Clinical trials

Acne vulgaris is associated with changes in the facial skin microbiome, but longitudinal microbiome changes during isotretinoin therapy remain incompletely understood. This prospective observational cohort study aims to characterize the facial skin microbiome in patients with moderate-to-severe acne vulgaris before and during isotretinoin treatment and to compare microbiome profiles with healthy individuals. Participants with moderate-to-severe acne vulgaris receiving standard-of-care oral isotretinoin will be followed prospectively. Facial skin swab samples will be collected before treatment and at scheduled follow-up visits during therapy. Healthy volunteers without acne will provide a single facial skin swab for comparison. Bacterial communities will be analyzed using 16S rRNA gene sequencing, and clinical severity will be assessed using validated acne severity scores and lesion counts. The study will evaluate changes in microbial diversity, bacterial composition, and the relative abundance of acne-associated microorganisms during isotretinoin treatment. Associations between microbiome changes and clinical improvement will also be explored. Results are expected to improve understanding of the role of the skin microbiome in acne and provide evidence for future microbiome-based therapeutic strategies.

Atopic dermatitis is a chronic inflammatory skin disease that is commonly associated with itching, sleep disturbance, and impaired quality of life. Melatonin may have beneficial effects on sleep, inflammation, and oxidative stress. This randomized controlled trial will evaluate the effectiveness of oral melatonin as an adjunct to standard treatment in adults with atopic dermatitis. A total of 130 participants will be randomly assigned in a 1:1 ratio to receive either standard treatment according to the Vietnamese Ministry of Health 2023 guideline or standard treatment plus oral melatonin 6 mg once daily for 4 weeks. Atopic dermatitis severity will be assessed using the SCORing Atopic Dermatitis (SCORAD) index, and sleep quality will be evaluated using the Pittsburgh Sleep Quality Index (PSQI). Serum superoxide dismutase and melatonin concentrations will also be measured to assess changes related to oxidative stress and melatonin status. Participants will be evaluated at baseline and during the 4-week treatment period.

This study aimed to evaluate the effectiveness of saccharomyces-based treatment in children with acute diarrhea aged 6 months to 5 years compared to children treated with standard methods.

This study aims to compare the effects of diode laser and light-emitting diode (LED) photobiomodulation on maxillary canine retraction during fixed orthodontic treatment. Participants requiring bilateral maxillary first premolar extraction will receive both interventions using a split-mouth design. One maxillary canine will receive diode laser photobiomodulation, while the contralateral maxillary canine will receive LED photobiomodulation. Maxillary canine movement will be evaluated at 4, 8, 12, and 16 weeks during retraction to compare the amount and rate of tooth movement between the two interventions. Pain associated with orthodontic tooth movement will also be assessed. Pulp oxygen saturation (SpO₂) of the maxillary canines will be measured to evaluate changes in pulpal oxygenation during orthodontic canine retraction. SpO₂ will be assessed at baseline and at predefined follow-up time points, including 20 minutes, 24 hours, 7 days, and 4 weeks. Changes in SpO₂ will be compared between the diode laser and LED sides. Cone-beam computed tomography (CBCT) will be used to evaluate changes in maxillary canine root length and alveolar bone dimensions before and after canine retraction. The study is expected to determine whether diode laser and LED photobiomodulation differ in their effects on orthodontic canine retraction, pulpal oxygenation, pain, and associated dental and alveolar bone changes.

This study aims to evaluate the effectiveness of adjunctive oral Bifidobacterium animalis subsp. lactis in term neonates with indirect hyperbilirubinemia receiving phototherapy. The study will compare the effects of adjunctive probiotics plus standard phototherapy with standard phototherapy alone on the duration of phototherapy, length of hospital stay, serum total bilirubin reduction, phototherapy-related adverse events, and hospital readmission after discharge.

Intervention Model: Parallel Assignment Model Description: Cluster-randomized by preceptor (30 clusters; 15 OMP/15 control). Outcomes at student level; 15 students per cluster. Adequate OMP exposure is defined a priori as ≥2 structured OMP feedback encounters (≥5 minutes each) delivered across ≥2 separate weeks of the rotation. Masking: Outcomes Assessor

The goal of this clinical trial is to learn if including bismuth in the treatment helps heal stomach and duodenal ulcers caused by Helicobacter pylori (H. pylori) in children. The main questions it aims to answer are: * Does a treatment plan with bismuth work better than a plan without bismuth to clear the infection? * Is the bismuth plan more cost-effective while still safe and effective? Researchers will compare two treatment groups to see which works better. Participants will: * Take one of the two assigned treatment plans (with or without bismuth) for the standard treatment duration * Visit the clinic for checkups and tests to confirm infection clearance and monitor side effects * Keep a diary of symptoms, medication use, and any side effects

Asthma control in pediatric patients remains a critical issue for healthcare providers. Telemedicine has emerged as an effective solution for overcoming distance barriers in healthcare delivery. This study aims to utilize telemedicine-based education for caregivers to improve asthma control in children with uncontrolled asthma. By providing remote guidance and support, the study seeks to enhance caregivers' knowledge and management practices, ultimately leading to better asthma outcomes for pediatric patients.