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A Controlled Study to Assess the Efficacy, Safety and Tolerability of Oral DFD-29 Extended Release Capsules

A Multi-Center, Randomized, Double-Blind, Parallel-Group, Controlled Study to Assess the Efficacy, Safety and Tolerability of Oral DFD-29 Extended Release Capsules for the Treatment of Inflammatory Lesions of Rosacea Over 16 Weeks

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03340961
Enrollment
205
Registered
2017-11-14
Start date
2017-10-01
Completion date
2019-03-31
Last updated
2021-03-01

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

Conditions

Rosacea

Brief summary

Clinical assessments of efficacy will be conducted based on Investigator's Global Assessment (IGA, modified scale without erythema), Clinician's Erythema Assessment (CEA), and on inflammatory lesion counts at Weeks 4, 8, 12 and 16 in comparison to Baseline.

Detailed description

Two hundred (200) male and female subjects with papulopustular rosacea will be enrolled to get 176 completed subjects (forty-four (44) completers each in groups 1 to 4). After assessing eligibility during an up to 28 days screening period, 200 subjects will be enrolled in the study (fifty subjects each in groups 1 to 4). Subject visits are scheduled at Screening, Baseline (Day 1), and Weeks 4, 8, 12 and 16. Clinical assessments of efficacy will be conducted based on Investigator's Global Assessment (IGA, modified scale without erythema), Clinician's Erythema Assessment (CEA), and on inflammatory lesion counts at Weeks 4, 8, 12 and 16 in comparison to Baseline. Additionally, high sensitivity C-reactive protein (hs-CRP) in the blood will be assessed at Baseline, and at Week 16 to explore any impact of the treatment on the inflammatory pathology.

Interventions

DRUGDFD-29 Extended Release Capsules (40 mg)

Oral Treatment

DRUGDFD-29 Extended Release Capsules (20 mg)

Oral Treatment

DRUGOraycea® (doxycycline) Capsules

Oral Treatment

DRUGPlacebo Capsules

Oral Treatment

Sponsors

Dr. Reddy's Laboratories Limited
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Each subject will be allocated to one of the following treatment groups, receiving 1 capsule once daily in the morning for 16 weeks: 1. DFD-29 Extended Release Capsules (40 mg) 2. DFD-29 Extended Release Capsules (20 mg) 3. Doxycycline Modified Release Hard Capsules (40 mg) 4. Placebo Capsules

Intervention model description

A Multi-Center, Randomized, Double-Blind, Parallel-Group, Controlled Study

Eligibility

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

Inclusion criteria

1. Subjects must be able to understand the requirements of the study and be willing to give written informed consent. 2. Male and female subjects aged 18 years and above. 3. Subjects, any gender or ethnicity (and of Fitzpatrick skin type I - III), must be in good general health as determined by the Investigator. 4. Subjects must have a clinical diagnosis of papulopustular rosacea, IGA grade 2 - 4. 5. Subjects must have 10 - 40 (both inclusive) inflammatory lesions (papules and pustules) of rosacea over the face. 6. Subjects must have not more than 2 nodules. 7. Subjects with moderate to severe erythema with a total score of 5 - 20 on the CEA scale. 8. Females must have a negative urine pregnancy test at the screening and baseline visit. 9. Females must either be postmenopausal with no menses for at least 12 months or surgically sterile (hysterectomy or tubal ligation) or agree to use a highly effective method of contraception with a pearl index of \<1% up to 1 month after last dose. 10. Subjects must be in good general health as determined by the investigator and supported by the medical history and normal or not clinically significant abnormal vital signs (blood pressure and pulse).

Exclusion criteria

1. Females who are pregnant or nursing or planning to become pregnant during the study. 2. Male whose female partner is planning to conceive a child. 3. Subjects who have been treated for rosacea within the 30 days prior to the Baseline Visit (e.g. metronidazole, azelaic acid, doxycycline or brimonidine). 4. Subjects who have been treated with systemic retinoids within 6 months prior to the Baseline visit. 5. Subjects who have participated in a trial involving any investigational product in the 90 days prior to the Baseline Visit. 6. Subjects with any disease or medical condition that would interfere with the study outcome or place the subject at undue risk. 7. Subjects who use or have used systemic steroids within the 30 days prior to the Baseline Visit or any other immunosuppressive medication. 8. Subjects who are on anti-coagulants or those who are likely to require anti-coagulants during the study period. 9. History of drug or alcohol abuse in the last year.

