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Rett SyndromeNCT03259971

The Role of Probiotics PS128 in Movement Disorders

A study testing Probiotic-Lactobacillus plantarum PS128 in people with Rett Syndrome and Tourette Syndrome, run by National Taiwan University Hospital at 1 site in Taiwan.

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 The sponsor has not verified this record for over two years, so it may be out of date.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

Pediatric movement disorders comprise of a large number of different neurological diseases including Rett syndrome (RTT) and Tourette syndrome. Studies in the literature as well as our preliminary reports showed that Rett syndrome and Tourette syndrome/Tic disorders are associated with a dysbiosis of the gut… Read more about this study

Who is it for?
Ages 1 year to 50 years
Conditions the study is for
Rett Syndrome, Tourette Syndrome, Tic Disorders
What is being tested?
Probiotic-Lactobacillus plantarum PS128
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
500 participants
Where
1 siteTaiwan
Study dates
25 Aug 2017to 20 Aug 2021
Phase
Interventional
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 1 year to 50 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Rett syndrome:
  • Males and females who have classic or atypical RTT diagnosed under consensus criteria
  • Age: 1-50 years
  • Tic disorders:
  • males and females with clinical diagnosis
  • Age: 8-18years
Show all 11Show fewer
  • Treatment naive 4 weeks prior to study
  • Those with standard medications, dosage stable 4 weeks prior to study
  • AADC syndrome:
  • Males and females with AADC diagnosis
  • Age: 1-50 years

Who cannot join

  • Those who took probiotic or probiotic related product 4 weeks prior to the study or during the study
  • Those who took antibiotic 4 weeks prior to the study
  • Those showing poor compliance with any aspect of the study
  • Those had adverse reactions to PS128

Trial locations and contacts

1 site in 1 country.

Taiwan1 site, 1 recruiting
  • National Taiwan University Children Hospital

    Taipei, 100

    Wang-Tso Lee, PhD, 02-23123456 ext. 71618, leeped@hotmail.com

    Recruiting

Other trials in Taiwan

About this study

Pediatric movement disorders comprise of a large number of different neurological diseases including Rett syndrome (RTT) and Tourette syndrome. Studies in the literature as well as our preliminary reports showed that Rett syndrome and Tourette syndrome/Tic disorders are associated with a dysbiosis of the gut microbiota compared to normal control. Probiotic Lactobacillus plantarum PS128 is a diet supplement that available for human consumption. Probiotic Lactobacillus plantarum PS128 had showed psychotropic effects such as ameliorate anxiety- and depression-like behaviors as well as altered the level of neurotransmitters such as dopamine in the brain in animal models, which might be through microbiota-gut-brain axis. Therefore, the purpose of this study is to access the possible neurobehavior effects of Probiotic Lactobacillus plantarum PS128 in Rett syndrome and Tic disorders/Tourette syndrome.

Read the detailed description

The study is a placebo-controlled double-blind randomized study, to determine the benefits of probiotic Lactobacillus plantarum PS128 vs placebo on symptoms for Tic disorders; and the symptoms, behavior, or cognition for Rett syndrome.

Patients with the Rett syndrome and Tic disorders/Tourette syndrome will be recruited into our study.The study period will last 4 months for Rett syndrome patients, age one year-50years; while 2 months for Tic disorders/Tourette syndrome patient, age 5 years-18 years.

The study will be performed in National Taiwan University Children Hospital. The patients will have neuropsychological and gut microbiota evaluation before and at the end of the study. There will also be interim follow up evaluations each month after the patient start taking the probiotic or placebo.

Being tested
Probiotic-Lactobacillus plantarum PS128, Placebo
Keywords
Rett syndrome, Tourette syndrome, Probiotic
Medical subject headings
Rett Syndrome, Tourette Syndrome, Tic Disorders

What participants receive

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

  • Probiotic-Lactobacillus plantarum PS128Dietary supplement

    Also called Lactobacillus plantarum PS128

    Probiotic supplement of Lactobacillus plantarum PS128 , 1 tablet , twice a day , 12 hrs apart, lasting 2 months for Tic disorders and 4 months for Rett syndrome

  • PlaceboDietary supplement

    placebo , 1 tablet , twice a day , 12 hrs apart, lasting 2 months for Tic disorders and 4 months for Rett syndrome

