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Vulvar Lichen SclerosusVLSCBCPPTLILNCT02416531

Vulvar Lichen Sclerosus: Comparison Between Clobetasol Propionate, Photodynamic Therapy and Low-Intensity Laser

A study testing Clobetasol propionate, Photodynamic therapy and Low level laser therapy in people with Vulvar Lichen Sclerosus, run by Daniela de Fátima Teixeira da Silva at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

Vulvar lichen sclerosus (VLS) is a lymphocyte-mediated disease of unknown etiology that can cause intense itching as well stenosis, hindering the evacuation and urination. It can also limit the sex life due to severe local pruritus, pain and dyspareunia (pain during sexual intercourse). Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Vulvar Lichen Sclerosus
What is being tested?
Clobetasol propionate, Photodynamic therapy and Low level laser therapy
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteBrazil
Study dates
Jan 2015to Oct 2017
Phase
Interventional
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 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • adult female patients (aged over 18 years);
  • vulvar lichen sclerosus diagnosed histologically;
  • normal level of cortisol confirmed by blood test.

Who cannot join

  • adult female patients under the age of 18;
  • patients with any kind of ongoing cancer and/or AIDS or coagulopathy, pregnant or breastfeeding women;
  • patients using corticosteroids, immunosuppressants or anticoagulants;
  • patients with renal, hepatic or pulmonary-cardiovascular failure;
  • patients who have undergone any kind of organ transplantation in the last three years.

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Hospital Pérola Byington

    São Paulo, São Paulo, 01314000

Other trials in Brazil

About this study

Official title: Vulvar Lichen Sclerosus: Therapeutic Comparison Between Clobetasol Propionate, Photodynamic Therapy and Low-Intensity Laser

Vulvar lichen sclerosus (VLS) is a lymphocyte-mediated disease of unknown etiology that can cause intense itching as well stenosis, hindering the evacuation and urination. It can also limit the sex life due to severe local pruritus, pain and dyspareunia (pain during sexual intercourse). The standard treatment for this disease is the use of topical corticosteroids to reduce the clinical symptoms and to try to increase disease-free intervals. Photodynamic therapy (PDT), a treatment that associates a light radiation with a photosensitizing agent and low-level laser therapy (LLLT) are therapies that can promote effective immunomodulatory responses at the application site by means of photophysical and photochemical phenomena from the molecular to the systemic level, which promote their use in chronic dermatoses. The aim is to study and compare the effects of PDT, LLLT, and topical corticosteroid in VLS evaluating clinical, histological, immunohistochemical and spectroscopic responses. The study will be prospective, randomized, and controlled, in a population of 60 women with histological diagnoses of VLS, enrolled on the outpatient clinic of Genitoscopy Department of the Pérola Byington Hospital in São Paulo. There will be 3 treatments groups: PDT, LLLT and topical corticosteroid, where will be allocated by randomization 20 patients in each one. The clinical course will be monitored by measuring local temperature, itching, clamping (atrophy), and the appearance of the lesion. Histologically, the slides will be classified according to the Hewitt grading and will have the ordering of collagen fibers quantified. Immunohistochemical analysis will be done using the markers IFN-γ, TGF-β, CD4, CD8, IL-1, p53 and Ki-67. Finally, the spectroscopic evaluation will be done by reflectance. Descriptive and inferential statistical analyses will be conducted to compare the groups and for associations between different responses.

Read the detailed description

Dosimetry and Experimental Groups: There is no dosimetric protocol established for the treatment of VLS with PDT, nor with LLLT. According to the literature, energy densities range from 9 to 150 J/cm2 and power densities from 40 to 700 mW/cm2, not to mention work that do not report the dosimetry used. As such, the dosimetry to be used in this study is based on a pilot clinical study performed by our group.

The patients will be randomized into 3 groups with 20 patients in each one:

Group GC: Corticosteroid over the whole vulva. Clobetasol propionate 0.05% ointment applied once daily at a dose of 1 g/application (1 g sachets) for 4 weeks.

