CClinicalTrials.gg
CompletedNCT03899064Updated Mar 11, 2020Results posted

Evaluation of Potential Development of Photoallergic Skin Reaction After Use of MC2-01 Cream

A Phase 1 interventional study of Induction: Application of MC2-01 Cream, irradiation and Induction: Application of MC2-01 Cream, no irradiation in Photoallergy, sponsored by MC2 Therapeutics. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-03-11.

Sponsored by MC2 Therapeutics · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
58
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This trial is a 6-week, Randomized study evaluating the potential of MC2-01 Cream to induce a photoallergic skin reaction in Healthy subjects, using a controlled photopatch test design.

Read the detailed description

The study evaluates the potential of MC2-01(CAL/BDP 0.005/0.064 w/w%) Cream to induce a photoallergic skin reaction. Because MC2-01 Cream is formulated for topical use and has shown to absorb light within the range of natural sunlight, it is necessary to determine the potential of this product to cause a photoallergic reaction after application to the skin.

02

Conditions studied

  • Photoallergy
03

In context

Lead sponsor

MC2 Therapeutics is the lead sponsor of 9 studies on the registry; none are open to participants now.

Of its 7 completed or terminated interventional studies of FDA-regulated products, 7 (100%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Is a healthy male or female
  • Is 18 years of age or older
  • Agree not to participate in any clinical or patch test studies at Day 1 through study completion
  • Females or childbearing potential must use a highly effective method of contraception for one month prior to Screening and until the end of study visit has been performed
  • In the case of a female of childbearing potential, has a negative urine pregnancy test on Day 1 prior to randomization and are willing to submit to a urine pregnancy test at the end of study
  • In the case of a female of childbearing potential, has had a hysterectomy or is postmenopausal
  • Is free of any systemic or dermatological disorder, which, in the opinion of the Investigator, will interfere with the study results or increase the risk of AEs.
  • Has uniformly-colored skin on the intrascapular region of the back which will allow discernment of erythema, and has Fitzpatrick skin types I, II or III
  • Complete a medical screening procedure
  • Read, understand and sign an informed consent

Exclusion criteria

Exclusion Criteria:

  • Has a history of photosensitivity or photoallergy
  • Has any visible skin disease at the application site which, in the opinion of the Investigator, will interfere with the evaluation of the test site reaction
  • Current or past history of hypercalcemia, vitamin D toxicity, severe renal insufficiency or severe hepatic disorders
  • Is using systemic/topical corticosteroids within 3 weeks prior to and/or during the study or systemic/topical antihistamines 72 hours prior to and during the study
  • Is not willing to refrain from using systemic/topical anti-inflammatory analgesics (81 mg aspirin and occasional use of acetaminophen will be permitted)
  • Are taking medication known to cause phototoxic reaction
  • Is using medication which, in the opinion of the Investigator, will interfere with the study results
  • Is unwilling or unable to refrain from the use of sunscreens, cosmetics, creams, ointments, lotions or similar products on the back during the study
  • Has psoriasis and/or atopic dermatitis/eczema
  • Has a known sensitivity or allergy to constituents of the materials being evaluated
  • Is a female who is pregnant, plans to become pregnant during the study, or is breast feeding a child
  • Has damaged skin in or around the test sites, including sunburn, excessively deep tans, uneven skin tones, tattoos, scars excessive hair, numerous freckles or other disfigurations of the test site
  • Has received treatment for any type of internal cancer within 5 years prior to study entry
  • Has a history of, or are currently being treated for skin cancer and/or hepatitis
  • Has a history or, or is currently being treated for diabetes
  • Has any condition that might compromise study results
  • Is expected to sunbathe or use tanning salons during the study
  • Has a history of adverse response to UV-sun lamps/sunlight exposure
  • Is currently participating in any clinical testing
  • Has any known sensitivity to adhesives
  • Has received any investigational drug(s) within 28 days from Day 1
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
58 participants (actual)

Study arms

  • Experimental
    Induction:MC2-01 Cream, irradiation

    Applications with MC2-01 Cream (calcipotriene/betamethasone dipropionate, w/w 0.005%/0.064%), followed by irradiation

    Drug: Induction: Application of MC2-01 Cream, irradiation

  • Experimental
    Induction: MC2-01 Cream, no irradiation

    Applications with MC2-01 Cream (calcipotriene/betamethasone dipropionate, w/w 0.005%/0.064%), no irradiation

