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Metadoxine

Phase 2

ADHD | Small molecule | Psychiatry |Arcturus Therapeutics Holdings Inc.|Last Updated: Mar 13, 2017

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment120

FDA Designations

No designations recorded

Clinical trial landscape

Metadoxine · 5 trials · 5 indications

Phase 2 3Phase 1 2
NCT02189772Safety and Tolerability Study of Metadoxine Extended Release (MDX) (Previously Known as MG01CI) in PI-ADHD Adolescent SubjectsADHD, Predominantly Inattentive Type
COMPLETED83 Analytics
NCT01685281Study Comparing Two Doses of MG01CI and Placebo in Adults With Predominantly Inattentive Attention Deficit Hyperactivity DisorderADHD Predominantly Inattentive Type
COMPLETED36 Analytics
NCT01243242Clinical Efficacy & Safety, of Metadoxine (MG01CI) Extended Release in Attention-Deficit Hyperactivity Disorder (ADHD)ADHD
COMPLETED120 Analytics
PHASE2COMPLETED
Safety and Tolerability Study of Metadoxine Extended Release (MDX) (Previously Known as MG01CI) in PI-ADHD Adolescent Subjects
ADHD, Predominantly Inattentive TypeUnlock trial analytics
PHASE2COMPLETED
Study Comparing Two Doses of MG01CI and Placebo in Adults With Predominantly Inattentive Attention Deficit Hyperactivity Disorder
ADHD Predominantly Inattentive TypeUnlock trial analytics
PHASE2COMPLETED
Clinical Efficacy & Safety, of Metadoxine (MG01CI) Extended Release in Attention-Deficit Hyperactivity Disorder (ADHD)
ADHDUnlock trial analytics

Study Endpoints

Primary Endpoints

Safety and Tolerability
Up to 6 weeks

Frequency of treatment emergent adverse events (AEs). Frequency of subjects who withdrew early from the study due to AE.

Change in TOVA ADHD score from Screening/Baseline to 4 hours post-dose;
4 weeks

TOVA® is a computerized test that provides information about an individual's sustained attention, speed and consistency of responding, and behavioral self-regulation and executive functioning

Conners' Adult ADHD Rating Scales (CAARS™)
6 weeks (from visit 1 baseline to visit 6)

The primary efficacy endpoint is the difference in change (decrease) in CAARS (Total ADHD Symptoms Score) between the study groups. The CAARS assess the presence and severity of ADHD symptoms and behaviors in adults. Respondents are asked to report their own experiences by rating items pertaining to their behavior/problems using a 4-point Likert-style format ranging from 0 ('Not at all', 'never') to 3 ('Very much', 'very frequently'). The scale measures ADHD symptoms using a 30-item questionnaire.Total score is the sum of all the items ,min=30 Max=90

Pharmacokinetic (PK) Endpoints
6 weeks

Pharmacokinetic calculations will be based on individual plasma concentrations of the blood sampling on Day 1 and Day 5. The following pharmacokinetic parameter will be calculated based on the plasma concentrations measured: Cmax Maximum concentration achieved

Secondary Endpoints

Efficacy
Up to 5 weeks
PK
Up to 5 weeks
Change in CANTAB sub-scores from baseline (Visit 2) to 4 hours post-dose;
4 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
MDX (metadoxine extended release)EXPERIMENTALRoute of administration: oral The dose of MDX (approximately 14-22 mg/kg) will be determined by the subject's weight at the baseline visit as follows: * 40-49 kg 700 mg consisting of a 700 mg tablet * 50-64 kg 1050 mg consisting of a 700 mg tablet, a 350 mg tablet * 65-100 kg 1400 mg consisting of two 700 mg tablets
placeboPLACEBO_COMPARATORPlacebo tablets will be similar in appearance (color and size) to the investigational product
Metadoxine (MG01CI) 1400 mgACTIVE_COMPARATORsingle dose of Metadoxine (MG01CI) 1400 mg
Metadoxine (MG01CI) 700 mgACTIVE_COMPARATORSingle dose of Metadoxine (MG01CI) 700 mg
METADOXINEEXPERIMENTALEligible subjects will be randomly assigned to receive MG01CI (1,400 mg)
MG01CI 1400 mgEXPERIMENTAL -
Metadoxine SREXPERIMENTALMetadoxine is a pyrolate salt of Pyridoxine

Interventions

NameTypeDescription
Metadoxine extended releaseDRUGMG01CI
PlaceboDRUGInactive drug
Metadoxine (MG01CI)DRUGMG01CI is an orally administered extended release formulation of metadoxine. Doses: 1400 mg and 700 mg and Placebo
Metadoxine (MG01CI )DRUG -
Extended Release MetadoxineDRUGone oral 1400mg dose (2 tablets)
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Eligibility Criteria

Age Range13 Years to 17 Years
SexALL
Healthy VolunteersNo
Study Sites6

Inclusion Criteria: 1. Adolescent males and females, 13-17 years old, inclusive, at screening visit, with visible axillary hair. 2. Diagnosed with predominantly inattentive ADHD based on DSM V criteria for ADHD as assessed by the Adolescent ADHD Clinician Diagnostic Scale (Adol-CDS V1.2). 3. Clinic...

Countries:Israel
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Competitive Landscape -ADHD 3 trials

CompanyTickerTrialsLead PhaseDrugs
Supernus Pharmaceuticals, Inc.SUPN1PHASE3SPN-812
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Frequently asked questions about Metadoxine

What is Metadoxine used for?

Metadoxine is an investigational small molecule being studied for attention-deficit hyperactivity disorder (ADHD), including the predominantly inattentive type, in adults. It has also been evaluated in healthy adult subjects for pharmacokinetic studies. The drug is in clinical development and is not approved for any indication.

Who makes Metadoxine?

Metadoxine is being developed by Arcturus Therapeutics Holdings Inc. (NASDAQ: ARCT). The company is conducting clinical trials of the drug for ADHD in adult patients.

What phase is Metadoxine in?

Metadoxine is in Phase 2 clinical development for ADHD. Two Phase 2 trials have been completed, and one Phase 1 pharmacokinetic study has also been completed. The drug remains investigational and has not received regulatory approval.

What clinical trials is Metadoxine in?

Metadoxine has been studied in three completed trials: NCT01243242, a Phase 2 efficacy and safety study in 120 adults with ADHD; NCT01685281, a Phase 2 dose comparison study in 36 adults with predominantly inattentive ADHD; and NCT01933997, a Phase 1 pharmacokinetic study in 16 healthy volunteers. All trials were conducted in Israel.

Is Metadoxine the same as MG01CI?

Yes, Metadoxine is also known as MG01CI. Clinical trials have used the name MG01CI to refer to the extended-release formulation of metadoxine being studied for ADHD in adults.