Relapsing Multiple SclerosisPhase 2NCT03889639
Dose-finding Study for SAR442168 in Relapsing Multiple Sclerosis
A Phase 2 study testing SAR442168 and Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI) in people with Relapsing Multiple Sclerosis, run by Sanofi at 48 sites in 10 countries.
Trial summary
Primary Objective: To determine the dose-response relationship for SAR442168 to reduce the number of new active brain lesions. Secondary Objectives: To evaluate efficacy of SAR442168 on disease activity as assessed by imaging measures. To evaluate the safety and tolerability of SAR442168. Read more about this study
- Who is it for?
- Ages 18 to 55 years
- Conditions the study is for
- Relapsing Multiple Sclerosis
- What is being tested?
- SAR442168 and Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI)
- Type of treatment
- Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 130 participants
- Where
- 48 sitesin 10 countries
- Study dates
- 29 Mar 2019to 2 Jan 2020
- 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 to 55 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- Participant must be 18 to 55 years of age, inclusive, at the time of signing the informed consent.
- Participant was diagnosed with relapsing multiple sclerosis (RMS) according to the 2017 revision of the McDonald diagnostic criteria.
- Participant must had at least 1 documented relapse within the previous year, OR greater than or equal to (>=) 2 documented relapses within the previous 2 years, OR >=1 active Gadolinium (Gd) enhancing brain lesion on an MRI scan in the past 6 months and prior to screening.
- A female participant must had used a double contraception method including a highly effective method of birth control from inclusion and up to 2 months after the last study dose, except if she had undergone sterilization at least 3 months earlier or was postmenopausal. Menopause was defined as being amenorrheic for >=12 months with serum follicle-stimulating hormone (FSH) level greater than (>) 30 International Units per liters.
- Male participants, whose partners were of childbearing potential (including breastfeeding women), must had accepted to use, during sexual intercourse, a double contraceptive method according to the following algorithm: (condom) plus (intrauterine device or hormonal contraceptive) from inclusion up to 3 months after the last dose.
- Male participants whose partners were pregnant must had used, during sexual intercourse, a condom from inclusion up to 3 months after the last dose.
- Male participants had agreed not to donate sperm from the inclusion up to 3 months after the last dose.
- Participant had given written informed consent prior to undertaking any study-related procedure.
Who cannot join
- The participant had been diagnosed with primary progressive multiple sclerosis according to the 2017 revision of the McDonald diagnostic criteria or with non relapsing secondary progressive multiple sclerosis.
- Requirement for concomitant treatment that could bias the primary evaluation.
- Contraindication for MRI.
- Contraindications to use MRI Gd contrast-enhancing preparations.
- History of infection with the human immunodeficiency virus (HIV).
- History of active or latent tuberculosis.
Show all 21Show fewer
- Any other active infections that would adversely affect participation or investigational medicinal product administration in this study, as judged by the Investigator.
- Presence of any screening laboratory or electrocardiogram values outside normal limits that were considered in the Investigator's judgment to be clinically significant.
- Presence of liver injury.
- At screening, the participant was positive for hepatitis B surface antigen and/or hepatitis B core antibody and/or was positive for hepatitis C antibody.
- Bleeding disorder or known platelet dysfunction at any time prior to screening visit.
- Participant had received any live (attenuated) vaccine (including but not limited to varicella zoster, oral polio, and nasal influenza) within 2 months before first treatment visit.
- Participant was receiving strong inducers or inhibitors of cytochrome P450 3A (CYP3A) or CYP2C8 hepatic enzymes.
- Participant was receiving anticoagulant/antiplatelet therapies.
- Participant had taken other investigational drugs within 3 months or 5 half lives, whichever was longer, before screening visit.
- Participant had an Expanded Disability Status Scale score >5.5 at first screening visit.
- Participant had a relapse in the 30 days prior to randomization.
- Participant was pregnant or a breastfeeding woman.
- History or presence of significant other concomitant illness.
- The participant had received medications/treatments for multiple sclerosis within a specified time frame.
- The above information was not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.
Trial locations and contacts
48 sites in 10 countries.
