Photodynamic TherapyHerpesNCT04037475
Treatment of Herpes Labialis by Photodynamic Therapy
A study testing photodynamic therapy herpes labialis in people with Photodynamic Therapy and Herpes Simplex, Labial, run by University of Nove de Julho at 1 site in Brazil.
Trial summary
Lesions of herpes labialis are caused by the herpes simplex virus type 1 (HSV-1) and cause pain and aesthetic compromise. It is characterized by the formation of small vesicles that coalesce and rupture forming extremely painful ulcers, that evolve to crusts, dry desquamations until their complete remission. Read more about this study
- Who is it for?
- Ages 12 to 60 yearsHealthy volunteers can take part
- Conditions the study is for
- Photodynamic Therapy, Herpes Simplex, Labial
- What is being tested?
- photodynamic therapy herpes labialis
- Type of treatment
- Injection or infusion, Medical device
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 24 participants
- Where
- 1 siteBrazil
- Study dates
- 1 Jan 2020to 15 Oct 2023
- 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 12 to 60 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Who may be able to join
- Patients of both sex,
- with no predilection for race or socioeconomic status,
- negative medical history
Who cannot join
- Patients with a herpes infection in the dry desquamation stage will be excluded.
- Participants in continuous use of non-steroidal anti-inflammatory drugs and continued corticosteroid therapy for less than 1 week.
- Diabetic participants, smokers
- who need immunosuppressants,
- pregnant women and/or nursing mothers.
- HIV positive,
- hepatitis B or C.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Treatment of Herpes Labialis by Photodynamic Therapy: Controlled, Prospective, Randomized, Double-blind Protocol Study
Lesions of herpes labialis are caused by the herpes simplex virus type 1 (HSV-1) and cause pain and aesthetic compromise. It is characterized by the formation of small vesicles that coalesce and rupture forming extremely painful ulcers, that evolve to crusts, dry desquamations until their complete remission. Currently, the treatment of these lesions is done with acyclovir. Although it diminishes the symptomatology, it causes viral resistance and does not prevent the recurrence of the lesions. It is known that photodynamic therapy (PDT) has numerous advantages, among them: the reduction of the time of remission, and does not cause resistance.
A total of 30 patients with herpes labialis in the prodromal stage of vesicles, ulcers, and crusts will be selected to participate in the study and randomized into two groups: G1 control and G2 experimental. After signing informed consent, patients in group G1 will undergo the standard gold treatment for cold sores with acyclovir and simulated PDT treatment. Patients in the experimental G2 group will be treated simulating the gold standard treatment of herpes labialis (placebo) and PDT.
Read the detailed description
Lesions of herpes labialis are caused by the herpes simplex virus type 1 (HSV-1) and cause pain and aesthetic compromise. It is characterized by the formation of small vesicles that coalesce and rupture forming extremely painful ulcers, that evolve to crusts, dry desquamations until their complete remission. Currently, the treatment of these lesions is done with acyclovir. Although it diminishes the symptomatology, it causes viral resistance and does not prevent the recurrence of the lesions. It is known that photodynamic therapy (PDT) has numerous advantages, among them: the reduction of the time of remission, and does not cause resistance.
Materials and methods: A total of 30 patients with herpes labialis in the prodromal stage of vesicles, ulcers, and crusts will be selected to participate in the study and randomized into two groups: G1 control and G2 experimental. After signing TCLE and TA, patients in group G1 will undergo the standard gold treatment for cold sores with acyclovir and simulated PDT treatment. Patients in the experimental G2 group will be treated simulating the gold standard treatment of herpes labialis (placebo) and PDT. In all patients will be collected saliva samples for analysis of cytokines, and will be performed exfoliative cytology in the lesions. The pain will be assessed through a pain scale and a questionnaire of quality of life-related to oral health (Ohip- 14) will be given to them. Patients will continue to be followed up after 7 days, 1 month, 3 months, 6 months and 1 year and, if there is a recurrence of the lesion, they will contact the researchers.
