WartsNCT00155584
Topical 5-ALA Photodynamic Therapy for the Treatment of Verruca Vulgaris
An observational study of Warts, run by National Taiwan University Hospital at 1 site in Taiwan.
Trial summary
Photodynamic therapy (PDT) has been developed as a promising new cancer treatment modality, which involves the uptakes of a photosensitizer by tumor cells, followed by the activation of photosensitizer with approximate wavelength of light. Read more about this study
- Who is it for?
- Ages 10 to 80 years
- Conditions the study is for
- Warts
- How many people
- 80 participants
- Where
- 1 siteTaiwan
- Study dates
- Dec 1994to Dec 1996
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 10 to 80 years
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Warts -
Who cannot join
- other skin lesions or combined with infection -
Trial locations and contacts
1 site in 1 country.
Taiwan1 site, 1 recruiting
- Recruiting
National Taiwan University Hospital
Taipei
Hsiung-Fei Chien, MD, Ph.D., 886223123456 ext. 5594, hfchien@ha.mc.ntu.edu.tw
Chin-Tin Chen, Ph.D.
About this study
Official title: Topical 5-Aminolevulinic Acid Photodynamic Therapy for the Treatment of Verruca Vulgaris: Comparison of Red and Green Light-Emitting Diode Array
Photodynamic therapy (PDT) has been developed as a promising new cancer treatment modality, which involves the uptakes of a photosensitizer by tumor cells, followed by the activation of photosensitizer with approximate wavelength of light. The mechanisms of the PDT-induced cytotoxic effect relate to singlet oxygen and other reactive oxygen intermediates generated by PDT, which give rise to cellular stress and cause cell death. Previously, using the homemade LED light source, we have shown that ALA-PDT is effective for the treatment of premalignant lesions such as mucosal dysplasia and carcinoma in situ of oral cavity. Due to the advantages of low cost, high reliability, and portability, LED light source provides an alternative approach for the light irradiation of PDT.
Verruca vulgaris are benign skin papillomas caused by the human papilloma virus (HPV). They are very common and can affect many different sites including the face, hands, feet and genitalia. Although the present therapeutic approaches are more or less effective in eradicating the lesions, relapses are very common. Furthermore, at times the anatomical location and depth of lesions often make the treatment difficult, time-consuming and painful. Therefore, it is necessary to develop new modalities for wart treatment.
The purpose of this clinical trial is to develop topical ALA-PDT as an alternative treatment of wart but without the unwanted side effects of pain and burning. To fulfill this goal, the following works will be performed. First, topical ALA formulation and LED array will be specifically designed and developed for the skin lesions. Second, the efficacy of the ALA formulation designed for wart treatment will be evaluated with in vivo fluorescence imaging system. Third, the therapeutic efficacy of ALA-PDT will be evaluated by using a LED array designed for skin irradiation. Forth, the unwanted side effects of pain and burning will be further compared between red and green LED array.
Read the detailed description
Verruca vulgaris or warts are benign skin papillomas caused by the human papilloma virus (HPV). They are very common and can affect many different sites including the face, hands, feet and genitalia. Although the present therapeutic approaches are more or less effective in eradicating the lesions, scars and relapses are very common. Furthermore, at times the anatomical location and depth of lesions often make the treatment difficult, time-consuming and painful. Therefore, it is necessary to develop new modalities for wart treatment.
Photodynamic therapy (PDT) has been developed as a promising new cancer treatment modality, which involves the uptakes of a photosensitizer by tumor cells, followed by the activation of photosensitizer with approximate wavelength of light. The endogenous conversion of 5-aminolevulinic acid (ALA) to protoporphyrin IX (PpIX) has broadened the use of PDT. The mechanisms of the PDT-induced cytotoxic effect relate to singlet oxygen and other reactive oxygen intermediates generated by PDT, which give rise to cellular stress and cause cell death. Previously, using the homemade LED light source, we have shown that topical ALA-PDT is effective for the treatment of warts. However, the excruciating pain induced by ALA and red LED could be due to deeper penetration of the ALA formulation or the deeper penetration of red light. Thus the pain might be related to the injured nerve fibers underlying the skin. This study is to provide evidence of these two green or red LED efficacy in removing the warts and also their side-effect of pain.
- Conditions
- Warts
- Keywords
- warts, photodynamic therapy, 5-ALA
- Medical subject headings
- Warts
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Sep 2005 (estimated)
- Study startDec 1994
- Study completionDec 1996
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for WartsStudies of the same condition, open and under way.
