Related Experiment Video
Updated: Apr 16, 2026

Positron Emission Tomography Imaging for In Vivo Measuring of Myelin Content in the Lysolecithin Rat Model of Multiple Sclerosis
Published on: February 28, 2021
High doses of biotin in chronic progressive multiple sclerosis: a pilot study
Frédéric Sedel1, Caroline Papeix2, Agnès Bellanger3
1Neurology Department, AP-HP, Salpêtrière Hospital, Paris, France; Neuro-Metabolic Unit and Reference Center for Lysosomal Diseases, GRC13UPMC, Pierre & Marie Curie University-Paris 6, AP-HP, Salpêtrière Hospital, Paris, France.
High-dose biotin shows promise for progressive multiple sclerosis (MS) treatment. This pilot study observed improvements in visual acuity, spinal cord function, and neurological markers in patients with progressive MS, suggesting biotin
Area of Science:
- Neurology
- Biochemistry
- Clinical Research
Background:
- No current drug effectively treats progressive multiple sclerosis (MS).
- Biotin, a vitamin, is crucial for energy metabolism and myelin synthesis.
- Biotin activates acetyl-CoA carboxylase, an enzyme potentially key to myelin production.
Purpose of the Study:
- To evaluate the clinical effectiveness and safety of high-dose biotin.
- To assess biotin's impact on patients with progressive multiple sclerosis (MS).
Main Methods:
- An uncontrolled, non-blinded pilot study.
- 23 progressive MS patients received 100-300mg/day of biotin for 2-36 months.
- Clinical outcomes were assessed using quantitative and qualitative measures.
Main Results:
- Significant visual acuity improvement in 4 patients with optic nerve injury.
- 89% of patients with spinal cord involvement showed improvement.
- Neurological improvements, including visual evoked potentials and MRI markers, were observed.
Conclusions:
- Preliminary findings suggest high-dose biotin may impact progressive MS progression and disability.
- Further investigation via two ongoing double-blind placebo-controlled trials is warranted.
Related Concept Videos
Bioavailability Study Design: Single Versus Multiple Dose Studies
Bioavailability Study Design: Healthy Subjects Versus Patients
Drug Accumulation During Multiple Dosing: Repetitive IV Injections
Bioequivalence studies: Biowaivers
Drug Accumulation During Multiple Dosing: Intermittent IV Infusions
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...

