EpilepsyPhase 1NCT02539134
TAK-935 Multiple Rising Dose Study in Healthy Participants
A Phase 1 study testing TAK-935 in people with Epilepsy, run by Takeda at 1 site in United States.
Trial summary
The purpose of this study is to assess the safety, tolerability and pharmacokinetics (PK) of multiple rising doses of TAK-935 in healthy participants. Read more about this study
- Who is it for?
- Ages 18 to 55 yearsHealthy volunteers can take part
- Conditions the study is for
- Epilepsy
- What is being tested?
- TAK-935
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 40 participants
- Where
- 1 siteUnited States
- Study dates
- Sep 2015to Apr 2016
- Phase
- Phase 1
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 18 to 55 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- All Cohorts
- Is capable of understanding and complying with protocol requirements.
- Signs and dates a written, informed consent form and any required privacy authorization prior to the initiation of any study procedures including requesting that a participant fast for any laboratory evaluations.
- Is a healthy male or female aged 18 to 55 years inclusive, at the time of informed consent and first study medication dose.
- Weighs at least 45 kilogram (kg) and has a body mass index (BMI) from 18.0 to 30.0 kilogram per square meter (kg/m^2), inclusive at Screening and Day -1.
- Male participant who is non-sterilized and sexually active with a female partner of childbearing potential agrees to use adequate contraception from signing of informed consent throughout the duration of the study and for 30 days after last dose.
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- Female participant of childbearing potential who is sexually active with a non-sterilized male partner agrees to use routinely adequate contraception from signing of informed consent and throughout the duration of the study, and for 30 days after the last dose.
- Can complete the CogState Battery at Screening.
- Additional Inclusion Criteria for Participants undergoing cerebrospinal fluid (CSF) Sampling (Part 2 only):
- Agrees to spinal tap procedures for CSF collection.
Who cannot join
- All Cohorts
- Has received any investigational compound within 30 days prior to randomization.
- Has received TAK-935 in a previous clinical study or as a therapeutic agent.
- Has a significant history of uncontrolled, clinically significant neurologic (including seizure disorders), cardiovascular, pulmonary, hepatic, renal, metabolic, gastrointestinal, urologic, immunologic, endocrine disease or psychiatric disorder or endocrine disease or other abnormality or any significant results from physical examinations, or clinical laboratory results which may impact the ability of the participant to participate or potentially confound the study results. It is the responsibility of the investigator to assess the clinical significance; however, consultation with the Takeda Medical Monitor may be warranted.
- Has a known hypersensitivity to any component of the formulation of TAK-935.
- Has a history of drug abuse (defined as any illicit drug use) or a history of alcohol abuse within 1 year prior to the screening visit or is unwilling to agree to abstain from alcohol and drugs throughout the study. One unit is equivalent to a half-pint of beer or a single measure of spirits or 1 small glass of wine.
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- Has taken any excluded medication, supplements, or food products during the time periods listed in the Excluded Medications and Dietary Products table.
- Additional Exclusion Criteria for Participants undergoing CSF sampling (Part 2)
- Has CSF collection performed within 30 days prior to check-in (Day -3).
- Has a known hypersensitivity to the anesthetic or its derivatives used during CSF collection, or any medication used to prepare the area of lumbar puncture.
- Has significant vertebral deformities (scoliosis or kyphosis) which, in the opinion of the investigator, may interfere with lumbar puncture procedure.
- Has a history of clinically significant back pain and/or injury.
- Has local infection at the puncture site.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: A Phase 1, Randomized, Double-Blind, Placebo-Controlled, Safety, Tolerability and Pharmacokinetic Study of Escalating Multiple Doses of TAK-935 in Healthy Subjects
The purpose of this study is to assess the safety, tolerability and pharmacokinetics (PK) of multiple rising doses of TAK-935 in healthy participants.
Read the detailed description
The drug being tested in this study is called TAK-935. This study will look at the pharmacokinetics, safety and tolerability of TAK-935 in healthy participants. The study will enroll approximately 56 participants. Participants will be randomly assigned (by chance, like flipping a coin) to 1 of the 5 cohorts in Part 1, which will remain undisclosed to the participant and study doctor during the study (unless there is an urgent medical need):
- Part 1, Cohort 1: TAK-935 100 mg QD
- Part 1, Cohort 2: TAK-935 300 mg QD
- Part 1, Cohort 3: TAK-935 300 mg BID
- Part 1, Cohort 4: TAK-935 600 mg QD
- Part 1, Cohort 5: TAK-935 400 mg QD Participants will be asked to take the oral solution once or twice a day at the same time for 14 days. An optional Part 2 may be conducted for collecting data to assess the engagement by TAK-935 of the central molecular target cholesterol 24S-hydroxylase (CH24H) by measuring the changes of levels of the metabolite 24S-hydroxycholesterol (24HC). In Part 2, participants will be assigned to up to 2 treatment groups at doses based on the data from other ongoing TAK-935 trials, combined with the safety and tolerability data from Cohorts 1-4 of Part 1.
