ClinicalTrials.gg
CompletedNCT03058562Updated Nov 6, 2017

A Study to Evaluate the Effects of ABX-1431 on Patients With Tourette Syndrome

A Phase 1 interventional study of ABX-1431 and Placebo Comparator in Tourette Syndrome and Chronic Motor Tic Disorder, sponsored by Abide Therapeutics. Completed at 1 site in Germany. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2017-11-06.

Sponsored by Abide Therapeutics (part of H. Lundbeck A/S) · Phase 1, Interventional, and Basic science

Phase
Phase 1
Study type
Interventional
Enrollment
23
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 21 studies in Tourette Syndrome with a site in Germany — 1 open to participants now, 2 under way, none of them phase 3. Tourette Syndrome · Germany.

Enrollment
18th of 19
23 · median 98
Started
2017
the only one that year
Phase 1
Only one
of the 21
Registered
10th of 21
by date
Lead sponsor
2 of 21
Abide Therapeutics

Among the 21 studies in Tourette Syndrome with a site in Germany, this one is the 18th largest by enrollment of the 19 interventional ones that give a count, is the only one that started in 2017, is the only one in phase 1, and was the 10th registered.

Tourette Syndrome

240 studies on the registry are indexed under Tourette Syndrome; 40 are open to participants now.

Browse Tourette Syndrome studies →

Open to participants now

1 of the 21 studies in Tourette Syndrome with a site in Germany is open now. Recruiting first, the newest first:

A study can be open while its sites in Germany have not opened yet or have stopped. Only those recruiting at a site in Germany →

Who these studies take

Of the 33 Tourette Syndrome studies recruiting now, 9 (27%) set no upper age limit and 22 (67%) stop at 75 or younger; 20 take children under 18; 9 take healthy volunteers.

This study: 18 Years to 65 Years · all sexes · no healthy volunteers.

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This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 21 studies in Tourette Syndrome with a site in Germany, or all of them as a file.
02

Study summary

The study will investigate the effects and the safety of a single-dose of ABX-1431 HCl on tics and other symptoms of Tourette Syndrome.

During part 1 (periods 1 and 2) each patient will receive study drug once and placebo once.

Patients who complete part 1 with adequate clinical safety will be offered the option to participate in part 2 (periods 3 and 4) and again willl receive study drug once and placebo once where, in contrast to part 1, administration will take place with a standard high fat meal.

Read the detailed description

This is a single dose, double-blind, randomized, placebo-controlled, cross-over study. This study will assess the single dose effects of ABX-1431 HCl on tics and other symptoms of Tourette Syndrome.

All patients will undergo a screening visit for enrollment criteria. Eligible patients will be treated with a single dose of ABX-1431 HCl or placebo followed by efficacy, safety and pharmacokinetics assessments. After a washout period of 1-3 weeks, patients will undergo identical procedures with the other treatment.

Only patients who complete the first part of the study with adequate clinical safety will be offered the option to participate in an additional two period crossover, where ABX-1431 HCl or placebo is taken with a standard high fat meal. Again, efficacy, safety and pharmacokinetics assessments will be done. After a washout period of 1-3 weeks, patients will undergo identical procedures with the other treatment.

This study will enroll 20 patients with a diagnosis of Tourette Syndrome OR chronic motor tic disorder.

03

Conditions studied

  • Tourette Syndrome
  • Chronic Motor Tic Disorder

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04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Principal Inclusion Criteria:

  • Patient is a male or female between the age of 18 and 65 years of age at the Screening Visit.
  • Patient has a diagnosis of Tourette Syndrome OR chronic motor tic disorder as defined by the , Fifth Edition (DSM-5) criteria.
  • Patient's Yale Global Tic Severity Scale (YGTSS) total tic sub-scale (TTS) results must be ≥ 18 (Range 0-50) at the Screening Visit.
  • Patients taking daily medications for symptoms of Tourette Syndrome [e.g. neuroleptics (e.g. aripiprazole, risperidone) or selective serotonin reuptake inhibitors (e.g. fluoxetine)] must be on a stable dose of medication for at least 30 days before the Screening Visit and must be expected to remain on a stable dose during this study.

Principal Exclusion Criteria:

  • Patient is taking potent cytochrome P450 3A4/5 inducers [e.g. carbamazepine, oxcarbazine, rifampin, St. John's Wort (Hypericum perforatum), or phenytoin]. Patient is taking strong P450 3A4/5 inhibitors including atazanavir, bocepravir, clarithromycin, grapefruit juice, indinavir, itraconazole, ketoconazole, nefazodone, nelfinavir, posaconazole, ritonavir, saquinavir, telithromycin, or voriconazole.
  • Patients with a diagnosis of any psychiatric comorbidity (obsessive compulsive disorder, attention deficit hyperactivity disorder) OR generalized anxiety disorder, depression or post-traumatic stress disorder that is unstable or requires alteration in therapy are excluded. Patients with a past history of psychosis or schizophrenia at any time are excluded. Patients with stable OCD or ADHD requiring no alteration in therapy may be enrolled.
Terms in these criteria, in plain language(1)

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.