- Conditions
- Photodynamic Therapy, Herpes Simplex, Labial
- Being tested
- photodynamic therapy herpes labialis
- Keywords
- photodynamic therapy, herpes labialis, herpes simplex, laser
- Medical subject headings
- Herpes Labialis, Herpes Simplex
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
photodynamic therapy herpes labialisDevice
Patients will receive Photodynamic Therapy (PDT), irradiations will be performed with the Laser Duo® red laser diode (MMOptics, São Carlos, SP, Brazil) with a wavelength of 660 nm, with a power of 100 mW, the energy density of 300 J / cm², with energy of 3 J in the center of the lesion for 30 seconds. The laser will be positioned in direct contact with the lesion, perpendicular, applied centrally to each isolated lesion that presents with fixed energy per point of 3J. Wash in abundance with saline solution until the removal of the photosensitizer is complete. All treatment proposed in group 1 (simulation of PDT + delivery of aciclovir cream) in each patient will be concluded in a single session. Treatment for group 2 (PDT + placebo cream) will also be completed in a single session. All possible adverse effects will be noted and qualified during the treatment protocol and maintenance period (3/3 months) using the questionnaire developed for this protocol.
| Study group | Role | What they receive |
|---|---|---|
| Control (placebo) | Placebo comparator | The patients will receive an agent with the same vehicle as methylene blue to mimic irrigation with the photosensitizer and the laser will be switched off at the time of application. The placebo PDT procedures will be performed on the lesion: Application of methylene blue placebo with a carpule syringe and needle (with stop and without bevel) inside the lesions; 1 minute of pre-irradiation will be expected. The irradiations will be performed with the same device positioned in the same way and at the same time of application, however, the laser will be turned off. The beep sound will be recorded and turned on during application to blind treatment to the patient. The patient will receive a catheter with acyclovir cream and will be advised to spread on the lesions four times a day for 7 days, which will be their return for reevaluation. It will be washed in abundance with saline (saline solution) until the total removal of the placebo from the photosensitizer. Receives: Device: photodynamic therapy herpes labialis |
| experimental group | Experimental | Patients will be treated with photodynamic therapy and will receive a placebo ointment simulating acyclovir cream. If the lesions are in the vesicle phase, they will be ruptured with a sterile needle. The methylene blue solution at 0.005% concentration will be gently placed on the lesions. Application of methylene blue on the lesions.1 minute of pre-irradiation will be expected. The irradiations will be performed with the Laser Duo® with a wavelength of 660 nm, with a power of 100 mW(milliwatts), the energy density of 300 J / cm², with the energy of 3 J (joules) in the center of the lesion for 30 seconds. The laser will be positioned in direct contact with the lesion, perpendicular, applied centrally to each lesion with energy per point of 3J. Wash in abundance with saline solution until the removal of the photosensitizer is complete. Patients will receive a tube with a placebo cream simulating aciclovir and the same will be advised to spread the cream 4 times per day for 7 days. Receives: Device: photodynamic therapy herpes labialis |
What is being measured
The primary outcome is the main question the study is designed to answer.
Evaluation of the resolution time of the lesions
Evaluation of the resolution time of the lesions in days (primary objective of the study). For this, a 15-day follow-up will be performed for this variable.The complete resolution will be accompanied by photos and telephone contact and noted in a specific clinical file. For this, a 1-year follow-up will be performed for this variable. The location of the lesions through sextants on the lips (sextants 1, 2 and 3 to upper left to right and sextants 4,5 and 6 from right to left, with sextant 2 in the labial filter region and sextant 5 is its lower lip antagonist.
Measured: through study completion on average of one year
Secondary outcomes (6)
Evaluate if the amount of HSV-1 decreases after treatment with PDT
by qPCR (polymerase reaction ) at the baseline (T0), 3 (T1) and 7 (T2).HSV lesion secretion samples will be collected at 1 single site in the central portion of the lesion with sterile swab after treatment of all HSV lesions. They will be stored in 500 μl of Tris-EDTA (ethylenediamine tetraacetic acid) in tubes of 1 , 5ml for microcentrifuge (Eppendorff®). During the collection period (in the clinic) the samples will be stored on ice inside a styrofoam. These samples will be properly identified and stored at -80ºC (centigrades) (freezer from the UNINOVE University nove de Julho Biophotonics Laboratory) until further analysis.
