Efficacy and Safety Study of Polyphenon E to Treat External Genital Warts
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ClinicalTrials.gov Identifier: NCT00449982 |
Recruitment Status :
Completed
First Posted : March 21, 2007
Last Update Posted : March 21, 2007
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Condylomata Acuminata | Drug: Polyphenon E Ointment 10%, Polyphenon E Ointment 15% | Phase 3 |
External genital warts are non-malignant tumors caused by infections of the human papillomavirus (HPV), mainly types 6 and 11. Genital wart infections have one of the fastest growing incidence rates of all sexually transmitted diseases, with about 1% of sexually active adults in the United States suffering from this infection and at least 15% with subclinical infection. None of the current treatment options (with exception of interferon) has been subjected to controlled prospective clinical trials, although they are generally regarded as safe and effective. However, one of their major disadvantages is that they are painful and may cause scarring. Additionally recurrence of warts can often be observed. Against this background the study tries to evaluate another effective and well tolerated therapeutic option by using an extract of green tea leaves.
Comparison: Polyphenon E Ointment 10%, Polyphenon E Ointment 15%, placebo
Study Type : | Interventional (Clinical Trial) |
Enrollment : | 480 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double |
Primary Purpose: | Treatment |
Official Title: | A Randomized, Double-Blind, Three-Arm Parallel-Group, Placebo-Controlled Phase 3 Trial to Investigate the Clinical Efficacy and Safety of Polyphenon E in the Treatment of External Genital Warts |
Study Start Date : | July 2003 |
Study Completion Date : | August 2004 |

- Complete clearance of all warts within a maximum of 16 weeks treatment
- Severe local reaction during the treatment period
- Time to complete clearance of all warts, of all baseline warts, and of all new warts
- Partial clearance of warts at the end of treatment
- Recurrence of any wart during the follow-up period
- New warts during treatment and the follow-up period
- Local sings and symptoms at the wart sites
- Related adverse events during the treatment period

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Age >= 18 years at the time of enrollment
- Clinical diagnosis of external genital warts (located genital, inguinal, perineal or perianal)
- At least 2, but no more than 30 external genital warts
- A total wart area between 12 and 600mm²
- Negative pregnancy test and willingness to use effective contraception (for women of child-bearing potential)
- For partners of male patients who are of child-bearing potential: use of effective contraception during the treatment period
- Written informed consent
- Ability to comply with the requirements of the study
Exclusion Criteria:
- Participation in an investigational trail within 30 days prior to enrollment
- Previous participation in a trial investigating Polyphenon E in the treatment of external genital warts
- Treatment of external genital warts within 30 days prior to enrollment and for the whole study duration
- Systemic intake of virostatics within 30 days prior to enrollment and for the whole study duration
- Systemic intake of immunosuppressive or immunomodulatory medication within 30 days prior to enrollment and for the whole study duration
- Current infection with Herpes genitalis or history of Herpes genitalis infection within the last 3 month
- Any current and/or recurrent pathologically relevant genital infections other than genital warts
- Current known acute or chronic infection with HBV or HCV
- Known HIV infection
- Any current uncontrolled infection
- Organ allograft
- For female patients: pregnancy or lactation
- Known allergies against any of the ingredients of the treatments
- Any chronic or acute skin condition susceptible of interfering with the evaluation of the drug effect
- Any chronic condition susceptible, in the opinion of the investigator, of interfering with the conduct of the study
- Internal (vaginal or rectal) warts requiring treatment

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00449982
United States, California | |
Davis, San Diego, California, United States | |
United States, Colorado | |
Denver, Colorado, United States | |
United States, New York | |
New York, New York, United States | |
United States, Oregon | |
Portland, Oregon, United States | |
United States, Texas | |
Houston, Dallas, Austin, Texas, United States | |
United States, Vermont | |
Burlington, Vermont, United States | |
Argentina | |
Buenos Aires, Argentina | |
Chile | |
Santiago, Temuco, Chile | |
Colombia | |
Colombia, Bogota, Medellin, Risaralda, Colombia | |
Mexico | |
Cuautitlan, Mexico, Guadalajara, Durango, Ciliacan, Puebla, Mexico | |
Peru | |
Lima, Calao, Peru | |
Romania | |
Bucaresti, Brasov, Iasi, Cluj-Napoca, Romania |
Principal Investigator: | Karl R. Beutner, M.D., Ph.D. | Solano Clinical Research, 635 Anderson Road #17, Davis CA 95616, USA |
ClinicalTrials.gov Identifier: | NCT00449982 |
Other Study ID Numbers: |
CT 1018 |
First Posted: | March 21, 2007 Key Record Dates |
Last Update Posted: | March 21, 2007 |
Last Verified: | March 2007 |
Genital warts Condylomata acuminata Human Papillomavirus Polyphenon E |
Green tea extract Vulva Penis Anus |
Condylomata Acuminata Sexually Transmitted Diseases, Viral Sexually Transmitted Diseases Communicable Diseases Infections Warts Papillomavirus Infections |
DNA Virus Infections Virus Diseases Skin Diseases, Viral Tumor Virus Infections Skin Diseases, Infectious Skin Diseases |