Trial Outcomes & Findings for Treatment in Preventing Anal Cancer in Patients With HIV and Anal High-Grade Lesions (NCT NCT02135419)

NCT ID: NCT02135419

Last Updated: 2024-07-26

Results Overview

Anal cancer incidence is calculated as the number of anal cancer cases detected per 100,000 person years

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

4446 participants

Primary outcome timeframe

Time from randomization to diagnosis of anal cancer, assessed up to 5 years post randomization

Results posted on

2024-07-26

Participant Flow

Participant milestones

Participant milestones
Measure
Arm I (Treatment)
Patients are directed to receive either topical or ablative treatment at the discretion of the clinician. Patients receiving topical treatment apply imiquimod intra-anally, peri-anally or both thrice weekly for up to 16 weeks, fluorouracil twice daily for 5 days every 2 weeks for up to 16 weeks, or trichloroacetic acid every 3 weeks up to 12 weeks. Patients receiving ablative treatment using infrared photocoagulation therapy, hyfrecation/electrocautery (thermal ablation therapy), or laser therapy. Patients may undergo excision under anesthesia if the clinician believes none of the other treatment approaches will be effective. The number and timing of such treatments will be at the discretion of the investigator. Patients with persistent HSIL should continue a protocol-approved treatment or a new protocol treatment should be considered. All participants will have samples collected for laboratory biomarker analysis. imiquimod: Applied topically fluorouracil: Applied topically infrared photocoagulation therapy: Undergo infrared coagulation thermal ablation therapy: Undergo hyfrecation/electrocautery therapy laser therapy: Undergo laser therapy clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Arm II (Active Monitoring) (Closed Since SEP2021)
Patients undergo active monitoring with examinations for clinical observation every 6 months. Every 12 months, patients undergo biopsies of visible lesions. Patients have cytology sampling performed at every visit. All participants will have samples collected for laboratory biomarker analysis. clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Overall Study
STARTED
2227
2219
Overall Study
COMPLETED
2071
2080
Overall Study
NOT COMPLETED
156
139

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Treatment in Preventing Anal Cancer in Patients With HIV and Anal High-Grade Lesions

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Arm I (Treatment)
n=2227 Participants
Patients are directed to receive either topical or ablative treatment at the discretion of the clinician. Patients receiving topical treatment apply imiquimod intra-anally, peri-anally or both thrice weekly for up to 16 weeks, fluorouracil twice daily for 5 days every 2 weeks for up to 16 weeks, or trichloroacetic acid every 3 weeks up to 12 weeks. Patients receiving ablative treatment using infrared photocoagulation therapy, hyfrecation/electrocautery (thermal ablation therapy), or laser therapy. Patients may undergo excision under anesthesia if the clinician believes none of the other treatment approaches will be effective. The number and timing of such treatments will be at the discretion of the investigator. Patients with persistent HSIL should continue a protocol-approved treatment or a new protocol treatment should be considered. All participants will have samples collected for laboratory biomarker analysis. imiquimod: Applied topically fluorouracil: Applied topically infrared photocoagulation therapy: Undergo infrared coagulation thermal ablation therapy: Undergo hyfrecation/electrocautery therapy laser therapy: Undergo laser therapy clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Arm II (Active Monitoring) (Closed Since SEP2021)
n=2219 Participants
Patients undergo active monitoring with examinations for clinical observation every 6 months. Every 12 months, patients undergo biopsies of visible lesions. Patients have cytology sampling performed at every visit. All participants will have samples collected for laboratory biomarker analysis. clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Total
n=4446 Participants
Total of all reporting groups
Age, Continuous
50.9 years
STANDARD_DEVIATION 8.9 • n=5 Participants
50.9 years
STANDARD_DEVIATION 9.0 • n=7 Participants
50.9 years
STANDARD_DEVIATION 8.9 • n=5 Participants
Sex: Female, Male
Female
342 Participants
n=5 Participants
354 Participants
n=7 Participants
696 Participants
n=5 Participants
Sex: Female, Male
Male
1885 Participants
n=5 Participants
1865 Participants
n=7 Participants
3750 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
594 Participants
n=5 Participants
502 Participants
n=7 Participants
1096 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
1582 Participants
n=5 Participants
1665 Participants
n=7 Participants
3247 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
51 Participants
n=5 Participants
52 Participants
n=7 Participants
103 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
11 Participants
n=5 Participants
14 Participants
n=7 Participants
25 Participants
n=5 Participants
Race (NIH/OMB)
Asian
27 Participants
n=5 Participants
26 Participants
n=7 Participants
53 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
4 Participants
n=5 Participants
8 Participants
n=7 Participants
12 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
935 Participants
n=5 Participants
939 Participants
n=7 Participants
1874 Participants
n=5 Participants
Race (NIH/OMB)
White
1017 Participants
n=5 Participants
1016 Participants
n=7 Participants
2033 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
89 Participants
n=5 Participants
98 Participants
n=7 Participants
187 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
144 Participants
n=5 Participants
118 Participants
n=7 Participants
262 Participants
n=5 Participants
Region of Enrollment
Puerto Rico
110 participants
n=5 Participants
110 participants
n=7 Participants
220 participants
n=5 Participants
Region of Enrollment
United States
2117 participants
n=5 Participants
2109 participants
n=7 Participants
4226 participants
n=5 Participants
CD4 count
602 cells/mm^3
n=5 Participants
607 cells/mm^3
n=7 Participants
604 cells/mm^3
n=5 Participants

