A Phase 4 interventional study of Vespireit and Arlevert in Vertigo and Autonomic Dysfunction, sponsored by Valenta Pharm JSC. Recruiting at 4 sites in Russian Federation. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2025-06-15.
Sponsored by Valenta Pharm JSC · Phase 4, Interventional, and Treatment
This study aims to evaluate the efficacy and safety of Vespireit, prolonged-release tablets, 15 mg (Valenta Pharm JSC, Russia) in comparison with Arlevert, tablets, 40 mg + 20 mg (Menarini International Operations Luxembourg S.A., Luxembourg) in patients with autonomic dysfunction syndrome accompanied by functional vertigo.
187 studies on the registry are indexed under Vertigo; 27 are open to participants now.
This study's planned enrollment of 160 is above the median of 73 across 138 interventional studies indexed under Vertigo.
Browse Vertigo studies →Valenta Pharm JSC is the lead sponsor of 40 studies on the registry; 18 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.
The authorized contraceptive methods in this study are: intrauterine device, barrier method, or dual barrier method (condom or occlusive cap (diaphragm or cervical/vaginal cap) plus spermicide)). Hormonal contraception was not permitted due to insufficient data on drug interactions of buspirone.
women (≥2 years of amenorrhea) or women who are surgically sterile (hysterectomy, bilateral ovariectomy, tubal ligation)) and men with documented infertility or vasectomy will also be eligible for the study.
Non-inclusion Criteria:
Exclusion criteria:
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.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
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.
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
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.
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.
Stroke symptoms need emergency care at once, even if they go away.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
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.
CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.
Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.
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.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and 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.
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.
Postmenopausal
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
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.
Excipients
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
NYHA class (heart failure)
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
TIA (transient ischaemic attack)
A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.
Stroke symptoms need emergency care at once, even if they go away.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECG (electrocardiogram)
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ALT and AST (liver enzymes)
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Bilirubin
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Creatinine clearance (CrCl)
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis B tests
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
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.
CYP3A (CYP3A4) inhibitors and inducers
CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.
Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Dosage regimen: 1 tablet once a day at approximately the same time in the morning under fed conditions for 28 days. The drug is taken orally, whole, without breaking and not chewing.
Drug: Vespireit
Dosage regimen: 1 tablet 3 times a day at approximately the same time under fed conditions for 28 days. The drug is taken orally, whole, without breaking and not chewing.
Drug: Arlevert
Buspirone
Dimenhydrinate + Cinnarizine
Change in Mean vertigo score (MVS) at Visit 1-3 of the Initial Treatment Phase relative to baseline at Visit 1-1
Difference in MVS assessed on Visit 1-3 and 1-1 (12-item scale with score from 0 to 4 for each item; higher scores mean a worse outcome)
Time frame: Day 1 - Day 28±1
Change in mean MVS score at Visit 1-2 of the Initial Treatment Phase relative to baseline at Visit 1-1.
Assessment performed using MVS (12-item scale with score from 0 to 4 for each item; higher scores mean a worse outcome)
Time frame: Day 1 - Day 28±1
Change in mean MVS score at Visits 2-2, 2-3, and 2-4 of the Retreatment Period compared with Visit 2-1.
Assessment performed using MVS (12-item scale with score from 0 to 4 for each item; higher scores mean a worse outcome)
Time frame: Day 1 - Day 42 ±1 (retreatment period)
Change in mean MVS score at the visit of completion of study participation compared with the score at Visit 1-1 in patients who completed the study according to the protocol (PP(response)).
Assessment performed using MVS (12-item scale with score from 0 to 4 for each item; higher scores mean a worse outcome)
Time frame: Day 1 - Day 28±1
Percentage of patients with a ≥50% reduction in total DHI score on Visit 1-3 of the Initial Treatment Phase relative to Visit 1-1.
Assessment performed using DHI (25-item self-report questionnaire with total score from 0 to 100; higher scores mean a worse outcome)
Time frame: Day 1 - Day 28±1
Percentage of patients with a ≥50% reduction in total DHI score on Visits 2-3 and 2-4 of the Retreatment Period relative to Visit 2-1.
