Melasma
Conditions
Brief summary
The objective of this study is to evaluate the efficacy and tolerability of Lytera 2.0 versus 4% hydroquinone in the improvement of the appearance of moderate facial melasma.
Interventions
OTHERLytera 2.0
Lytera 2.0 applied to the affected areas twice a day, in the morning and evening, every day for 12 weeks.
DRUG4% Hydroquinone Topical Cream
4% Hydroquinone Topical Cream applied to the affected areas twice a day, in the morning and evening, every day for 12 weeks.
OTHERSkinMedica Facial Cleanser
SkinMedica facial cleanser applied to the face as directed.
OTHERSkinMedica Rejuvenative Moisturizer
SkinMedica rejuvenative moisturizer applied to the face as directed.
OTHERSkinMedica Essential Defense Mineral Shield Broad Spectrum SPF 35 Sunscreen
SkinMedica Essential Defense Mineral Shield Broad Spectrum SPF 35 sunscreen applied to the face as directed.
Sponsors
Allergan
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Female or male aged 18+ years with general good health * Individuals with dark patches on both sides of their face * Individuals that are willing to provide written informed consent and are able to read, speak, write, and understand English. * Individuals willing to sign have their photographs taken during the study and are willing to sign a photography release. * Willing to stop all facial treatments during the course of the study including botulinum toxin, injectable fillers, microdermabrasion, Intense pulsed light (IPL), peels, facials, waxing, laser treatments and tightening treatments. Threading is allowed but not facial laser hair removal. * Willingness to cooperate follow all study requirements for the duration of the study and to report any changes in health status or medications, adverse event symptoms, or reactions immediately. * Willingness to not begin using any new cosmetic facial make-up during the study. If you regularly use cosmetic facial make-up, you must have used the product(s) without any issues for at least 2 weeks prior to starting the study. * Willingness to avoid sun exposure to the face as much as possible, (including tanning beds), especially from 10 AM to 2 PM. Protective clothing (i.e. hats) and the provided sunscreen should be worn prior to and during any exposure.
Exclusion criteria
* Individuals diagnosed with known allergies to study provided skin care products. * Individuals who are nursing, pregnant, or planning to become pregnant during the study according to subject self-report. * Individuals with a history of skin cancer. * Individuals having a health condition on the face (e.g., psoriasis, rosacea, acne, eczema, seborrheic dermatitis, severe excoriations etc.). * Individuals with a history of immunosuppression/immune deficiency disorders (including (Human immunodeficiency virus (HIV) infection or Acquired Immune Deficiency Syndrome (AIDS)) or currently using immunosuppressive medications (e.g., azathioprine, belimumab, cyclophosphamide, Enbrel, Imuran, Humira, mycophenolate mofetil, methotrexate, prednisone, Remicade, Stelara.) and/or radiation. * Individuals with an uncontrolled disease such as asthma, diabetes, hypertension, hyperthyroidism, or hypothyroidism. Individuals having multiple health conditions may be excluded from participation even if the conditions are controlled by diet, medication, etc. * Individuals with any planned surgeries and/or invasive medical procedures during the course of the study. * Individuals who are currently participating in any other facial usage study or have participated in any clinical trial within 4 weeks prior to inclusion into the study. * Individuals who have observable suntan, scars, nevi, excessive hair, etc. or other dermal conditions on the face that might influence the test results in the opinion of the Investigator or designee. * Individuals who started hormone replacement therapies (HRT) or hormones for birth control less than 3 months prior to study entry or who plan on starting, stopping, or changing doses of HRT or hormones for birth control during the study. * Individuals who used any of the following medications or had any of the listed procedures within the listed time frame prior to the study start date: * Retin-A®, Retin-A Micro®, Renova®, Avita®, Tazorac®, or Differin® within 3 months * Had a light-depth chemical peel or microdermabrasion within 1 month * Had a medium-depth chemical peel, medium-depth microdermabrasion, any systemic steroids, non-ablative laser, light and/or radio frequency or fractional laser resurfacing of the face and neck within 3 months * Any systemic retinoid (e.g. Soriatane®, Accutane®, Roche Dermatologics) within 12 months * Any topical or systemic antibiotics, such as