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Healthy SubjectsPhase 1NCT02944474

A Study to Assess the Safety, Tolerability and Pharmacokinetics of Lucerastat (CDP923) After Multiple Dosing in Healthy Subjects

A Phase 1 study testing Lucerastat in people with Healthy Subjects, run by Idorsia Pharmaceuticals Ltd. at 1 site in United Kingdom.

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 objectives of this study were to evaluate the safety and tolerability of lucerastat and to determine its pharmacokinetic profile after multiple dosing. Also, the potential effect of food on the pharmacokinetics of lucerastat was explored following a single dose of 500 mg. Read more about this study

Who is it for?
Ages 18 to 45 years, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy Subjects
What is being tested?
Lucerastat
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
37 participants
Where
1 siteUnited Kingdom
Study dates
Dec 2003to May 2004
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 45 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Signed informed consent form.
  • Male subjects aged from 18 to 45 years at screening.
  • Body weight between 50 and 100 kg and body mass index (BMI) between 18.0 and 29.0 kg/m2 at screening.
  • Healthy on the basis of physical examination, cardiovascular assessments and laboratory tests.

Who cannot join

  • History or clinical evidence of any disease or medical / surgical condition or treatment, which may put the subject at risk of participation in the study or may interfere with the absorption, distribution, metabolism or excretion of the study treatments.
  • Serious adverse reaction or hypersensitivity to any drug.
  • 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.

United Kingdom1 site
  • Investigator Site

    Edinburgh, EH14 4AP

Other trials in United Kingdom

About this study

Official title: A Randomised Double-blind, Placebo-controlled, Ascending Multiple Dose Phase 1 Study of CDP923 in Healthy Volunteers to Assess Safety, Tolerability, Pharmacokinetics and Food Effect

The objectives of this study were to evaluate the safety and tolerability of lucerastat and to determine its pharmacokinetic profile after multiple dosing. Also, the potential effect of food on the pharmacokinetics of lucerastat was explored following a single dose of 500 mg.

Read the detailed description

The subjects were to be enrolled sequentially to three dose groups, starting with the lowest dose level. Subjects could participate in only one Group. Progression to an increased dose of lucerastat was permitted only after review of all data from the previous cohort suggested that it was safe to do so.

Being tested
Lucerastat, Placebo
Keywords
Pharmacokinetics, Safety

What participants receive

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

  • LucerastatDrug

    Also called OGT-923, ACT-434964, CDP923

    Capsule for oral administration containing lucerastat

  • PlaceboDrug

    Placebo capsules matching lucerastat capsules

Study groups in NCT02944474
Study groupRoleWhat they receive
Cohort 1 (200 mg)ExperimentalSix subjects received 200 mg of lucerastat twice daily for 7 consecutive days in fasting conditions
Receives: Drug: Lucerastat
Cohort 2 (500 mg)ExperimentalSix subjects received 500 mg of lucerastat as a single dose in the morning of Day 1 in fed conditions. After a 5-day washout, they received the same dose twice daily for 7 consecutive days in fasting conditions
Receives: Drug: Lucerastat
Cohort 3 (500 mg)ExperimentalSix subjects received 500 mg of lucerastat twice daily for 7 consecutive days in fasting conditions
Receives: Drug: Lucerastat
Cohort 4 (1000 mg)ExperimentalSix subjects received 1 g of lucerastat for 7 consecutive days in fasting conditions
Receives: Drug: Lucerastat
Placebo cohorts 1 to 4Placebo comparatorTwelve subjects received matched placebo (3 subjects per cohort, except for Cohort 3 where 4 subjects received placebo)
Receives: Drug: Placebo

What is being measured

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

  1. Dose proportionality in lucerastat pharmacokinetics assessed by maximum plasma concentration (Cmax)

    Cmax was used to assess dose proportionality across all dose groups

    Measured: PK blood samples were collected on Day 7, at pre-dose and at scheduled time points up to 48 hours after the morning dose