    Drug: Induction: Application of MC2-01 Cream, no irradiation

  • Experimental
    Induction: MC2-01 vehicle, irradiation

    Applications with MC2-01 vehicle, followed by irradiation

    Drug: Induction: Applications of MC2-01 vehicle, irradiation

  • Experimental
    Induction: MC2-01 vehicle, no irradiation

    Applications with MC2-01 vehicle, no irradiation

    Drug: Induction: Applications of MC2-01 vehicle, no irradiation

  • Experimental
    Challenge: MC2-01 Cream, irradiation

    Application with MC2-01 Cream (calcipotriene/betamethasone dipropionate, w/w 0.005%/0.064%), followed by irradiation

    Drug: Challenge: Application of MC2-01 Cream, irradiation

  • Experimental
    Challenge: MC2-01 Cream, No irradiation

    Application with MC2-01 Cream (calcipotriene/betamethasone dipropionate, w/w 0.005%/0.064%), no irradiation

    Drug: Challenge: Application of MC2-01 Cream, no irradiation

  • Experimental
    Challenge: MC2-01 vehicle, irradiation

    Application with MC2-01 vehicle, followed by irradiation

    Drug: Challenge: Applications of MC2-01 vehicle, irradiation

  • Experimental
    Challenge: MC2-01 vehicle, no irradiation

    Application with MC2-01 vehicle, no irradiation

    Drug: Challenge: Applications of MC2-01 vehicle, no irradiation

  • Experimental
    Challenge: Control, irradiation

    No application, but irradiation

    Drug: Challenge: Control, irradiation

Interventions

  • DrugInduction: Application of MC2-01 Cream, irradiation

    Repeated applications of MC2-01 Cream (CAL/BDP, 0.005%/0.064%), followed by irradiation. Visual evaluation of application site using a visual scale that rated the degree of erythema, edema and other signs of cutaneous irritation

  • DrugInduction: Application of MC2-01 Cream, no irradiation

    Repeated applications of MC2-01 Cream, CAL/BDP, 0.005%/0.064%, no irradiation. Visual evaluation of application site using a visual scale that rated the degree of erythema, edema and other signs of cutaneous irritation

  • DrugInduction: Applications of MC2-01 vehicle, irradiation

    Repeated applications of MC2-01 cream, followed by irradiation. Visual evaluation of application site using a visual scale that rated the degree of erythema, edema and other signs of cutaneous irritation

  • DrugInduction: Applications of MC2-01 vehicle, no irradiation

    Repeated applications of MC2-01 vehicle, no irradiation. Visual evaluation of application site using a visual scale that rated the degree of erythema, edema and other signs of cutaneous irritation

  • DrugChallenge: Application of MC2-01 Cream, irradiation

    Single application of MC2-01 Cream (CAL/BDP, 0.005%/0.064%), followed by irradiation. Visual evaluation of application site using a visual scale that rated the degree of erythema and edema

  • DrugChallenge: Application of MC2-01 Cream, no irradiation

    Single application of MC2-01 Cream (CAL/BDP, 0.005%/0.064%), no irradiation. Visual evaluation of application site using a visual scale that rated the degree of erythema and edema

  • DrugChallenge: Applications of MC2-01 vehicle, irradiation

    Single application of MC2-01 vehicle, followed by irradiation. Visual evaluation of application site using a visual scale that rated the degree of erythema and edema

  • DrugChallenge: Applications of MC2-01 vehicle, no irradiation

    Single application of MC2-01 vehicle, no irradiation. Visual evaluation of application site using a visual scale that rated the degree of erythema and edema

  • DrugChallenge: Control, irradiation

    No application, but irradiation. Visual evaluation of application site using a visual scale that rated the degree of erythema and edema

06

What researchers measure

Primary outcomes

  1. Within-subject Comparison of Dermal Reaction by the Overall Numeric Rating of Erythema and Edema at 5 Defined Test Sites, After Application of MC2-01 Cream, MC2-01 Vehicle or Untreated at Defined Test Sites, Followed by Irradiation.

    After an induction phase, where subjects were treated with MC2-01 Cream, MC2-01 vehicle and irradiation, the challenge phase was initiated. MC2-01 Cream and MC2-01 vehicle was applied to each two naive test sites. Another naive test site was untreated. 24 hours after product application, one of each test site (MC2-01 Cream, MC2-01 vehicle) + the untreated site were irradiated. Possible changes in dermal reaction (erythema and edema) was evaluated at all 5 test sites 24, 48 and 72 hours post-irradiation and these evaluations are the outcome measure of the study. The following visual scores was used to express the response observed at each timepoints: Erythema: 0-3 where 0 represents no reaction and 3 represents marked/severe erythema. Edema: 0-2 where 0 represents no reaction and 2 represents definite edema with erosion/vesiculation. The diagnosis of photosensitization response will be made by the investigator based on review of the scored skin responses of both erythema and edema.