48 sites in 10 countries
United States9 sites
Investigational Site Number 8400005
Cullman, Alabama, 35058
Investigational Site Number 8400008
Dayton, Ohio, 45417
Investigational Site Number 8400003
Knoxville, Tennessee, 37922
Investigational Site Number 8400002
Maitland, Florida, 32761
Investigational Site Number 8400001
Northbrook, Illinois, 60062
Investigational Site Number 8400007
Savannah, Georgia, 31406
Investigational Site Number 8400004
Sunrise, Florida, 33351
Investigational Site Number 8400009
Tampa, Florida, 33612
Investigational Site Number 8400006
Westerville, Ohio, 43081
Czechia7 sites
Investigational Site Number 2030007
Brno, 62500
Investigational Site Number 2030004
Hradec Králové, 50005
Investigational Site Number 2030003
Jihlava, 58633
Investigational Site Number 2030005
Ostrava - Poruba, 70852
Investigational Site Number 2030006
Pardubice, 53203
Investigational Site Number 2030001
Prague, 12808
Investigational Site Number 2030002
Praha 5 - Motol, 15006
Russia7 sites
Investigational Site Number 6430006
Kazan', 420021
Investigational Site Number 6430003
Moscow, 125367
Investigational Site Number 6430002
Moscow, 127015
Investigational Site Number 6430005
Saint Petersburg, 194044
Investigational Site Number 6430004
Saint Petersburg, 197022
Investigational Site Number 6430001
Saint Petersburg, 197110
Investigational Site Number 6430007
Tyumen, 625000
Ukraine7 sites
Investigational Site Number 8040002
Chernivtsi, 58018
Investigational Site Number 8040005
Dnipro, 49005
Investigational Site Number 8040001
Lviv, 79010
Investigational Site Number 8040006
Lviv, 79013
Investigational Site Number 8040009
Odesa, 65025
Investigational Site Number 8040003
Vinnytsia, 21005
Investigational Site Number 8040007
Zhytomyr, 10002
Spain6 sites
Investigational Site Number 7240006
Barakaldo, 48903
Investigational Site Number 7240002
Barcelona, 08035
Investigational Site Number 7240001
Madrid, 28007
Investigational Site Number 7240004
Murcia, 30120
Investigational Site Number 7240005
Salt, 17190
Investigational Site Number 7240003
Seville, 41071
France4 sites
Investigational Site Number 2500004
Nancy, 54035
Investigational Site Number 2500001
Nantes, 44093
Investigational Site Number 2500002
Strasbourg, 67098
Investigational Site Number 2500003
Toulouse, 31059
Canada3 sites
Investigational Site Number 1240002
Gatineau, J8Y 1W2
Investigational Site Number 1240001
Greenfield Park, J4V 2J2
Investigational Site Number 1240003
Vancouver, V6T 2B5
Netherlands2 sites
Investigational Site Number 5280001
Amsterdam, 1081 HV
Investigational Site Number 5280002
Sittard-Geleen, 6162 BG
Slovakia2 sites
Investigational Site Number 7030001
Bratislava, 82606
Investigational Site Number 7030002
Martin, 03659
About this study
Official title: A Phase 2b Dose-finding Study for SAR442168, a Bruton's Tyrosine Kinase Inhibitor, in Participants With Relapsing Multiple Sclerosis
Primary Objective:
To determine the dose-response relationship for SAR442168 to reduce the number of new active brain lesions.
Secondary Objectives:
- To evaluate efficacy of SAR442168 on disease activity as assessed by imaging measures.
- To evaluate the safety and tolerability of SAR442168.
Read the detailed description
The total study duration was 24 weeks which included a screening period of 4 weeks, a treatment period of 16 weeks, and a follow-up period of up to 4 weeks. Participants who completed the Week 16 visit were proposed to be enrolled in a long-term extension safety and efficacy study to assess safety, tolerability and efficacy of SAR442168.
