Self-sampling to Optimize Anal Lesion Outcomes

ConditionAnal Cancer
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age35+
SponsorMedical College of Wisconsin

About this trial

The purpose of this research study is to find ways to increase anal cancer screening among people at increased risk for anal cancer. This study will try to find out if persons will do an intervention (self-sampling of the anal canal) and if it affects cytology and high-resolution anoscopy (HRA) appointment attendance. Secondarily, the study will assess if a person who gets their choice of either self-sampling or healthcare provider sampling affects clinic attendance.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Age ≥ 35 years for those who are HIV-positive or ≥ 45 years for those who are HIV-negative.

A cisgender or transgender sexual minority man, or

A transgender woman who has sex with men.

Resides in Chicago, Houston, or Milwaukee metropolitan area.

Disqualifiers

Was a participant in the PAC Self-Swab Study in Milwaukee.

Currently on anticoagulants, with the exception of aspirin or non-steroidal anti-inflammatory drugs (NSAIDs), e.g., ibuprofen, naproxen.

Diagnosed with hemophilia, cirrhosis with bleeding varices, or thrombocytopenia.

Presence of any contraindicating severe disease or condition, e.g., anal stenosis.

Trial design

Design model

Parallel

Treatments tested in this trial

  • Self-sampling

    Behavioral

    Self-sampling instructions will be provided to participants who will insert the swab into the anus to collect cells. Then the participant will put the swab in a vial of transport fluid for assessment at a laboratory.

  • Nylon-flocked Swab

    Other intervention

    At the cytology appointment, participants may receive self-sampling or clinician sampling with 1 of 2 kinds of swabs. The nylon-flocked swab is the intervention and will be assessed on patient acceptability and patient and clinician ability to collect an adequate sample.

Treatment groups

572 Participants
are divided into 4 treatment groups
Group A: Self-samplingExperimental treatment 1 intervention
Group B: Clinician samplingActive comparator 2 interventions
Group C: Nylon-flocked swabExperimental treatment 1 intervention
Group D: Dacron swabActive comparator 2 interventions

Trial outcomes

Primary outcomes

1

Effect of the self-sampling intervention at cytology

Determine the number of individuals who attend the cytology appointment after exposure to the self-sampling intervention.

Time frame
1 month
2

Effect of self-sampling intervention at high-resolution anoscopy

Determine the number of individuals who attend the high-resolution anoscopy appointment after exposure to the self-sampling intervention.

Time frame
2 months

Secondary outcomes

1

Effect of the self-sampling intervention at cytology on people with human immunodeficiency virus (HIV)

Determine the number of individuals with HIV who attend the cytology appointment after exposure to the self-sampling intervention.

Time frame
1 month
2

Effect of the self-sampling intervention at high-resolution anoscopy on people with HIV

Determine the number of individuals with HIV who attend the high-resolution anoscopy appointment after exposure to the self-sampling intervention.

Time frame
2 months
3

Effect of the self-sampling intervention at cytology on people randomized to their preferred sampling method

Assess the number of participants who attend their cytology appointment in the group randomized to their preferred sampling method.

Time frame
1 month
4

Effect of the self-sampling intervention at high-resolution anoscopy on people randomized to their preferred sampling method

Assess the number of participants who attend their high-resolution anoscopy appointment in the group randomized to their preferred sampling method.

Time frame
2 months

Other outcomes

1

Effect of the self-sampling intervention among Black individuals at cytology

Determine the number of Black individuals who attend the cytology appointment after exposure to the self-sampling intervention.

Time frame
1 month
2

Effect of the self-sampling intervention among Black individuals at high-resolution anoscopy

Determine the number of Black individuals who attend high-resolution anoscopy appointments after exposure to the self-sampling intervention.

Time frame
2 months
3

Assess the adequacy of nylon-flocked swabs

Determine the number of nylon-flocked swabs that are cytologically adequate (defined as 2000-3000 nucleated squamous cells/mm3).

Time frame
1 month
4

Assess the adequacy of Dacron swabs

Determine the number of Dacron swabs that are cytologically adequate (defined as 2000-3000 nucleated squamous cells/mm3).

Time frame
1 month

Sponsors and contacts

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Medical College of Wisconsin

Lead sponsor

National Cancer Institute (NCI)

Collaborator

University of Chicago

Collaborator

Froedtert Hospital

Collaborator

M.D. Anderson Cancer Center

Collaborator