CClinicalTrials.gg
CompletedNCT05935787Updated Apr 14, 2026

Cytoflavin in the Complex Rehabilitation of Stroke Patients

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

Phase
Phase 3
Study type
Interventional
Enrollment
240
Allocation
Randomized
Ages
40 Years to 80 Years
Sex
All
01

Study summary

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.

02

Conditions studied

  • Stroke

Browse trials for

Keywords

  • stroke rehabilitation
03

Who can participate

Ages eligible
40 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Signed Patient informed consent form
  2. Men and women aged 40 to 80, inclusive.
  3. Ischemic stroke in the carotid area, or hemorrhagic stroke in the cerebral hemispheres, occurred in the previous 14-90 days before screening.
  4. Acute neuroimaging data (CT and/or MRI) do not contradict the clinical and topical diagnosis of stroke.
  5. The presence of a measurable neurological deficit in the motor or sensory area.
  6. Availability of rehabilitation potential, which is assessed by the specialists of the multidisciplinary team
  7. Modified Rankin score 3-4.
  8. The possibility to visit outpatient rehabilitation at the research center.
  9. Ability to understand and comply with protocol requirements.
  10. For women: consent to use reliable methods of contraception or absent reproductive potential.
  11. For men: consent to the use of adequate methods of contraception, or complete abstinence from sexual activity for the period of the study, or absent reproductive potential.

Exclusion criteria

Exclusion Criteria:

  1. Known hypersensitivity to any component of the study drug
  2. Severe visual and hearing impairments that prevent the implementation of study procedures.
  3. Severe spasticity (scored 3-4 by Ashworth scale).
  4. Impaired swallowing, which does not allow taking drugs orally.
  5. Communication deficit that does not allow the patient to fulfill the conditions of the study protocol (including total aphasia).
  6. The presence of contraindications to complex rehabilitation in a hospital (lack of rehabilitation potential, somatic diseases that prevent a complex of rehabilitation measures).
  7. Aneurysmal subarachnoid hemorrhage.
  8. Previous (before the actual ictus) stroke with residual neurological deficit.
  9. Disability is primarily not attributed to the last stroke
  10. Severe renal failure
  11. Severe liver failure
  12. End stage of other chronic incurable diseases.
  13. Decompensated diabetes mellitus.
  14. History of cancer, mental illness, HIV infection, syphilis, tuberculosis, alcohol, drug or drug addiction.
  15. Established diagnosis of a mental or neurodegenerative disease
  16. Constant use of psychotropic drugs (neuroleptics, tranquilizers, antidepressants) or nootropic drugs in the previous 3 months before the patient was included in the study, except for stroke treatment in acute hospital.
  17. Alcohol or drug addiction

19. Pregnancy, lactation.

04

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
240 participants (actual)

Study arms

  • Experimental
    Cytoflavin

    Drug: Cytoflavin (Inosine + Nicotinamide + Riboflavin + Succinic Acid)

  • Placebo comparator
    Placebo

    Drug: Placebo

Interventions

  • DrugCytoflavin (Inosine + Nicotinamide + Riboflavin + Succinic Acid)

    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

  • DrugPlacebo

    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

05

What researchers measure

Primary outcomes

  1. 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

06

Study locations

3 sites
  • City General Hospital №2
    Saint Petersburg, Russia
  • City Hospital №40 of the Kurortny District
    Saint Petersburg, Russia
  • Saint-Petersburg I.I.Dzanelidze Research Institute of Emergency Medicine
    Saint Petersburg, Russia
07

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT05935787
Lead sponsor
POLYSAN Scientific & Technological Pharmaceutical Company
Responsible party
Sponsor
First posted
Jul 7, 2023
Start date
Jun 30, 2023
Primary completion
Jun 26, 2024
Completion
Dec 7, 2024
Last update
Apr 14, 2026

Study contacts

Alexey Shmonin, Prof
study director · First St. Petersburg State Medical University named after I.P. Pavlov

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions 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.

Start the discussion