Group GPDT: Localized photodynamic therapy at 8 points of the vulva. Methylene blue 0.01% intralesional, λ = 660 ± 10 nm, P = 100 mW, PD = 510 mW/cm2, E = 4 J, ED = 20 J/cm2, t = 40 s, once a week for 4 weeks.

Group GLLLT: Localized low-level laser therapy at 8 points of the vulva. The same parameters as for GPDT, except for the methylene blue, once a week for 4 weeks.

Analyses: The histological and immunohistochemical analyses will be performed before and 30 days after the start of treatment, whereas clinical analysis will be performed weekly on treatment days for the GPDT and GLLLT groups. The control group will not be seen weekly because the standard treatment is performed by the patients themselves, in their own homes, for 30 days as recommended by the International Society for the Study of Vulvar Disease (ISSVD).

After treatments the patients will be followed for verification of recorrence during one year, at minimum.

Being tested
Clobetasol propionate, Photodynamic therapy, Low level laser therapy
Keywords
Vulvar lichen sclerosus, Photodynamic therapy, Low-level laser therapy, Clobetasol propionate
Medical subject headings
Vulvar Lichen Sclerosus

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Clobetasol propionateDrug

    Also called Corticosteroid

    Clobetasol propionate 0.05% ointment applied once daily at a dose of 1 g/application (1 g sachets) for 4 weeks.

  • Photodynamic therapyRadiation

    Also called PDT

    Methylene blue 0.01% intralesional, λ = 660 ± 10 nm, P = 100 mW, PD = 510 mW/cm2, E = 4 J, ED = 20 J/cm2, t = 40 s, once a week for 4 weeks

  • Low level laser therapyRadiation

    Also called LLLT

    λ = 660 ± 10 nm, P = 100 mW, PD = 510 mW/cm2, E = 4 J, ED = 20 J/cm2, t = 40 s, once a week for 4 weeks

Study groups in NCT02416531
Study groupRoleWhat they receive
CorticosteroidActive comparatorClobetasol propionate 0.05% ointment applied once daily at a dose of 1 g/application (1 g sachets) for 4 weeks.
Receives: Drug: Clobetasol propionate
Photodynamic therapyExperimentalMethylene blue 0.01% intralesional, λ = 660 ± 10 nm, P = 100 mW, PD = 510 mW/cm2, E = 4 J, ED = 20 J/cm2, t = 40 s, once a week for 4 weeks.
Receives: Radiation: Photodynamic therapy
Low level laser therapyExperimentalλ = 660 ± 10 nm, P = 100 mW, PD = 510 mW/cm2, E = 4 J, ED = 20 J/cm2, t = 40 s, once a week for 4 weeks.
Receives: Radiation: Low level laser therapy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change from baseline in biopsies at 1 month.

    Biopsies will be performed at two points: at baseline to confirm the VLS and subsequent inclusion in the research protocol, and at the end of 30 days to investigate the prognosis after treatment.

    Measured: Participants will be followed for 1 month during VLS's treatment.

Secondary outcomes (7)
  1. Count cells per mm2 by immunohistochemical reaction of IFN-γ, TGF-β, CD4, CD8, IL-1, p53 and Ki-67.

    Once deparaffinized, the tissue samples will be subjected to antigen retrieval, endogenous enzyme blocking, background blocking, incubations of antibodies, and counter-staining according to the instructions of the manufacturers. The cells that are positively stained by the immunohistochemical reaction will be counted with the aid of ImageJ software (National Institutes of Health, Maryland, USA) by two independent pathologists without prior knowledge of the experimental groups.

    Measured: Participants will be followed for 1 month during VLS's treatment.

  2. Percentage of relative reflectance as assessed by In-Vivo Reflectance Spectroscopy.

    A portable spectrophotometer (400-900 nm) comprising a light source and a fiber-optic probe will be used directly on the surface of the vulvar skin in areas affected by VLS and in healthy areas of the same patients. Relative spectra will be obtained for the wavelengths corresponding to those of the therapeutic window, and the percentage of relative reflectance will be calculated.