minocycline, or any other known medications that can cause photosensitivity, such as hydrochlorothiazide, lasix, amiodarone, within 1 month * Any topical tretinoin product or derivative, imiquimod, 5-fluorouracil, or diclofenac on their face within 3 months * Prescription strength skin lightening products (e.g. 4% hydroquinone, tretinoin, alpha hydroxy acid (AHA), beta hydroxy acid (BHA) and polyhydroxy acids, 15% or 20% azelaic acid, 4-hydroxyanisole alone or in combination with tretinoin, etc.) within 3 months * Any non-prescription cosmetic anti-wrinkle, skin lightening products, or any other product or topical or systemic medication known to affect skin aging or dyshcromia (products containing alpha/beta/poly-hydroxy acids, vitamin C, soy, Q-10, hydroquinone; systemic or licorice extract (topically), Tego® Cosmo C250, gigawhite, lemon juice extract (topically), emblica extract, etc.) within 2 weeks * Have undergone plastic surgery, Dermabrasion (deep skin peel), a deep chemical peel or ablative laser resurfacing of the face and neck within 12 months * Had facial treatment with a botulinum toxin base injectable (Botox), injectable fillers, or a fat transfer within 6 months
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change From Baseline in Melasma Severity Rating Scale Score to Week 12 | Baseline (Day 1) to Week 12 | The investigator assessed the participant's facial skin for the severity of symmetrical facial melasma on the left and the right side of the face using the Melasma Severity Rating Scale. The score ranges from 0 to 3, where 0=Cleared: color of melasma lesions approximately equivalent to surrounding normal skin or with minimal residual hyperpigmentation, 1=Mild: color slightly darker than the surrounding normal skin, 2=Moderate: color moderately darker than the surrounding normal skin and 3=Severe: color markedly darker than the surrounding normal skin. A negative change from Baseline indicates improvement. |
| Change From Baseline in Overall Hyperpigmentation Scale Score to Week 12 | Baseline (Day 1) to Week 12 | The investigator assessed the participant's left and right facial sides for overall hyperpigmentation using the Overall Hyperpigmentation ten-point scale ranging from 0 to 9, where Score 0=None, skin is normal in color with no evidence of hyperpigmentation; Score 1, 2 or 3=Mild, several brown spots with increased pigmentation, they are small in size and slightly darker than surrounding skin; Score 4, 5 or 6=Moderate, many brown spots with increased pigmentation, they are medium in size and much darker than surrounding skin; Score of 7, 8 or 9=Severe, many large brown spots with increased pigmentation, they are large in size and markedly darker than surrounding skin. A negative change from Baseline indicates improvement. |
| Change From Baseline in Melasma Area and Severity Index (MASI) Score to Week 12 | Baseline (Day1) to Week 12 | The investigator assigned a grade for the left and right facial sides for each of the following: A=Total Area Involved (0=No involvement to 6=90 to 100% involvement); D=Darkness of Pigment (0=Normal skin color to 4=Severe hyperpigmentation); and H=Homogeneity (0=Normal skin color without evidence of hyperpigmentation to 4=Uniform skin involvement without any clear areas). Total Half-Face MASI score was calculated as: Half Forehead 0.15(D+H)A + One Malar Side 0.3 (D+H)A + Half Chin 0.05(D+H)A. A negative change from Baseline indicates improvement. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change From Baseline in Melasma Quality of Life (MELASQOL) Scale Total Score to Week 12 | Baseline (Day 1) to Week 12 | The Melasma Quality of Life Scale assesses the effect melasma has on the quality of life of sufferers on a scale of 1 (not bothered at all) to 7 (bothered all of the time), rating the following questions: 1.The appearance of your skin condition 2.Frustration about your skin condition. 3.Embarrassment about your skin condition. 4.Feeling depressed about your skin condition. 5.The effects of your skin condition on your interactions with other people. 6.The effects of your skin condition on your desire to be with people. 7.Your skin condition making it hard to show affection. 8.Skin discoloration making you feel unattractive to others. 9.Skin discoloration making you feel less vital or productive. 10.Skin discoloration affecting your sense of freedom. The MELASQOL is scored from 7 to 70, with a higher score indicating worse melasma-related health-related quality of life. A negative change from Baseline indicates improvement. |
| Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Baseline (Day 1) to Weeks 4, 8 and 12 | Using the Subject Self-Assessment Questionnaire: Overall Improvement, the participant selected a response that best represented their feelings on the overall improvement in their skin condition compared to the beginning of the study. Responses were categorized as: 0=No change or a worsening in my skin condition (dark areas of color on skin), 1=I see a slight improvement in my skin condition (approximately 25% overall improvement), 2=I see a moderate improvement in my skin condition (approximately 50% overall improvement), 3=I see a marked improvement in my skin condition (approximately 75% overall improvement), 4=I see a complete clearing of my skin condition (approximately 95% or better overall improvement). |
| Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12 | Baseline (Day 1) to Week 12 | Two target hyperpigmented lesions were selected from the left and the right malar facial areas and were measured by the mexameter, an instrument that measures melanin content. One target normal measurement was also taken from an unaffected skin area on the face representing normal skin. The values from the target hyperpigmented lesions were compared to the normal lesion value. The range of melamin index and erythema is 0 to 999 Arbitrary Units (AU). A negative change from Baseline indicates improvement. |
| Investigator's Global Improvement Assessment for Overall Hyperpigmentation Score to Week 12 | Week 12 | Investigator's global improvement assessment score was used for assessment of overall hyperpigmentation on the left and right facial sides. The score ranged from 0 to 4 where, 0=No change or worsening, 1=Mild improvement (approximately 25% overall improvement), 2=Moderate improvement (approximately 50% overall improvement), 3=Marked improvement (approximately 75% overall improvement), 4=Complete clearing/Dramatic improvement (approximately 95% plus overall improvement). The mean score for overall hyperpigmentation was reported. |
| Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Weeks 4, 8 and 12 | Using the Subject Self-Assessment Questionnaire: Satisfaction with Treatment, the participant selected a response that best represented their overall satisfaction with the test product. Responses were categorized as: 1=Excellent (very satisfied), 2=Good (moderately satisfied), 3=Fair (slightly satisfied) and 4=Poor (not satisfied at all). |
| Number of Participants by Responses for Self-Assessment Questionnaire: Test Product Preference | Weeks 4, 8 and 12 | Using the Subject Self-Assessment Questionnaire: Facial Side Preference, the participant selected based on their experience, the Test Product they preferred to use. |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| All Participants Participants were randomized to one of two treatment groups: Left side Lytera 2.0, Right side 4% hydroquinone or Left Side 4% hydroquinone, Right Side Lytera 2.0. Lytera 2.0 applied to the affected areas (dark patches) on one side of the face and 4% hydroquinone topical prescription cream applied to the affected areas on the other side of the face twice a day, in the morning and evening, every day for 12 weeks. SkinMedica Facial Cleanser, SkinMedica Rejuvenative Moisturizer, and SkinMedica Essential Defense Mineral Shield Broad Spectrum SPF 35 Sunscreen were also applied to the face as directed. | 18 |
| Total | 18 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Overall Study | Lost to Follow-up | 1 | 0 |
| Overall Study | Protocol Deviation | 1 | 0 |
Baseline characteristics
| Characteristic | All Participants |
|---|---|
| Age, Continuous | 53 years STANDARD_DEVIATION 10.1 |
| Race/Ethnicity, Customized African American | 6 Participants |
| Race/Ethnicity, Customized Asian | 1 Participants |
| Race/Ethnicity, Customized Hispanic | 9 Participants |
| Race/Ethnicity, Customized Other | 2 Participants |
| Sex: Female, Male Female | 17 Participants |
| Sex: Female, Male Male | 1 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 0 / 8 | 0 / 10 |
| other Total, other adverse events | 5 / 8 | 4 / 10 |
| serious Total, serious adverse events | 1 / 8 | 0 / 10 |
Outcome results
Primary
Change From Baseline in Melasma Area and Severity Index (MASI) Score to Week 12
The investigator assigned a grade for the left and right facial sides for each of the following: A=Total Area Involved (0=No involvement to 6=90 to 100% involvement); D=Darkness of Pigment (0=Normal skin color to 4=Severe hyperpigmentation); and H=Homogeneity (0=Normal skin color without evidence of hyperpigmentation to 4=Uniform skin involvement without any clear areas). Total Half-Face MASI score was calculated as: Half Forehead 0.15(D+H)A + One Malar Side 0.3 (D+H)A + Half Chin 0.05(D+H)A. A negative change from Baseline indicates improvement.