    Time frame: 24 hours

  2. Within-subject Comparison of Dermal Reaction by the Overall Numeric Rating of Erythema and Edema at 5 Defined Test Sites, After Application of MC2-01 Cream, MC2-01 Vehicle or Untreated at Defined Test Sites, Followed by Irradiation.

    After an induction phase, where subjects were treated with MC2-01 Cream, MC2-01 vehicle and irradiation, the challenge phase was initiated. MC2-01 Cream and MC2-01 vehicle was applied to each two naive test sites. Another two naive test sites were untreated. 24 hours of product application, one of each test site (MC2-01 Cream, MC2-01 vehicle and untreated) were irradiated. Possible changes in dermal reaction (erythema and edema) was evaluated at all 6 test sites, 24, 48 and 72 hours post-irradiation and these evaluations are the outcome measure of the study. The following visual scores was used to express the response observed at each timepoints: Erythema: 0-3 where 0 represents no reaction and 3 represents marked/severe erythema. Edema: 0-2 where 0 represents no reaction and 2 represents definite edema with erosion/vesiculation. The diagnosis of photosensitization response will be made by the investigator based on review of the scored skin responses of both erythema and edema.

    Time frame: 48 hours

  3. Within-subject Comparison of Dermal Reaction by the Overall Numeric Rating of Erythema and Edema at 5 Defined Test Sites, After Application of MC2-01 Cream, MC2-01 Vehicle or Untreated at Defined Test Sites, Followed by Irradiation.

    After an induction phase, where subjects were treated with MC2-01 Cream, MC2-01 vehicle and irradiation, the challenge phase was initiated. MC2-01 Cream and MC2-01 vehicle was applied to each two naive test sites. Another two naive test sites were untreated. 24 hours of product application, one of each test site (MC2-01 Cream, MC2-01 vehicle and untreated) were irradiated. Possible changes in dermal reaction (erythema and edema) was evaluated at all 6 test sites, 24, 48 and 72 hours post-irradiation and these evaluations are the outcome measure of the study. The following visual scores was used to express the response observed at each timepoints: Erythema: 0-3 where 0 represents no reaction and 3 represents marked/severe erythema. Edema: 0-2 where 0 represents no reaction and 2 represents definite edema with erosion/vesiculation. The diagnosis of photosensitization response will be made by the investigator based on review of the scored skin responses of both erythema and edema.

    Time frame: 72 hours

07

Results

Posted Mar 11, 2020

Participant flow

First Subject First Visit: 18-Feb-2019; Last Subject Last Visit: 05-Apr-2019

Participant flow — Overall Study
MilestoneTest Sites
Started58
Mc2-01 cream, irradiation58
Mc2-01 cream, no irradiation58
Mc2-01 vehicle, irradiation58
Mc2-01 vehicle, no irradiation58
Control, irradiation58
Completed51
Not completed7
Withdrew: Lost to follow-up1
Withdrew: Protocol violation2
Withdrew: Withdrawal by subject2
Withdrew: Other2

Outcome measures

PrimaryWithin-subject Comparison of Dermal Reaction by the Overall Numeric Rating of Erythema and Edema at 5 Defined Test Sites, After Application of MC2-01 Cream, MC2-01 Vehicle or Untreated at Defined Test Sites, Followed by Irradiation.

After an induction phase, where subjects were treated with MC2-01 Cream, MC2-01 vehicle and irradiation, the challenge phase was initiated. MC2-01 Cream and MC2-01 vehicle was applied to each two naive test sites. Another naive test site was untreated. 24 hours after product application, one of each test site (MC2-01 Cream, MC2-01 vehicle) + the untreated site were irradiated. Possible changes in dermal reaction (erythema and edema) was evaluated at all 5 test sites 24, 48 and 72 hours post-irradiation and these evaluations are the outcome measure of the study. The following visual scores was used to express the response observed at each timepoints: Erythema: 0-3 where 0 represents no reaction and 3 represents marked/severe erythema. Edema: 0-2 where 0 represents no reaction and 2 represents definite edema with erosion/vesiculation. The diagnosis of photosensitization response will be made by the investigator based on review of the scored skin responses of both erythema and edema.