Study groups in NCT03259971
Study groupRoleWhat they receive
Placebo (for tic disorder)Placebo comparatorThe placebo will be dispensed to equal the volume of 1 tablet of Probiotic PS128, which is taken orally in 2 divided doses, 12 hours apart during the study period of 2 months for Tic disorders.
Receives: Dietary Supplement: Placebo
PS128 (tic disorder)Active comparatorThe Probiotic group in tic disorder will take Probiotic-Lactobacillus plantarum PS128, which contain 300mg (3x10^10 CFU) Lactobacillus plantarum PS128 and 100mg of Microcrystalline Cellulose in each tablet. It will be taken orally in 2 divided doses, 12 hours apart during the study period of 2 months for Tic disorders.
Receives: Dietary Supplement: Probiotic-Lactobacillus plantarum PS128
Placebo (for Rett syndrome)Placebo comparatorThe placebo will be dispensed to equal the volume of 1 tablet of Probiotic PS128, which is taken orally in 2 divided doses, 12 hours apart during the study period of 4 months for Rett syndrome
Receives: Dietary Supplement: Placebo
PS128 (Rett syndrome)Active comparatorThe Probiotic group will take Probiotic-Lactobacillus plantarum PS128, which contain 300mg (3x10^10 CFU) Lactobacillus plantarum PS128 and 100mg of Microcrystalline Cellulose in each tablet. It will be taken orally in 2 divided doses, 12 hours apart during the study period of 4 months for Rett Syndrome.
Receives: Dietary Supplement: Probiotic-Lactobacillus plantarum PS128

What is being measured

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

  1. Neuropsychological test (Mullen Scales of Early Learning)

    for Rett syndrome

    Measured: Change at four months from baseline

  2. Yale Global Tic Severity Scale (YGTSS)

    for Tic disorders

    Measured: Change at 2 months from baseline

Secondary outcomes (14)
  1. RTT severity score

    For Rett syndrome

    Measured: Change at four months from baseline

  2. Dystonia status (Fahn Marsden rating scale/Unified Dystonia Rating Scale )

    For Rett syndrome

    Measured: Visit 1, Visit 2, Visit 3, Visit 4 (Up to 4 months)

  3. Anxiety, Depression, and Mood Scale (ADAMS)

    For Rett syndrome

    Measured: Change at four months from baseline

  4. Ghuman-Folstein Screen for Social Interaction (SSI)

    For Rett syndrome

    Measured: Change at four months from baseline

  5. Vineland Adaptive Behavioral scale

    For Rett syndrome

    Measured: Change at four months from baseline

  6. Early social communication scales

    For Rett syndrome

    Measured: Change at four months from baseline

  7. Pediatric Evaluation of Disability Inventory

    For Rett syndrome

    Measured: Change at four months from baseline

  8. Stool and gut microbiota evaluation

    For Rett and Tic disorders

    Measured: Change at four months from baseline

  9. Child Behavior Checklist (CBCL)

    For Tic disorders

    Measured: Change at 2 months from baseline

  10. Continuous performance test

    For Tic disorders

    Measured: Change at 2 months from baseline

  11. The Migraine Disability Assessment Test

    For Tic disorders

    Measured: Change at 2 months from baseline

  12. Children's Depression Inventory

    For Tic disorders

    Measured: Change at 2 months from baseline

  13. Obsessive-compulsive inventory

    For Tic disorders

    Measured: Change at 2 months from baseline

  14. Swanson, Nolan and Pehlam version IV

    For Tic disorders

    Measured: Change at 2 months from baseline

Timeline

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

  1. First posted24 Aug 2017
  2. Study start25 Aug 2017
  3. Primary completion20 Aug 2021 (estimated)
  4. Study completion20 Aug 2021 (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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
500 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03259971
Sponsor's protocol ID
201703061MIPA
Status last verified
Apr 2020
First submitted
16 Aug 2017
Last updated
22 Oct 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Wong LC, Hsu CJ, Wu YT, Chu HF, Lin JH, Wang HP, Hu SC, Tsai YC, Tsai WC, Lee WT. Investigating the impact of probiotic on neurological outcomes in Rett syndrome: A randomized, double-blind, and placebo-controlled pilot study. Autism. 2024 Sep;28(9):2267-2281. doi: 10.1177/13623613231225899. Epub 2024 Feb 15.

    PubMed 38361371

Questions about this trial

What is this clinical trial studying?

A study testing Probiotic-Lactobacillus plantarum PS128 in people with Rett Syndrome and Tourette Syndrome, run by National Taiwan University Hospital at 1 site in Taiwan.

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 4 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 22 Oct 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Taiwan. 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.

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?

Contact Wang-Tso Lee, MD,PhD (+886-223123456 ext. 71618, leeped@hotmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Neuropsychological test (Mullen Scales of Early Learning) (time frame: Change at four months from baseline). 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?

On the ClinicalTrials.gov record for NCT03259971, which also lists 1 linked publication.

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 22 Oct 2020.

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