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Vascular DementiaPhase 2NCT01978730

The Clinical Trial of Chinese Herbal Medicine SaiLuoTong Capsule

A Phase 2 study testing high dose group of SaiLuoTong capsule and low dose group of SaiLuoTong in people with Vascular Dementia, run by Shineway Pharmaceutical Co.,Ltd at 16 sites in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

As a traditional Chinese medicine compound, SaiLuoTong capsule is proven to have beneficial effects on learning and memory ability in animal models of vascular dementia (VaD). The study hypothesis is that SaiLuoTong capsule will be effective in the treatment of patients with VaD and will be well tolerated. Read more about this study

Who is it for?
Ages 40 years and older
Conditions the study is for
Vascular Dementia
What is being tested?
high dose group of SaiLuoTong capsule and low dose group of SaiLuoTong
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
372 participants
Where
16 sitesChina
Study dates
Dec 2011to Jul 2014
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 40 years old or above, gender is not limited;
  • Education≥primary-school;
  • Dementia diagnosed according to Diagnostic and Statistical Manual of Mental Disorders-4th Edition (DSM-IV) criteria;
  • Probable VaD diagnosed by the National Institute of Neurological Disorders and Stroke-Association Internationale pour la Recherche et l'Enseignement en Neurosciences(NINDS-AIREN) criteria;
  • Modified Hachinski ischemic scale(MHIS) total score≥4;
  • Evidence of ischemic cerebrovascular disease on magnetic resonance imaging (MRI)and /or CT (corresponding with the imaging criteria of NINDS-AIREN)
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  • Mild-to-moderate dementia defined by MMSE score between 10 and 26, CDR score between 1 and 2, both inclusive
  • Modified Hachinski ischemic scale(MHIS) total score≥4;
  • Hamilton depression scale (HAMD) total score≤17;
  • The patients agree to participate in the study and able to understand informed consent as well as signing it. In cases where patients are unable to do so, carer's consent will be obtained as proxy;
  • There are carers accompanying patients at least 4 days a week and can accompany patients to participate in each visit.

Who cannot join

  • Dementia caused by other brain diseases except VaD (e.g. Alzheimer's disease, Lewy body dementia, frontotemporal dementia, Parkinson's disease, demyelinated disease of the central nervous system, tumour, hydrocephalus, head injury, central nervous system infection including syphilis, acquired immune deficiency syndrome, etc.);
  • The patient who can not complete examination because of severe brain or nerve function loss, such as convenient hand hemiplegia, all sorts of aphasia and audio-visual obstacles, etc;
  • The presence of abnormal laboratory parameters: Hemoglobin (Hb) and platelet (Plt)less than the lower limit; activated partial thromboplastin time (APTT) beyond the normal value more than 10 seconds, prothrombin time (PT) beyond the normal value more than 3 seconds; creatinine (Cr) more than 1.5 times the upper limit value; alanine aminotransferase (ALT), aspartate aminotransferase (AST), or alkaline phosphates (ALP), γ-glutamyl transferase (γ-GT) more than 2 times the upper limit of normal, total bilirubin (TBiL) more than 1.5 times the upper limit of normal;
  • Nutrition metabolic diseases and endocrine system lesions such as thyroid disease, parathyroid diseases,and deficiency of vitamins or other elements;
  • Severe circulatory, respiratory, urinary, digestive, hematopoietic system diseases (such as unstable angina, incontrollable asthma, active bleeding, etc.) and cancer;
  • Severe mental illness (such as depression, schizophrenia) and epilepsy;
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  • Gastrointestinal disorders that affect drug absorption, distribution, and metabolism;
  • Alcohol and drug abuse;
  • Patients who are using and cannot stop the following drugs including Chinese herba preparation containing ginseng, ginkgo leaf or any component of the saffron; medications that may affect cognitive functioning, such as donepezil, rivastigmine, huperzine A, memantine, nimodipine; etc.;
  • Known to be allergic to the composition of SaiLuoTong;
  • Pregnancy or breast-feeding women;
  • New strokes within 3 months before baseline
  • Had participated in other clinical trials before this study 3 months prior to this study.

Trial locations and contacts

16 sites in 1 country.

