ClinicalTrials.gg
CompletedNCT03340961Updated Mar 1, 2021Results posted

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

A Phase 2 interventional study of DFD-29 Extended Release Capsules (40 mg) and DFD-29 Extended Release Capsules (20 mg) in Rosacea, sponsored by Dr. Reddy's Laboratories Limited. Completed at 14 sites in Germany. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-03-01.

Sponsored by Dr. Reddy's Laboratories Limited · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
205
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study 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.

Read the 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.

02

Conditions studied

  • Rosacea

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03

In context

Rosacea

233 studies on the registry are indexed under Rosacea; 23 are open to participants now.

This study's enrollment of 205 is above the median of 61 across 200 interventional studies indexed under Rosacea.

Browse Rosacea studies →

Lead sponsor

Dr. Reddy's Laboratories Limited is the lead sponsor of 224 studies on the registry; 2 are open to participants now.

Of its 13 completed or terminated interventional studies of FDA-regulated products, 11 (85%) 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
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Subjects must be able to understand the requirements of the study and be willing to give written .
  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 with no menses for at least 12 months or surgically sterile (hysterectomy or tubal ligation) or agree to use a highly effective method of 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 abnormal vital signs (blood pressure and pulse).

Exclusion criteria

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 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 within the 30 days prior to the Baseline Visit or any other 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.
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
205 participants (actual)

Study arms

  • Experimental
    DFD-29 Extended Release Capsules (40 mg)

    DFD-29 (minocycline HCl) Extended Release Capsules (40 mg) once per day for 16 weeks.

    Drug: DFD-29 Extended Release Capsules (40 mg)

  • Experimental
    DFD-29 Extended Release Capsules (20 mg)

    DFD-29 (minocycline HCl) Extended Release Capsules (20 mg) once per day for 16 weeks.

    Drug: DFD-29 Extended Release Capsules (20 mg)

  • Experimental
    Oraycea® (doxycycline) Capsules

    Oraycea® (doxycycline) Modified Release Hard Capsules (40 mg) once per day for 16 weeks.

    Drug: Oraycea® (doxycycline) Capsules

  • Placebo comparator
    Placebo Capsules

    Placebo Capsules once per day for 16 weeks.

    Drug: Placebo Capsules

Interventions

06

What researchers measure

Primary outcomes

  1. 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

  2. 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

Secondary outcomes

  1. 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

07

Results

Posted Apr 21, 2020

Participant flow

Participant flow — Overall Study
MilestoneDFD-29 Extended Release Capsules (40 mg)DFD-29 Extended Release Capsules (20 mg)Oraycea® (Doxycycline) CapsulesPlacebo Capsules
Started53504953
Completed47384035
Not completed612918
Withdrew: Adverse event1324
Withdrew: Lost to follow-up0101
Withdrew: Withdrawal by subject3247
Withdrew: Use of prohibited treatment0324
Withdrew: Wrongful enrollment (i/e criteria not me0101
Withdrew: Subject developed an exclusion criterion0100
Withdrew: Protocol violation1010
Withdrew: Adverse event1100
Withdrew: Lack of efficacy0001

Outcome measures

PrimaryInvestigator 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
Reported as:
Count of participants · Participants
Investigator Global Assessment (IGA) 0=Clear, 1=Near Clear, 2=Mild, 3=Moderate, 4=Severe
ParticipantsDFD-29 Extended Release Capsules (40 mg)DFD-29 Extended Release Capsules (20 mg)Oraycea® (Doxycycline) CapsulesPlacebo Capsules
Investigator Global Assessment (IGA) 0=Clear, 1=Near Clear, 2=Mild, 3=Moderate, 4=Severe3515166
PrimaryTotal 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
Reported as:
Mean · Count of lesions
Total Inflammatory Lesion Count Reduction
Count of lesionsDFD-29 Extended Release Capsules (40 mg)DFD-29 Extended Release Capsules (20 mg)Oraycea® (Doxycycline) CapsulesPlacebo Capsules
Total Inflammatory Lesion Count Reduction-19.2 ± 9.72-12.6 ± 12.92-10.5 ± 15.18-7.3 ± 10.12
SecondaryMedian 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
Reported as:
Median · score on a scale
Median Change in RosaQoL (Rosacea Quality of Life) Score From Baseline to Week 16
score on a scaleDFD-29 Extended Release Capsules (40 mg)DFD-29 Extended Release Capsules (20 mg)Oraycea® (Doxycycline) CapsulesPlacebo Capsules
Median Change in RosaQoL (Rosacea Quality of Life) Score From Baseline to Week 16-11.0 (-53 to 11)-8.0 (-34 to 8)-3.0 (-30 to 25)-1.0 (-37 to 19)

