A Clinical Study of Tulisokibart (MK-7240) to Treat Radiographic Axial Spondyloarthritis (MK-7240-013)

Purpose

Researchers are looking for new ways to treat radiographic axial spondyloarthritis (r-axSpA). R-axSpA is a type of arthritis that causes pain, stiffness, and inflammation (swelling) in the spine and joints in the pelvis (hip bone). Radiographic means the damage it causes can be seen on X-rays. This study will help find out if a study medicine called tulisokibart can treat symptoms of r-axSpA. Researchers will look at different doses of tulisokibart. Researchers want to know if at least one of the study doses of tulisokibart works better than a placebo to improve r-axSpA symptoms. A placebo looks like the study medicine but has no study medicine in it. Using a placebo helps researchers better understand the effects of the study medicine.

Condition

  • Radiographic Axial Spondyloarthritis

Eligibility

Eligible Ages
Between 18 Years and 80 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

The main inclusion criteria include but are not limited to the following: - Has a clinical diagnosis of axial spondyloarthritis (axSpA) and meets the Assessment of SpondyloArthritis international Society (ASAS) classification criteria for axSpA including ≥3 months of back pain with age at symptom onset <45 years - Meets the radiographic criterion of the modified New York criteria for ankylosing spondylitis (AS) as determined by central reading at Screening - Has active disease at Screening and Randomization - Has a history of inadequate response (IR)/intolerance to nonsteroidal anti-inflammatory drugs (NSAIDs) and is biologic disease-modifying antirheumatic drug (bDMARD)-naive, or has a history of IR/intolerance to up to a maximum of 2 bDMARD classes

Exclusion Criteria

The main exclusion criteria include but are not limited to the following: - Has any arthritis with onset before age 17 years or current diagnosis of inflammatory joint disease other than radiographic axial spondyloarthritis (r-axSpA) (such as, but not limited to, rheumatoid arthritis, systemic lupus erythematosus, psoriatic arthritis (PsA), systemic sclerosis, myositis, etc.), or any other conditions that may, in the judgment of the investigator, interfere with the assessment of r-axSpA - Has a history of cancer (except fully treated non-melanoma skin cancers or cervical carcinoma in situ after complete surgical removal) within the last 5 years - Has any active infection - Has known allergies, hypersensitivity, or intolerance to tulisokibart or its excipients

Study Design

Phase
Phase 2
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
Triple (Participant, Care Provider, Investigator)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
High-dose tulisokibart
Participants receive a high dose of tulisokibart.
  • Drug: Tulisokibart
    Subcutaneous (SC) administration
    Other names:
    • MK-7240
    • PRA023
Experimental
Medium-dose tulisokibart
Participants receive a medium dose of tulisokibart.
  • Drug: Tulisokibart
    Subcutaneous (SC) administration
    Other names:
    • MK-7240
    • PRA023
Experimental
Low-dose tulisokibart
Participants receive a low dose of tulisokibart and are rerandomized at week 16 to a medium or high dose of tulisokibart.
  • Drug: Tulisokibart
    Subcutaneous (SC) administration
    Other names:
    • MK-7240
    • PRA023
Placebo Comparator
Placebo
Participants receive a matched placebo dose and are rerandomized at week 16 to a medium or high dose of tulisokibart.
  • Drug: Placebo
    SC administration

Recruiting Locations

AARA Clinical Research - Arizona Arthritis & Rheumatology Associates - Chandler ( Site 0036)
Chandler, Arizona 85225
Contact:
Study Coordinator
480-443-8400

AARA Clinical Research - Arizona Arthritis & Rheumatology Associates - Flagstaff ( Site 0021)
Flagstaff, Arizona 86001
Contact:
Study Coordinator
480-443-8400

Arizona Arthritis & Rheumatology Associates, P.C. - Gilbert ( Site 0022)
Gilbert, Arizona 85297
Contact:
Study Coordinator
480-443-8400

AARA Arizona Arthritis & Rheumatology Associates, P.C. - Glendale ( Site 0056)
Glendale, Arizona 85306
Contact:
Study Coordinator
480-443-8400

Arizona Arthritis & Rheumatology Associates, P.C. - Tucson ( Site 0025)
Tucson, Arizona 85704-1140
Contact:
Study Coordinator
480-443-8400