- Conditions
- Relapsing Multiple Sclerosis
- Being tested
- SAR442168, Placebo, Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI)
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
SAR442168Drug
Pharmaceutical form: Film coated tablet; Route of administration: Oral
PlaceboDrug
Pharmaceutical form: Film coated tablet; Route of administration: Oral
Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI)Drug
Pharmaceutical form: Solution for injection; Route of administration: Intravenous
| Study group | Role | What they receive |
|---|---|---|
| Cohort 1: SAR442168 5 mg Then Placebo | Experimental | Participants received SAR442168 5 milligrams (mg), orally once daily for first 12 weeks then crossed over to matching placebo orally once daily for 4 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. Receives: Drug: SAR442168; Drug: Placebo; Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI) |
| Cohort 1: SAR442168 15 mg Then Placebo | Experimental | Participants received SAR442168 15 mg, orally once daily for first 12 weeks then crossed over to matching placebo orally once daily for 4 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. Receives: Drug: SAR442168; Drug: Placebo; Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI) |
| Cohort 1: SAR442168 30 mg Then Placebo | Experimental | Participants received SAR442168 30 mg, orally once daily for first 12 weeks then crossed over to matching placebo orally once daily for 4 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. Receives: Drug: SAR442168; Drug: Placebo; Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI) |
| Cohort 1: SAR442168 60 mg Then Placebo | Experimental | Participants received SAR442168 60 mg, orally once daily for first 12 weeks then crossed over to matching placebo orally once daily for 4 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. Receives: Drug: SAR442168; Drug: Placebo; Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI) |
| Cohort 2: Placebo Then SAR442168 5 mg | Experimental | Participants received placebo matching to SAR442168 tablets, orally once daily for first 4 weeks then crossed over to SAR442168 5 mg orally once daily for 12 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. Receives: Drug: SAR442168; Drug: Placebo; Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI) |
| Cohort 2: Placebo Then SAR442168 15 mg | Experimental | Participants received placebo matching to SAR442168 tablets, orally once daily for first 4 weeks then crossed over to SAR442168 15 mg orally once daily for 12 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. Receives: Drug: SAR442168; Drug: Placebo; Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI) |
| Cohort 2: Placebo Then SAR442168 30 mg | Experimental | Participants received placebo matching to SAR442168 tablets, orally once daily for first 4 weeks then crossed over to SAR442168 30 mg orally once daily for 12 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. Receives: Drug: SAR442168; Drug: Placebo; Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI) |
| Cohort 2: Placebo Then SAR442168 60 mg | Experimental | Participants received placebo matching to SAR442168 tablets, orally once daily for first 4 weeks then crossed over to SAR442168 60 mg orally once daily for 12 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. Receives: Drug: SAR442168; Drug: Placebo; Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Brain Magnetic Resonance Imaging (MRI) Assessment: Number of New Gadolinium (Gd) Enhancing T1-hyperintense Lesions
Number of new Gd-enhancing T1-hyperintense lesions was detected by brain MRI at the end of 12 weeks of SAR442168 treatment (i.e., at Week 12 for Cohort 1 participants and Week 16 for Cohort 2 participants). Data was planned to be collected and analyzed on pooled population of participants at each dose level of SAR442168 (either in Cohort 1 and 2) and pooled population of participants receiving placebo in Cohort 2 and was not planned to collected during placebo administration in Cohort 1 (Weeks 12 to 16).
Measured: After 12 weeks of SAR442168 treatment for SAR442168 reporting arms (i.e., at Week 12 for Cohort 1 participants, at Week 16 for Cohort 2 participants) and at Week 4 for Cohort 2 placebo
Secondary outcomes (5)
Number of New or Enlarging T2 Lesions
Number of new and enlarging T2 lesions was detected by brain MRI at the end of 12 weeks of SAR442168 treatment (i.e., at Week 12 for Cohort 1 participants and Week 16 for Cohort 2 participants).
Measured: After 12 weeks of SAR442168 treatment for SAR442168 reporting arms (i.e., at Week 12 for Cohort 1 participants, at Week 16 for Cohort 2 participants), and at Week 4 for Cohort 2 placebo
Total Number of Gd-enhancing T1-hyperintense Lesions
Total number of Gd-enhancing T1-hyperintense lesions was detected by brain MRI at the end of 12 weeks of SAR442168 treatment (i.e., at Week 12 for Cohort 1 participants and Week 16 for Cohort 2 participants).