16 sites in 1 country

China16 sites
  • The Central Hospital of Baotou

    Baotou, Inner Mongolia, 014040

  • Dongzhimen Hospital affiliated to Beijing University of Chinese Traditional Medicine

    Beijing, Beijing Municipality, 100007

  • Beijing Friendship Hospital of Capital Medical University

    Beijing, Beijing Municipality, 100050

  • Xuan Wu Hospital of Capital Medical University

    Beijing, Beijing Municipality, 100053

  • The First Hospital of Jilin University

    Changchun, Jilin, 130021

  • The Hospital of Traditional Chinese and Western Medicine of Jilin Province

    Changchun, Jilin, 132012

  • The First Hospital of Hunan University of Chinese Traditional Medicine

    Changsha, Hunan, 410007

  • The Affiliated Hospital of Chengdu Chinese Traditional Medicine

    Chengdu, Sichuan, 610072

  • The First people's Hospital of Chenzhou

    Chenzhou, Hunan, 423000

  • The Chinese Traditional Medical Hospital of Guangdong Province

    Guangzhou, Guangdong, 510006

  • Southern Hospital of Southern Medical

    Guangzhou, Guangdong, 510515

  • The First Hospital of Zhejiang University

    Hangzhou, Zhejiang, 310003

  • The Zhongda Hospital of Southeast University

    Nanjing, Jiangsu, 210009

  • Chinese Traditional Medical Hospital of Jiangsu Province

    Nanjing, Jiangsu, 210029

  • The Shuguang Hospital of Shanghai University of Chinese Traditional Medicine

    Shanghai, Shanghai Municipality, 201203

  • The First Hospital of Tianjin University of Chinese Traditional Medicine

    Tianjin, Tianjin Municipality, 300193

Other trials in China

About this study

Official title: Phase 2 Clinical Trial of SaiLuoTong Capsule for Vascular Dementia:A 26-week, Multicentre, Randomized, Double -Blind, Placebo-controlled Trial With a 26-week Open-label Extension

As a traditional Chinese medicine compound, SaiLuoTong capsule is proven to have beneficial effects on learning and memory ability in animal models of vascular dementia (VaD). The study hypothesis is that SaiLuoTong capsule will be effective in the treatment of patients with VaD and will be well tolerated. The purpose of the study is to determine the efficacy and safety of SaiLuoTong capsule on patients with mild to moderate VaD. The outcome measures include general cognitive function, executive function, daily living skills, and mental behavior changes of symptoms in VaD patients.

Read the detailed description

Vascular dementia (VaD) is a clinical syndrome of acquired intellectual and functional impairment that results from cerebrovascular diseases. SaiLuoTong capsule is a traditional Chinese medicine compound; it is composed of ginseng extract (the main composition: ginseng total saponins), ginkgo biloba extract (the main composition: YinXingTong ester) and safflower extract (the main composition: the west safflower total glycosides). The function of SaiLuoTong capsule is Yiqi Huoxue and Huayu Tongluo in Chinese traditional medicine theory. Pharmacodynamics studies showed that SaiLuoTong capsule can significantly improve neurological symptoms caused by focal cerebral ischemia in animals, and learning and memory ability in animal models of VaD. Based on these previous evidences, we conduct this study to assess the efficacy and safety of SaiLuoTong capsule in patients with mild to moderate VaD. This study is a phase 2 clinical trial of SaiLuoTong capsule for treatment of vascular dementia. The initial study is a 26-week, multicentre, randomized, double -blind, placebo-controlled study. Patients who complete the initial 26-week trial will be eligible to continue in a 26-week open-label extension study.

The primary and secondary objectives of this study are as following:

Primary Objectives:

  1. To assess the efficacy of SaiLuoTong capsule on cognitive and global functioning in patients with mild-to-moderate VaD;
  2. To assess the safety and tolerability of SaiLuoTong capsule in patients with mild-to-moderate VaD.

Secondary Objectives:

  1. To assess the efficacy of SaiLuoTong capsule in improving the ability to do activities of daily living, executive function, and neuropsychiatric symptoms in patients with mild-to-moderate VaD;
  2. To assess the efficacy of different dosage regimens of SaiLuoTong in patients with mild-to-moderate VaD;
  3. To assess the efficacy of SaiLuoTong treatment of different duration in patients with mild-to-moderate VaD;
  4. To assess the efficacy of SaiLuoTong capsule on different etiological subtypes of VaD, including large-vessel VaD, small-vessel VaD, and VaD of mixed large-vessel and small-vessel origin;
  5. To assess the efficacy of SaiLuoTong capsule in mild VaD patients and moderate VaD patients separately;
  6. To assess to effect of apolipoprotein E (ApoE) ε4 allele on trial outcomes.

The study will assess the changes in cognitive function, daily living skills, executive functions, behavioral and psychological symptoms. The primary measures of effectiveness include the change from baseline in the vascular dementia assessment scale cognitive subscale (V-ADAS-cog) and Alzheimer's disease cooperative study-clinical global impression of change (ADCS-CGIC). Secondary measures of effectiveness include the change from baseline in the Alzheimer's disease cooperative study-activities of daily living inventory (ADCS-ADL), mini-mental state examination (MMSE), clinical dementia rating scale (CDR), sum of boxes of CDR(CDR-sb), clock drawing task (CLOX), Chinese version of executive interview 25 (C-EXIT25) and neuropsychiatric inventory (NPI). Safety measures include physical examinations, vital signs, electrocardiography, laboratory tests, and adverse events records.