Time frame:
24 hours
Reported as:
Count of participants · Participants
Within-subject Comparison of Dermal Reaction by the Overall Numeric Rating of Erythema and Edema at 5 Defined Test Sites, After Application of MC2-01 Cream, MC2-01 Vehicle or Untreated at Defined Test Sites, Followed by Irradiation.
ParticipantsTest Sites
MC2-01 Cream, irradiation — No erythema/edema48
MC2-01 Cream, irradiation — Mild, definite erythema/edema3
MC2-01 Cream, irradiation — Moderate erythema/defined edema0
MC2-01 Cream, irradiation — Marked/severe erythema0
MC2-01 Cream, No irradiation — No erythema/edema49
MC2-01 Cream, No irradiation — Mild, definite erythema/edema2
MC2-01 Cream, No irradiation — Moderate erythema/defined edema0
MC2-01 Cream, No irradiation — Marked/severe erythema0
MC2-01 vehicle, irradiation — No erythema/edema49
MC2-01 vehicle, irradiation — Mild, definite erythema/edema2
MC2-01 vehicle, irradiation — Moderate erythema/defined edema0
MC2-01 vehicle, irradiation — Marked/severe erythema0
MC2-01 vehicle, no irradiation — No erythema/edema50
MC2-01 vehicle, no irradiation — Mild, definite erythema/edema1
MC2-01 vehicle, no irradiation — Moderate erythema/defined edema0
MC2-01 vehicle, no irradiation — Marked/severe erythema0
Control, Irradiation — No erythema/edema47
Control, Irradiation — Mild, definite erythema/edema4
Control, Irradiation — Moderate erythema/defined edema0
Control, Irradiation — Marked/severe erythema0
PrimaryWithin-subject Comparison of Dermal Reaction by the Overall Numeric Rating of Erythema and Edema at 5 Defined Test Sites, After Application of MC2-01 Cream, MC2-01 Vehicle or Untreated at Defined Test Sites, Followed by Irradiation.

After an induction phase, where subjects were treated with MC2-01 Cream, MC2-01 vehicle and irradiation, the challenge phase was initiated. MC2-01 Cream and MC2-01 vehicle was applied to each two naive test sites. Another two naive test sites were untreated. 24 hours of product application, one of each test site (MC2-01 Cream, MC2-01 vehicle and untreated) were irradiated. Possible changes in dermal reaction (erythema and edema) was evaluated at all 6 test sites, 24, 48 and 72 hours post-irradiation and these evaluations are the outcome measure of the study. The following visual scores was used to express the response observed at each timepoints: Erythema: 0-3 where 0 represents no reaction and 3 represents marked/severe erythema. Edema: 0-2 where 0 represents no reaction and 2 represents definite edema with erosion/vesiculation. The diagnosis of photosensitization response will be made by the investigator based on review of the scored skin responses of both erythema and edema.

Time frame:
48 hours
Reported as:
Count of participants · Participants
Within-subject Comparison of Dermal Reaction by the Overall Numeric Rating of Erythema and Edema at 5 Defined Test Sites, After Application of MC2-01 Cream, MC2-01 Vehicle or Untreated at Defined Test Sites, Followed by Irradiation.
ParticipantsTest Sites
MC2-01 Cream, irradiation — No erythema/edema48
MC2-01 Cream, irradiation — Mild, definite erythema/edema3
MC2-01 Cream, irradiation — Moderate erythema/defined edema0
MC2-01 Cream, irradiation — Marked/severe erythema0
MC2-01 Cream, No irradiation — No erythema/edema51
MC2-01 Cream, No irradiation — Mild, definite erythema/edema0
MC2-01 Cream, No irradiation — Moderate erythema/defined edema0
MC2-01 Cream, No irradiation — Marked/severe erythema0
MC2-01 vehicle, irradiation — No erythema/edema48
MC2-01 vehicle, irradiation — Mild, definite erythema/edema3
MC2-01 vehicle, irradiation — Moderate erythema/defined edema0
MC2-01 vehicle, irradiation — Marked/severe erythema0
MC2-01 vehicle, no irradiation — No erythema/edema50
MC2-01 vehicle, no irradiation — Mild, definite erythema/edema1
MC2-01 vehicle, no irradiation — Moderate erythema/defined edema0
MC2-01 vehicle, no irradiation — Marked/severe erythema0
Control, Irradiation — No erythema/edema48
Control, Irradiation — Mild, definite erythema/edema3
Control, Irradiation — Moderate erythema/defined edema0
Control, Irradiation — Marked/severe erythema0
PrimaryWithin-subject Comparison of Dermal Reaction by the Overall Numeric Rating of Erythema and Edema at 5 Defined Test Sites, After Application of MC2-01 Cream, MC2-01 Vehicle or Untreated at Defined Test Sites, Followed by Irradiation.