    Measured: Participants will be followed for 1 month during VLS's treatment.

  3. Temperature, as assessed by infrared thermographic camera, in Celsius degrees.

    Measurements will be recorded as images in all sessions before, during, and after irradiation to observe the thermal fluctuation in the procedures.

    Measured: Participants will be followed for 1 month during VLS's treatment.

  4. Itching, as assessed by Visual Analog Scale.

    In each session, the patients will be asked about the intensity of vulvar itching to assess its severity and duration, before and after irradiation, according to a visual analog scale.

    Measured: Participants will be followed for 1 month during VLS's treatment.

  5. Clamping, as assessed by digital caliper, in mm.

    The clamping of the lesion to monitor skin atrophy will be done before irradiation at each session, using a digital caliper, transversely and longitudinally in relation to the labia majora.

    Measured: Participants will be followed for 1 month during VLS's treatment.

  6. Area, as assessed by digital camera, in cm2.

    The appearance and area of the lesion will be monitored with a digital camera at every session, before irradiation. To facilitate measurements, a metric scale will be rested on all vulvas for the photos. The areas of the lesions will be quantified using ImageJ software (National Institutes of Health, Maryland, USA).

    Measured: Participants will be followed for 1 month during VLS's treatment.

  7. Collagen birefringence, as assessed by polarized light microscope, in nm.

    The correlation between birefringence and collagen ordering has been used since the 1960s. To the present date, polarized-light microscopy is an efficient method to quantify the change in collagen birefringence due to the effects of different agents. Since atrophy of the skin is a characteristic symptom of patients with VLS, the more detailed study of collagen fibers will elucidate the interaction of radiation with this type of tissue.

    Measured: Participants will be followed for 1 month during VLS's treatment.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Apr 2015 (estimated)
  2. Study startJan 2015
  3. Primary completionAug 2016
  4. Study completionOct 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02416531
Sponsor's protocol ID
Lichen-768168
Acronym
VLSCBCPPTLIL
Status last verified
Oct 2017
First submitted
25 Mar 2015
Last updated
26 Oct 2017
Results posted
No
Data monitoring committee
No

Publications

  • Kreuter A, Wischnewski J, Terras S, Altmeyer P, Stucker M, Gambichler T. Coexistence of lichen sclerosus and morphea: a retrospective analysis of 472 patients with localized scleroderma from a German tertiary referral center. J Am Acad Dermatol. 2012 Dec;67(6):1157-62. doi: 10.1016/j.jaad.2012.04.003. Epub 2012 Apr 24.

    PubMed 22533994
  • Oyama N, Chan I, Neill SM, Hamada T, South AP, Wessagowit V, Wojnarowska F, D'Cruz D, Hughes GJ, Black MM, McGrath JA. Autoantibodies to extracellular matrix protein 1 in lichen sclerosus. Lancet. 2003 Jul 12;362(9378):118-23. doi: 10.1016/S0140-6736(03)13863-9.

    PubMed 12867112
  • Gambichler T, Kammann S, Tigges C, Kobus S, Skrygan M, Meier JJ, Kohler CU, Scola N, Stucker M, Bechara FG, Altmeyer P, Kreuter A. Cell cycle regulation and proliferation in lichen sclerosus. Regul Pept. 2011 Apr 11;167(2-3):209-14. doi: 10.1016/j.regpep.2011.02.003. Epub 2011 Feb 15.

    PubMed 21329728
  • Terlou A, Santegoets LA, van der Meijden WI, Heijmans-Antonissen C, Swagemakers SM, van der Spek PJ, Ewing PC, van Beurden M, Helmerhorst TJ, Blok LJ. An autoimmune phenotype in vulvar lichen sclerosus and lichen planus: a Th1 response and high levels of microRNA-155. J Invest Dermatol. 2012 Mar;132(3 Pt 1):658-66. doi: 10.1038/jid.2011.369. Epub 2011 Nov 24.