Measured: through study completion on average of three years
evaluation of saliva cytokines IL-6, IL-1β, IL-8, TNF-α (tumor necrosis factor) and IL-10 (interleukine)
by ELISA method in non-stimulated saliva in the baseline (T0), 3 (T1) and 7 T2) and 30 days after treatment (T3).Samples of unstimulated saliva (2 ml) will be collected in 50 ml tubes (Falcon tube). In the laboratory 500 μl of pure saliva will be added to 500 μl TE (tris-EDTA), and stored at -80 ° C (freezer from the UNINOVE Biophotonics laboratory).
Measured: through study completion on average of three years
presence of pain: visual analog scale
verify the pain by visual analog scale at baseline (T0), 3 (T1) and 7 (T2) and 30 days after treatment (T3).Will be assessed by applying the visual analogue scale (EVA) with a line of 100 mm, with both ends closed. One end has the indication "0" and the other "10" which means respectively no pain and unbearable pain. Instructions for marking will always be given to the patient by the same operator. Each patient will be instructed to mark with a vertical trace the point that best corresponds to the intensity of pain at the time of evaluation
Measured: through study completion on average of three years
Oral health impact profile (Ohip-14)
This questionnaire is a simplified form of the original OHIP-49 questionnaire, the Ohip-14, and will be used to assess the impact of oral health on the quality of life of the research participants. The Ohip-14 is used to measure perceived needs. It measures the impact of oral changes on oral health related quality of life. The patient responds to 14 questions by assigning to his answers the values 0 (never), 1 (almost never), 2 (sometimes), 3 (most of the time) and 4 (always)
Measured: through study completion on average of three years
Temperature
The temperature will be measured at the site of the lesion (at its central point) and at its side (healthy skin 2 cm from the edge of the lesion). The local measurement will be measured using the Safety 1st® digital thermometer (Safety 1st®, "No Touch Forehead", Columbus, USA
Measured: through study completion on average of three years
evaluation of HSL lesions cytokines IL-6, IL-1β, IL-8, TNF-α (tumor necrosis factor) and IL-10 (interleukine)
by ELISA method in HSL lesions in the baseline (T0), 3 (T1) and 7 T2) and 30 days after treatment (T3).Samples of unstimulated saliva (2 ml) will be collected in 50 ml tubes (Falcon tube). In the laboratory 500 μl of pure saliva will be added to 500 μl TE (tris-EDTA), and stored at -80 ° C (freezer from the UNINOVE Biophotonics laboratory).
Measured: through study completion on average of three years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Jul 2019
- Study start1 Jan 2020
- Primary completion30 Oct 2022
- Study completion15 Oct 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for Photodynamic TherapyStudies of the same condition, open and under way.
- 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- 24 individuals will be randomly divided into 2 groups: G1 (control group) - conventional treatment with acyclovir and simulation of treatment with photodynamic therapy; G2 (experimental group) - photodynamic therapy placebo ointment simulating acyclovir cream.
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 24 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Nove de Julho
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Anna Carolina Ratto Tempestini Horliana, University of Nove de Julho
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04037475
- Sponsor's protocol ID
- Herpes
- Acronym
- Herpes
- Status last verified
- Nov 2023
- First submitted
- 24 Jul 2019
- Last updated
- 21 Nov 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Ramalho KM, Rocha RG, Correa-Aranha AC, Cunha SR, Simoes A, Campos L, Eduardo Cde P. Treatment of herpes simplex labialis in macule and vesicle phases with photodynamic therapy. Report of two cases. Photodiagnosis Photodyn Ther. 2015 Jun;12(2):321-3. doi: 10.1016/j.pdpdt.2015.02.005. Epub 2015 Mar 10. No abstract available.
PubMed 25770054Marotti J, Aranha AC, Eduardo Cde P, Ribeiro MS. Photodynamic therapy can be effective as a treatment for herpes simplex labialis. Photomed Laser Surg. 2009 Apr;27(2):357-63. doi: 10.1089/pho.2008.2268.
PubMed 19382840Palmieri M, Ornaghi M, Martins VAO, Correa L, Brandao TB, Ribeiro ACDP, Sumita LM, Tozetto-Mendoza TR, Pannuti CS, Braz-Silva PH. Oral shedding of human herpesviruses in patients undergoing radiotherapy/chemotherapy for head and neck squamous cell carcinoma is not affected by xerostomia. J Oral Microbiol. 2018 May 28;10(1):1476643. doi: 10.1080/20002297.2018.1476643. eCollection 2018.