Adverse events

Collected over AEs were collected from subjects from the time of signing of the ICF up to Week 16/End of Study Visit.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
DFD-29 Extended Release Capsules (40 mg)0/52 (0%)1/52 (1.9%)37/52 (71.2%)
DFD-29 Extended Release Capsules (20 mg)0/48 (0%)2/48 (4.2%)33/48 (68.8%)
Oraycea® (Doxycycline) Capsules0/48 (0%)2/48 (4.2%)27/48 (56.3%)
Placebo Capsules0/53 (0%)0/53 (0%)35/53 (66%)
Most frequent serious events
Most frequent serious events
EventDFD-29 Extended Release Capsules (40 mg)DFD-29 Extended Release Capsules (20 mg)Oraycea® (Doxycycline) CapsulesPlacebo Capsules
Atrial fibrillationCardiac disorders0/521/480/480/53
LymphomaNeoplasms benign, malignant and unspecified (incl cysts and polyps)0/520/481/480/53
PapillomaNervous system disorders0/520/481/480/53
Retinal detachmentEye disorders0/521/480/480/53
Coronary artery diseaseCardiac disorders1/520/480/480/53
Most frequent other events
Most frequent other events
EventDFD-29 Extended Release Capsules (40 mg)DFD-29 Extended Release Capsules (20 mg)Oraycea® (Doxycycline) CapsulesPlacebo Capsules
HeadacheNervous system disorders22/5214/4813/4813/53
NasopharyngitisInvestigations11/528/487/486/35
Back PainMusculoskeletal and connective tissue disorders0/524/484/486/53
DiarrhoeaGastrointestinal disorders4/524/480/483/53
RosaceaSkin and subcutaneous tissue disorders0/520/480/484/53
Abdominal Pain UpperGastrointestinal disorders0/523/483/483/53

Baseline characteristics

The FAS (full analysis set) had all subjects who had at least one post Baseline efficacy assessment.

Age, Categorical
Age, Categorical(Participants)DFD-29 Extended Release Capsules (40 mg)DFD-29 Extended Release Capsules (20 mg)Oraycea® (Doxycycline) CapsulesPlacebo CapsulesTotal
<=18 years00000
Between 18 and 65 years45404042167
>=65 years81091138
Age, Continuous
Age, Continuous(years)DFD-29 Extended Release Capsules (40 mg)DFD-29 Extended Release Capsules (20 mg)Oraycea® (Doxycycline) CapsulesPlacebo CapsulesTotal
Mean46.8 ± 15.0551.1 ± 13.1351.6 ± 12.9452.5 ± 12.9250.5 ± 13.64
Sex: Female, Male
Sex: Female, Male(Participants)DFD-29 Extended Release Capsules (40 mg)DFD-29 Extended Release Capsules (20 mg)Oraycea® (Doxycycline) CapsulesPlacebo CapsulesTotal
Female34342927124
Male1916202681
Race (NIH/OMB)
Race (NIH/OMB)(Participants)DFD-29 Extended Release Capsules (40 mg)DFD-29 Extended Release Capsules (20 mg)Oraycea® (Doxycycline) CapsulesPlacebo CapsulesTotal
American Indian or Alaska Native00000
Asian00000
Native Hawaiian or Other Pacific Islander00000
Black or African American00000
White53504953205
More than one race00000
Unknown or Not Reported00000
Region of Enrollment
Region of Enrollment(participants)DFD-29 Extended Release Capsules (40 mg)DFD-29 Extended Release Capsules (20 mg)Oraycea® (Doxycycline) CapsulesPlacebo CapsulesTotal
Germany53504953205
Total Inflammatory Lesion Count
Total Inflammatory Lesion Count(Number of lesions)DFD-29 Extended Release Capsules (40 mg)DFD-29 Extended Release Capsules (20 mg)Oraycea® (Doxycycline) CapsulesPlacebo CapsulesTotal
Mean23.8 ± 8.6924.5 ± 9.4923.8 ± 7.5624.0 ± 8.4024.0 ± 8.51
08

Study locations

14 sites
  • Site 13
    Bad Bentheim, Germany
  • Site 07
    Berlin, Germany
  • Site 14
    Berlin, Germany
  • Site 09
    Bochum, Germany
  • Site 05
    Buxtehude, Germany
  • Site 15
    Darmstadt, Germany
  • Site 03
    Dülmen, Germany
  • Site 08
    Leipzig, Germany
  • Site 11
    Mahlow, Germany
  • Site 06
    Münster, Germany
  • Site 10
    Osnabrück, Germany
  • Site 01
    Pommelsbrunn, Germany
  • Site 04
    Potsdam, Germany
  • Site 02
    Wuppertal, Germany
09

References and documents

Publications

  • Tsianakas A, Pieber T, Baldwin H, Feichtner F, Alikunju S, Gautam A, Shenoy S, Singh P, Sidgiddi S. Minocycline Extended-Release Comparison with Doxycycline for the Treatment of Rosacea: A Randomized, Head-to-Head, Clinical Trial. J Clin Aesthet Dermatol. 2021 Dec;14(12):16-23. PubMed 35096250 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Oct 2017 to primary completion in Nov 2018, 13 months.

Results were first posted in Apr 2020, 1 year 5 months after primary completion.

Of 20 phase 2 interventional studies under Rosacea, half reached primary completion within 12 months of starting (the median), counting those still running; a quarter within 7 and three quarters within 16. This study's 13 months is close to that.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 19, 2017
First posted
Nov 14, 2017
StartActual
Oct 1, 2017
Primary completionActual
Nov 7, 2018
CompletionActual
Mar 31, 2019
Results first posted
Apr 21, 2020
Last update
Mar 1, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 1, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03340961
Responsible party
Sponsor
First posted
Nov 14, 2017
Start date
Oct 1, 2017
Primary completion
Nov 7, 2018
Completion
Mar 31, 2019
Results posted
Apr 21, 2020
Last update
Mar 1, 2021

Study contacts

Srinivas Sidgiddi, MD
study director · Director-Clinical Development

Oversight

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

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This study is completed, as verified in Feb 2021. You cannot join it, but the record below documents what was studied.

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Studies of the drugs tested here: DFD-29 · Doxycycline

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