PRIMARY outcome

Timeframe: Time from randomization to diagnosis of anal cancer, assessed up to 5 years post randomization

Population: Participants who were randomized and received the assigned intervention

Anal cancer incidence is calculated as the number of anal cancer cases detected per 100,000 person years

Outcome measures

Outcome measures
Measure
Arm I (Treatment)
n=2227 Participants
Patients are directed to receive either topical or ablative treatment at the discretion of the clinician. Patients receiving topical treatment apply imiquimod intra-anally, peri-anally or both thrice weekly for up to 16 weeks, fluorouracil twice daily for 5 days every 2 weeks for up to 16 weeks, or trichloroacetic acid every 3 weeks up to 12 weeks. Patients receiving ablative treatment using infrared photocoagulation therapy, hyfrecation/electrocautery (thermal ablation therapy), or laser therapy. Patients may undergo excision under anesthesia if the clinician believes none of the other treatment approaches will be effective. The number and timing of such treatments will be at the discretion of the investigator. Patients with persistent HSIL should continue a protocol-approved treatment or a new protocol treatment should be considered. All participants will have samples collected for laboratory biomarker analysis. imiquimod: Applied topically fluorouracil: Applied topically infrared photocoagulation therapy: Undergo infrared coagulation thermal ablation therapy: Undergo hyfrecation/electrocautery therapy laser therapy: Undergo laser therapy clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Arm II (Active Monitoring) (Closed Since SEP2021)
n=2219 Participants
Patients undergo active monitoring with examinations for clinical observation every 6 months. Every 12 months, patients undergo biopsies of visible lesions. Patients have cytology sampling performed at every visit. All participants will have samples collected for laboratory biomarker analysis. clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Anal Cancer Incidence
173 cases per 100,000 person years
Interval 90.0 to 332.0
402 cases per 100,000 person years
Interval 262.0 to 616.0

SECONDARY outcome

Timeframe: Up to 5 years after randomization

Population: Participants who received assigned intervention

Participants who had at least one adverse event (serious or non-serious)

