ATI-450 Plus Methotrexate (MTX) Versus Placebo Plus MTX in Participants With Moderate to Severe Active Rheumatoid Arthritis (RA)

NCT ID: NCT05279417

Last Updated: 2024-09-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

251 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-02-01

Study Completion Date

2023-10-11

Brief Summary

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This study evaluates ATI-450 plus MTX versus placebo plus MTX in participants with moderate to severe active RA who have had an inadequate response to MTX alone.

Detailed Description

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This is a Phase 2b, randomized, multicenter, double-blind, parallel group, placebo controlled, dose ranging study to investigate the efficacy, safety, tolerability, pharmacokinetics, and pharmacodynamics of multiple doses of ATI-450 plus MTX versus placebo plus MTX in participants with moderate to severe active RA who have had an inadequate response to MTX alone.

Conditions

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Rheumatoid Arthritis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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ATI-450 20 mg BID plus Methotrexate

ATI-450 20 mg oral tablet twice daily (BID) with a stable weekly dose of methotrexate for 12 weeks

Group Type EXPERIMENTAL

Methotrexate

Intervention Type DRUG

15 mg to 25 mg weekly

ATI-450 20 mg oral tablet BID

Intervention Type DRUG

Oral, small molecule MK2 inhibitor

ATI-450 50 mg BID plus Methotrexate

ATI-450 50 mg oral tablet BID with a stable weekly dose of methotrexate for 12 weeks

Group Type EXPERIMENTAL

ATI-450 50 mg oral tablet BID

Intervention Type DRUG

Oral, small molecule MK2 inhibitor

Methotrexate

Intervention Type DRUG

15 mg to 25 mg weekly

Placebo plus Methotrexate

Placebo oral tablet BID with a stable weekly dose of methotrexate for 12 weeks

Group Type PLACEBO_COMPARATOR

Placebo oral tablet

Intervention Type DRUG

Placebo tablet manufactured to match ATI-450 in appearance

Methotrexate

Intervention Type DRUG

15 mg to 25 mg weekly

Interventions

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ATI-450 50 mg oral tablet BID

Oral, small molecule MK2 inhibitor

Intervention Type DRUG

Placebo oral tablet

Placebo tablet manufactured to match ATI-450 in appearance

Intervention Type DRUG

Methotrexate

15 mg to 25 mg weekly

Intervention Type DRUG

ATI-450 20 mg oral tablet BID

Oral, small molecule MK2 inhibitor

Intervention Type DRUG

Other Intervention Names

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zunsemetinib zunsemetinib

Eligibility Criteria

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Inclusion Criteria

* Able to comprehend and be willing to sign the Institutional Review Board (IRB)/Independent Ethics Committee (IEC) approved participant ICF prior to administration of any study-related procedures.
* Diagnosis of adult-onset RA as defined by the 2010 American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) classification criteria.
* Have active moderate to severe RA at Screening.
* A minimum of 12 weeks on MTX with a stable MTX dose.

Exclusion Criteria

* Current acute or chronic immunoinflammatory disease other than RA which may impact the course or assessment of RA.
* Uncontrolled non-immunoinflammatory disease that may place the participant at increased risk during the study or impact the interpretation of results (eg, previous malignancy, recurrent infection, previous venous thromboembolism).
* Participant has experience with \> 2 biologics, \> 1 JAK inhibitor, or a combination of 1 biologic experience and 1 JAK inhibitor.
* Currently receiving corticosteroids at doses \> 10 mg/day of prednisone (or equivalent) or have been receiving an unstable dosing regimen of corticosteroids within 2 weeks of screening.
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Aclaris Therapeutics, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Ajay Aggarwal

Role: STUDY_DIRECTOR

Aclaris Therapeutics, Inc.

Locations

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Aclaris Investigational Site

El Cajon, California, United States

Site Status

Aclaris Investigational Site

Encino, California, United States

Site Status

Aclaris Investigational Site

La Jolla, California, United States

Site Status

Aclaris Investigational Site

Palm Desert, California, United States

Site Status

Aclaris Investigational Site

Tampa, Florida, United States

Site Status

Aclaris Investigational Site

Oklahoma City, Oklahoma, United States

Site Status

Aclaris Investigational Site

Duncansville, Pennsylvania, United States

Site Status

Aclaris Investigational Site

Jackson, Tennessee, United States

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Aclaris Investigational Site

Cypress, Texas, United States

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Aclaris Investigational Site

Mesquite, Texas, United States

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Aclaris Investigational Site

San Antonio, Texas, United States

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Aclaris Investigational Site

Pleven, , Bulgaria

Site Status

Aclaris Investigational Site

Plovdiv, , Bulgaria

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Aclaris Investigational Site

Plovdiv, , Bulgaria

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Aclaris Investigational Site

Plovdiv, , Bulgaria

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Aclaris Investigational Site

Plovdiv, , Bulgaria

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Aclaris Investigational Site

Sofia, , Bulgaria

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Aclaris Investigational Site

Sofia, , Bulgaria

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Aclaris Investigational Site

Sofia, , Bulgaria

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Aclaris Investigational Site

Varna, , Bulgaria

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Aclaris Investigational Site

Brno, , Czechia

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Aclaris Investigational Site

Hlučín, , Czechia

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Aclaris Investigational Site

Ostrava, , Czechia

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Aclaris Investigational Site

Pardubice, , Czechia

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Aclaris Investigational Site

Prague, , Czechia

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Aclaris Investigational Site

Prague, , Czechia

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Aclaris Investigational Site

Uherské Hradiště, , Czechia

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Aclaris Investigational Site

Krakow, Lesser Poland Voivodeship, Poland

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Aclaris Investigational Site

Tomaszów Lubelski, Lubelski, Poland

Site Status

Aclaris Investigational Site

Lublin, Lublin Voivodeship, Poland

Site Status

Aclaris Investigational Site

Nadarzyn, Masovian Voivodeship, Poland

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Aclaris Investigational Site

Grodzisk Mazowiecki, Mzowieckie, Poland

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Aclaris Investigational Site

Bialystok, Podlaskie Voivodeship, Poland

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Aclaris Investigational Site

Katowice, Silesian Voivodeship, Poland

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Aclaris Investigational Site

Elblag, Warm.Maz., Poland

Site Status

Aclaris Investigational Site

Olsztyn, Warmińsko-Mazurskien, Poland

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Aclaris Investigational Site

Poznan, Wielkopolska, Poland

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Aclaris Investigational Site

Bialystok, , Poland

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Aclaris Investigational Site

Bialystok, , Poland

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Aclaris Investigational Site

Dąbrówka, , Poland

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Aclaris Investigational Site

Krakow, , Poland

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Aclaris Investigational Site

Lublin, , Poland

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Aclaris Investigational Site

Nowa Sól, , Poland

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Aclaris Investigational Site

Poznan, , Poland

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Aclaris Investigational Site

Poznan, , Poland

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Aclaris Investigational Site

Poznan, , Poland

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Aclaris Investigational Site

Sochaczew, , Poland

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Aclaris Investigational Site

Torun, , Poland

Site Status

Aclaris Investigational Site

Warsaw, , Poland

Site Status

Aclaris Investigational Site

Wroclaw, , Poland

Site Status

Countries

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United States Bulgaria Czechia Poland

Other Identifiers

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2021-002860-31

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

ATI-450-RA-202

Identifier Type: -

Identifier Source: org_study_id

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