Cladribine Tablets: Collaborative Study to Evaluate Impact On Central Nervous System Biomarkers in Multiple Sclerosis

Completed · Phase 4

Conditions studied: Multiple Sclerosis, Multiple Sclerosis, Relapsing-Remitting

In brief

The purpose of this study is to better understand the mechanism of action (MoA) of cladribine tablets by exploring the effect on central nervous system (CNS) and blood biomarkers relevant in the relapsing forms of multiple sclerosis (RMS; to include relapsing-remitting MS \[RRMS\] or active secondary progressive MS).

Key facts

Study ID

NCT03963375

Run by

Gregory Wu

People needed

47

Starts

2019-10-28

Expected to finish

2025-05-27

Last updated by the study team

2026-07-28

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Have a relapsing form of multiple sclerosis (RMS; to include RRMS or active secondary progressive MS)
• Are willing and able to receive at least 2 lumbar punctures
• Have an EDSS of 0 to ≤ 5.5 during the screening period
• Had at least 1 relapse or 1 gadolinium-enhancing or 1 new or enlarged T2 lesion in the last 12 months
• Have absolute lymphocyte count (ALC) within normal range of the local laboratory or assessed as normal by the investigator within the 3 week screening period and meet all other eligibility criteria for cladribine tablet treatment
• Capable of giving signed informed consent

You may not qualify if…

• Have any contraindication for lumbar puncture
• Have current malignancy
• Are infected with human immunodeficiency virus (HIV)
• Have active chronic infections (e.g. hepatitis or tuberculosis)
• Have signs or symptoms suggestive of progressive multifocal leukoencephalopathy (PML) in MRI
• Have history of hypersensitivity to cladribine or any of the excipients listed in the cladribine tablets US Prescribing Information
• Allergy or hypersensitivity to gadolinium and/or any other contraindication to perform a MRI
• Have any other comorbid conditions that preclude participation
• Have been previously treated with cladribine
• Have previously been treated with ocrelizumab, alemtuzumab, rituximab, or daclizumab
• Have received treatment with natalizumab during the last 6 months
• Are currently receiving immunosuppressive or myelosuppressive therapy, e.g., methotrexate, cyclophosphamide, cyclosporine or azathioprine, or chronic treatment with systemic corticosteroids
• Have received treatment with immunosuppressive or myelosuppressive therapy during the last 6 months
• Have received chronic treatment with systemic corticosteroids during the last 4 weeks
• Have moderate or severe hepatic impairment (Child-Pugh score >6)
• Have moderate or severe renal impairment (creatinine clearance <60 mL per minute)
• Are pregnant or unwilling or unable to use effective contraception during cladribine tablets dosing and for 6 months after the last dose in each treatment course
• Are intending to breastfeed on a cladribine tablet treatment day and/or during the 10 days after the last cladribine tablet dose.

Where it is running

• Washington University School of Medicine — St Louis, Missouri, United States
• Oklahoma Medical Research Foundation — Oklahoma City, Oklahoma, United States
• University of Pennsylvania — Philadelphia, Pennsylvania, United States
• University of Texas Southwestern Medical Center — Dallas, Texas, United States
• Medical College of Wisconsin — Milwaukee, Wisconsin, United States

Full record on ClinicalTrials.gov

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