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Cryopyrin-Associated Periodic SyndromePhase 2NCT04524858

Study of ATI-450 in Patients With Cryopyrin-Associated Periodic Syndrome (CAPS)

A Phase 2 study testing ATI-450 in people with Cryopyrin-Associated Periodic Syndrome, run by Aclaris Therapeutics, Inc. at 2 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This is a Phase 2 study to investigate the safety and efficacy of ATI-450 for the Maintenance of Remission in Patients with Cryopyrin-Associated Periodic Syndrome (CAPS) Previously Managed with Anti-IL-1 Therapy. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Cryopyrin-Associated Periodic Syndrome
What is being tested?
ATI-450
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1 participants
Where
2 sitesUnited States
Study dates
23 Oct 2020to 25 Feb 2021
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

  • Diagnosis of Familial Cold Autoinflammatory Syndrome, Muckle-Wells Syndrome, or Neonatal Onset Multisystem Inflammatory Disease. Prior agreement between the Investigator and Aclaris for study eligibility is required for patients who do not have a molecular diagnosis of NALP3 mutations available (either testing not performed, or testing performed, but negative) upon study entry. For those patients who have not been molecularly tested for NALP3 mutations, molecular testing should be performed during the study.
  • Patients with a PGA score of "minimal" or less and hsCRP and SAA values within the normal range (≤10mg/L), and who are considered to have achieved that response as a result of successful anti-IL-1 therapy.
  • Continuous Treatment with anti-IL1 therapy for at least 6 months.
  • Able to understand and comply with study procedures and able to provide informed consent.
  • Male or non-pregnant, non-nursing female patients at least 18 years of age, inclusive.
  • Female patients who are of childbearing potential must use 2 methods of highly effective contraception* - one of which must be a physical barrier- for the duration of the study and for 30 days after the last dose.
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  • Male patients of childbearing potential with a female partner of childbearing potential must agree to use a condom plus another highly effective form of birth control for the duration of the study and for 90 days after the last dose.
  • Female patients must have a negative serum pregnancy test at screening and a negative urine pregnancy test prior to dosing on Day 1.
  • Willing and capable of taking appropriate Covid-19 risk mitigation precautions (e.g. wearing a mask in public, adhering to social distancing, etc.) as required by local, state, or federal guidelines during participation in the study.

Who cannot join

  • Participation in any clinical study with an investigative agent within 12 weeks prior to entry or within 5 half-lives of the investigational agent.
  • Being treated with another immuno-suppressive agent (i.e., in addition to an anti-IL-1 product) for CAPS syndrome (anti- IL-1 therapy will have been used for at least 6 months and will be stopped at study entry).
  • Use of any of the following treatments within the indicated washout period prior to the baseline visit:
  • Systemic immunosuppressant or immunomodulatory therapy (e.g., etanercept, alefacept, infliximab, methotrexate) within 16 weeks prior to Visit 2 (excluding anti- IL-1 therapy for CAPS).
  • Janus Kinase (JAK) inhibitors (systemic or topical) within 4 weeks prior to Visit 2.
  • Systemic corticosteroids within 4 weeks prior to Visit 2 (Intranasal, inhaled, and topical ocular corticosteroids are allowed).
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  • History of being immunocompromised, including a positive HIV at screening (ELISA and Western blot) test result. [Previous treatment with anti-IL1 therapy is not an exclusion]
  • A positive Hepatitis B surface antigen (HBsAg) or Hepatitis C antibody test result.
  • Live vaccinations within 3 months prior to the start of the trial, or during the trial.
  • History of recurrent and/or evidence of active bacterial, fungal, or viral infections.
  • History or evidence of active or latent tuberculosis (TB).
  • Tests performed at a central laboratory at screening that meet any of the criteria below (out of range labs may be rechecked one time, after consultation with sponsor or designee, before patient is considered a screen failure):
  • White blood cell (WBC) count <3.0×103 cells/mm3
  • Absolute neutrophil count (ANC) <1.5×103 cells/mm3
  • Lymphocyte count <0.5×103 cells/mm3
  • Platelet count <100×103 cells/mm3
  • Hemoglobin <10 g/dL
  • Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) ≥ 2×upper limit of normal (ULN)
  • Total bilirubin level >2×ULN, unless patient has been diagnosed with Gilberts' disease and this is clearly documented
  • Estimated glomerular filtration rate Estimated glomerular filtration rate (eGFR), <40 mL/min/1.73m2 based on Modification of Diet and Renal Disease formula
  • Any clinically significant laboratory abnormality that would affect interpretation of study data or safety of the patient's participation in the study, per the judgment of the investigator.
  • Patient has clinically significant abnormal findings other than CAPS from physical examination that may affect the interpretation of study data or the safety of the patient's participation in the study, per the judgment of the investigator.
  • Patient has a clinically important history of a medical disorder that would compromise patient safety or data quality, per the judgement of the investigator.
  • Blood pressure (BP) levels (in supine position after at least 5 minutes rest): <90 mmHg or >140 mmHg for systolic BP or <40 mmHg or >90 mmHg for diastolic blood pressure.
  • Patients with history of stroke.
  • Significant cardiac disease that would affect interpretation of study data or the safety of the patient's participation in the study, per the judgment of the investigator, including recent myocardial infarction or unstable angina, or heart failure with New York Heart Association Class III or IV symptoms.
  • Patients with the following screening or pre-dose ECG findings, specifically:
  • Evidence of atrial fibrillation, atrial flutter, complete right or left bundle branch block, Wolff-Parkinson-White Syndrome, or other significant rhythm disturbance
  • Evidence of acute ischemia
  • Screening or pre-dose baseline mean QTcF >450 msec for males or >470 msec for females (use of the ECG algorithm is acceptable for this purpose)
  • Personal or family history of congenital long QT syndrome or sudden death
  • Any other finding that is considered clinically significant
  • A confirmed diagnosis of Covid-19 at baseline or at any time during the study.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Aclaris Investigational Site