PubMed 29868164La Selva A, Bezerra DT, Zerbinati RM, Goncalves MLL, Navarro RS, Bello-Silva MS, Ando-Suguimoto ES, Aranha ACC, Braz-Silva PH, Ramalho KM, Motta LJ, Fernandes KPS, Bussadori SK, Mesquita-Ferrari RA, Frochot C, Horliana ACRT. Herpes Simplex Treated With Antimicrobial Photodynamic Therapy: Randomized Controlled Trial. J Oral Pathol Med. 2025 Aug;54(7):547-555. doi: 10.1111/jop.13647. Epub 2025 Jun 8.
PubMed 40485092La Selva A, Negreiros RM, Bezerra DT, Rosa EP, Pavesi VCS, Navarro RS, Bello-Silva MS, Ramalho KM, Aranha ACC, Braz-Silva PH, Fernandes KPS, Bussadori SK, Horliana ACRT. Treatment of herpes labialis by photodynamic therapy: Study protocol clinical trial (SPIRIT compliant). Medicine (Baltimore). 2020 Mar;99(12):e19500. doi: 10.1097/MD.0000000000019500.
PubMed 32195950
Study at a glance
From the registry record, last updated by the sponsor on 21 Nov 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Treatment of Herpes Labialis by Photodynamic Therapy: Controlled, Prospective, Randomized, Double-blind Protocol Study
- ClinicalTrials.gov ID
- NCT04037475
- Acronym / sponsor ID
- Herpes / Herpes
- Conditions
- Photodynamic Therapy, Herpes Simplex, Labial
- Keywords
- photodynamic therapy, herpes labialis, herpes simplex, laser
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 24 participants (actual)
- Lead sponsor
- University of Nove de JulhoUniversity, hospital or other
- Study start
- 1 Jan 2020 (actual)
- Primary completion
- 30 Oct 2022 (actual)
- Study completion
- 15 Oct 2023 (actual)
- First posted
- 30 Jul 2019 (actual)
- 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.
Lesions of herpes labialis are caused by the herpes simplex virus type 1 (HSV-1) and cause pain and aesthetic compromise. It is characterized by the formation of small vesicles that coalesce and rupture forming extremely painful ulcers, that evolve to crusts, dry desquamations until their complete remission. Currently, the treatment of these lesions is done with acyclovir. Although it diminishes the symptomatology, it causes viral resistance and does not prevent the recurrence of the lesions. It is known that photodynamic therapy (PDT) has numerous advantages, among them: the reduction of the time of remission, and does not cause resistance.
A total of 30 patients with herpes labialis in the prodromal stage of vesicles, ulcers, and crusts will be selected to participate in the study and randomized into two groups: G1 control and G2 experimental. After signing informed consent, patients in group G1 will undergo the standard gold treatment for cold sores with acyclovir and simulated PDT treatment. Patients in the experimental G2 group will be treated simulating the gold standard treatment of herpes labialis (placebo) and PDT.
Detailed description
Lesions of herpes labialis are caused by the herpes simplex virus type 1 (HSV-1) and cause pain and aesthetic compromise. It is characterized by the formation of small vesicles that coalesce and rupture forming extremely painful ulcers, that evolve to crusts, dry desquamations until their complete remission. Currently, the treatment of these lesions is done with acyclovir. Although it diminishes the symptomatology, it causes viral resistance and does not prevent the recurrence of the lesions. It is known that photodynamic therapy (PDT) has numerous advantages, among them: the reduction of the time of remission, and does not cause resistance.
Materials and methods: A total of 30 patients with herpes labialis in the prodromal stage of vesicles, ulcers, and crusts will be selected to participate in the study and randomized into two groups: G1 control and G2 experimental. After signing TCLE and TA, patients in group G1 will undergo the standard gold treatment for cold sores with acyclovir and simulated PDT treatment. Patients in the experimental G2 group will be treated simulating the gold standard treatment of herpes labialis (placebo) and PDT. In all patients will be collected saliva samples for analysis of cytokines, and will be performed exfoliative cytology in the lesions. The pain will be assessed through a pain scale and a questionnaire of quality of life-related to oral health (Ohip- 14) will be given to them. Patients will continue to be followed up after 7 days, 1 month, 3 months, 6 months and 1 year and, if there is a recurrence of the lesion, they will contact the researchers.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
- Model description
- 24 individuals will be randomly divided into 2 groups: G1 (control group) - conventional treatment with acyclovir and simulation of treatment with photodynamic therapy; G2 (experimental group) - photodynamic therapy placebo ointment simulating acyclovir cream.