After an induction phase, where subjects were treated with MC2-01 Cream, MC2-01 vehicle and irradiation, the challenge phase was initiated. MC2-01 Cream and MC2-01 vehicle was applied to each two naive test sites. Another two naive test sites were untreated. 24 hours of product application, one of each test site (MC2-01 Cream, MC2-01 vehicle and untreated) were irradiated. Possible changes in dermal reaction (erythema and edema) was evaluated at all 6 test sites, 24, 48 and 72 hours post-irradiation and these evaluations are the outcome measure of the study. The following visual scores was used to express the response observed at each timepoints: Erythema: 0-3 where 0 represents no reaction and 3 represents marked/severe erythema. Edema: 0-2 where 0 represents no reaction and 2 represents definite edema with erosion/vesiculation. The diagnosis of photosensitization response will be made by the investigator based on review of the scored skin responses of both erythema and edema.

Time frame:
72 hours
Reported as:
Count of participants · Participants
Within-subject Comparison of Dermal Reaction by the Overall Numeric Rating of Erythema and Edema at 5 Defined Test Sites, After Application of MC2-01 Cream, MC2-01 Vehicle or Untreated at Defined Test Sites, Followed by Irradiation.
ParticipantsTest Sites
MC2-01 Cream, irradiation — No erythema/edema51
MC2-01 Cream, irradiation — Mild, definite erythema/edema0
MC2-01 Cream, irradiation — Moderate erythema/defined edema0
MC2-01 Cream, irradiation — Marked/severe erythema0
MC2-01 Cream, No irradiation — No erythema/edema51
MC2-01 Cream, No irradiation — Mild, definite erythema/edema0
MC2-01 Cream, No irradiation — Moderate erythema/defined edema0
MC2-01 Cream, No irradiation — Marked/severe erythema0
MC2-01 vehicle, irradiation — No erythema/edema50
MC2-01 vehicle, irradiation — Mild, definite erythema/edema1
MC2-01 vehicle, irradiation — Moderate erythema/defined edema0
MC2-01 vehicle, irradiation — Marked/severe erythema0
MC2-01 vehicle, no irradiation — No erythema/edema51
MC2-01 vehicle, no irradiation — Mild, definite erythema/edema0
MC2-01 vehicle, no irradiation — Moderate erythema/defined edema0
MC2-01 vehicle, no irradiation — Marked/severe erythema0
Control, Irradiation — No erythema/edema51
Control, Irradiation — Mild, definite erythema/edema0
Control, Irradiation — Moderate erythema/defined edema0
Control, Irradiation — Marked/severe erythema0

Adverse events

Collected over AEs were collected/assessed from the time of the informed consent was signed by the subject at the screening visit and during both the induction phase, which consisted of 3 weeks, and the challenge phase, which consisted of 4 days. The 4th day in the challenge phase was considered the last visit for the subjects. AEs assessed as reasonably possibly related to the treatment had to be followed until they were resolved or until the medical condition of the subject was stable.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Test Sites0/58 (0%)0/58 (0%)0/58 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)Test Sites
Mean57.8 ± 11.20
Sex: Female, Male
Sex: Female, Male(Participants)Test Sites
Female46
Male12
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Test Sites
Hispanic or Latino11
Not Hispanic or Latino47
Unknown or Not Reported0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Test Sites
American Indian or Alaska Native0
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American2
White56
More than one race0
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(participants)Test Sites
United States58
Fitzpatrick Skin Type
Fitzpatrick Skin Type(Participants)Test Sites
I2
II18
III38
IV0
V0
VI0
08

Study locations

1 site
  • TKL Research Inc.
    Fair Lawn, New Jersey 07410, United States
09

References and documents

Study documents

  • Study protocol · Jan 10, 2019
  • Statistical analysis plan · Apr 8, 2019

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — Single site study

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 11, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03899064
Lead sponsor
MC2 Therapeutics
Responsible party
Sponsor
First posted
Apr 2, 2019
Start date
Feb 13, 2019
Primary completion
Apr 5, 2019
Completion
Apr 5, 2019
Results posted
Mar 11, 2020
Last update
Mar 11, 2020

Study contacts

Jonathan S Dosik, MD
principal investigator · TKL Research

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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