TriWest Research Associates - Chula Vista ( Site 0013)
Chula Vista, California 91910
Contact:
Study Coordinator
619-334-4735

Providence Medical Foundation ( Site 0049)
Fullerton, California 92835
Contact:
Study Coordinator
714-626-8610

Newport Huntington Medical Group ( Site 0005)
Huntington Beach, California 92648
Contact:
Study Coordinator
714-378-2440

Cohen Medical Centers ( Site 0034)
Thousand Oaks, California 91360-3967
Contact:
Study Coordinator
713-487-8680

Inland Rheumatology Clinical Trials, Inc. ( Site 0002)
Upland, California 91786
Contact:
Study Coordinator
909-296-8700

Arthritis and Rheumatic Disease Specialties ( Site 0016)
Aventura, Florida 33180
Contact:
Study Coordinator
305-932-4295

Bay Area Arthritis and Osteoporosis ( Site 0041)
Brandon, Florida 33511
Contact:
Study Coordinator
813-651-4441 Ext 243

GNP Research - Hollywood ( Site 0020)
Cooper City, Florida 33024
Contact:
Study Coordinator
754-248-3589

Innovation Medical Research Center ( Site 0012)
Palmetto Bay, Florida 33157
Contact:
Study Coordinator
305-300-2695

Chicago Arthritis & Regenerative Medicine ( Site 0042)
Chicago, Illinois 60661
Contact:
Study Coordinator
480-443-8400

Willow Rheumatology and Wellness, PLLC ( Site 0035)
Willowbrook, Illinois 60527
Contact:
Study Coordinator
630-537-1313

Arthritis and Rheumatism Associates - Rockville ( Site 0019)
Rockville, Maryland 20850
Contact:
Study Coordinator
301-942-7600

Kansas City Physician Partners ( Site 0027)
Kansas City, Missouri 64111
Contact:
Study Coordinator
816-384-2827

Velocity Clinical Research - West County Rheumatology, St. Louis ( Site 0038)
St Louis, Missouri 63131
Contact:
Study Coordinator
947-744-6010

Physician Research Collaboration, LLC ( Site 0057)
Lincoln, Nebraska 68516-5497
Contact:
Study Coordinator
402-420-3442

Inspire Santa Fe Medical Group ( Site 0011)
Santa Fe, New Mexico 87505
Contact:
Study Coordinator
505-490-5984

Altoona Center for Clinical Research ( Site 0004)
Duncansville, Pennsylvania 16635
Contact:
Study Coordinator
814-693-0300

Perelman Center for Advanced Medicine ( Site 0060)
Philadelphia, Pennsylvania 19104
Contact:
Study Coordinator
215-662-2454

AARA Clinical Research - Murfreesboro Medical Clinic ( Site 0029)
Murfreesboro, Tennessee 37128
Contact:
Study Coordinator
615-236-2504

Rheumatology Associates ( Site 0055)
Arlington, Texas 76012
Contact:
Study Coordinator
214-540-0700

Arthritis Care of Texas ( Site 0048)
Corpus Christi, Texas 78415
Contact:
Study Coordinator
361-400-7700

Lone Star Arthritis & Rheumatology Associates, P.C. ( Site 0028)
Fort Worth, Texas 76109
Contact:
Study Coordinator
301-942-7600

Provecta Research Network LLC ( Site 0054)
Houston, Texas 77027
Contact:
Study Coordinator
346-735-8990

AARA Clinical Research - Lone Star Arthritis and Rheumatology Associates - Irving ( Site 0032)
Irving, Texas 75039
Contact:
Study Coordinator
301-942-7600

Epic Medical Research ( Site 0061)
Red Oak, Texas 75154
Contact:
Study Coordinator
972-777-6956

Advanced Rheumatology of Houston ( Site 0001)
The Woodlands, Texas 77382
Contact:
Study Coordinator
936-681-4882

DM Clinical Research - TRA ( Site 0010)
Tomball, Texas 77375
Contact:
Study Coordinator
346-550-9559

More Details

Status
Recruiting
Sponsor
Merck Sharp & Dohme LLC

Study Contact

Toll Free Number
1-888-577-8839
Trialsites@msd.com

Detailed Description

This study consists of a 16-week Placebo-controlled Period and a 124-week Long-term Extension (LTE), which is composed of a 40-week Main Extension and an 84-week Optional Extension.