| Arm | Type | Receives |
|---|---|---|
| Control (placebo) | Placebo comparator | Device: photodynamic therapy herpes labialisThe patients will receive an agent with the same vehicle as methylene blue to mimic irrigation with the photosensitizer and the laser will be switched off at the time of application. The placebo PDT procedures will be performed on the lesion: Application of methylene blue placebo with a carpule syringe and needle (with stop and without bevel) inside the lesions; 1 minute of pre-irradiation will be expected. The irradiations will be performed with the same device positioned in the same way and at the same time of application, however, the laser will be turned off. The beep sound will be recorded and turned on during application to blind treatment to the patient. The patient will receive a catheter with acyclovir cream and will be advised to spread on the lesions four times a day for 7 days, which will be their return for reevaluation. It will be washed in abundance with saline (saline solution) until the total removal of the placebo from the photosensitizer. |
| experimental group | Experimental | Device: photodynamic therapy herpes labialisPatients will be treated with photodynamic therapy and will receive a placebo ointment simulating acyclovir cream. If the lesions are in the vesicle phase, they will be ruptured with a sterile needle. The methylene blue solution at 0.005% concentration will be gently placed on the lesions. Application of methylene blue on the lesions.1 minute of pre-irradiation will be expected. The irradiations will be performed with the Laser Duo® with a wavelength of 660 nm, with a power of 100 mW(milliwatts), the energy density of 300 J / cm², with the energy of 3 J (joules) in the center of the lesion for 30 seconds. The laser will be positioned in direct contact with the lesion, perpendicular, applied centrally to each lesion with energy per point of 3J. Wash in abundance with saline solution until the removal of the photosensitizer is complete. Patients will receive a tube with a placebo cream simulating aciclovir and the same will be advised to spread the cream 4 times per day for 7 days. |
Who may qualify
- Ages
- 12 to 60 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Key inclusion criteria (3 listed)
- Patients of both sex,
- with no predilection for race or socioeconomic status,
- negative medical history
Key exclusion criteria (7 listed)
- Patients with a herpes infection in the dry desquamation stage will be excluded.
- Participants in continuous use of non-steroidal anti-inflammatory drugs and continued corticosteroid therapy for less than 1 week.
- Diabetic participants, smokers
- who need immunosuppressants,
- pregnant women and/or nursing mothers.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| photodynamic therapy herpes labialisPatients will receive Photodynamic Therapy (PDT), irradiations will be performed with the Laser Duo® red laser diode (MMOptics, São Carlos, SP, Brazil) with a wavelength of 660 nm, with a power of 100 mW, the energy density of 300 J / cm², with energy of 3 J in the center of the lesion for 30 seconds. The laser will be positioned in direct contact with the lesion, perpendicular, applied centrally to each isolated lesion that presents with fixed energy per point of 3J. Wash in abundance with saline solution until the removal of the photosensitizer is complete. All treatment proposed in group 1 (simulation of PDT + delivery of aciclovir cream) in each patient will be concluded in a single session. Treatment for group 2 (PDT + placebo cream) will also be completed in a single session. All possible adverse effects will be noted and qualified during the treatment protocol and maintenance period (3/3 months) using the questionnaire developed for this protocol. | Device | Control (placebo), experimental group |
Primary outcome
Evaluation of the resolution time of the lesions
Time frame: through study completion on average of one year
Evaluation of the resolution time of the lesions in days (primary objective of the study). For this, a 15-day follow-up will be performed for this variable.The complete resolution will be accompanied by photos and telephone contact and noted in a specific clinical file. For this, a 1-year follow-up will be performed for this variable. The location of the lesions through sextants on the lips (sextants 1, 2 and 3 to upper left to right and sextants 4,5 and 6 from right to left, with sextant 2 in the labial filter region and sextant 5 is its lower lip antagonist.