Time frame: Baseline (Day1) to Week 12
Population: ITT population included all enrolled participants with at least one follow-up visit. Number analyzed is the number of participants with data available for analysis at the given time-point.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Lytera 2.0 | Change From Baseline in Melasma Area and Severity Index (MASI) Score to Week 12 | Baseline | 9.0 score on a scale | Standard Deviation 3.9 |
| Lytera 2.0 | Change From Baseline in Melasma Area and Severity Index (MASI) Score to Week 12 | Change from Baseline to Week 12 | -1.2 score on a scale | Standard Deviation 1.8 |
| 4% Hydroquinone Topical Cream | Change From Baseline in Melasma Area and Severity Index (MASI) Score to Week 12 | Baseline | 8.9 score on a scale | Standard Deviation 3.8 |
| 4% Hydroquinone Topical Cream | Change From Baseline in Melasma Area and Severity Index (MASI) Score to Week 12 | Change from Baseline to Week 12 | -3.1 score on a scale | Standard Deviation 3.5 |
Comparison: Testing hypothesis was that the mean change from baseline was zero.p-value: 0.004Paired t-test
Comparison: Testing hypothesis was that the mean change from baseline was zero.p-value: 0.001Paired t-test
Primary
Change From Baseline in Melasma Severity Rating Scale Score to Week 12
The investigator assessed the participant's facial skin for the severity of symmetrical facial melasma on the left and the right side of the face using the Melasma Severity Rating Scale. The score ranges from 0 to 3, where 0=Cleared: color of melasma lesions approximately equivalent to surrounding normal skin or with minimal residual hyperpigmentation, 1=Mild: color slightly darker than the surrounding normal skin, 2=Moderate: color moderately darker than the surrounding normal skin and 3=Severe: color markedly darker than the surrounding normal skin. A negative change from Baseline indicates improvement.
Time frame: Baseline (Day 1) to Week 12
Population: Intent-to-treat (ITT) Population included all enrolled participants with at least one follow-up visit. Number analyzed is the number of participants with data available for analysis at the given time-point.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Lytera 2.0 | Change From Baseline in Melasma Severity Rating Scale Score to Week 12 | Baseline | 2.1 score on a scale | Standard Deviation 0.3 |
| Lytera 2.0 | Change From Baseline in Melasma Severity Rating Scale Score to Week 12 | Change from Baseline to Week 12 | -0.3 score on a scale | Standard Deviation 0.4 |
| 4% Hydroquinone Topical Cream | Change From Baseline in Melasma Severity Rating Scale Score to Week 12 | Baseline | 2.1 score on a scale | Standard Deviation 0.3 |
| 4% Hydroquinone Topical Cream | Change From Baseline in Melasma Severity Rating Scale Score to Week 12 | Change from Baseline to Week 12 | -0.8 score on a scale | Standard Deviation 0.7 |
Comparison: Testing hypothesis was that the mean change from baseline was zero.p-value: 0.041Paired t-test
Comparison: Testing hypothesis was that the mean change from baseline was zero.p-value: 0.0005Paired t-test
Primary
Change From Baseline in Overall Hyperpigmentation Scale Score to Week 12
The investigator assessed the participant's left and right facial sides for overall hyperpigmentation using the Overall Hyperpigmentation ten-point scale ranging from 0 to 9, where Score 0=None, skin is normal in color with no evidence of hyperpigmentation; Score 1, 2 or 3=Mild, several brown spots with increased pigmentation, they are small in size and slightly darker than surrounding skin; Score 4, 5 or 6=Moderate, many brown spots with increased pigmentation, they are medium in size and much darker than surrounding skin; Score of 7, 8 or 9=Severe, many large brown spots with increased pigmentation, they are large in size and markedly darker than surrounding skin. A negative change from Baseline indicates improvement.