Outcome measures

Outcome measures
Measure
Arm I (Treatment)
n=2227 Participants
Patients are directed to receive either topical or ablative treatment at the discretion of the clinician. Patients receiving topical treatment apply imiquimod intra-anally, peri-anally or both thrice weekly for up to 16 weeks, fluorouracil twice daily for 5 days every 2 weeks for up to 16 weeks, or trichloroacetic acid every 3 weeks up to 12 weeks. Patients receiving ablative treatment using infrared photocoagulation therapy, hyfrecation/electrocautery (thermal ablation therapy), or laser therapy. Patients may undergo excision under anesthesia if the clinician believes none of the other treatment approaches will be effective. The number and timing of such treatments will be at the discretion of the investigator. Patients with persistent HSIL should continue a protocol-approved treatment or a new protocol treatment should be considered. All participants will have samples collected for laboratory biomarker analysis. imiquimod: Applied topically fluorouracil: Applied topically infrared photocoagulation therapy: Undergo infrared coagulation thermal ablation therapy: Undergo hyfrecation/electrocautery therapy laser therapy: Undergo laser therapy clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Arm II (Active Monitoring) (Closed Since SEP2021)
n=2219 Participants
Patients undergo active monitoring with examinations for clinical observation every 6 months. Every 12 months, patients undergo biopsies of visible lesions. Patients have cytology sampling performed at every visit. All participants will have samples collected for laboratory biomarker analysis. clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Incidence of Adverse Events for Each Treatment
416 Participants
429 Participants

SECONDARY outcome

Timeframe: 4 weeks post randomization

Population: Participants who were randomized on the ANCHOR study and for whom physical symptom scores were obtained at baseline and 4 weeks post-randomization.

The physical symptom score is made up of the sum of responses to whether or not the participant had any of the 9 physical symptoms: anal pain, pain other than anal pain, pain during bowel movements, constipation, bleeding from anus, itching in/around the anus, discharge (wetness) in anal area, burning sensations in the anal area, and urgency for bowel movements. Responses are 0- not at all, 1-a little bit, 2-somewhat, 3-quite a bit, 4-very much. Thus physical symptom score ranges from 0 to 36.

Outcome measures

Outcome measures
Measure
Arm I (Treatment)
n=46 Participants
Patients are directed to receive either topical or ablative treatment at the discretion of the clinician. Patients receiving topical treatment apply imiquimod intra-anally, peri-anally or both thrice weekly for up to 16 weeks, fluorouracil twice daily for 5 days every 2 weeks for up to 16 weeks, or trichloroacetic acid every 3 weeks up to 12 weeks. Patients receiving ablative treatment using infrared photocoagulation therapy, hyfrecation/electrocautery (thermal ablation therapy), or laser therapy. Patients may undergo excision under anesthesia if the clinician believes none of the other treatment approaches will be effective. The number and timing of such treatments will be at the discretion of the investigator. Patients with persistent HSIL should continue a protocol-approved treatment or a new protocol treatment should be considered. All participants will have samples collected for laboratory biomarker analysis. imiquimod: Applied topically fluorouracil: Applied topically infrared photocoagulation therapy: Undergo infrared coagulation thermal ablation therapy: Undergo hyfrecation/electrocautery therapy laser therapy: Undergo laser therapy clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Arm II (Active Monitoring) (Closed Since SEP2021)
n=38 Participants
Patients undergo active monitoring with examinations for clinical observation every 6 months. Every 12 months, patients undergo biopsies of visible lesions. Patients have cytology sampling performed at every visit. All participants will have samples collected for laboratory biomarker analysis. clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Change in Physical Symptom Score From Baseline (2-7 Days Post Randomization) Until 4 Weeks Post Randomization
-2.22 score on a scale
Standard Deviation 4.69
-0.08 score on a scale
Standard Deviation 3.31

OTHER_PRE_SPECIFIED outcome

Timeframe: Up to 5 years after randomization

Descriptive statistics will be used to describe the integration locus of HPV In the invasive cancers and whether they differ from those of the overlying HSIL. Descriptive statistics will also be used to determine if the loci differ in HSIL that have progressed and concurrent HSIL biopsies that did not progress. In each case only tissues that contain HPV 16 will be analyzed.