Being tested
high dose group of SaiLuoTong capsule, low dose group of SaiLuoTong, the control group
Keywords
vascular dementia, cognition, stroke
Medical subject headings
Dementia, Vascular, Stroke

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • high dose group of SaiLuoTong capsuleDrug

    high dose group of SaiLuoTong capsule: take three pills (180 mg) of SaiLuoTong capsule each time, twice a day, 0.5 hours after breakfast and dinner, taking with lukewarm water.

  • low dose group of SaiLuoTongDrug

    low dose group of SaiLuoTong capsule: take two pills (120 mg) of SaiLuoTong capsule plus one pill of placebo (analog SaiLuoTong capsule) each time, twice a day, 0.5 hours after breakfast and dinner, taking with lukewarm water.

  • the control groupDrug

    The control group is randomly divided into two groups by 1:1. During the first 26 weeks, all subjects will take three pills of placebo each time, twice a day. During the last 26 weeks, the subjects in the placebo group will take two pills of SaiLuoTong plus one pill of placebo or three pills of SaiLuoTong each time, twice a day.

Study groups in NCT01978730
Study groupRoleWhat they receive
high dose group of SaiLuoTong capsuleExperimentaltake three pills (180 mg) of SaiLuoTong capsule each time, twice a day, 0.5 hours after breakfast and dinner, taking with lukewarm water.
Receives: Drug: high dose group of SaiLuoTong capsule
low dose group of SaiLuoTong capsuleExperimentaltake two pills (120 mg) of SaiLuoTong capsule plus one pill of placebo (analog SaiLuoTong capsule) each time, twice a day, 0.5 hours after breakfast and dinner, taking with lukewarm water.
Receives: Drug: low dose group of SaiLuoTong
the control groupPlacebo comparatorThe control group is randomly divided into two groups by 1:1. During the first 26 weeks, all subjects will take three pills of placebo each time, twice a day. During the last 26 weeks, the subjects in the placebo group will take two pills of SaiLuoTong plus one pill of placebo or three pills of SaiLuoTong each time, twice a day.
Receives: Drug: the control group

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. V-ADAS-cog

    The V-ADAS-cog comprises the ADAS-cog plus the Maze and Number Cancellation test to specifically assess executive function.

    Measured: weeks 0, 13, 26, 39, and 52

  2. ADCS-CGIC

    The ADCS-CGIC involves comparison of data acquisition from both home and clinic and the use of both informant-ratings and self-ratings. Important outcomes include clinical global impressions of change (CGIC) as indicators of clinically meaningful change.

    Measured: weeks 0, 13, 26, 39, and 52

Secondary outcomes (7)
  1. ADCS - ADL

    An inventory to assess the patient's ability to do basic activities of daily living and instrumental activities of daily living.

    Measured: weeks 0, 26, and 52

  2. MMSE

    The MMSE is a global test of cognitive function, for which the total score ranges from 0 to 30, with higher scores indicating lesser severity.

    Measured: screening, weeks 0, 26, and 52

  3. CDR scale

    The CDR is a numeric scale used to quantify the severity of symptoms of dementia (i.e. its 'stage').

    Measured: screening, weeks 0, 26, and 52

  4. CLOX

    It was designed to elicit executive impairment and to discriminate it from non-executive constructional failure.

    Measured: weeks 0, 26, and 52

  5. C-EXIT25

    The C-EXIT25 is a measure of executive function based on a 15-min interview addressing 25 items related to executive cognition.

    Measured: weeks 0, 26, and 52

  6. NPI

    The NPI is used to assess neuropsychiatric symptoms. The NPI uses a screening strategy to minimize administration time, examining and scoring only those behavioral domains with positive responses to screening questions.

    Measured: weeks 0, 26, and 52

  7. CDR-sb

    CDR-sb is the sum of boxes of CDR, with higher scores indicating severer degree of impairment.

    Measured: weeks 0, 26, and 52

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Nov 2013 (estimated)
  2. Study startDec 2011
  3. Primary completionJul 2014 (estimated)
  4. Study completionJul 2014 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
372 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01978730
Sponsor's protocol ID
SW001
Status last verified
May 2014
First submitted
31 Oct 2013
Last updated
8 May 2014
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing high dose group of SaiLuoTong capsule and low dose group of SaiLuoTong in people with Vascular Dementia, run by Shineway Pharmaceutical Co.,Ltd at 16 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 8 May 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 16 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

V-ADAS-cog (time frame: weeks 0, 13, 26, 39, and 52). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 May 2014.

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