Design outcomes

Primary

MeasureTime frameDescription
Investigator Global Assessment (IGA) 0=Clear, 1=Near Clear, 2=Mild, 3=Moderate, 4=Severe16 weeksProportion of subjects with Investigator Global Assessment (IGA) 'treatment success' - Grade 0 or 1 at the end of study with at least 2 grade reduction from Baseline to Week 16.
Total Inflammatory Lesion Count Reduction16 WeeksThe total inflammatory lesion count is carried out by visual inspection by the Investigator at every study visit from Screening up to Week 16 (or at early termination). Inflammatory lesions will be recorded on a diagram of a human face, divided in 4 quadrants.

Secondary

MeasureTime frameDescription
Median Change in RosaQoL (Rosacea Quality of Life) Score From Baseline to Week 16Median change in the score from Baseline to Week 16The RosaQoL assessment is carried out by the Investigator using the validated RosaQoL questionnaire, at every study visit from Screening up to Week 16 (or at early termination). The RosaQol tool has 21 questions related to the impact that Rosacea has on various dimensions influencing quality of life. Each question is graded from 1 (Never) - 5 (All the time), thus leading to a minimum score of 21 (21 x 1) to a maximum score of 105 (21 x 5) per subject at every visit. Higher the score, poorer is the quality of life. This outcome measured the change in the score from Baseline to Week 16.

Countries

Germany

Participant flow

Participants by arm

ArmCount
DFD-29 Extended Release Capsules (40 mg)
DFD-29 (minocycline HCl) Extended Release Capsules (40 mg) once per day for 16 weeks. DFD-29 Extended Release Capsules (40 mg): Oral Treatment
53
DFD-29 Extended Release Capsules (20 mg)
DFD-29 (minocycline HCl) Extended Release Capsules (20 mg) once per day for 16 weeks. DFD-29 Extended Release Capsules (20 mg): Oral Treatment
50
Oraycea® (Doxycycline) Capsules
Oraycea® (doxycycline) Modified Release Hard Capsules (40 mg) once per day for 16 weeks. Oraycea® (doxycycline) Capsules: Oral Treatment
49
Placebo Capsules
Placebo Capsules once per day for 16 weeks. Placebo Capsules: Oral Treatment
53
Total205

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event1324
Overall StudyLack of Efficacy0001
Overall StudyLost to Follow-up0101
Overall StudyProtocol Violation1010
Overall StudySubject developed an exclusion criterion0100
Overall StudyUse of prohibited treatment0324
Overall StudyWithdrawal by Subject3247
Overall StudyWrongful enrollment (I/E criteria not me0101

Baseline characteristics

CharacteristicDFD-29 Extended Release Capsules (40 mg)DFD-29 Extended Release Capsules (20 mg)Oraycea® (Doxycycline) CapsulesPlacebo CapsulesTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
8 Participants10 Participants9 Participants11 Participants38 Participants
Age, Categorical
Between 18 and 65 years
45 Participants40 Participants40 Participants42 Participants167 Participants
Age, Continuous46.8 years
STANDARD_DEVIATION 15.05
51.1 years
STANDARD_DEVIATION 13.13
51.6 years
STANDARD_DEVIATION 12.94
52.5 years
STANDARD_DEVIATION 12.92
50.5 years
STANDARD_DEVIATION 13.64
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
53 Participants50 Participants49 Participants53 Participants205 Participants
Region of Enrollment
Germany
53 participants50 participants49 participants53 participants205 participants
Sex: Female, Male
Female
34 Participants34 Participants29 Participants27 Participants124 Participants
Sex: Female, Male
Male
19 Participants16 Participants20 Participants26 Participants81 Participants
Total Inflammatory Lesion Count23.8 Number of lesions
STANDARD_DEVIATION 8.69
24.5 Number of lesions
STANDARD_DEVIATION 9.49
23.8 Number of lesions
STANDARD_DEVIATION 7.56
24.0 Number of lesions
STANDARD_DEVIATION 8.4
24.0 Number of lesions
STANDARD_DEVIATION 8.51

