV DNA home-based collection kit in the mail at 0 and 12 months.

BEHAVIORALClinic-based human papillomavirus (HPV) DNA screening

Persons randomized to arm 2 will attend a clinic where a clinician will collect the DNA specimen at 0 and 12 months.

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
The University of Texas Health Science Center, Houston
CollaboratorOTHER
M.D. Anderson Cancer Center
CollaboratorOTHER
Medical College of Wisconsin
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SCREENING
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
25 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Be \> 25 years of age * Sex at birth is male or gender identity is a transgender person * Acknowledge sex with men in the last 5 years, or identify as gay or bisexual * Understand and be willing to give informed consent * Be willing to be randomized and able to comply with the protocol * Spanish and/or English speakers/readers, and * HIV+ or HIV-

Exclusion criteria

* Not acknowledge sex with men in the past five years and not identify as gay or bisexual * Use of anticoagulants other than Aspirin or NSAIDS * Prior diagnosis of anal cancer * Plans to move within 12 months * Not Milwaukee metro residents * Not willing to attend one of the designated study clinics at baseline, or * Inability to give informed consent

Design outcomes

Primary

MeasureTime frameDescription
Compliance With Annual Anal HPV DNA ScreeningBaselineCompliance is assessed by the number of participants who provide specimens for annual anal HPV DNA screening

Secondary

MeasureTime frameDescription
Compliance With Annual Screening Based on HIV Status12 months 12 monthsThe number of participants complying with annual screening with positive or negative HIV status. Compliance is defined as screening at baseline and one year.
Compliance With Annual Screening Based on Race/Ethnicity12 monthsThe number of participants complying with annual screening based on race/ethnicity. Racial and ethnic categories are defined by the NIH as follows: American Indian or Alaska Native, Asian, Black or African American, Hispanic or Latino, Native Hawaiian or Other Pacific Islander, and White. Compliance is defined as screening at baseline and one year.
Number of Participants Attending High-resolution Anoscopy Based on Race/Ethnicity12 monthsThe number of participants attending high-resolution anoscopy based on race/ethnicity. Racial and ethnic categories are defined by the NIH as follows: American Indian or Alaska Native, Asian, Black or African American, Hispanic or Latino, Native Hawaiian or Other Pacific Islander, and White.
Number of Participants Attending High-resolution Anoscopy Based on HIV Status12 monthsThe number of participants attending high-resolution anoscopy based on positive or negative HIV status.
Attendance at High-resolution Anoscopy12 monthsNumber of participants who attend high-resolution anoscopy (HRA)

Other

MeasureTime frameDescription
Human Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).12 monthsThe number of participants that have DNA persistence at 12 months with and without high-grade squamous intraepithelial lesions (HSIL).
Host/Viral Methylation and Its Association With High-grade Squamous Intraepithelial Lesions.12 monthsMean of host/viral methylation score among participants stratified by high-grade squamous intraepithelial lesions. The Score 5 (S5) methylation score is an arithmetic continuous risk score with a minimum value of 0 and no maximum value. Higher methylation scores indicate higher risk for disease. While a theoretical maximum for a methylation score does not exist, one published maximum value for anal cancer is approximately 100. In this publication (Lorincz et al., Methylation of HPV and a tumor suppressor gene reveals anal cancer and precursor lesions, DOI: 10.18632/oncotarget.17984), a cut-off of 7.5 for methylation score identified all anal cancers and HSIL.

Countries

United States

Participant flow

Participants by arm

ArmCount
Home-based Human Papillomavirus (HPV) DNA Screening
Persons randomized to arm 1 will receive an HPV DNA home-based collection kit in the mail at 0 and 12 months. Home-based human papillomavirus (HPV) DNA screening: Persons randomized to arm 1 will receive an HPV DNA home-based collection kit in the mail at 0 and 12 months.
120
Clinic-based Human Papillomavirus (HPV) DNA Screening
Persons randomized to arm 2 will attend a clinic where a clinician will collect the DNA specimen at 0 and 12 months. Clinic-based human papillomavirus (HPV) DNA screening: Persons randomized to arm 2 will attend a clinic where a clinician will collect the DNA specimen at 0 and 12 months.
120
Total240

Withdrawals & dropouts

PeriodReasonFG000FG001
12 MonthsThese individuals simply did not comply with 12-month screening in this compliance study.4257
BaselineThese individuals simply did not comply with baseline screening in this compliance study.1331

