A Phase 3 interventional study of Cytoflavin (Inosine + Nicotinamide + Riboflavin + Succinic Acid) and Placebo in Stroke, sponsored by POLYSAN Scientific & Technological Pharmaceutical Company. Completed at 3 sites in Russia. Open to participants aged 40 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-04-14.
Sponsored by POLYSAN Scientific & Technological Pharmaceutical Company · Phase 3, Interventional, and Treatment
It is known that the acute period of stroke occurs is accompanied by oxidative stress, when intense generation of reactive oxygen species (ROS) have a toxic effect, which causes oxidative degradation of proteins, lipids, nucleic acids. Antioxidants may have a positive effect on the processes of reparation, remodeling and neuroplasticity, thus improving the effectiveness of post-stroke rehabilitation. The adjunctive use of drug therapy that improves neuroplasticity may promote accelerated motor learning, which underlies the effects of exercise therapy and physical therapy, speech therapy, and sessions with a psychologist or occupational therapist. CYTOFLAVIN® is a combination of succinic acid, riboflavin, nicotinamide and inosine (riboxin) which has antihypoxic and antioxidant effects. The study hypothetizes that this neurometabolic drug will facilitate learning in stroke survivors and help to acquire new cognitive or motor skills necessary for daily living. The study will be conducted in two parallel groups of stroke survivors: the experimental group will be treated with Cytoflavin along with ohysical rehabilitation, the control group will receive standard rehabilitation course.
8,255 studies on the registry are indexed under Stroke; 2,056 are open to participants now.
This study's enrollment of 240 is above the median of 49 across 6,024 interventional studies indexed under Stroke.
Browse Stroke studies →POLYSAN Scientific & Technological Pharmaceutical Company is the lead sponsor of 23 studies on the registry; 4 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
19. Pregnancy, lactation.
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Able to have children. For women this usually means from the first period until menopause, unless permanently unable to through surgery; for men, unless permanently sterile. Read who the line is about — participants, women, men, or their partners.
Criteria about it usually ask for contraception during the study and for a time after it.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Reproductive potential
Able to have children. For women this usually means from the first period until menopause, unless permanently unable to through surgery; for men, unless permanently sterile. Read who the line is about — participants, women, men, or their partners.
Criteria about it usually ask for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Drug: Cytoflavin (Inosine + Nicotinamide + Riboflavin + Succinic Acid)
Drug: Placebo
Drug page: Cytoflavin
Cytoflavin (Inosine + Nicotinamide + Riboflavin + Succinic Acid), 20 ml (two ampoules of 10 ml each) once a day intravenously in a dilution of 200 ml of 0.9% sodium chloride solution at a rate 3-4 ml/min, for 15 days + Cytoflavin ((Inosine + Nicotinamide + Riboflavin + Succinic Acid), 2 tablets 2 times a day, for 25 days
Placebo, 20 ml (two ampoules of 10 ml each) once a day intravenously in a dilution of 200 ml of 0.9% sodium chloride solution at a rate 3-4 ml / min, for 15 days + Placebo, 2 tablets 2 times a day, for 25 days
Change of performance
Change at the performance subscale (range 0-10, higher=better) of Canadian Occupational Performance Measure (COPM) score after completion of therapy compared to baseline
Time frame: 40 days
Plan to share: No
No publications or documents are linked to this record.
Ran from Jun 2023 to primary completion in Jun 2024, 11 months.
Of 37 industry-sponsored phase 3 interventional studies under Stroke, half reached primary completion within 40 months of starting (the median), counting those still running; a quarter within 26 and three quarters within 58. This study's 11 months is below that.
Counting every sponsor, half of 129 studies reached it within 44 months; a quarter within 27 and three quarters within 68.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Studies of the drug tested here: Cytoflavin
POLYSAN Scientific & Technological Pharmaceutical Company →