    PubMed 22113482
  • Gambichler T, Terras S, Kreuter A, Skrygan M. Altered global methylation and hydroxymethylation status in vulvar lichen sclerosus: further support for epigenetic mechanisms. Br J Dermatol. 2014 Mar;170(3):687-93. doi: 10.1111/bjd.12702.

    PubMed 24164308
  • Perez-Lopez FR, Ceausu I, Depypere H, Erel CT, Lambrinoudaki I, Rees M, Schenck-Gustafsson K, Tremollieres F, van der Schouw YT, Simoncini T; EMAS, Spanish Menopause society. EMAS clinical guide: vulvar lichen sclerosus in peri and postmenopausal women. Maturitas. 2013 Mar;74(3):279-82. doi: 10.1016/j.maturitas.2012.12.006. Epub 2013 Jan 3.

    PubMed 23291001
  • Murphy R. Lichen sclerosus. Dermatol Clin. 2010 Oct;28(4):707-15. doi: 10.1016/j.det.2010.07.006.

    PubMed 20883914
  • Selim MA, Hoang MP. A histologic review of vulvar inflammatory dermatoses and intraepithelial neoplasm. Dermatol Clin. 2010 Oct;28(4):649-67. doi: 10.1016/j.det.2010.07.005. Epub 2010 Aug 30.

    PubMed 20883910
  • Monsalvez V, Rivera R, Vanaclocha F. [Lichen sclerosus]. Actas Dermosifiliogr. 2010 Jan-Feb;101(1):31-8. Spanish.

    PubMed 20109390
  • Brodrick B, Belkin ZR, Goldstein AT. Influence of treatments on prognosis for vulvar lichen sclerosus: facts and controversies. Clin Dermatol. 2013 Nov-Dec;31(6):780-6. doi: 10.1016/j.clindermatol.2013.05.017.

    PubMed 24160287
  • Hantschmann P, Sterzer S, Jeschke U, Friese K. P53 expression in vulvar carcinoma, vulvar intraepithelial neoplasia, squamous cell hyperplasia and lichen sclerosus. Anticancer Res. 2005 May-Jun;25(3A):1739-45.

    PubMed 16033093
  • Thorstensen KA, Birenbaum DL. Recognition and management of vulvar dermatologic conditions: lichen sclerosus, lichen planus, and lichen simplex chronicus. J Midwifery Womens Health. 2012 May-Jun;57(3):260-75. doi: 10.1111/j.1542-2011.2012.00175.x.

    PubMed 22594865
  • Lipkin D, Kwon Y. Therapies and nursing care of women with vulvar dermatologic disorders. J Obstet Gynecol Neonatal Nurs. 2014 Mar-Apr;43(2):246-52. doi: 10.1111/1552-6909.12286. Epub 2014 Feb 6.

    PubMed 24502413
  • Burrows LJ, Creasey A, Goldstein AT. The treatment of vulvar lichen sclerosus and female sexual dysfunction. J Sex Med. 2011 Jan;8(1):219-22. doi: 10.1111/j.1743-6109.2010.02077.x. Epub 2010 Oct 18.

    PubMed 20955314
  • Terras S, Gambichler T, Moritz RK, Stucker M, Kreuter A. UV-A1 phototherapy vs clobetasol propionate, 0.05%, in the treatment of vulvar lichen sclerosus: a randomized clinical trial. JAMA Dermatol. 2014 Jun;150(6):621-7. doi: 10.1001/jamadermatol.2013.7733.

    PubMed 24696010

Questions about this trial

What is this clinical trial studying?

A study testing Clobetasol propionate, Photodynamic therapy and Low level laser therapy in people with Vulvar Lichen Sclerosus, run by Daniela de Fátima Teixeira da Silva at 1 site in Brazil.

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 3 inclusion and 5 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: finished, as of the sponsor's last update on 26 Oct 2017. 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 Brazil. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change from baseline in biopsies at 1 month. (time frame: Participants will be followed for 1 month during VLS's treatment.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02416531, which also lists 22 linked publications.

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 26 Oct 2017.

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