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Vitamin D Supplementation as a Neoadjuvant for Photodynamic Therapy of Actinic Keratoses

Vitamin D Supplementation as a Neoadjuvant for Photodynamic Therapy of Actinic Keratoses

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04140292
Enrollment
75
Registered
2019-10-25
Start date
2020-01-13
Completion date
2021-05-27
Last updated
2022-06-24

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

Conditions

Actinic Keratosis

Brief summary

This study is open to individuals with Actinic Keratoses (skin lesions that have the potential to turn into skin cancer), who are receiving photodynamic therapy (PDT) as part of their clinical care. The purpose of this study is to test and demonstrate that vitamin D pre-treatment can enhance PDT efficacy in the treatment of Actinic Keratoses. Participants will be asked to take vitamin D supplements prior to their standard of care PDT treatment. Participation in the research will last about 3-4 months.

Detailed description

The primary objective of this study is to determine whether acute supplementation (neoadjuvant Vitamin D3), adjusted according to baseline Vitamin D status, can improve the clinical PDT response relative to participants receiving PDT alone The secondary objective of this study is to determine whether gene polymorphisms in VDR and CYP27B1 are predictive for the degree of responsiveness to Vitamin D as a neoadjuvant for PDT. This study is a non-randomized interventional trial, in which the study group will be compared to a baseline cohort of patients from a previous study who received the same regimen of PDT, but without any Vit D. It is anticipated that 30 participants will be involved in this study.

Interventions

PDT is a technique that combines a photosensitizing drug and an intense light source to kill tumor cells Noninvasive fluorescence dosimetry may be performed on up to 6 lesions. Levulan Kerastick will be applied to each lesion and left to incubate for 30 minutes. Blue light (Blu-U device, 20 J/cm2, 33 minutes) will be administered.

DRUGVitamin D3

D3 pills (10,000 IU each) to be taken daily at home, beginning at either day -5 or day -14, as per their assignment Participants will receive a 5-day or 14-day supplementation of Vitamin D10,000 IU depending on their baseline Vitamin D 25 Hydroxy result

Sponsors

Case Comprehensive Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Study group will be compared to a baseline cohort of patients from a previous study (IRB 16-1615) who received the same regimen of PDT, but without any Vit D

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Actinic keratoses in sufficient numbers (\>10) to warrant PDT therapy in the clinic * Able to understand and willing to sign a written informed consent document * Female subjects must not become pregnant during the study: * The effects of 5-aminolevulinic acid (LevulanTM) on the human fetus are unknown. For this reason, women of child-bearing potential must agree to use contraception (double barrier method of birth control or abstinence) prior to study entry, and throughout study participation. Should a woman become pregnant or suspect that she is pregnant while she is participating in this study, she should inform the treating physician immediately.

Exclusion criteria

* Pregnant or nursing. * At risk for hypercalcemia (renal disease, sarcoidosis, etc.) * Using topical retinoids, since these can exacerbate the post-PDT erythema reaction. * Using any topical treatment on their AKs; must stop at least one month prior. * Currently undergoing treatment for other cancers with medical or radiation therapy. * Patients with a known hypersensitivity to 5-aminolevulinic acid or any component of the study material. * Patients with history of a photosensitivity disease, such as porphyria cutanea tarda. * Currently participating in another clinical trial.

Design outcomes

Primary

MeasureTime frameDescription
Clinical PDT Response as Measured by Percent Change in AK Lesions From Baseline to 3 Months3 months after treatmentClinical PDT response as measured by the percent change of AK lesions 3 months after treatment Baseline vitamin D (calcidiol) level will be taken for each patient.

Secondary

MeasureTime frameDescription
Correlation Between Vitamin D Receptor (VDR) Polymorphisms and Percent Reduction in AK3 months after treatmentWhether gene polymorphisms in VDR and CYP27B1 are predictive for the degree of responsiveness (as measured by percent reduction in AK) to Vitamin D as a neoadjuvant for PDT.
Number of Participants Reporting 1 or Higher on the Pain ScaleDuring treatment (at the 5 min mark), and again immediately afterwards.Pain scale recorded on a 0-to-10 visual/analog scale, with higher scores mean more pain; 0 is no pain, 10 is the worst pain imaginable. Number of participants receiving treatment that reported a pain level greater than 1.
Tolerability as Measured by Participants' Symptom Score Sheets1 week after treatmentParticipants are asked to recall the symptoms they experienced during the week following PDT. The study physician asks them whether they had experienced each of the following 13 symptoms (YES/NO), and positive (YES) answers were summed to create a Side Effects Score (SES). The maximum and minimum possible values are 13 and 0 respectively, with a higher score correlating to poorer participant outcomes. The 13 possible side effects were: pain, erythema, scabbing, blistering, erosions, edema, warmth, exfoliation, discharge, hemorrhage, tightness, hyperpigmentation, hypopigmentation.
Accumulation of Protoporphyrin IX (PpIX) Within AK3 months after treatmentAccumulation of protoporphyrin IX (PpIX) within AK PpIX accumulation in areas of both actinic damage and normal skin will be measured with a fluorescence dosimeter. The level of calcidiol, a clinically accepted marker of vitamin D status, will be measured in each patient to see if supplementation with 10,000 IU of Vitamin D increase the accumulation

