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Plaque PsoriasisPhase 2NCT04908514

A Clinical Trial to Evaluate the Safety, Tolerability, and Efficacy of Subjects With Plaque Psoriasis

A Phase 2 study testing ADX-629 in people with Plaque Psoriasis, run by Aldeyra Therapeutics, Inc. at 1 site in United States.

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

A Multi-Center, Open-Label, Phase 2 Clinical Trial to Evaluate the Safety, Tolerability, and Efficacy of ADX-629 Administered Orally to Subjects with Plaque Psoriasis Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Plaque Psoriasis
What is being tested?
ADX-629
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10 participants
Where
1 siteUnited States
Study dates
7 May 2021to 21 Jan 2022
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subject is a male or non-pregnant female 18 years of age or older.
  • Subject has provided written informed consent.
  • Females must be post-menopausal, surgically sterile, or use a highly effective method of birth control during the trial and for 30 days after the last administration of test article. Women of childbearing potential (WOCBP) must have a negative urine pregnancy test (UPT) at Visit 1/Screening and Visit 2/Baseline.
  • Male subjects who are not surgically sterile (e.g., vasectomy performed at least 6 months prior to trial entry) and are sexually active with a female partner who is of childbearing potential must agree to use an effective form of birth control for the duration of the trial and for 90 days after completion of treatment.
  • Subject, in the investigator's opinion, is in good general health and free of any disease state or physical condition that might impair evaluation of plaque psoriasis or exposes the subject to an unacceptable risk by trial participation.

Who cannot join

  • Subject is pregnant, lactating, or is planning to become pregnant during the trial.
  • Subject has a physical condition which, in the investigator's opinion, might impair evaluation of plaque psoriasis or which exposes the subject to an unacceptable risk by trial participation.
  • Subject is currently enrolled in an investigational drug, biologic, or device trial.
  • Subject has used an investigational drug, investigational biologic, or investigational device treatment within 30 days prior to Visit 2/Baseline.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • TCR Medical Corporation

    San Diego, California, 92123

Other trials in United States

About this study

Official title: A Multi-Center, Open-Label, Phase 2 Clinical Trial to Evaluate the Safety, Tolerability, and Efficacy of ADX-629 Administered Orally to Subjects With Plaque Psoriasis

A Multi-Center, Open-Label, Phase 2 Clinical Trial to Evaluate the Safety, Tolerability, and Efficacy of ADX-629 Administered Orally to Subjects with Plaque Psoriasis

Being tested
ADX-629

What participants receive

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

  • ADX-629Drug

    ADX-629 administered orally twice daily (BID) for approximately 12 weeks.

Study groups in NCT04908514
Study groupRoleWhat they receive
ADX-629 250 mg administered orally twice daily (BID) for approximately 12 weeks.ExperimentalNot described
Receives: Drug: ADX-629

What is being measured

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

  1. Change From Baseline in the Psoriasis Area and Severity Index (PASI)

    The change from baseline for PASI score was assessed on a 0 to 72 scale (0 = none, 72 = maximum severity). Mixed model for repeated measures (MMRM) analysis was performed using change from baseline as the dependent variable, baseline as a covariate, and visit as a factor.

    Measured: The efficacy assessment period was baseline, Week 4, Week 8, and Week 12. Baseline was the day prior to randomization.

Secondary outcomes (3)
  1. Number of Subjects With a ≥ 50% Reduction Change From Baseline for PASI Score

    The number of subjects with a ≥ 50% reduction change from baseline for PASI score at Week 12 (end of treatment) was assessed on a 0 to 72 scale (0 = none, 72 = maximum severity). MMRM analysis was performed using change from baseline as the dependent variable, baseline as a covariate, and visit as a factor.

    Measured: The efficacy assessment period was Week 1 - Week 12. Baseline was the day prior to randomization.

  2. Number of Subjects With a ≥ 75% Reduction Change From Baseline for PASI Score

    The number of subjects with a ≥ 75% reduction change from baseline for PASI score at Week 12 (end of treatment) was assessed on a 0 to 72 scale (0 = none, 72 = maximum severity). MMRM analysis was performed using change from baseline as the dependent variable, baseline as a covariate, and visit as a factor.

    Measured: The efficacy assessment period was Week 1 - Week 12. Baseline was Day 1 prior to randomization.

  3. Change From Baseline in the Investigator's Global Assessment (IGA)

    The change from baseline for IGA score is based on a five-point scale ranging from 0 to 4 (0 = clear, 4 = severe). MMRM analysis was performed using change from baseline as the dependent variable, baseline as a covariate, and visit as a factor.

    Measured: The efficacy assessment period was baseline, Week 4, Week 8, and Week 12. Baseline was the day prior to randomization.

Timeline

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

  1. First posted1 Jun 2021
  2. Study start7 May 2021
  3. Primary completion21 Jan 2022
  4. Study completion21 Jan 2022

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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04908514
Sponsor's protocol ID
ADX-629-PS-001
Status last verified
Jan 2023
First submitted
26 May 2021
Last updated
11 Mar 2025
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing ADX-629 in people with Plaque Psoriasis, run by Aldeyra Therapeutics, Inc. at 1 site in United States.

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 5 inclusion and 4 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 11 Mar 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 States. 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. 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?

Yes. Results are posted in the registry (first posted 11 Mar 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Change From Baseline in the Psoriasis Area and Severity Index (PASI) (time frame: The efficacy assessment period was baseline, Week 4, Week 8, and Week 12. Baseline was the day prior to randomization.). 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 11 Mar 2025.

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