Assessment performed using DHI (25-item self-report questionnaire with total score from 0 to 100; higher scores mean a worse outcome)
Time frame: Day 1 - Day 42 ±1 (retreatment period)
Percentage of patients with a ≥25% reduction in total DHI score on Visit 1-3 of the Initial Treatment Phase relative to Visit 1-1.
Assessment performed using DHI (25-item self-report questionnaire with total score from 0 to 100; higher scores mean a worse outcome)
Time frame: Day 1 - Day 28±1
Percentage of patients with a ≥25% reduction in total DHI score on Visits 2-3 and 2-4 of the Retreatment Period relative to Visit 2-1.
Assessment performed using DHI (25-item self-report questionnaire with total score from 0 to 100; higher scores mean a worse outcome)
Time frame: Day 1 - Day 42 ±1 (retreatment period)
Change in total score on the DHI at Visit 1-3 of the Initial Treatment Phase compared with Visit 1-1.
Assessment performed using DHI (25-item self-report questionnaire with total score from 0 to 100; higher scores mean a worse outcome)
Time frame: Day 1 - Day 28±1
Change in total score on the DHI at Visits 2-3 and 2-4 of the Retreatment Period compared with Visit 2-1.
Assessment performed using DHI (25-item self-report questionnaire with total score from 0 to 100; higher scores mean a worse outcome)
Time frame: Day 1 - Day 42 ±1 (retreatment period)
Change in total score on the DHI at the end-of-study visit compared to the score at Visit 1-1 in patients who completed the study according to the protocol (PP(response)).
Assessment performed using DHI (25-item self-report questionnaire with total score from 0 to 100; higher scores mean a worse outcome)
Time frame: Day 1 - Day 28±1
Change in digital rating scalescore from Visit 1-1 to Visits 1-2 and 1-3 in the Primary Treatment Period.
Assessment performed using digital rating scale (from minimum of 0 to maximum of 10 points; higher scores mean a worse outcome)
Time frame: Day 1 - Day 28±1
Change in digital rating scale score from Visit 2-1 to Visits 2-2, 2-3, and 2-4 in the Retreatment Period.
Assessment performed using digital rating scale (from minimum of 0 to maximum of 10 points; higher scores mean a worse outcome)
Time frame: Day 1 - Day 42 ±1 (retreatment period)
Assessment of quality of life in patients with autonomic dysfunction syndrome accompanied by functional vertigo using the EQ-5D questionnaire at Visit 1-3 of the Initial Treatment Phase.
Assessment performed using EQ-5D questionnaire (5-item self-report questionnaire with total score from 0 to 100; higher scores mean a better outcome)
Time frame: Day 1 - Day 28±1
Assessment of quality of life in patients with autonomic dysfunction syndrome accompanied by functional vertigo using the EQ-5D questionnaire at Visits 2-3 and 2-4 of the Retreatment Period.
Assessment performed using EQ-5D questionnaire (5-item self-report questionnaire with total score from 0 to 100; higher scores mean a better outcome)
Time frame: Day 1 - Day 42 ±1 (retreatment period)
Change in total score on the Hamilton Anxiety Rating Scale HARS at Visit 1-3 of the Primary Treatment Period compared with Visit 1-1.
Assessment performed using HARS (21-item scale with total score from 0 to 56; higher scores mean a worse outcome)
Time frame: Day 1 - Day 28±1
Change in total score on the Hamilton Anxiety Rating Scale HARS at Visits 2-3 and 2-4 of the Retreatment Period compared with Visit 2-1.
Assessment performed using HARS (21-item scale with total score from 0 to 56; higher scores mean a worse outcome)
Time frame: Day 1 - Day 42 ±1 (retreatment period)
Change in VSS-SF total score at Visit 1-3 of the Initial Treatment Phase relative to baseline at Visit 1-1.