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Up to 5 years after randomization

Linear models will be fitted for each gene. Moderated t-statistics, fold-change and the associated p values will be calculated for each gene. Since thousands of genes will be tested, false discovery rate (FDR)-adjusted values will be calculated using the Benjamini-Hochberg method. FDR values indicate the expected fraction of falsely declared differentially expressed (DE) genes among the total set of declared DE genes, i.e. FDR = 0.15 would indicate that 15% of the declared DE genes were expected to be false due to experimental noise instead of actual differential expression.

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Up to 5 years after randomization

Biomarkers that are correlated with progression from anal HSIL to anal cancer

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: Up to 5 years after randomization

For each risk factor of interest, Fisher's exact test or Pearson's chi-square test will be used to determine if there is an association. Factors associated with invasive anal cancer at the 0.10 significance level will be incorporated into a logistic regression model to determine if they are independently associated with invasive anal cancer. Cox regression analyses will also be used to evaluate the association between risk factors and time to diagnosis of invasive anal cancer.

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: A-HRSI and self-reported Patient Global Impression of Change (PGIC) scale and ECOG Performance Status (ECOG PS) item were administered at time of enrollment (T1) up until time of trial randomization (T2), and 71-112 days post-randomization (T3).

Participants at follow-up timepoints were categorized into two sets of three groups based on PGIC and ECOG PS responses ("worse," "no change," "better"), with the primary responsiveness analysis using these three groups in a one-way analysis of variance (ANOVA).

Outcome measures

Outcome data not reported

OTHER_PRE_SPECIFIED outcome

Timeframe: A-HRSI completion occurred at 3 time points: Pre-randomization (T1), within 2-7 days (T2) and at 4 weeks of treatment/randomization (T3).

A-HRSI physical symptoms and physical impacts subscale change scores (T3 minus T2) using an analysis of covariance adjusting for the covariate baseline (T1) subscale to test for differences between arms at a one-sided 0.025 significance level with approximately 90% power.

Outcome measures

Outcome data not reported

Adverse Events

Arm I (Treatment)

Serious events: 370 serious events
Other events: 82 other events
Deaths: 55 deaths

Arm II (Active Monitoring) (Closed Since SEP2021)

Serious events: 375 serious events
Other events: 60 other events
Deaths: 48 deaths

