Clinical Trial to Evaluate the Effect of a Probiotic in Acne
- Conditions
- AcneAcne Vulgaris
- Interventions
- Dietary Supplement: PlaceboDietary Supplement: Probiotic Bths-08
- Registration Number
- NCT04570319
- Lead Sponsor
- Bionou Research, S.L.
- Brief Summary
A 12-week randomized, multicenter and double-blind, placebo-controlled study to evaluate the effect of a probiotic in the clinical and subjective evolution of acne in adolescent and adult patients.
- Detailed Description
Acne is a chronic inflammatory disease of the skin that affects 85% of younger adults in westernized populations. Acne pathophysiology is multifactorial and may include alterations of the pilosebaceous unit function, skin microbiota, hormone imbalance and gut microbiota. Acne pathology shares features with inflammatory chronic conditions such as metabolic syndrome, obesity or diabetes.
Probiotics are live microorganisms that when administered in adequate amounts confer a health benefit for the host. Probiotics are proposed for the treatment of inflammatory chronic conditions, including dermatological diseases as atopic dermatitis and psoriasis. However, the clinical evidence is limited. Therefore, usefulness of probiotics for acne vulgaris treatment must be ascertained in humans.
This randomized study aims to evaluate the effect of a probiotic on the treatment and clinical and subjective evolution of acne vulgaris.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 81
- Signature of informed consent by the patient (and their legal guardian in case of being under age).
- Age between 12 and 30 years-old.
- AGSS (Acne Global Severity Scale) Score: 2 or higher
- Patients who agree to follow the study's dietary recommendations.
- Contraindication of any of the components of the product under study.
- Topical or systemic use of antifungals and antibiotics in the previous 2 weeks.
- Consumption of probiotics in the previous 2 months.
- Use of systemic retinoids in the previous 6 months.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Placebo Placebo a capsule containing placebo comparator Probiotic Bths-08 Probiotic Bths-08 a capsule containing the probiotic blend (nutritional complement)
- Primary Outcome Measures
Name Time Method Change from baseline in the AGSS (Acne Global Severity Scale) index at 12 weeks 0 and 12-week Score between 0 and 5:
0: Clean = Normal and clear skin without evidence of acne
1. Almost clean = There are some non-inflammatory lesions, with uncommon and non-inflamed papules
2. Mild = few inflammatory lesions (no nodule-cystic lesions)
3. Moderate = Noninflammatory lesions predominate, but multiple inflammatory lesions appear (nodule-cystic lesions may be present)
4. Severe = Inflammatory lesions predominate (nodule-cystic lesions may be present)
5. Very severe = Highly inflammatory lesions predominate (several nodule-cystic lesions)
Patients who improve in at least one category of the scale are considered as responders to treatment.
- Secondary Outcome Measures
Name Time Method Change from baseline in the number of acne lesions at week 12 0 and 12-week Number of non-inflammatory, inflammatory and total acne lesions.
Change from baseline in the GAGS (Global Acne Grading System) index at week 12 0 and 12-week TOTAL SCORE = \[Nose S x 1 + Chin S x 1 + Front S x 2 + Right cheek S x 2 + Left cheek S x 2 + Torso S x 3\]
\[Severity (S): 0 = Absence; 1 = Comedones; 2 = Papules; 3 = Pustules; 4 = Nodules\]
SCORE: 0 = Clean; 1-19 = Mild; 20-30 = Moderate; 31-38 = Severe; \> 38 = Very severe
Patients who have a reduction in the score of at least 30% are considered as responders to treatment.Change in the percentage of patients with presence of Cutibacterium acnes and Staphylococcus aureus in skin microbiome 0 and 12-week Skin sample and genomic and microbiological analysis.
Use of antibiotic acne treatment 12-week Days of antibiotic use for the acne treatment, registered by the patient.
Change from the baseline in the patient subjective evaluation index at week 12 0 and 12-week Min score (Best) = 6 Max score (Worst) = 30
Treatment safety assessed by number of adverse events 12-week Number of adverse events that occur during the treatment period.
Adherence to treatment 12-week Compliance rate (in percentage) calculated as the number of leftover capsules divided by the total number of days between visits.
Trial Locations
- Locations (4)
Hospital Universitari Sagrat Cor
🇪🇸Barcelona, Spain
Clínica Eguren Dermatología y Estética
🇪🇸Madrid, Spain
Universidad Católica San Antonio de Murcia
🇪🇸Guadalupe, Murcia, Spain
Centro Dermatológico Estético de Alicante
🇪🇸Alicante, Spain