Baseline characteristics

CharacteristicHome-based Human Papillomavirus (HPV) DNA ScreeningClinic-based Human Papillomavirus (HPV) DNA ScreeningTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
7 Participants10 Participants17 Participants
Age, Categorical
Between 18 and 65 years
113 Participants110 Participants223 Participants
Age, Continuous46.5 years
STANDARD_DEVIATION 13
44.9 years
STANDARD_DEVIATION 13.9
45.8 years
STANDARD_DEVIATION 13.4
Ethnicity (NIH/OMB)
Hispanic or Latino
15 Participants16 Participants31 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
104 Participants104 Participants208 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants0 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants1 Participants2 Participants
Race (NIH/OMB)
Asian
1 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
26 Participants19 Participants45 Participants
Race (NIH/OMB)
More than one race
6 Participants8 Participants14 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants1 Participants3 Participants
Race (NIH/OMB)
White
84 Participants91 Participants175 Participants
Region of Enrollment
United States
120 participants120 participants240 participants
Sex/Gender, Customized
Man
115 participants112 participants227 participants
Sex/Gender, Customized
Non-binary
2 participants3 participants5 participants
Sex/Gender, Customized
Other
0 participants1 participants1 participants
Sex/Gender, Customized
Trans Man
0 participants1 participants1 participants
Sex/Gender, Customized
Trans Woman
3 participants3 participants6 participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 1200 / 120
other
Total, other adverse events
0 / 1200 / 120
serious
Total, serious adverse events
0 / 1200 / 120

Outcome results

Primary

Compliance With Annual Anal HPV DNA Screening

Compliance is assessed by the number of participants who provide specimens for annual anal HPV DNA screening

Time frame: 12 months

Population: Seventy-eight of 120 in the Home-Based arm and 63 of 120 in the Clinic-based arm complied at 12-months by providing specimens for annual anal HPV DNA screening (Primary Outcome Measure 2).

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Anal HPV DNA ScreeningProvided specimens78 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Anal HPV DNA ScreeningDid not provide specimens42 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Anal HPV DNA ScreeningProvided specimens63 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Anal HPV DNA ScreeningDid not provide specimens57 Participants
Primary

Compliance With Annual Anal HPV DNA Screening

Compliance is assessed by the number of participants who provide specimens for annual anal HPV DNA screening

Time frame: Baseline

Population: One-hundred and seven of 120 in the Home-Based arm and 89 of 120 in the Clinic-based arm complied at Baseline by providing specimens for annual anal HPV DNA screening (Primary Outcome Measure 1).

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Anal HPV DNA ScreeningProvided specimens107 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Anal HPV DNA ScreeningDid not provide specimens13 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Anal HPV DNA ScreeningProvided specimens89 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Anal HPV DNA ScreeningDid not provide specimens31 Participants
Secondary

Attendance at High-resolution Anoscopy

Number of participants who attend high-resolution anoscopy (HRA)

Time frame: 12 months

Population: Sixty-two of 120 home-based participants and 71 of 120 clinic-based participants attended HRA.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Home-based Human Papillomavirus (HPV) DNA ScreeningAttendance at High-resolution AnoscopyAttended HRA62 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningAttendance at High-resolution AnoscopyDid not attend HRA58 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningAttendance at High-resolution AnoscopyAttended HRA71 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningAttendance at High-resolution AnoscopyDid not attend HRA49 Participants
Secondary

Compliance With Annual Screening Based on HIV Status

The number of participants complying with annual screening with positive or negative HIV status. Compliance is defined as screening at baseline and one year.

Time frame: 12 months 12 months

Population: The row totals for each column equal the overall number of participants analyzed (the arm totals/column totals).

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on HIV StatusHIV-positiveProvided specimens27 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on HIV StatusHIV-positiveDid not provide specimens11 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on HIV StatusHIV-negativeProvided specimens51 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on HIV StatusHIV-negativeDid not provide specimens31 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on HIV StatusHIV-negativeDid not provide specimens36 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on HIV StatusHIV-positiveProvided specimens6 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on HIV StatusHIV-negativeProvided specimens57 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on HIV StatusHIV-positiveDid not provide specimens21 Participants
Secondary

Compliance With Annual Screening Based on Race/Ethnicity

The number of participants complying with annual screening based on race/ethnicity. Racial and ethnic categories are defined by the NIH as follows: American Indian or Alaska Native, Asian, Black or African American, Hispanic or Latino, Native Hawaiian or Other Pacific Islander, and White. Compliance is defined as screening at baseline and one year.