    San Diego, California, 92123

  • Aclaris Investigational Site

    San Francisco, California, 94116

Other trials in United States

About this study

Official title: A Phase 2a, Open-Label, Single-Arm Study to Investigate the Safety and Efficacy of ATI-450 for the Maintenance of Remission in Patients With Cryopyrin-Associated Periodic Syndrome (CAPS) Previously Managed With Anti-IL-1 Therapy

This is a Phase 2 study to investigate the safety and efficacy of ATI-450 for the Maintenance of Remission in Patients with Cryopyrin-Associated Periodic Syndrome (CAPS) Previously Managed with Anti-IL-1 Therapy.

Read the detailed description

This is a Phase 2a, Open-Label, Single-Arm Study to Investigate the Safety and Efficacy of ATI-450 for the Maintenance of Remission in Patients with Cryopyrin-Associated Periodic Syndrome (CAPS) Previously Managed with Anti-IL-1 Therapy. The study will consist of up to an 8-week screening period, a 12-week treatment period, and a 4-week safety follow-up period. The total duration of the study for patients remaining until their final follow-up assessment will be up to 24 weeks.

Being tested
ATI-450
Keywords
Cryopyrin-Associated Periodic Syndrome, CAPS
Medical subject headings
Cryopyrin-Associated Periodic Syndromes

What participants receive

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

  • ATI-450Drug

    Oral, small molecule MK2 inhibitor

Study groups in NCT04524858
Study groupRoleWhat they receive
ATI-450ExperimentalOral, small molecule MK2 inhibitor will be administered twice daily (BID) at a dose of 50 mg
Receives: Drug: ATI-450

What is being measured

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

  1. Number of Participants With Treatment-emergent Adverse Events (TEAEs)

    Measured: Baseline up to week 12

Timeline

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

  1. First posted24 Aug 2020
  2. Study start23 Oct 2020
  3. Primary completion25 Feb 2021
  4. Study completion25 Feb 2021

Why it stopped: Due to patient enrollment challenges stemming from the COVID-19 pandemic, Aclaris has decided to focus its efforts and resources on other immuno-inflammatory diseases.

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
Model description
Open-label, single-arm study
Masking
None (open label)
Enrolment
1 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04524858
Sponsor's protocol ID
ATI-450-CAPS-201
Status last verified
Aug 2023
First submitted
19 Aug 2020
Last updated
21 Sep 2023
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing ATI-450 in people with Cryopyrin-Associated Periodic Syndrome, run by Aclaris Therapeutics, Inc. at 2 sites 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 9 inclusion and 33 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: stopped early, as of the sponsor's last update on 21 Sep 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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 21 Sep 2023). 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?

Number of Participants With Treatment-emergent Adverse Events (TEAEs) (time frame: Baseline up to week 12). 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 21 Sep 2023.

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