This single center trial will be conducted in the United States. The overall time to participate in this study will be approximately 30 days. Participants will be admitted in the clinic for the first 14 days, and will be contacted by telephone on Day 28 for a follow-up assessment.
- Conditions
- Epilepsy
- Being tested
- TAK-935, Placebo
- Keywords
- Drug therapy
- Medical subject headings
- Epilepsy
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
TAK-935Drug
TAK-935 oral solution
PlaceboDrug
TAK-935 placebo-matching oral solution
| Study group | Role | What they receive |
|---|---|---|
| Part 1, Cohort 1: TAK-935 100 mg QD | Experimental | TAK-935 100 milligram (mg), solution, orally, once daily (QD) or TAK-935 placebo-matching solution, orally, QD for up to 14 days. Receives: Drug: TAK-935; Drug: Placebo |
| Part 1, Cohort 2: TAK-935 300 mg QD | Experimental | TAK-935 300 mg, solution, orally, QD or TAK-935 placebo-matching solution, orally, QD for up to 14 days. Receives: Drug: TAK-935; Drug: Placebo |
| Part 1, Cohort 3: TAK-935 300 mg BID | Experimental | TAK-935 300 mg, solution, orally, twice daily (BID) or TAK-935 placebo-matching solution, orally, BID for up to 10 days. Receives: Drug: TAK-935; Drug: Placebo |
| Part 1, Cohort 4: TAK-935 600 mg QD | Experimental | TAK-935 600 mg, solution, orally, QD or TAK-935 placebo-matching solution, orally, QD for up to 10 days. Receives: Drug: TAK-935; Drug: Placebo |
| Part 1, Cohort 5: TAK-935 400 mg QD | Experimental | TAK-935 400 mg, solution, orally, QD or TAK-935 placebo-matching solution, orally, QD for up to 14 days. Receives: Drug: TAK-935; Drug: Placebo |
| Part 2, Cohort 6: TAK-935 Dose 1 | Experimental | TAK-935 first decided dose as determined from other TAK-935 trials and Cohorts 1 to 4 of Part 1, solution, orally, QD or TAK-935 placebo-matching solution, orally, QD for up to 14 days. Receives: Drug: TAK-935; Drug: Placebo |
| Part 2, Cohort 7: TAK-935 Dose 2 | Experimental | TAK-935 second decided dose as determined from other TAK-935 trials and Cohorts 1 to 4 of Part 1, solution, orally, QD or TAK-935 placebo-matching solution, orally, QD for up to 14 days. Receives: Drug: TAK-935; Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage of Participants Who Experience at Least One Treatment-emergent Adverse Event (TEAE)
Measured: Day 1 up to Day 28
Percentage of Participants Who Meet the Takeda Markedly Abnormal Criteria for Safety Laboratory Tests at Least Once Post Dose
Measured: Baseline up to Day 15
Percentage of Participants Who Meet the Takeda Markedly Abnormal Criteria for Vital Sign Measurements at Least Once Post Dose
Measured: Baseline up to Day 15
Percentage of Participants Who Meet the Takeda Markedly Abnormal Criteria for Safety 12-lead Electrocardiogram (ECG) Parameters at Least Once Post Dose
Measured: Baseline up to Day 15
Secondary outcomes (4)
Cmax: Maximum Observed Plasma Concentration for TAK-935
Measured: Day 1 and Day 14: Pre-dose and at multiple time points (up to 24 hours for Cohorts 1, 2, 4, and 5; up to 12 hours for Cohort 3) post-dose
AUClast: Area Under the Plasma Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration for TAK-935
Measured: Day 1 and Day 14: Pre-dose and at multiple time points (up to 24 hours for Cohorts 1, 2, 4, and 5; up to 12 hours for Cohort 3) post-dose
AUC∞: Area Under the Plasma Concentration-time Curve From Time 0 to Infinity for TAK-935
Measured: Day 1: Pre-dose and at multiple time points (up to 24 hours for Cohorts 1, 2, 4, and 5; up to 12 hours for Cohort 3) post-dose
AUCτ: Area Under the Plasma Concentration-time Curve From Time 0 to Over the Dosing Interval for TAK-935
Measured: Day 14: Pre-dose and at multiple time points (up to 24 hours for Cohorts 1, 2, 4, and 5; up to 12 hours for Cohort 3) post-dose
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Sep 2015 (estimated)
- Study startSep 2015
- Primary completionApr 2016
- Study completionApr 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for EpilepsyStudies of the same condition, open and under way.
- More trials run by TakedaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 1
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 40 participants (actual)
Sponsor and investigators
- Lead sponsor
- Takeda
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Medical Director, Study director, Takeda (Note: This product was divested to Mistrau Bio, Inc. in 2026)
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02539134
- Sponsor's protocol ID
- TAK-935-1002
- Other IDs
- U1111-1168-6634
- Status last verified
- Aug 2026
- First submitted
- 31 Aug 2015
- Last updated
- 15 Sep 2026
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No