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Acne VulgarisPhase 4NCT03883269

Anti-inflammatory Effects of Topical Erythromycin and Clindamycin in Acne Patients

A Phase 4 study testing Erythromycin 4% topical gel formulation, Clindamycin 1% topical lotion formulation and 70% topical ethanol solution in people with Acne Vulgaris, run by Centre for Human Drug Research, Netherlands at 1 site in Netherlands.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The combined bacteriostatic and immunomodulatory effects of erythromycin and clindamycin will be explored. Treatment effects will be extensively characterized by conventional methods including lesion counts, global assessment scales and visual grading as well as state-of-the-art methodology, including multi-modal… Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Acne Vulgaris
What is being tested?
Erythromycin 4% topical gel formulation, Clindamycin 1% topical lotion formulation and 70% topical ethanol solution
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
30 participants
Where
1 siteNetherlands
Study dates
20 Mar 2018to Dec 2019
Phase
Phase 4
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy male and female subjects, 18 to 45 years of age. The health status is verified by absence of evidence of any clinical significant active or uncontrolled chronic disease other than AV following a detailed medical history, a complete physical examination including vital signs, 12-lead ECG, hematology, blood chemistry, virology and urinalysis;
  • Mild to moderate inflammatory acne vulgaris on the face, ≥5 inflammatory lesions (papules and/or pustules), present at screening and baseline visit
  • A maximum of 5 nodules present at screening and baseline visit
  • Inflammatory acne present for at least 6 months
  • Fitzpatrick skin type I-II (Caucasian)
  • Able and willing to give written informed consent and to comply with the study restrictions.
  • Willing to comply with 2x2mm facial skin punch biopsies

Who cannot join

  • Severe acne where systemic treatment is needed
  • Use of any topical (anti-acne) medication (prescription or OTC) within 2 weeks prior to baseline
  • Use of any oral/systemic treatment for acne, including oral antibiotics, excluding OAC, within 4 weeks prior to baseline
  • Use of systemic isotretinoin within 6 months prior to baseline
  • History of pathological scar formation (keloid, hypertrophic scar)
  • Known hypersensitivity to erythromycin or clindamycin, drugs of the same class, or any of their excipients.
Show all 11Show fewer
  • Known contact dermatitis reaction to any product
  • Tanning due to sunbathing, excessive sun exposure or a tanning booth within 3 weeks of enrollment.
  • Participation in an investigational drug or device study within 3 months prior to screening or more than 4 times a year.
  • Loss or donation of blood over 500 mL within three months (males) or four months (females) prior to screening
  • Pregnant, a positive pregnancy test, intending to become pregnant, or breastfeeding

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Robert Rissmann, PharmD, PhD contact

+31 71 5246 400

clintrials@chdr.nl

Netherlands1 site, 1 recruiting
  • Centre for Human Drug Research

    Leiden, 2333 CL

    Robert Rissmann, PharmD, PhD, +31 71 5246 400, clintrials@chdr.nl

    Diana Noort, +31 71 5246 400, clintrials@chdr.nl

    Recruiting

Other trials in Netherlands

About this study

Official title: A Randomized, Placebo-controlled, Evaluator-blinded, Study to Assess the Anti-inflammatory Effects of Topical Erythromycin and Clindamycin in Patients With Inflammatory Facial Acne

The combined bacteriostatic and immunomodulatory effects of erythromycin and clindamycin will be explored. Treatment effects will be extensively characterized by conventional methods including lesion counts, global assessment scales and visual grading as well as state-of-the-art methodology, including multi-modal photo analysis, perfusion by laser speckle contrast imaging, analysis of local skin surface, biopsy biomarkers and skin microbiota. This extensive response profiling, combined with the mechanistic insights from concurrent in vitro and in vivo studies in healthy volunteer challenges, will increase the understanding of erythromycin's and clindamycin's effects in acne vulgaris.