DSM diagnostic criteria

The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.

05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
23 participants (actual)

Study arms

  • Experimental
    Crossover Sequence A

    Each in the fasting state: Period 1: Single-dose matching placebo Period 2: Single-dose ABX-1431

    Drug: ABX-1431 · Drug: Placebo Comparator

  • Experimental
    Crossover Sequence B

    Each in the fasting state: Period 1: Single-dose ABX-1431 Period 2: Single-dose matching placebo

    Drug: ABX-1431 · Drug: Placebo Comparator

  • Experimental
    Crossover Sequence C

    Each with a standard high fat meal: Period 3: Single-dose matching placebo Period 4: Single-dose ABX-1431

    Drug: Placebo Comparator · Drug: ABX-1431

  • Experimental
    Crossover Sequence D

    Each with a standard high fat meal: Period 3: Single-dose ABX-1431 Period 4: Single-dose matching placebo

    Drug: Placebo Comparator · Drug: ABX-1431

Interventions

  • ABX-1431, capsules, 40 mg in the fasting state

  • DrugPlacebo Comparator

    Matching Placebo

  • ABX-1431, capsules, 20 mg with a high fat meal

06

What researchers measure

Primary outcomes

  1. Change of rating in Modified Rush Video Scale (MRVS) over time

    Time frame: pre-dose, post-dose (4 hours, 8 hours)

  2. Change in rating of Yale Global Tic Severity Scale (YGTSS) over time

    Time frame: pre-dose, post-dose (4 hours, 8 hours)

  3. Change of rating in Adult Tic Questionnaire (ATQ) over time

    Time frame: pre-dose, post-dose (4 hours, 8 hours, 12 hours)

  4. Change of rating in Premonitory Urge for Tics Scale (PUTS) over time

    Time frame: pre-dose, post-dose (4 hours, 8 hours, 12 hours)

Secondary outcomes

  1. ABX-1431 and metabolite (M55) plasma pharmacokinetics

    Time frame: pre-dose, post-dose (2 hours, 4 hours, 8 hours, 24 hours)

  2. 2-AG hydrolysis in PBMC

    Time frame: pre-dose, post-dose (2 hours, 4 hours, 8 hours, 24 hours)

  3. Number and severity of adverse events (AEs), serious adverse events (SAEs), and suspected unexpected serious adverse reactions (SUSARs)

    Time frame: screening, pre-dose, post-dose (0 hours, 2 hours, 4 hours, 8 hours, 12 hours, 24 hours), follow-up

  4. Number of patients with clinically significant change in vital signs

    The following vital signs will be assessed: heart rate, blood pressure, respiratory rate, temperature

    Time frame: screening, pre-dose, post-dose (2 hours, 4 hours, 8 hours, 24 hours)

  5. Number of patients with clinically significant change in Laboratory safety tests

    The following laboratory safety tests will be assessed: Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), Albumin, Alkaline phosphatase, Bicarbonate, Calcium, Chloride, Cholesterol, Creatinine, Glucose, Potassium, Sodium, Bilirubin, total (bilirubin to be fractionated if total bilirubin is elevated), Blood urea nitrogen (BUN)/Urea, hemoglobin, hematocrit, red blood cell (RBC) count, platelet count, white blood cell (WBC) count (total and differential count), polymorphonuclear leukocytes (neutrophils), lymphocytes, eosinophils, monocytes, basophils; Urinalysis: pH, specific gravity, glucose, ketones, leukocyte, esterase, nitrites, occult blood, protein

    Time frame: screening, pre-dose, post-dose (24 hours)

  6. 12-lead ECG assessments

    Time frame: screening, pre-dose, post-dose (4 hours)

07

Study locations

1 site
  • Medizinische Hochschule Hannover
    Hannover, Niedersachsen 30625, Germany
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Feb 2017 to primary completion in Oct 2017, 8 months.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 13, 2017
First posted
Feb 23, 2017
StartActual
Feb 1, 2017
Primary completionActual
Oct 4, 2017
CompletionActual
Oct 4, 2017
Last update
Nov 6, 2017
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 6, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03058562
Lead sponsor
Abide Therapeutics
Responsible party
Sponsor
First posted
Feb 23, 2017
Start date
Feb 1, 2017
Primary completion
Oct 4, 2017
Completion
Oct 4, 2017
Last update
Nov 6, 2017

Study contacts

Chan Beals
study director · Abide Therapeutics, Inc.

Oversight

Data monitoring committee
No
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 Nov 2017. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: ABX-1431

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