Time frame: Baseline (Day 1) to Week 12
Population: ITT population included all enrolled participants with at least one follow-up visit. Number analyzed is the number of participants with data available for analysis at the given time-point.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Lytera 2.0 | Change From Baseline in Overall Hyperpigmentation Scale Score to Week 12 | Baseline | 4.8 score on a scale | Standard Deviation 1.1 |
| Lytera 2.0 | Change From Baseline in Overall Hyperpigmentation Scale Score to Week 12 | Change from Baseline to Week 12 | -0.8 score on a scale | Standard Deviation 1 |
| 4% Hydroquinone Topical Cream | Change From Baseline in Overall Hyperpigmentation Scale Score to Week 12 | Baseline | 4.8 score on a scale | Standard Deviation 1.1 |
| 4% Hydroquinone Topical Cream | Change From Baseline in Overall Hyperpigmentation Scale Score to Week 12 | Change from Baseline to Week 12 | -1.7 score on a scale | Standard Deviation 1.3 |
Comparison: Testing hypothesis was that the mean change from baseline was zero.p-value: 0.002Paired t-test
Comparison: Testing hypothesis was that the mean change from baseline was zero.p-value: 0.0001Paired t-test
Secondary
Change From Baseline in Melasma Quality of Life (MELASQOL) Scale Total Score to Week 12
The Melasma Quality of Life Scale assesses the effect melasma has on the quality of life of sufferers on a scale of 1 (not bothered at all) to 7 (bothered all of the time), rating the following questions: 1.The appearance of your skin condition 2.Frustration about your skin condition. 3.Embarrassment about your skin condition. 4.Feeling depressed about your skin condition. 5.The effects of your skin condition on your interactions with other people. 6.The effects of your skin condition on your desire to be with people. 7.Your skin condition making it hard to show affection. 8.Skin discoloration making you feel unattractive to others. 9.Skin discoloration making you feel less vital or productive. 10.Skin discoloration affecting your sense of freedom. The MELASQOL is scored from 7 to 70, with a higher score indicating worse melasma-related health-related quality of life. A negative change from Baseline indicates improvement.
Time frame: Baseline (Day 1) to Week 12
Population: ITT population included all enrolled participants with at least one follow-up visit. Number analyzed is the number of participants with data available for analysis at the given time-point.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Lytera 2.0 | Change From Baseline in Melasma Quality of Life (MELASQOL) Scale Total Score to Week 12 | Baseline | 45.9 score on a scale | Standard Deviation 19 |
| Lytera 2.0 | Change From Baseline in Melasma Quality of Life (MELASQOL) Scale Total Score to Week 12 | Change from Baseline to Week 12 | -15.0 score on a scale | Standard Deviation 16.3 |
| 4% Hydroquinone Topical Cream | Change From Baseline in Melasma Quality of Life (MELASQOL) Scale Total Score to Week 12 | Baseline | 46.2 score on a scale | Standard Deviation 19.5 |
| 4% Hydroquinone Topical Cream | Change From Baseline in Melasma Quality of Life (MELASQOL) Scale Total Score to Week 12 | Change from Baseline to Week 12 | -21.7 score on a scale | Standard Deviation 19.5 |
Comparison: Testing hypothesis was that the mean change from baseline was zero.p-value: 0.003Paired t-test
Comparison: Testing hypothesis was that the mean change from baseline was zero.p-value: 0.0007Paired t-test
Secondary
Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12
Two target hyperpigmented lesions were selected from the left and the right malar facial areas and were measured by the mexameter, an instrument that measures melanin content. One target normal measurement was also taken from an unaffected skin area on the face representing normal skin. The values from the target hyperpigmented lesions were compared to the normal lesion value. The range of melamin index and erythema is 0 to 999 Arbitrary Units (AU). A negative change from Baseline indicates improvement.
