AdrenomyeloneuropathyPhase 2NCT05146284
Study to Assess PXL770 in Subjects With Adrenomyeloneuropathy (AMN) Form of X-linked Adrenoleukodystrophy (X-ALD or ALD)
A Phase 2 study testing PXL770 in people with Adrenomyeloneuropathy, run by Poxel SA.
Trial summary
A randomized open-label Phase 2a study to assess the pharmacokinetics and pharmacodynamic parameters of PXL770 after 12 weeks of treatment in male subjects with adrenomyeloneuropathy (AMN). Read more about this study
- Who is it for?
- Ages 18 to 65 years, men only
- Conditions the study is for
- Adrenomyeloneuropathy
- What is being tested?
- PXL770
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 0 participants
- Where
- No sites listed yet
- Study dates
- Sep 2023to Sep 2024
- Phase
- Phase 2
- 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 65 years
- Men only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Male subjects with either a confirmed diagnosis of AMN by genetic testing (mutation in the ATP binding cassette subfamily D (ABCD1 gene)) or a family history of X-linked adrenoleukodystrophy (ALD) together with an elevation in VLCFA obtained from overnight fasting plasma sample at Screening Visit (V1).
- Age: ≥ 18 to ≤ 65 years at informed consent signature.
- Normal brain magnetic resonance imaging (MRI) or brain MRI showing non-specific abnormalities that can be observed in AMN subjects without signs of cerebral form of ALD (C-ALD). MRI must be performed within 6 months prior to V2. If there is no available brain MRI within this period, a brain MRI must be performed before V2.
Who cannot join
- Any progressive neurological disease other than AMN.
- Arrested or progressing C-ALD as defined by cerebral lesions (except for non-specific abnormalities that can be observed in AMN subjects).
- Prior receipt of an allogeneic hematopoietic stem cell transplant or gene therapy.
About this study
Official title: A Randomized Open-label Phase 2a Study to Assess PXL770 After 12 Weeks of Treatment in Male Subjects With Adrenomyeloneuropathy (AMN) Form of X-linked Adrenoleukodystrophy (X-ALD or ALD)
A randomized open-label Phase 2a study to assess the pharmacokinetics and pharmacodynamic parameters of PXL770 after 12 weeks of treatment in male subjects with adrenomyeloneuropathy (AMN).
Read the detailed description
A randomized open-label Phase 2a study to assess the pharmacokinetics and pharmacodynamic parameters of PXL770 after 12 weeks of treatment in male subjects with adrenomyeloneuropathy (AMN).
There are 3 study periods.
- Screening Visit: within a maximum of 4 weeks prior to the open-label Treatment Period
- Open-label Treatment Period: 12 weeks
- Follow-up Period: 2 weeks after the last intake of the treatment
During the treatment period, VLCFA will be assessed every 4 weeks, to evaluate the kinetics of the effect. NfL will be assessed after 8 and 12 weeks of treatment, and other exploratory biomarkers after 12 weeks of treatment. A follow up period will allow monitoring the subjects' safety as well as the duration of the effect on the 2 main biomarkers (VLCFA and NfL) at 2 and 4 weeks after the drug withdrawal.
- Conditions
- Adrenomyeloneuropathy
- Being tested
- PXL770
- Medical subject headings
- Adrenoleukodystrophy
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PXL770Drug
Tablet
| Study group | Role | What they receive |
|---|---|---|
| PXL770 500 mg QD | Experimental | Not described Receives: Drug: PXL770 |
| PXL770 250 mg BID | Experimental | Not described Receives: Drug: PXL770 |
What is being measured
The primary outcome is the main question the study is designed to answer.
Pharmacokinetic (PK) parameters
Peak plasma concentration (Cmax) for 500mg QD
Measured: 4 week
Pk parameters
Area under the plasma concentration versus time curve (AUC)0-24 for 500mg QD
Measured: 4 week
PK parameters
Cmax for 250mg BID
Measured: 4 week
PK parameters
AUC0-8 for 250mg BID
Measured: 4 week
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Dec 2021
- Study startSep 2023 (estimated)
- Primary completionSep 2024 (estimated)
- Study completionSep 2024 (estimated)
Why it stopped: Lack of funding to initiate the study
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for AdrenomyeloneuropathyStudies of the same condition, open and under way.