  2. Dose proportionality in lucerastat pharmacokinetics assessed by area under the concentration-time curve (AUC)

    AUC from time zero to infinity [AUC(0-inf)] was used to assess dose proportionality across all dose groups

    Measured: PK blood samples were collected on Day 7, at pre-dose and at scheduled time points up to 48 hours after the morning dose on Day 7

  3. Terminal elimination half-life (t1/2)

    t1/2 was calculated from the plasma concentrations-time curves of lucerastat after multiple doses

    Measured: PK blood samples were collected on Day 7, at pre-dose and at scheduled time points up to 48 hours after the morning dose on Day 7

  4. Food effect on lucerastat pharmacokinetics assessed by Cmax

    Potential food effect on pharmacokinetic parameters of lucerastat was tested by comparing Cmax in fed vs fasted state in the 500 mg cohort (cohort 2)

    Measured: PK blood samples were collected on Day 1, at pre-dose and at scheduled time points up to 12 hours after the morning dose

  5. Food effect on lucerastat pharmacokinetics assessed by AUC

    Potential food effect on pharmacokinetic parameters of lucerastat was tested by comparing AUC in fed versus fasted state in the 500 mg cohort (cohort 2)

    Measured: PK blood samples were collected on Day 1, at pre-dose and at scheduled time points up to 12 hours after the morning dose

  6. Number of participants with adverse events (AEs)

    An AE was defined as any untoward medical occurrence in a clinical investigation subject, which did not necessarily have a causal relationship with the treatment

    Measured: From baseline up to Day 14 (end of study)

  7. Change from baseline in haematology after multiple doses of lucerastat

    Measured: Up to Day 9

  8. Change from baseline in clinical chemistry after multiple doses of lucerastat

    Measured: Up to Day 9

  9. Change from baseline in heart rate after multiple doses of lucerastat

    Measured: Up to Day 9

Secondary outcomes (7)
  1. Change from baseline in haematology after a single dose of lucerastat

    Measured: At 24 hours post dose

  2. Change from baseline in clinical chemistry after a single dose of lucerastat

    Measured: At 24 hours post dose

  3. Change from baseline in heart rate after a single dose of lucerastat

    Measured: At 24 hours post dose

  4. Change from baseline in blood pressure after a single dose of lucerastat

    Measured: Up to 24 hours post dose

  5. Change from baseline in electrocardiogram (ECG) variables after a single dose of lucerastat

    Measured: Up to 24 hours post dose

  6. Stool frequency after multiple doses of lucerastat

    Measured: Every day up to Day 9

  7. Change from baseline in body weight after multiple doses of lucerastat

    Measured: At Day 9

Timeline

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

  1. First posted26 Oct 2016 (estimated)
  2. Study startDec 2003
  3. Primary completionMay 2004
  4. Study completionMay 2004

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
37 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02944474
Sponsor's protocol ID
CDP923-002
Status last verified
Apr 2025
First submitted
24 Oct 2016
Last updated
2 May 2025
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Publications

  • Guerard N, Morand O, Dingemanse J. Lucerastat, an iminosugar with potential as substrate reduction therapy for glycolipid storage disorders: safety, tolerability, and pharmacokinetics in healthy subjects. Orphanet J Rare Dis. 2017 Jan 14;12(1):9. doi: 10.1186/s13023-017-0565-9.

    PubMed 28088251

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Lucerastat in people with Healthy Subjects, run by Idorsia Pharmaceuticals Ltd. at 1 site in United Kingdom.

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 4 inclusion and 3 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 2 May 2025. 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 United Kingdom. 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?

Dose proportionality in lucerastat pharmacokinetics assessed by maximum plasma concentration (Cmax) (time frame: PK blood samples were collected on Day 7, at pre-dose and at scheduled time points up to 48 hours after the morning dose). The study lists 9 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 NCT02944474, 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 2 May 2025.

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