Time frame: Baseline (Day 1) to Week 12
Population: ITT population included all enrolled participants with at least one follow-up visit. Number analyzed is the number of participants with data available for analysis at the given time-point.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Lytera 2.0 | Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12 | Baseline (Melanin index) | 581.1 AU | Standard Deviation 79.7 |
| Lytera 2.0 | Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12 | Change from Baseline to Week 12 (Melanin index) | -3.0 AU | Standard Deviation 27.5 |
| Lytera 2.0 | Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12 | Baseline (Erythema) | 578.9 AU | Standard Deviation 37.8 |
| Lytera 2.0 | Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12 | Change from Baseline to Week 12 (Erythema) | 3.4 AU | Standard Deviation 26.2 |
| 4% Hydroquinone Topical Cream | Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12 | Change from Baseline to Week 12 (Erythema) | -0.1 AU | Standard Deviation 14.6 |
| 4% Hydroquinone Topical Cream | Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12 | Baseline (Melanin index) | 587.1 AU | Standard Deviation 73.4 |
| 4% Hydroquinone Topical Cream | Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12 | Baseline (Erythema) | 584.5 AU | Standard Deviation 27.6 |
| 4% Hydroquinone Topical Cream | Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12 | Change from Baseline to Week 12 (Melanin index) | -26.5 AU | Standard Deviation 21.6 |
| Normal Skin | Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12 | Change from Baseline to Week 12 (Erythema) | 9.4 AU | Standard Deviation 25 |
| Normal Skin | Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12 | Change from Baseline to Week 12 (Melanin index) | -2.4 AU | Standard Deviation 32.8 |
| Normal Skin | Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12 | Baseline (Erythema) | 572.7 AU | Standard Deviation 36 |
| Normal Skin | Change From Baseline in Mexameter Measurement of Target Hyperpigmentation Lesion to Week 12 | Baseline (Melanin index) | 544.5 AU | Standard Deviation 64.1 |
Comparison: Melanin index: Testing hypothesis is that the mean change from baseline is zero.p-value: 0.569Paired t-test
Comparison: Melanin index: Testing hypothesis is that the mean change from baseline is zero.p-value: 0.00009Paired t-test
Comparison: Erythema: Testing hypothesis is that the mean change from baseline is zero.p-value: 0.821Paired t-test
Comparison: Erythema: Testing hypothesis is that the mean change from baseline is zero.p-value: 0.502Paired t-test
Comparison: Melanin index: Testing hypothesis is that the mean change from baseline is zero.p-value: 0.81Paired t-test
Comparison: Erythema: Testing hypothesis is that the mean change from baseline is zero.p-value: 0.435Paired t-test
Secondary
Investigator's Global Improvement Assessment for Overall Hyperpigmentation Score to Week 12
Investigator's global improvement assessment score was used for assessment of overall hyperpigmentation on the left and right facial sides. The score ranged from 0 to 4 where, 0=No change or worsening, 1=Mild improvement (approximately 25% overall improvement), 2=Moderate improvement (approximately 50% overall improvement), 3=Marked improvement (approximately 75% overall improvement), 4=Complete clearing/Dramatic improvement (approximately 95% plus overall improvement). The mean score for overall hyperpigmentation was reported.
Time frame: Week 12
Population: ITT population included all enrolled participants with at least one follow-up visit. Number analyzed is the number of participants with data available for analysis at the given time-point.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Lytera 2.0 | Investigator's Global Improvement Assessment for Overall Hyperpigmentation Score to Week 12 | 1.1 score on a scale | Standard Deviation 0.9 |
| 4% Hydroquinone Topical Cream | Investigator's Global Improvement Assessment for Overall Hyperpigmentation Score to Week 12 | 1.8 score on a scale | Standard Deviation 1.2 |
Secondary
Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition
Using the Subject Self-Assessment Questionnaire: Overall Improvement, the participant selected a response that best represented their feelings on the overall improvement in their skin condition compared to the beginning of the study. Responses were categorized as: 0=No change or a worsening in my skin condition (dark areas of color on skin), 1=I see a slight improvement in my skin condition (approximately 25% overall improvement), 2=I see a moderate improvement in my skin condition (approximately 50% overall improvement), 3=I see a marked improvement in my skin condition (approximately 75% overall improvement), 4=I see a complete clearing of my skin condition (approximately 95% or better overall improvement).
Time frame: Baseline (Day 1) to Weeks 4, 8 and 12
Population: ITT population included all enrolled participants with at least one follow-up visit. Number analyzed is the number of participants with data available for analysis at the given time-point.