Conditions
Acne Vulgaris
Being tested
Erythromycin 4% topical gel formulation, Clindamycin 1% topical lotion formulation, 70% topical ethanol solution
Medical subject headings
Acne Vulgaris

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Erythromycin 4% topical gel formulationDrug

    Erythromycin 4% topical gel formulation, BID, 4 weeks

  • Clindamycin 1% topical lotion formulationDrug

    Clindamycin 1% topical lotion formulation, BID, 4 weeks

  • 70% topical ethanol solutionDrug

    70% topical ethanol solution, BID, 4 weeks

Study groups in NCT03883269
Study groupRoleWhat they receive
Erythromycin 4%ExperimentalErythromycin 4% topical gel formulation, BID, 4 weeks
Receives: Drug: Erythromycin 4% topical gel formulation
Clindamycin 1%ExperimentalClindamycin 1% topical lotion formulation, BID, 4 weeks
Receives: Drug: Clindamycin 1% topical lotion formulation
ethanol solutionPlacebo comparator70% topical ethanol solution, BID, 4 weeks
Receives: Drug: 70% topical ethanol solution

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Efficacy endpoint 1 - Change in lesion count

    The inflammatory lesions include papules pustules and nodules/cysts. At screening and every study visit, the evaluator will count the inflammatory lesions separately by area on the face (forehead, right cheek, left cheek, chin and nose). All lesion counts during the treatment and follow-up period will be performed by a treatment-blinded evaluator

    Measured: Day 0, day 7, day 14, day 21, day 28 and day 42

  2. Efficacy endpoint 2 - Change in investigator Global Assessment acne (IGA)

    Acne severity will be assessed at screening and every study visit by the Investigator Global Assessment for facial acne (clear, almost clear, mild, moderate, severe, very severe). This will be done by a treatment blinded evaluator.

    Measured: Day 0, day 7, day 14, day 21, day 28 and day 42

  3. Change in Patient Reported Outcome (PRO)

    Pre-dose and at EOT patients will be asked how they would rate their acne that day using the subjective Patient Global Assessment (clear, almost clear, mild, moderate, severe, very severe)

    Measured: Day 0 and day 28

  4. Pharmacodynamic endpoints 1 - Change in Standardized facial photography by Canfield Visia and via selfie app

    A standardized set of 3 facial photos (front, left, right) will be taken every study visit by Canfield Visia CR. Furthermore, patients will take daily selfies with a validated mobile app.

    Measured: Day 0, day 7, day 14, day 21, day 28 and day 42

  5. Pharmacodynamic endpoints 2 - Change in Sebum measurements by Sebumeter®

    Sebum excretion will be measured every study visit by Sebumeter®. The measurement will be repeated for 3 times and the average will be used for the analysis.

    Measured: Day 0, day 7, day 14, day 21, day 28 and day 42

  6. Pharmacodynamic endpoints 3 - Change in Perfusion by Laser Speckle Contrast Imaging (LSCI)

    Cutaneous microcirculation will be assessed using the laser speckle imager (LSCI; PeriCam PSI System, Perimed Jäfälla, Sweden). Measurements have to be performed in a temperature controlled room with a temperature around 22°C. The subject has to get accommodated to the room temperature for a minimum of 15 minutes prior to testing. After this, the speckle assessments can commence. Briefly, the subject will be resting for at least ten minutes before any measurements take place. A suitable area of the face will be identified. This area will be illuminated' by the laser and the response signal will be captured.

    If no suitable area can be identified, the measurement will not be performed and data will be entered as missing.

    Measured: Day 0, day 7, day 14, day 21, day 28 and day 42

  7. Pharmacodynamic endpoints 4 - Change in Morphology by Optical Coherence Tomography (OCT)

    Skin morphology will be assessed by optical coherence tomography at every study visit. Optical coherence tomography uses reflected light returning from skin tissue to create an image of the skin and 2 mm below the skin. The visualization can be done because different skin structures reflect light in a different way and can therefore be distinguished. Optical coherence tomography is similar to ultrasound however instead of sound it uses light refraction to visualize tissue.