- 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 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 0 participants (actual)
Sponsor and investigators
- Lead sponsor
- Poxel SA
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05146284
- Sponsor's protocol ID
- PXL770-011
- Status last verified
- Dec 2024
- First submitted
- 16 Nov 2021
- Last updated
- 16 Dec 2024
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No: There is no plan to share IPD with other researchers
Study at a glance
From the registry record, last updated by the sponsor on 16 Dec 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized Open-label Phase 2a Study to Assess PXL770 After 12 Weeks of Treatment in Male Subjects With Adrenomyeloneuropathy (AMN) Form of X-linked Adrenoleukodystrophy (X-ALD or ALD)
- ClinicalTrials.gov ID
- NCT05146284
- Acronym / sponsor ID
- PXL770-011
- Conditions
- Adrenomyeloneuropathy
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- WithdrawnReason stopped: Lack of funding to initiate the study
- Enrolment
- 0 participants (actual)
- Lead sponsor
- Poxel SAIndustry (pharma, biotech, devices)
- Study start
- Sep 2023 (estimated)
- Primary completion
- Sep 2024 (estimated)
- Study completion
- Sep 2024 (estimated)
- First posted
- 6 Dec 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
A randomized open-label Phase 2a study to assess the pharmacokinetics and pharmacodynamic parameters of PXL770 after 12 weeks of treatment in male subjects with adrenomyeloneuropathy (AMN).
Detailed description
A randomized open-label Phase 2a study to assess the pharmacokinetics and pharmacodynamic parameters of PXL770 after 12 weeks of treatment in male subjects with adrenomyeloneuropathy (AMN).
There are 3 study periods.
- Screening Visit: within a maximum of 4 weeks prior to the open-label Treatment Period
- Open-label Treatment Period: 12 weeks
- Follow-up Period: 2 weeks after the last intake of the treatment
During the treatment period, VLCFA will be assessed every 4 weeks, to evaluate the kinetics of the effect. NfL will be assessed after 8 and 12 weeks of treatment, and other exploratory biomarkers after 12 weeks of treatment. A follow up period will allow monitoring the subjects' safety as well as the duration of the effect on the 2 main biomarkers (VLCFA and NfL) at 2 and 4 weeks after the drug withdrawal.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| PXL770 500 mg QD | Experimental | Drug: PXL770 |
| PXL770 250 mg BID | Experimental | Drug: PXL770 |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Male subjects with either a confirmed diagnosis of AMN by genetic testing (mutation in the ATP binding cassette subfamily D (ABCD1 gene)) or a family history of X-linked adrenoleukodystrophy (ALD) together with an elevation in VLCFA obtained from overnight fasting plasma sample at Screening Visit (V1).
- Age: ≥ 18 to ≤ 65 years at informed consent signature.
- Normal brain magnetic resonance imaging (MRI) or brain MRI showing non-specific abnormalities that can be observed in AMN subjects without signs of cerebral form of ALD (C-ALD). MRI must be performed within 6 months prior to V2. If there is no available brain MRI within this period, a brain MRI must be performed before V2.
Key exclusion criteria (3 listed)
- Any progressive neurological disease other than AMN.
- Arrested or progressing C-ALD as defined by cerebral lesions (except for non-specific abnormalities that can be observed in AMN subjects).
- Prior receipt of an allogeneic hematopoietic stem cell transplant or gene therapy.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| PXL770Tablet | Drug | PXL770 250 mg BID, PXL770 500 mg QD |
Primary outcome
Pharmacokinetic (PK) parameters
Time frame: 4 week
Peak plasma concentration (Cmax) for 500mg QD
Pk parameters
Time frame: 4 week
Area under the plasma concentration versus time curve (AUC)0-24 for 500mg QD
PK parameters
Time frame: 4 week
Cmax for 250mg BID
PK parameters
Time frame: 4 week
AUC0-8 for 250mg BID
Results and safety
The study was withdrawn before enrolling participants, so there are no results.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Dec 2024.
- Individual participant dataSharing planned: No. There is no plan to share IPD with other researchers
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing PXL770 in people with Adrenomyeloneuropathy, run by Poxel SA.
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 3 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: withdrawn, as of the sponsor's last update on 16 Dec 2024. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
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 was withdrawn before enrolling participants, so there are no results.
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?
Pharmacokinetic (PK) parameters (time frame: 4 week). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 16 Dec 2024.