Countries

United States

Participant flow

Participants by arm

ArmCount
Vitamin D3 + Photodynamic Therapy (PDT)
Patients receive Vitamin D3 10,000 IU daily for 5 or 14 days depending on VitD baseline level. They then undergo Photodynamic therapy (PDT) for treatment of actinic keratosis. Photodynamic therapy (PDT): PDT is a technique that combines a photosensitizing drug and an intense light source to kill tumor cells Noninvasive fluorescence dosimetry may be performed on up to 6 lesions. Levulan Kerastick will be applied to each lesion and left to incubate for 30 minutes. Blue light (Blu-U device, 20 J/cm2, 33 minutes) will be administered. Vitamin D3: D3 pills (10,000 IU each) to be taken daily at home, beginning at either day -5 or day -14, as per their assignment Participants will receive a 5-day or 14-day supplementation of Vitamin D10,000 IU depending on their baseline Vitamin D 25 Hydroxy result
29
Photodynamic Therapy (PDT)
Data for the participants in this arm are from a previous basic science study that looked at Vit D level that got standard of care PDT. These participants were used as a control group.
26
Total55

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyRestriction on outpatient visits due to COVID-19.416

Baseline characteristics

CharacteristicVitamin D3 + Photodynamic Therapy (PDT)Photodynamic Therapy (PDT)Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
17 Participants13 Participants30 Participants
Age, Categorical
Between 18 and 65 years
12 Participants13 Participants25 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
29 Participants26 Participants55 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
29 Participants26 Participants55 Participants
Sex: Female, Male
Female
2 Participants3 Participants5 Participants
Sex: Female, Male
Male
27 Participants23 Participants50 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 0
other
Total, other adverse events
0 / 00 / 0
serious
Total, serious adverse events
0 / 00 / 0

Outcome results

Primary

Clinical PDT Response as Measured by Percent Change in AK Lesions From Baseline to 3 Months

Clinical PDT response as measured by the percent change of AK lesions 3 months after treatment Baseline vitamin D (calcidiol) level will be taken for each patient.

Time frame: 3 months after treatment

Population: Participants who received treatment.

ArmMeasureValue (MEAN)Dispersion
Vitamin D3 + Photodynamic Therapy (PDT)Clinical PDT Response as Measured by Percent Change in AK Lesions From Baseline to 3 Months59.1 Percent change of AK lesionsStandard Deviation 15.9
Photodynamic Therapy (PDT)Clinical PDT Response as Measured by Percent Change in AK Lesions From Baseline to 3 Months72.5 Percent change of AK lesionsStandard Deviation 13.6
Secondary

Accumulation of Protoporphyrin IX (PpIX) Within AK

Accumulation of protoporphyrin IX (PpIX) within AK PpIX accumulation in areas of both actinic damage and normal skin will be measured with a fluorescence dosimeter. The level of calcidiol, a clinically accepted marker of vitamin D status, will be measured in each patient to see if supplementation with 10,000 IU of Vitamin D increase the accumulation

Time frame: 3 months after treatment

Population: Unable to obtain any information about the PpIX accumulation levels because fluorescence imaging dosimeter broke down and it was unable to be replaced.

Secondary

Correlation Between Vitamin D Receptor (VDR) Polymorphisms and Percent Reduction in AK

Whether gene polymorphisms in VDR and CYP27B1 are predictive for the degree of responsiveness (as measured by percent reduction in AK) to Vitamin D as a neoadjuvant for PDT.

Time frame: 3 months after treatment

Population: Unable to obtain any information about the PpIX accumulation levels because fluorescence imaging dosimeter broke down and it was unable to be replaced.

Secondary

Number of Participants Reporting 1 or Higher on the Pain Scale

Pain scale recorded on a 0-to-10 visual/analog scale, with higher scores mean more pain; 0 is no pain, 10 is the worst pain imaginable. Number of participants receiving treatment that reported a pain level greater than 1.

Time frame: During treatment (at the 5 min mark), and again immediately afterwards.

Population: Participants that received treatment.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Vitamin D3 + Photodynamic Therapy (PDT)Number of Participants Reporting 1 or Higher on the Pain Scale0 Participants
Photodynamic Therapy (PDT)Number of Participants Reporting 1 or Higher on the Pain Scale0 Participants
Secondary

Tolerability as Measured by Participants' Symptom Score Sheets

Participants are asked to recall the symptoms they experienced during the week following PDT. The study physician asks them whether they had experienced each of the following 13 symptoms (YES/NO), and positive (YES) answers were summed to create a Side Effects Score (SES). The maximum and minimum possible values are 13 and 0 respectively, with a higher score correlating to poorer participant outcomes. The 13 possible side effects were: pain, erythema, scabbing, blistering, erosions, edema, warmth, exfoliation, discharge, hemorrhage, tightness, hyperpigmentation, hypopigmentation.

Time frame: 1 week after treatment

Population: Participants who received treatment.

ArmMeasureValue (MEAN)Dispersion
Vitamin D3 + Photodynamic Therapy (PDT)Tolerability as Measured by Participants' Symptom Score Sheets3.7 score on a scaleStandard Deviation 2.2
Photodynamic Therapy (PDT)Tolerability as Measured by Participants' Symptom Score Sheets3.7 score on a scaleStandard Deviation 1.9

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026