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Healthy SubjectsPhase 1NCT03165097

Study to Evaluate Safety and Tolerability of ACT-709478 in Healthy Subjects

A Phase 1 study testing ACT-709478, Midazolam and ACT-709478 combined with midazolam in people with Healthy Subjects, run by Idorsia Pharmaceuticals Ltd. at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary purpose of this study is to evaluate the safety and tolerability of ascending multiple doses of ACT-709478 in healthy male and female subjects Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Subjects
What is being tested?
ACT-709478, Midazolam and ACT-709478 combined with midazolam
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
46 participants
Where
1 siteGermany
Study dates
7 Jul 2017to 28 Dec 2018
Phase
Phase 1
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 18 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Signed informed consent form
  • Healthy male and female subjects aged between 18 and 55 years (inclusive) at screening
  • Negative serum pregnancy tests at screening and negative urine pregnancy test at Day -1 for women and agreement to use 2 reliable methods of contraception for at least 3 months after last study drug administration
  • Body mass index of 18.0 to 29.9 kg/m2 (inclusive) at screening
  • Systolic blood pressure 100-140 mmHg, diastolic blood pressure 50-90 mmHg, and pulse rate 50-90 bpm (inclusive), measured after 5 minutes in the supine position at screening and on Day -1
  • Healthy on the basis of physical examination, cardiovascular, ophthalmological, neurological assessments and laboratory tests

Who cannot join

  • Known hypersensitivity to ACT-709478 or drugs of the same class, or any of their excipients
  • History or clinical evidence of any disease and/or existence of any surgical or medical condition, which might interfere with the absorption, distribution, metabolism, or excretion of the study treatments
  • QT interval corrected with Fridericia's formula (QTcF) > 450 ms (using the ECG machine HR correction method) at screening and on Day -1
  • Treatment with another investigational treatment within 2 months or 5 t1/2 (whichever is the longest) prior to screening or participation in more than four investigational treatment studies within 1 year prior to screening
  • Any circumstances or conditions, which, in the opinion of the investigator, may affect full participation in the study or compliance with the protocol

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Parexel

    Berlin, 14050

Other trials in Germany

About this study

Official title: A Single-center, Double-blind, Parallel-group, Randomized, Placebo-controlled, Multiple-ascending Oral Dose Study to Investigate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of ACT-709478 in Healthy Subjects

The primary purpose of this study is to evaluate the safety and tolerability of ascending multiple doses of ACT-709478 in healthy male and female subjects

Being tested
ACT-709478, Placebo, Midazolam, ACT-709478 combined with midazolam
Keywords
tolerability, safety

What participants receive

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

  • ACT-709478Drug

    Hard gelatine capsules for oral administration

  • PlaceboDrug

    Placebo capsules matching ACT-709478 capsules

  • MidazolamDrug

    Midazolam oral solution (2 mg/mL) applied with a syringe

  • ACT-709478 combined with midazolamDrug

    Hard gelatine capsules for oral administration (ACT-709478) to be taken first followed by Midazolam oral solution (2 mg/mL) applied with a syringe

Study groups in NCT03165097
Study groupRoleWhat they receive
ACT-709478Experimental40 subjects will receive multiple doses of ACT-709478 at the planned dose levels of 30, 60, 100, and 200 mg. Each dose level will be investigated in a new cohort of 10 healthy male and female subjects (4 male subjects on active drug and 1 on placebo, 4 female subjects on active drug and 1 on placebo) undergoing one treatment period with a once daily dosing scheme.
Receives: Drug: ACT-709478
PlaceboPlacebo comparatorMatched placebo administered accordingly
Receives: Drug: Placebo
MidazolamOther4 mg taken by mouth on Day 1 of the corresponding cohort
Receives: Drug: Midazolam
ACT-709478 combined with MidazolamExperimentalOn Day 22 and Day 30, midazolam (4 mg) and ACT-709478 (60 mg or 100 mg) to be co-administered.
Receives: Drug: ACT-709478 combined with midazolam

What is being measured

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

  1. Incidence of treatment-emergent adverse events

    The percentage of subjects with treatment-emergent adverse events will be reported

    Measured: up to Day 23

  2. Changes from baseline in vital signs

    Vital signs include diastolic and systolic blood pressure and pulse rate

    Measured: up to Day 23

  3. Incidence of any clinical relevant findings in ECG variables

    The number of subjects with any treatment-emergent electrocardiogram (ECG) abnormalities will be reported

    Measured: up to Day 23

Secondary outcomes (7)
  1. Maximum plasma concentration (Cmax) of ACT-709478

    Cmax is derived from the observed plasma concentration-time curves

    Measured: up to Day 23

  2. Time to reach Cmax (tmax) of ACT-709478

    tmax is directly derived from the observed plasma concentrations

    Measured: up to Day 23

  3. Terminal half-life (t1/2) of ACT-709478

    t1/2 is calculated from the terminal rate constant obtained from the plasma concentrations-time curves

    Measured: up to Day 23

  4. Area under the plasma concentration-time curve AUC(tau) of ACT-709478

    AUCtau is defined as the area under the plasma concentration-time curve during one dosing interval

    Measured: up to Day 23

  5. Area under the plasma concentration-time curve AUC(tau) of midazolam

    AUCtau is defined as the area under the plasma concentration-time curve during one dosing interval

    Measured: 24 hours after dosing on Day 1, Day 22 and Day 30

  6. Time to reach Cmax (tmax)

    tmax is directly derived from the observed plasma concentrations

    Measured: 24 hours after dosing on Day 1, Day 22 and Day 30

  7. Maximum plasma concentration (Cmax) of ACT-709478

    Cmax is derived from the observed plasma concentration-time curves

    Measured: 24 hours after dosing on Day 1, Day 22 and Day 30

Timeline

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

  1. First posted24 May 2017
  2. Study start7 Jul 2017
  3. Primary completion15 Nov 2018
  4. Study completion28 Dec 2018

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 1
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
46 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03165097
Sponsor's protocol ID
AC-083-102
Other IDs
2017-000336-34, 2017
Status last verified
Dec 2019
First submitted
23 May 2017
Last updated
24 Dec 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Richard M, Kaufmann P, Ort M, Kornberger R, Dingemanse J. Multiple-Ascending Dose Study in Healthy Subjects to Assess the Pharmacokinetics, Tolerability, and CYP3A4 Interaction Potential of the T-Type Calcium Channel Blocker ACT-709478, A Potential New Antiepileptic Drug. CNS Drugs. 2020 Mar;34(3):311-323. doi: 10.1007/s40263-019-00697-1.

    PubMed 31994022

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing ACT-709478, Midazolam and ACT-709478 combined with midazolam in people with Healthy Subjects, run by Idorsia Pharmaceuticals Ltd. at 1 site in Germany.

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 6 inclusion and 5 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: finished, as of the sponsor's last update on 24 Dec 2019. 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 Germany. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Incidence of treatment-emergent adverse events (time frame: up to Day 23). The study lists 3 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 NCT03165097, 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 24 Dec 2019.

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