Time frame: 12 months

Population: The row totals for each column, equal the overall number of participants analyzed (the arm totals/column totals).

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityWhite/Non HispanicProvided specimens49 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityWhite/Non HispanicDid not provide specimens27 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityBlack/Non-HispanicProvided specimens19 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityBlack/Non-HispanicDid not provide specimens7 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityHispanicProvided specimens9 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityHispanicDid not provide specimens6 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityAsian (Not Hispanic or Latino)Provided specimens0 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityAsian (Not Hispanic or Latino)Did not provide specimens1 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityAmerican Indian/Alaskan Native (Not Hispanic or Latino)Provided specimens0 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityAmerican Indian/Alaskan Native (Not Hispanic or Latino)Did not provide specimens0 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityI don't know/Not ReportedProvided specimens1 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityI don't know/Not ReportedDid not provide specimens1 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityOtherProvided specimens0 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityOtherDid not provide specimens0 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityI don't know/Not ReportedProvided specimens0 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityWhite/Non HispanicProvided specimens50 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityAsian (Not Hispanic or Latino)Did not provide specimens0 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityWhite/Non HispanicDid not provide specimens32 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityOtherProvided specimens1 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityBlack/Non-HispanicProvided specimens6 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityAmerican Indian/Alaskan Native (Not Hispanic or Latino)Provided specimens0 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityBlack/Non-HispanicDid not provide specimens13 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityI don't know/Not ReportedDid not provide specimens0 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityHispanicProvided specimens6 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityAmerican Indian/Alaskan Native (Not Hispanic or Latino)Did not provide specimens1 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityHispanicDid not provide specimens10 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityOtherDid not provide specimens1 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningCompliance With Annual Screening Based on Race/EthnicityAsian (Not Hispanic or Latino)Provided specimens0 Participants
Secondary

Number of Participants Attending High-resolution Anoscopy Based on HIV Status

The number of participants attending high-resolution anoscopy based on positive or negative HIV status.

Time frame: 12 months

Population: The row totals for each column, equal the overall number of participants analyzed (the arm totals/column totals).

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on HIV StatusHIV-positiveAttended HRA20 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on HIV StatusHIV-positiveDid not attend HRA18 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on HIV StatusHIV-negativeAttended HRA42 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on HIV StatusHIV-negativeDid not attend HRA40 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on HIV StatusHIV-negativeDid not attend HRA34 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on HIV StatusHIV-positiveAttended HRA12 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on HIV StatusHIV-negativeAttended HRA59 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on HIV StatusHIV-positiveDid not attend HRA15 Participants
Secondary

Number of Participants Attending High-resolution Anoscopy Based on Race/Ethnicity

The number of participants attending high-resolution anoscopy based on race/ethnicity. Racial and ethnic categories are defined by the NIH as follows: American Indian or Alaska Native, Asian, Black or African American, Hispanic or Latino, Native Hawaiian or Other Pacific Islander, and White.

Time frame: 12 months

Population: The row totals for each column equal the overall number of participants analyzed (the arm totals/column totals).

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityWhite/Non-HispanicAttended HRA41 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityWhite/Non-HispanicDid not attend HRA35 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityBlack/Non-HispanicAttended HRA11 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityBlack/Non-HispanicDid not attend HRA15 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityHispanicAttended HRA9 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityHispanicDid not attend HRA6 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityAsian (Not Hispanic or Latino)Attended HRA0 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityAsian (Not Hispanic or Latino)Did not attend HRA1 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityAmerican Indian/Alaskan Native (Not Hispanic or Latino)Attended HRA0 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityAmerican Indian/Alaskan Native (Not Hispanic or Latino)Did not attend HRA0 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityOther (Not Hispanic or Latino)Attended HRA0 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityOther (Not Hispanic or Latino)Did not attend HRA1 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityI don't know/Not reportedAttended HRA1 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityI don't know/Not reportedDid not attend HRA0 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityOther (Not Hispanic or Latino)Attended HRA2 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityWhite/Non-HispanicAttended HRA54 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityAsian (Not Hispanic or Latino)Did not attend HRA0 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityWhite/Non-HispanicDid not attend HRA28 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityI don't know/Not reportedAttended HRA0 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityBlack/Non-HispanicAttended HRA8 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityAmerican Indian/Alaskan Native (Not Hispanic or Latino)Attended HRA0 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityBlack/Non-HispanicDid not attend HRA11 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityOther (Not Hispanic or Latino)Did not attend HRA0 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityHispanicAttended HRA7 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityAmerican Indian/Alaskan Native (Not Hispanic or Latino)Did not attend HRA1 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityHispanicDid not attend HRA9 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityI don't know/Not reportedDid not attend HRA0 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningNumber of Participants Attending High-resolution Anoscopy Based on Race/EthnicityAsian (Not Hispanic or Latino)Attended HRA0 Participants
Other Pre-specified