- More trials run by National Taiwan University HospitalThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Natural history
- Time perspective
- Prospective
- Enrolment
- 80 participants
Sponsor and investigators
- Lead sponsor
- National Taiwan University Hospital
- Sponsor type
- University, hospital or other
- Investigators
- Pan-Chyr Yang, Ph.D., Study director, National Taiwan University Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00155584
- Sponsor's protocol ID
- 28MD01
- Status last verified
- Dec 1994
- First submitted
- 9 Sep 2005
- Last updated
- 12 Sep 2005
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 12 Sep 2005. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Topical 5-Aminolevulinic Acid Photodynamic Therapy for the Treatment of Verruca Vulgaris: Comparison of Red and Green Light-Emitting Diode Array
- ClinicalTrials.gov ID
- NCT00155584
- Acronym / sponsor ID
- 28MD01
- Conditions
- Warts
- Keywords
- warts, photodynamic therapy, 5-ALA
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 80 participants
- Lead sponsor
- National Taiwan University HospitalUniversity, hospital or other
- Study start
- Dec 1994
- Study completion
- Dec 1996
- First posted
- 12 Sep 2005 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Photodynamic therapy (PDT) has been developed as a promising new cancer treatment modality, which involves the uptakes of a photosensitizer by tumor cells, followed by the activation of photosensitizer with approximate wavelength of light. The mechanisms of the PDT-induced cytotoxic effect relate to singlet oxygen and other reactive oxygen intermediates generated by PDT, which give rise to cellular stress and cause cell death. Previously, using the homemade LED light source, we have shown that ALA-PDT is effective for the treatment of premalignant lesions such as mucosal dysplasia and carcinoma in situ of oral cavity. Due to the advantages of low cost, high reliability, and portability, LED light source provides an alternative approach for the light irradiation of PDT.
Verruca vulgaris are benign skin papillomas caused by the human papilloma virus (HPV). They are very common and can affect many different sites including the face, hands, feet and genitalia. Although the present therapeutic approaches are more or less effective in eradicating the lesions, relapses are very common. Furthermore, at times the anatomical location and depth of lesions often make the treatment difficult, time-consuming and painful. Therefore, it is necessary to develop new modalities for wart treatment.
The purpose of this clinical trial is to develop topical ALA-PDT as an alternative treatment of wart but without the unwanted side effects of pain and burning. To fulfill this goal, the following works will be performed. First, topical ALA formulation and LED array will be specifically designed and developed for the skin lesions. Second, the efficacy of the ALA formulation designed for wart treatment will be evaluated with in vivo fluorescence imaging system. Third, the therapeutic efficacy of ALA-PDT will be evaluated by using a LED array designed for skin irradiation. Forth, the unwanted side effects of pain and burning will be further compared between red and green LED array.
Detailed description
Verruca vulgaris or warts are benign skin papillomas caused by the human papilloma virus (HPV). They are very common and can affect many different sites including the face, hands, feet and genitalia. Although the present therapeutic approaches are more or less effective in eradicating the lesions, scars and relapses are very common. Furthermore, at times the anatomical location and depth of lesions often make the treatment difficult, time-consuming and painful. Therefore, it is necessary to develop new modalities for wart treatment.
Photodynamic therapy (PDT) has been developed as a promising new cancer treatment modality, which involves the uptakes of a photosensitizer by tumor cells, followed by the activation of photosensitizer with approximate wavelength of light. The endogenous conversion of 5-aminolevulinic acid (ALA) to protoporphyrin IX (PpIX) has broadened the use of PDT. The mechanisms of the PDT-induced cytotoxic effect relate to singlet oxygen and other reactive oxygen intermediates generated by PDT, which give rise to cellular stress and cause cell death. Previously, using the homemade LED light source, we have shown that topical ALA-PDT is effective for the treatment of warts. However, the excruciating pain induced by ALA and red LED could be due to deeper penetration of the ALA formulation or the deeper penetration of red light. Thus the pain might be related to the injured nerve fibers underlying the skin. This study is to provide evidence of these two green or red LED efficacy in removing the warts and also their side-effect of pain.
Study design
- Observational model
- Natural history
- Time perspective
- Prospective
Who may qualify
- Ages
- 10 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (1 listed)
- Warts -
Key exclusion criteria (1 listed)
- other skin lesions or combined with infection -
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Sep 2005.
Related trials for Warts
RecruitingObservational study
Etiology, Pathogenesis, and Natural History of Idiopathic CD4+ Lymphocytopenia
Idiopathic CD4+ Lymphocytopenia, Cryptococcal Meningitis
Not yet recruiting
Efficacy and Safety of Oral Ivermectin for Genital Warts
Genital Warts
Enrolling by invitationPhase 1/2
Base-Edited Hematopoietic Stem/Progenitor Cell Gene Therapy for Treatment of CXCR4-WHIM
WHIM, Warts
Active, not recruitingPhase 3
Cantharidin Application in Patients With Common Warts (Verruca Vulgaris) (COVE-2)
Common Warts, Common Warts (Verruca Vulgaris)
RecruitingPhase 3
Long-Term Follow-up Study of Cantharidin (YCANTH [VP-102/TO-208]) in Patients With Common Warts (Verruca Vulgaris)
Common Warts (Verruca Vulgaris), Common Warts
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Pan-Chyr Yang, Ph.D. study director
National Taiwan University Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Warts, run by National Taiwan University Hospital at 1 site in Taiwan.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 12 Sep 2005. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Hsiung-Fei Chien, MD, Ph.D. (886223916762, hfchien@ha.mc.ntu.edu.tw), or a site near the patient. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Sep 2005.