6 secondary outcomes
Evaluate if the amount of HSV-1 decreases after treatment with PDT
Time frame: through study completion on average of three years
evaluation of saliva cytokines IL-6, IL-1β, IL-8, TNF-α (tumor necrosis factor) and IL-10 (interleukine)
Time frame: through study completion on average of three years
presence of pain: visual analog scale
Time frame: through study completion on average of three years
Oral health impact profile (Ohip-14)
Time frame: through study completion on average of three years
Temperature
Time frame: through study completion on average of three years
evaluation of HSL lesions cytokines IL-6, IL-1β, IL-8, TNF-α (tumor necrosis factor) and IL-10 (interleukine)
Time frame: through study completion on average of three years
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 21 Nov 2023.
- Results publication: PubMed 25770054Ramalho KM, Rocha RG, Correa-Aranha AC, Cunha SR, Simoes A, Campos L, Eduardo Cde P. Treatment of herpes simplex labialis in macule and vesicle phases with photodynamic therapy. Report of two cases. Photodiagnosis Photodyn Ther. 2015 Jun;12(2):321-3. doi: 10.1016/j.pdpdt.2015.02.005. Epub 2015 Mar 10. No abstract available.
- Results publication: PubMed 19382840Marotti J, Aranha AC, Eduardo Cde P, Ribeiro MS. Photodynamic therapy can be effective as a treatment for herpes simplex labialis. Photomed Laser Surg. 2009 Apr;27(2):357-63. doi: 10.1089/pho.2008.2268.
- Results publication: PubMed 29868164Palmieri M, Ornaghi M, Martins VAO, Correa L, Brandao TB, Ribeiro ACDP, Sumita LM, Tozetto-Mendoza TR, Pannuti CS, Braz-Silva PH. Oral shedding of human herpesviruses in patients undergoing radiotherapy/chemotherapy for head and neck squamous cell carcinoma is not affected by xerostomia. J Oral Microbiol. 2018 May 28;10(1):1476643. doi: 10.1080/20002297.2018.1476643. eCollection 2018.
- Derived from this study: PubMed 40485092La Selva A, Bezerra DT, Zerbinati RM, Goncalves MLL, Navarro RS, Bello-Silva MS, Ando-Suguimoto ES, Aranha ACC, Braz-Silva PH, Ramalho KM, Motta LJ, Fernandes KPS, Bussadori SK, Mesquita-Ferrari RA, Frochot C, Horliana ACRT. Herpes Simplex Treated With Antimicrobial Photodynamic Therapy: Randomized Controlled Trial. J Oral Pathol Med. 2025 Aug;54(7):547-555. doi: 10.1111/jop.13647. Epub 2025 Jun 8.
- Derived from this study: PubMed 32195950La Selva A, Negreiros RM, Bezerra DT, Rosa EP, Pavesi VCS, Navarro RS, Bello-Silva MS, Ramalho KM, Aranha ACC, Braz-Silva PH, Fernandes KPS, Bussadori SK, Horliana ACRT. Treatment of herpes labialis by photodynamic therapy: Study protocol clinical trial (SPIRIT compliant). Medicine (Baltimore). 2020 Mar;99(12):e19500. doi: 10.1097/MD.0000000000019500.
- Individual participant dataSharing planned: No
Related trials for Photodynamic Therapy
Not yet recruitingPhase 2
Efficacy of Methylene Blue Photodynamic Therapy for Treatment of Deep Tissue Abscesses
Abscess
Recruiting
Effects of Different Activation Techniques on Antimicrobial Photodynamic Therapy in Apical Periodontitis
Apical Periodontitis, Endodontic Retreatment
RecruitingPhase 1/2
Interstitial Photodynamic Therapy Following Palliative Radiotherapy in Treating Patients With Inoperable Malignant Central Airway Obstruction
Malignant Solid Neoplasm
RecruitingPhase 3
Study of Reformulated Levulan Kerastick Plus PDT for Actinic Keratosis on Upper Extremities
Actinic Keratosis
RecruitingPhase 3
Study of Reformulated Levulan Kerastick Plus PDT for Actinic Keratosis on Face and Scalp
Actinic Keratosis
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.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing photodynamic therapy herpes labialis in people with Photodynamic Therapy and Herpes Simplex, Labial, run by University of Nove de Julho 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 7 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 21 Nov 2023. 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. Some participants in this study may receive a placebo. 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?
Evaluation of the resolution time of the lesions (time frame: through study completion on average of one year). 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 NCT04037475, which also lists 5 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 21 Nov 2023.