A Phase 1 interventional study of Fludarabine Phosphate for Injection in Multiple Sclerosis, sponsored by St. Petersburg State Pavlov Medical University. Recruiting at 1 site in Russia. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2024-05-07.
Sponsored by St. Petersburg State Pavlov Medical University · Phase 1, Interventional, and Treatment
One of the possible options for the treatment of MS at present is a high-dose immunosuppressive therapy followed by autologous hematopoietic stem cell transplantation (HIST-AHSCT), which is a highly effective treatment for patients with relapsing-remitting MS.
This method of MS treatment was introduced in 1997. Significant complications and mortality associated with HIST-ATHSC is an obstacle to broad use of this method. The risk is even greater in patients with advanced disease, long duration of previous treatment and aggressive forms of MS.
Despite toxicity certain progressive cases of MS are still an indication for HIST-autoHSCT.
Most commonly used conditioning regimens for multiple sclerosis include high-dose cyclophosphamide. One of the options to reduce cyclophosphamide-related toxicity and dose is addition of fludarabine. Fludarabine is a cytostatic drug, an antimetabolite from the group of purine antagonists. It has a pronounced immunosuppressive activity and no overlapping toxicity with cyclophosphamide. The study will evaluate the safety and efficacy of this combination.
3,524 studies on the registry are indexed under Multiple Sclerosis; 668 are open to participants now.
This study's planned enrollment of 200 is above the median of 50 across 2,386 interventional studies indexed under Multiple Sclerosis.
Browse Multiple Sclerosis studies →St. Petersburg State Pavlov Medical University is the lead sponsor of 51 studies on the registry; 16 are open to participants now.
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Exclusion Criteria:
AHSCT with reduced intensity condition regimen (RIC): cyclophosphamide intravenously at a dose of 50 mg/kg/day from -5 to day -2 inclusive; fludarabine intravenously at a dose of 30 mg/m2 from -5 to day -2 inclusive. Immunotherapy: ATG - ATGAM intravenously 20 mg/kg from -3 to -1 or Thymoglobulin 2.5 mg/kg from -3 to -1 day. Also, within the framework of immunotherapy, instead of ATG, it is allowed to use anti-B-cell therapy - Rituximab 500 mg / m2 per day +12 AHSCT.
Drug: Fludarabine Phosphate for Injection
Intravenous injection of fludarabine phosphate at a dose of 30 mg/m2 from day -5 to day -2 of immunoablative conditioning regimen.
Also known as: Fludarabine
Multiple sclerosis progression free survival
To evaluate safety and effectiveness of immunoablative conditioning regimen FluCy200 in patients with refractory multiple sclerosis after AHSCT.
Time frame: 365 days
Cumulative incidence of mortality
Death from any cause after AHSCT
Time frame: 365 days
To evaluate adverse effects after FluCy200 conditioning regimen
Toxicity based NCI CTCAE ver.5.0, including analysis of severe bacterial, fungal and viral infections incidence
Time frame: 365 days
Quality of life status 1
Multiple sclerosis-specific questionnaire - HADS (Hospital Anxiety and Depression Scale) before and after AHSCT: 0-7 points - normal; 8-10 - subclinically expressed anxiety/depression; 11-21 - clinically expressed anxiety/depression.
Time frame: 365 days
Quality of life status 2
Multiple sclerosis-specific questionnaire - The Short Form-36 (SF-36) before and after AHSCT: The SF-36 consists of 36 questions grouped into eight scales: physical functioning, role-physical functioning, bodily pain, general health, vitality, social functioning, role-emotional, and mental health. The indicators of each scale are compiled in such a way that the higher the value of the indicator (from 0 to 100), the better the score on the chosen scale. Of these, two parameters are formed: the psychological and physical components of health.
Time frame: 365 days
Quality of life status 3
Multiple sclerosis-specific questionnaire - Multiple Sclerosis Impact Scale (MSIS-29) before and after AHSCT: The MSIS-29 scale consists of 29 items and includes indicators observed over the previous two weeks, including 20 of which characterize physical condition, coordination and mobility, and 9 questions reflect the patient's mental state. Answers are ranked on a 5-point Likert scale from 1 to 5 (1 = none; 2 = little; 3 = moderate; 4 = significant; 5 = very strong) in one direction. The total score is the sum of all 29 responses and can range from 29 to 145. A higher score means a higher degree of disability. The result is assessed on a scale from 0 to 100, where a higher result means worse health.
Time frame: 365 days
Quality of life status 4
Multiple sclerosis-specific questionnaire - Functional Assessment of Multiple Sclerosis (FAMS) before and after AHSCT: FAMS Total score (range=0-176) is derived by adding: 1) Mobility (r=0-28). 2) Symptoms (r=0-28). 3) Emotional well- being (r=0-28). 4) General contentment (r=0-28). 5) Thinking and fatigue (r=0-36). 6) Family/social wellbeing (r=0-28). Higher scores indicate better quality of life.
Time frame: 365 days
Neurological status 1
Multiple sclerosis-specific questionnaire - EDSS (Expanded Disability Status Scale) before and after AHSCT: 0 points - Normal neurologic exam; 1.0-1.5 - No disability, minimal signs in one or two Functional Systems (FS); 2.0-2.5 - Minimal disability in one or two FS; 3.0-3,5 - Moderate disability in one FS, fully ambulatory; 4.0-4.5 - Fully ambulatory without aid. Able to walk without aid or rest some 500 or 300 meters; 5.0-5.5 - Ambulatory without aid or rest for about 200 or 100 meters; 6.0 - Intermittent assistance required to walk about 100 meters; 6.5 - Constant bilateral assistance required to walk about 20 meters; 7.0-7.5 - Unable to walk beyond about 5 meters or more than a few steps; 8.0 - Essentially restricted to bed, but may be out of bed itself; 8.5 - Essentially restricted to bed; 9.0 - Helpless bed patient; can communicate and eat; 9.5 - Totally helpless bed patient; unable to communicate effectively or eat/swallow; 10 - Death due to MS
Time frame: 365 days
Immune reconstitution
Absolute number of CD3+, CD4+, CD8+, CD45+, CD19+ T-lymphocytes in cells/ml
Time frame: 365 days
Magnetic resonance imaging response
Measured by Magnetic Resonance Disease Severity Scale (MRDSS)
Time frame: 365 days
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Studies of the drug tested here: Fludarabine phosphate
St. Petersburg State Pavlov Medical University