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 4: 4- Complete clearing of skin | 0 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 8: 3- Marked improvement | 2 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 4: 1- Slight improvement | 8 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 8: 4- Complete clearing of skin | 2 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 8: 0- No change | 2 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 12: 0- No change | 4 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 4: 3- Marked improvement | 1 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 12: 1- Slight improvement | 2 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 8: 1- Slight improvement | 7 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 12: 2- Moderate improvement | 5 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 4: 2- Moderate improvement | 3 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 12: 3- Marked improvement | 5 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 8: 2- Moderate improvement | 3 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 12: 4- Complete clearing of skin | 0 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 4: 0- No change | 5 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 12: 4- Complete clearing of skin | 2 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 4: 0- No change | 2 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 4: 1- Slight improvement | 11 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 4: 2- Moderate improvement | 3 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 4: 3- Marked improvement | 2 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 4: 4- Complete clearing of skin | 0 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 8: 0- No change | 0 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 8: 1- Slight improvement | 5 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 8: 2- Moderate improvement | 4 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 8: 3- Marked improvement | 4 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 8: 4- Complete clearing of skin | 3 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 12: 0- No change | 1 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 12: 1- Slight improvement | 2 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 12: 2- Moderate improvement | 3 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Improvement in Skin Condition | Week 12: 3- Marked improvement | 8 Participants |
Secondary
Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product
Using the Subject Self-Assessment Questionnaire: Satisfaction with Treatment, the participant selected a response that best represented their overall satisfaction with the test product. Responses were categorized as: 1=Excellent (very satisfied), 2=Good (moderately satisfied), 3=Fair (slightly satisfied) and 4=Poor (not satisfied at all).
Time frame: Weeks 4, 8 and 12
Population: ITT population included all enrolled participants with at least one follow-up visit. Number analyzed is the number of participants with data available for analysis at the given time-point.
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 4: 1- Excellent (very satisfied) | 3 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 4: 2- Good (moderately satisfied) | 9 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 4: 3- Fair (slightly satisfied) | 5 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 4: 4- Poor (not satisfied at all) | 1 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 8: 1- Excellent (very satisfied) | 4 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 8: 2- Good (moderately satisfied) | 7 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 8: 3- Fair (slightly satisfied) | 4 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 8: 4- Poor (not satisfied at all) | 1 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 12: 1- Excellent (very satisfied) | 5 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 12: 2- Good (moderately satisfied) | 2 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 12: 3- Fair (slightly satisfied) | 6 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 12: 4- Poor (not satisfied at all) | 3 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 12: 3- Fair (slightly satisfied) | 2 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 4: 1- Excellent (very satisfied) | 6 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 8: 3- Fair (slightly satisfied) | 1 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 4: 2- Good (moderately satisfied) | 9 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 12: 2- Good (moderately satisfied) | 8 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 4: 3- Fair (slightly satisfied) | 3 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 8: 4- Poor (not satisfied at all) | 0 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 4: 4- Poor (not satisfied at all) | 0 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 12: 4- Poor (not satisfied at all) | 1 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 8: 1- Excellent (very satisfied) | 7 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 12: 1- Excellent (very satisfied) | 5 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Overall Satisfaction With the Test Product | Week 8: 2- Good (moderately satisfied) | 8 Participants |
Secondary
Number of Participants by Responses for Self-Assessment Questionnaire: Test Product Preference
Using the Subject Self-Assessment Questionnaire: Facial Side Preference, the participant selected based on their experience, the Test Product they preferred to use.
Time frame: Weeks 4, 8 and 12
Population: ITT population included all enrolled participants with at least one follow-up visit. Number analyzed is the number of participants with data available for analysis at the given time-point.
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Test Product Preference | Week 4 | 6 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Test Product Preference | Week 8 | 3 Participants |
| Lytera 2.0 | Number of Participants by Responses for Self-Assessment Questionnaire: Test Product Preference | Week 12 | 3 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Test Product Preference | Week 4 | 12 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Test Product Preference | Week 8 | 13 Participants |
| 4% Hydroquinone Topical Cream | Number of Participants by Responses for Self-Assessment Questionnaire: Test Product Preference | Week 12 | 13 Participants |