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Efficacy and safety of trichloroacetic acid vs. electrocautery for the topical treatment of anal intraepithelial neoplasia in HIV-positive patients (TECAIN) – a randomized controlled trial

Efficacy and safety of trichloroacetic acid vs. electrocautery for the topical treatment of anal intraepithelial neoplasia in HIV-positive patients (TECAIN) – a randomized controlled trial - TECAIN

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00009692
Enrollment
560
Registered
2015-11-20
Start date
2015-11-12
Completion date
Unknown
Last updated
2025-04-07

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

Conditions

anal intraepithelial neoplasia Z21

Interventions

Group 1: Treatment of anal intraepithelial neoplasia with Topical 85% trichloroacetic acid (TCA) Group 2: Treatment of anal intraepithelial neoplasia with Electrocautery (ECA)

Sponsors

Universitätsklinikum Essen
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. HIV-seropositive 2. Patients of legal competence and age>= 18 years, 3. Sufficient knowledge of the german language, written and spoken, 4. Patient is willing to show up regularly to therpay and follow-up visits, 5. Clinical visible AIN-lesions which are histologically confirmed (result should not be altder than 2 weeks aufter extraction and extraction should not be more than 16 weeks before Baseline), 6. Informed consent.

Exclusion criteria

Exclusion criteria: 1. Currently diagnosed anal cancer or anal cancer in anamnesis ( in the last 5 years), 2. Acute life-threatening disease, 3. Participation in a proctologic study in the last 30 days, 4. Participation in this study prior to this point, 5. Simultaenous participation in a study which excludes the participation in this study, 6. Simultaenous topic therapy and systemic intake of drugs, which influence the study results, e.g. immunmodulating substances: interferons, imiquimod or systemic glucosteroids, 7. Lactation, 8. Pregnancy 9. Women of child-bearing age without sufficient contraception 10. Known intolerance/contraindication against TCA or ECA, 11. Patients, who require a general anaesthesia for therapy at baseline, 12. Other serious intraanal and proktologic diseases, which require additional treatments, which influence the study outcome, e.g. active M. Crohn, which is locally and sytemical treated with Immunesuppressiva, or active STI-Proktitis 13. Patient, who are vaccinated against HPV before studystart.

Design outcomes

Primary

MeasureTime frame
The main question of the TECAIN-study is, if the alternative therapy of anal cancer precursor (AIN) with trichloraceticacid is not inferior to the current standardtherapy with electorcauterisation. For the evaluation of the question the primary outcome is stated as follows: Therapeutic success is defined as clinically (HRA) and histologically confirmed: -resolution of the AIN (or diagnose of Condolyma accuminata), -regression of the AIN (defined as regeression from AINII/III to AIN I) both 4 weeks after the last treatment within TECAIN or after randomization. Patients not showing up at this mandatory follow-up appointment will be counted as treatment failure.

Secondary

MeasureTime frame
1. Recurrence of AIN at the previously treated sites 6 months after the end of TECAIN treatment and change of anal HPV types. 2. Recrudescence of AIN-Lesions and recrudescence number 3. HPV multiplicity and viral load 4 weeks and 6 months after the end of TECAIN treatment 4. Number of interventions during the 12 weeks initial TECAIN treatment period. 5. Duration of the therapy and the amount of the therapy cost 6. Documentation of pain and adverse events (AE) during TECAIN treatment as well as use of analgetic drugs (type, dosage, frequency, duration).

Countries

Germany

Contacts

Public ContactStefan Esser

Klinik für Dermatologie und Venerologie Universitätsklinikum Essen

Stefan.Esser@uk-essen.de0201 / 723 - 38 78

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026