Host/Viral Methylation and Its Association With High-grade Squamous Intraepithelial Lesions.

Mean of host/viral methylation score among participants stratified by high-grade squamous intraepithelial lesions. The Score 5 (S5) methylation score is an arithmetic continuous risk score with a minimum value of 0 and no maximum value. Higher methylation scores indicate higher risk for disease. While a theoretical maximum for a methylation score does not exist, one published maximum value for anal cancer is approximately 100. In this publication (Lorincz et al., Methylation of HPV and a tumor suppressor gene reveals anal cancer and precursor lesions, DOI: 10.18632/oncotarget.17984), a cut-off of 7.5 for methylation score identified all anal cancers and HSIL.

Time frame: 12 months

Population: Participants who have both high-resolution anoscopy histology result \& methylation score (n=133 of 240 total participants) are analyzed here, whether or not they were analyzed for high-risk HPV persistence. Participants who do not have both high-resolution anoscopy biopsy histology result \& methylation score = 107 of 240 total participants.

ArmMeasureGroupValue (MEAN)Dispersion
Home-based Human Papillomavirus (HPV) DNA ScreeningHost/Viral Methylation and Its Association With High-grade Squamous Intraepithelial Lesions.≥HSIL6.98 scores on a scaleStandard Deviation 5.89
Home-based Human Papillomavirus (HPV) DNA ScreeningHost/Viral Methylation and Its Association With High-grade Squamous Intraepithelial Lesions.<HSIL3.31 scores on a scaleStandard Deviation 2.92
Clinic-based Human Papillomavirus (HPV) DNA ScreeningHost/Viral Methylation and Its Association With High-grade Squamous Intraepithelial Lesions.≥HSIL6.99 scores on a scaleStandard Deviation 6.7
Clinic-based Human Papillomavirus (HPV) DNA ScreeningHost/Viral Methylation and Its Association With High-grade Squamous Intraepithelial Lesions.<HSIL3.58 scores on a scaleStandard Deviation 2.97
Clinic-based Human Papillomavirus (HPV) DNA Screening Who Have Both Histology & Methylation ScoreHost/Viral Methylation and Its Association With High-grade Squamous Intraepithelial Lesions.≥HSIL6.96 scores on a scaleStandard Deviation 4.99
Clinic-based Human Papillomavirus (HPV) DNA Screening Who Have Both Histology & Methylation ScoreHost/Viral Methylation and Its Association With High-grade Squamous Intraepithelial Lesions.<HSIL3.10 scores on a scaleStandard Deviation 2.9
Other Pre-specified

Human Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).

The number of participants that have DNA persistence at 12 months with and without high-grade squamous intraepithelial lesions (HSIL).

Time frame: 12 months

Population: Only participants who provided a swab at both baseline and 12 months are assessed for high-risk HPV DNA persistence. Only those assessed for high-risk persistence are included the analysis of the number of high-grade squamous intraepithelial lesions.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Home-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).not persistent ≥HSIL3 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).Assessed for persistence60 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).Did not attend HRA (preventing HSIL assessment)58 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).Persistent36 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).not persistent < HSIL21 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).persistent ≥HSIL14 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).Attended HRA62 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).persistent <HSIL22 Participants
Home-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).Not persistent24 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).persistent <HSIL8 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).Not persistent38 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).not persistent ≥HSIL4 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).not persistent < HSIL34 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).Did not attend HRA (preventing HSIL assessment)49 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).Attended HRA71 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).Assessed for persistence55 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).Persistent17 Participants
Clinic-based Human Papillomavirus (HPV) DNA ScreeningHuman Papillomavirus (HPV) DNA Persistence and Its Association With High-grade Squamous Intraepithelial Lesions (HSIL).persistent ≥HSIL9 Participants

Source: ClinicalTrials.gov · Data processed: Feb 17, 2026