Serious adverse events

Serious adverse events
Measure
Arm I (Treatment)
n=2227 participants at risk
Patients are directed to receive either topical or ablative treatment at the discretion of the clinician. Patients receiving topical treatment apply imiquimod intra-anally, peri-anally or both thrice weekly for up to 16 weeks, fluorouracil twice daily for 5 days every 2 weeks for up to 16 weeks, or trichloroacetic acid every 3 weeks up to 12 weeks. Patients receiving ablative treatment using infrared photocoagulation therapy, hyfrecation/electrocautery (thermal ablation therapy), or laser therapy. Patients may undergo excision under anesthesia if the clinician believes none of the other treatment approaches will be effective. The number and timing of such treatments will be at the discretion of the investigator. Patients with persistent HSIL should continue a protocol-approved treatment or a new protocol treatment should be considered. All participants will have samples collected for laboratory biomarker analysis. imiquimod: Applied topically fluorouracil: Applied topically infrared photocoagulation therapy: Undergo infrared coagulation thermal ablation therapy: Undergo hyfrecation/electrocautery therapy laser therapy: Undergo laser therapy clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Arm II (Active Monitoring) (Closed Since SEP2021)
n=2219 participants at risk
Patients undergo active monitoring with examinations for clinical observation every 6 months. Every 12 months, patients undergo biopsies of visible lesions. Patients have cytology sampling performed at every visit. All participants will have samples collected for laboratory biomarker analysis. clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Infections and infestations
Lung Infection
1.4%
31/2227 • Adverse events were collected from randomization until up to 5 years after randomization
1.2%
27/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Infections and Infestations, other
1.2%
27/2227 • Adverse events were collected from randomization until up to 5 years after randomization
1.4%
31/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Neoplasms
2.5%
56/2227 • Adverse events were collected from randomization until up to 5 years after randomization
2.5%
56/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Cardiac disorders
Myocardial Infarction
0.67%
15/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.50%
11/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Cardiac disorders
Chest pain - cardiac
0.40%
9/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.18%
4/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Cardiac disorders
Heart Failure
0.22%
5/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.45%
10/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Sepsis
0.81%
18/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.45%
10/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Skin Infection
0.90%
20/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.77%
17/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Urinary tract infection
0.49%
11/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.18%
4/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Injury, poisoning and procedural complications
Fracture
0.58%
13/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.23%
5/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Injury, poisoning and procedural complications
Injury, poisoning and procedural complications
0.18%
4/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.77%
17/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Psychiatric disorders
Depression
0.31%
7/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.27%
6/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Psychiatric disorders
Suicide attempt
0.18%
4/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.23%
5/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Renal and urinary disorders
Acute kidney injury
0.18%
4/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.41%
9/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Renal and urinary disorders
Chronic kidney disease
0.22%
5/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.27%
6/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Blood and lymphatic system disorders
Anemia
0.18%
4/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.14%
3/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Cardiac disorders
Cardiac arrest
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.32%
7/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Cardiac disorders
Cardiac disorders - other
0.27%
6/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.14%
3/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Abdominal pain
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.14%
3/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Colitis
0.13%
3/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.27%
6/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
enterocolitis
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.18%
4/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Small intestinal obstruction
0.13%
3/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.32%
7/2219 • Adverse events were collected from randomization until up to 5 years after randomization
General disorders
Death NOS
0.58%
13/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.45%
10/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Hepatobiliary disorders
Cholecystitis
0.22%
5/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.27%
6/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Anorectal infecton
0.18%
4/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Appendicitis
0.18%
4/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Appendicitis perforated
0.13%
3/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Bone infection
0.27%
6/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.27%
6/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Bronchial infection
0.13%
3/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Enterocolitis infection
0.18%
4/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.23%
5/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Soft Tissue Infection
0.22%
5/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.18%
4/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Metabolism and nutrition disorders
Dehydration
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.18%
4/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Metabolism and nutrition disorders
Hyperglycemia
0.22%
5/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.18%
4/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Nervous system disorders
Stroke
0.49%
11/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.63%
14/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Nervous system disorders
Seizure
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.23%
5/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Psychiatric disorders
Psychiatric disorders, other
0.18%
4/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Psychiatric disorders
Suicidal ideation
0.18%
4/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.23%
5/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Cardiac disorders
Supraventricular tachycardia
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.18%
4/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Cardiac disorders
Aortic valve disease
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.14%
3/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Blood and lymphatic system disorders
Blood and lymphatic system disorders, other
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Cardiac disorders
Mitral valve disease
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Cardiac disorders
Ventricular arrythmia
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Congenital, familial and genetic disorders
Congenital, familial and genetic disorders, other
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Ear and labyrinth disorders
Vertigo
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Anal hemorrhage
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Colonic Fistula
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Colonic hemorrhage
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Colonic obstruction
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Colonic perforation
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Diarrhea
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.14%
3/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Gastric hemorrhage
0.13%
3/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Gastritis
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Gastrointestinal disorder, other
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.14%
3/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Pancreatitis
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Rectal hemorrhage
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Abdominal infection
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Device related infection
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Joint infection
0.13%
3/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Meningitis
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Pelvic infection
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Shingles
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.14%
3/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Thrush
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Upper Gastrointestinal hemorrhage
0.18%
4/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Vomiting
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
General disorders
Fever
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
General disorders
Flu-like symptoms
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
General disorders
Non-cardiac chest pain
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
General disorders
Pain
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Hepatobiliary disorders
Gallbladder obstruction
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Hepatobiliary disorders
Hepatitis failure
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Immune system disorders
Allergic reaction
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Upper respiratory infection
0.31%
7/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Viremia
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Wound infection
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Injury, poisoning and procedural complications
Ankle fracture
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
General disorders
Sudden death, NOS
0.27%
6/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.14%
3/2219 • Adverse events were collected from randomization until up to 5 years after randomization