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 520 / 480 / 480 / 53
other
Total, other adverse events
37 / 5233 / 4827 / 4835 / 53
serious
Total, serious adverse events
1 / 522 / 482 / 480 / 53

Outcome results

Primary

Investigator Global Assessment (IGA) 0=Clear, 1=Near Clear, 2=Mild, 3=Moderate, 4=Severe

Proportion of subjects with Investigator Global Assessment (IGA) 'treatment success' - Grade 0 or 1 at the end of study with at least 2 grade reduction from Baseline to Week 16.

Time frame: 16 weeks

Population: The FAS (full analysis set) included all subjects that had at least one post Baseline efficacy assessment.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
DFD-29 Extended Release Capsules (40 mg)Investigator Global Assessment (IGA) 0=Clear, 1=Near Clear, 2=Mild, 3=Moderate, 4=Severe35 Participants
DFD-29 Extended Release Capsules (20 mg)Investigator Global Assessment (IGA) 0=Clear, 1=Near Clear, 2=Mild, 3=Moderate, 4=Severe15 Participants
Oraycea® (Doxycycline) CapsulesInvestigator Global Assessment (IGA) 0=Clear, 1=Near Clear, 2=Mild, 3=Moderate, 4=Severe16 Participants
Placebo CapsulesInvestigator Global Assessment (IGA) 0=Clear, 1=Near Clear, 2=Mild, 3=Moderate, 4=Severe6 Participants
Primary

Total Inflammatory Lesion Count Reduction

The total inflammatory lesion count is carried out by visual inspection by the Investigator at every study visit from Screening up to Week 16 (or at early termination). Inflammatory lesions will be recorded on a diagram of a human face, divided in 4 quadrants.

Time frame: 16 Weeks

Population: FAS population

ArmMeasureValue (MEAN)Dispersion
DFD-29 Extended Release Capsules (40 mg)Total Inflammatory Lesion Count Reduction-19.2 Count of lesionsStandard Deviation 9.72
DFD-29 Extended Release Capsules (20 mg)Total Inflammatory Lesion Count Reduction-12.6 Count of lesionsStandard Deviation 12.92
Oraycea® (Doxycycline) CapsulesTotal Inflammatory Lesion Count Reduction-10.5 Count of lesionsStandard Deviation 15.18
Placebo CapsulesTotal Inflammatory Lesion Count Reduction-7.3 Count of lesionsStandard Deviation 10.12
Secondary

Median Change in RosaQoL (Rosacea Quality of Life) Score From Baseline to Week 16

The RosaQoL assessment is carried out by the Investigator using the validated RosaQoL questionnaire, at every study visit from Screening up to Week 16 (or at early termination). The RosaQol tool has 21 questions related to the impact that Rosacea has on various dimensions influencing quality of life. Each question is graded from 1 (Never) - 5 (All the time), thus leading to a minimum score of 21 (21 x 1) to a maximum score of 105 (21 x 5) per subject at every visit. Higher the score, poorer is the quality of life. This outcome measured the change in the score from Baseline to Week 16.

Time frame: Median change in the score from Baseline to Week 16

Population: FAS Population

ArmMeasureValue (MEDIAN)
DFD-29 Extended Release Capsules (40 mg)Median Change in RosaQoL (Rosacea Quality of Life) Score From Baseline to Week 16-11.0 score on a scale
DFD-29 Extended Release Capsules (20 mg)Median Change in RosaQoL (Rosacea Quality of Life) Score From Baseline to Week 16-8.0 score on a scale
Oraycea® (Doxycycline) CapsulesMedian Change in RosaQoL (Rosacea Quality of Life) Score From Baseline to Week 16-3.0 score on a scale
Placebo CapsulesMedian Change in RosaQoL (Rosacea Quality of Life) Score From Baseline to Week 16-1.0 score on a scale

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