    Measured: Day 0, day 7, day 14, day 21, day 28 and day 42

  8. Pharmacodynamic endpoints 5 - Change in Local skin biopsy biomarkers

    Two-millimetre punch biopsies are taken at day 0 and day 28 from a papule or pustule. Moreover, at day 0 a biopsy will be taken from nonlesional non-facial skin (upper back) as healthy control. The biopsies will be placed in RNAlater medium directly after harvest of the biopsy and stored at 4°C. Biomarker sequencing will be performed by RNA extraction and quantitative PCR will be performed for a subset of immunomodulatory biomarkers (including but not limited to IL-1b, IL-1a, TNF-a IL-6, IL-12, IL-8, IL-10, IL-17, IFN-g).

    Measured: Day 0 and day 28

  9. Pharmacodynamic endpoints 6 - Change in Local skin surface biomarkers by TAP

    Skin biomarkers will be measured pre-dose and after 7, 14, 21, 28, and 42 days by TAP (FibroTx, Estonia). TAP consists of a multiplex capture-antibody micro-array that is supported by a dermal adhesive bandage for fixture to skin. When TAP is applied to skin and left on for 20 minutes, the antibodies printed on the micro-array capture biomarkers from skin through immune recognition.

    Biomarkers (IL-1a, IL-1b, TNF-a, IL-8, IL-6, IL-17) captured from skin by TAP are qualitatively and quantitatively analyzed by spot-ELISA by a specific TAP analyzer.

    Measured: Day 0, day 7, day 14, day 21, day 28 and day 42

  10. Pharmacodynamic endpoints 7 - Change in skin microbiota

    The skin swab will be placed in a 2 ml lysis tube containing DNA/RNA shield to stabilize and preserve the DNA. The DNA extraction will be performed using adapted DNA extraction method based on the Zymo Research fecal DNA extraction methodology. The microbiome will be analyzed according to 16S rRNA gene sampling

    Measured: Day 0, day 7, day 14, day 21, day 28 and day 42

  11. Pharmacodynamic endpoints 8 - Change over time in p. acnes cultures

    Swabs of predefined lesional (papule of pustule) and non-lesional skin will be taken with a sterile cotton swab. Colony numbers (colony forming units - CFU) and minimal inhibitory concentrations (MIC) will be reported. In addition, swabs of other lesions (i.e. nodules or scars) may be taken if applicable.

    Moreover, in order to study P. acnes in the pilosebaceous unit a comedo extraction will be performed and the sebum will be cultured for P. acnes. Comedo extraction will be performed if applicable (i.e. if the patient has comedones).

    Measured: Day 0, day 7, day 14, day 21, day 28 and day 42

  12. Pharmacodynamic endpoints 9 - Change over time in faecal microbiota

    Faecal samples will be collected at home. Subjects will use a 'faeces catcher' in their toilet and afterwards use a cotton swab to transfer a scoop of faeces to a 2 ml lysis tube (REF ZY-R1103, Zymo Research) containing DNA/RNA shield to stabilize and preserve the DNA.

    Measured: before day 0 and after day 28

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Mar 2019
  2. Study start20 Mar 2018
  3. Primary completionJun 2019 (estimated)
  4. Study completionDec 2019 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
A randomized, open-label, placebo-controlled, evaluator-blinded study.
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03883269
Sponsor's protocol ID
CHDR1732
Status last verified
Mar 2019
First submitted
15 Feb 2018
Last updated
20 Mar 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Erythromycin 4% topical gel formulation, Clindamycin 1% topical lotion formulation and 70% topical ethanol solution in people with Acne Vulgaris, run by Centre for Human Drug Research, Netherlands at 1 site in Netherlands.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 20 Mar 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Netherlands. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Robert Rissmann, PharmD, PhD (+31 71 5246 400, clintrials@chdr.nl), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Efficacy endpoint 1 - Change in lesion count (time frame: Day 0, day 7, day 14, day 21, day 28 and day 42). The study lists 12 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Mar 2019.

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