Other adverse events

Other adverse events
Measure
Arm I (Treatment)
n=2227 participants at risk
Patients are directed to receive either topical or ablative treatment at the discretion of the clinician. Patients receiving topical treatment apply imiquimod intra-anally, peri-anally or both thrice weekly for up to 16 weeks, fluorouracil twice daily for 5 days every 2 weeks for up to 16 weeks, or trichloroacetic acid every 3 weeks up to 12 weeks. Patients receiving ablative treatment using infrared photocoagulation therapy, hyfrecation/electrocautery (thermal ablation therapy), or laser therapy. Patients may undergo excision under anesthesia if the clinician believes none of the other treatment approaches will be effective. The number and timing of such treatments will be at the discretion of the investigator. Patients with persistent HSIL should continue a protocol-approved treatment or a new protocol treatment should be considered. All participants will have samples collected for laboratory biomarker analysis. imiquimod: Applied topically fluorouracil: Applied topically infrared photocoagulation therapy: Undergo infrared coagulation thermal ablation therapy: Undergo hyfrecation/electrocautery therapy laser therapy: Undergo laser therapy clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Arm II (Active Monitoring) (Closed Since SEP2021)
n=2219 participants at risk
Patients undergo active monitoring with examinations for clinical observation every 6 months. Every 12 months, patients undergo biopsies of visible lesions. Patients have cytology sampling performed at every visit. All participants will have samples collected for laboratory biomarker analysis. clinical observation: Undergo active monitoring (High Resolution Anoscopy \[HRA\]) with biopsies laboratory biomarker analysis: Correlative studies
Infections and infestations
Infections and Infestations, other
1.8%
40/2227 • Adverse events were collected from randomization until up to 5 years after randomization
1.6%
36/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Cardiac disorders
Cardiac Disorders, Other
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Cardiac disorders
Chest pain - cardiac
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Eye disorders
Cataract
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Abdominal pain
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Anal fissure
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Anal hemorrhage
0.18%
4/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Anal pain
0.85%
19/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.14%
3/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Anal ulcer
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Colitis
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Constipation
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Diarrhea
0.13%
3/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Gastrointestinal disorder, other
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Hemorrhoids
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Pancreatitis
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Vomiting
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Anorectal infection
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.09%
2/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Neoplasms, other
0.18%
4/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Surgical and medical procedures
Surgical and Medical procedures, other
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Vascular disorders
Hypertension
0.09%
2/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.18%
4/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Gastrointestinal disorders
Anal fistula
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Lung infection
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Sinusitis
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Skin infection
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Infections and infestations
Upper respiratory infection
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Injury, poisoning and procedural complications
Injury, poisoning and procedural complications, other
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Injury, poisoning and procedural complications
Wound complication
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Metabolism and nutrition disorders
Dehydration
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Metabolism and nutrition disorders
Hyperglycemia
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Musculoskeletal and connective tissue disorders
Back pain
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Nervous system disorders
Cognitive Disturbance
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Nervous system disorders
Transient ischemic attack
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Pregnancy, puerperium and perinatal conditions
Pregnancy, puerperium and perinatal conditions, other
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Renal and urinary disorders
Urinary retention
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Respiratory, thoracic and mediastinal disorders
Bronchospasm
0.00%
0/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.05%
1/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Skin and subcutaneous tissue disorders
Pruritus
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Skin and subcutaneous tissue disorders
Skin ulceration
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization
Skin and subcutaneous tissue disorders
Urticaria
0.04%
1/2227 • Adverse events were collected from randomization until up to 5 years after randomization
0.00%
0/2219 • Adverse events were collected from randomization until up to 5 years after randomization

Additional Information

Dr. Joel Palefsky

University of California, San Francisco

Phone: (415) 476-1574

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place