Assessment performed using VSS-SF score (15-item scale with score from 0 to 4 for each item; higher scores mean a worse outcome)
Time frame: Day 1 - Day 28±1
Change in VSS-SF total score at Visits 2- 3 and 2-4 of the Retreatment Period compared with Visit 2-1.
Assessment performed using VSS-SF score (15-item scale with score from 0 to 4 for each item; higher scores mean a worse outcome)
Time frame: Day 1 - Day 42 ±1 (retreatment period)
Change in VSS-SF total score at the end-of-study visit compared with the score at Visit 1-1 in patients who completed the study according to protocol (PP(response)).
Assessment performed using VSS-SF score (15-item scale with score from 0 to 4 for each item; higher scores mean a worse outcome)
Time frame: From Day 1 to the end of the study
Evaluation of therapy efficacy on the CGI-i scale by the patient at Visits 1-2 and 1-3 in the Initial Treatment Phase.
Assessment performed using CGI-i scale (scale from 0 to 7; higher scores mean a worse outcome)
Time frame: Day 1 - Day 28±1
Evaluation of therapy efficacy on the CGI-i scale by the physician at Visits 1-2 and 1-3 in the Primary Therapy Period.
Assessment performed using CGI-i scale (scale from 0 to 7; higher scores mean a worse outcome)
Time frame: Day 1 - Day 28±1
Evaluation of therapy efficacy on the CGI-i scale by the patient at Visits 2-2, 2-3, and 2-4 in the Retreatment Period.
Assessment performed using CGI-i scale (scale from 0 to 7; higher scores mean a worse outcome)
Time frame: Day 1 - Day 42 ±1 (retreatment period)
Evaluation of the effectiveness of therapy on the CGI-i scale by the physician at Visits 2-2, 2-3, 2-4 in the Re-Treatment Period.
Assessment performed using CGI-i scale (scale from 0 to 7; higher scores mean a worse outcome)
Time frame: Day 1 - Day 42 ±1 (retreatment period)
Proportion of patients with exacerbation (relapse) of the disease after treatment in the Primary Treatment Period during the entire follow-up period (until the visit of completion of participation in the study)
An exacerbation (relapse) is defined as a total DHI score ≥ 31 points
Time frame: From Day 1 to the end of the study
Duration of remission period after treatment in the Initial Treatment Phase. Remission means absence of episodes of exacerbations (relapses)
The duration of the remission period is the time from the day of completion of primary therapy to the day of the visit confirming an exacerbation (relapse) or to the day of completion of the study (if there is no exacerbation (relapse))
Time frame: From Day 1 to the end of the study
Clinically significant abnormalities on physical and/or neurologic examination
Number and percentage of patients with clinically significant abnormalities found during physical and/or neurologic examination
Time frame: Day 1 - Day 28±1 (primary treatment period), Day 1 - Day 42 ±1 (retreatment period)
Adverse events (AEs)
Frequency of AEs for all treatment periods stratified by severity and frequency
Time frame: Day 1 - Day 28±1 (primary treatment period), Day 1 - Day 42 ±1 (retreatment period)
Serious adverse events (SAEs)
Frequency of SAEs
Time frame: Day 1 - Day 28±1 (primary treatment period), Day 1 - Day 42 ±1 (retreatment period)
Adverse reactions
Frequency of AEs and SAEs associated with the use of investigational drugs
Time frame: Day 1 - Day 28±1 (primary treatment period), Day 1 - Day 42 ±1 (retreatment period)
Рatients with at least one AE
Proportion of patients with at least one AE registered
Time frame: Day 1 - Day 28±1 (primary treatment period), Day 1 - Day 42 ±1 (retreatment period)
Patients discontinued due to AE
Percentage of patients who discontinued treatment due to the occurrence of AE
Time frame: Day 1 - Day 28±1 (primary treatment period), Day 1 - Day 42 ±1 (retreatment period)
Plan to share: Undecided
No publications or documents are linked to this record.
Started Jan 2024 (actual). Primary completion is estimated for Dec 2026, 35 months after the start.
How these figures are worked out, and which studies are left out of them.
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