Measured: After 12 weeks of SAR442168 treatment for SAR442168 reporting arms (i.e., at Week 12 for Cohort 1 participants, at Week 16 for Cohort 2 participants), and at Week 4 for Cohort 2 placebo
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs): Weeks 1-4 Period
Adverse event (AE) was defined as any unfavorable and unintended sign, symptom, or disease temporally associated with use of study drug. Serious AE (SAE) was defined as any untoward medical occurrence that, at any dose resulted in death, life-threatening, inpatient hospitalization or prolongation of existing hospitalization, disability/incapacity, congenital anomaly/birth defect, or medical event. TEAEs were defined as AEs (serious/non-serious) that developed, worsened, or became serious during on-treatment period (for this outcome measure- "Weeks 1 to 4 period": time from 1st administration of study drug to Week 4). Cohorts 1 and 2 received SAR442168 and placebo for first 4 weeks, respectively.
Measured: From Baseline up to Week 4
Number of Participants With Treatment-emergent Adverse Events and Treatment-emergent Serious Adverse Events: SAR442168 Treatment Period
AE was defined as any unfavorable and unintended sign (including abnormal laboratory finding), symptom, or disease temporally associated with use of study drug. SAE was defined as any untoward medical occurrence that, at any dose resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, persistent disability/incapacity, congenital anomaly/birth defect, or medical event. TEAEs: AEs that developed, worsened, or became serious during on-treatment period (for this outcome measure defined as "SAR442168 treatment period" which was considered as Weeks 1 to 12 for Cohort 1 and Weeks 4 to 16 for Cohort 2).
Measured: Weeks 1 to 12 for Cohort 1 participants and Weeks 4 to 16 for Cohort 2 participants
Number of Participants With Individual Clinically Relevant Abnormalities in Laboratory Tests (Hematology, Chemistry, Urinalysis), Vital Signs, and Electrocardiograms (ECG)
Individual clinically relevant abnormalities was defined as potentially clinically significant abnormalities (PCSA) considered as SAEs or TEAEs leading to study treatment discontinuation or study discontinuation during the on-treatment period (time from first study drug administration until Week 16), considering all evaluations performed during the on-treatment period that included unscheduled or repeated evaluations.
Measured: Baseline up to Week 12 for Cohort 1 participants; Baseline up to Week 4 for Cohort 2 Placebo and from Weeks 4 to 16 for Cohort 2 SAR442168 receiving participants
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Mar 2019
- Study start29 Mar 2019
- Primary completion2 Jan 2020
- Study completion2 Jan 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Relapsing Multiple SclerosisStudies of the same condition, open and under way.
- More trials run by SanofiThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 130 participants (actual)
Sponsor and investigators
- Lead sponsor
- Sanofi
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Clinical Sciences & Operations, Study director, Sanofi
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03889639
- Sponsor's protocol ID
- DRI15928
- Other IDs
- 2018-003927-12, U1111-1220-0572, 2018
- Status last verified
- Sep 2025
- First submitted
- 1 Mar 2019
- Last updated
- 17 Sep 2025
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org
Publications
Reich DS, Arnold DL, Vermersch P, Bar-Or A, Fox RJ, Matta A, Turner T, Wallstrom E, Zhang X, Mares M, Khabirov FA, Traboulsee A; Tolebrutinib Phase 2b Study Group. Safety and efficacy of tolebrutinib, an oral brain-penetrant BTK inhibitor, in relapsing multiple sclerosis: a phase 2b, randomised, double-blind, placebo-controlled trial. Lancet Neurol. 2021 Sep;20(9):729-738. doi: 10.1016/S1474-4422(21)00237-4.
PubMed 34418400
Study at a glance
From the registry record, last updated by the sponsor on 17 Sep 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 2b Dose-finding Study for SAR442168, a Bruton's Tyrosine Kinase Inhibitor, in Participants With Relapsing Multiple Sclerosis
- ClinicalTrials.gov ID
- NCT03889639
- Acronym / sponsor ID
- DRI15928
- Conditions
- Relapsing Multiple Sclerosis
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 130 participants (actual)
- Lead sponsor
- SanofiIndustry (pharma, biotech, devices)
- Study start
- 29 Mar 2019 (actual)
- Primary completion
- 2 Jan 2020 (actual)
- Study completion
- 2 Jan 2020 (actual)
- First posted
- 26 Mar 2019 (actual)
- Results
- Posted 8 Mar 2023
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Primary Objective:
To determine the dose-response relationship for SAR442168 to reduce the number of new active brain lesions.
Secondary Objectives:
- To evaluate efficacy of SAR442168 on disease activity as assessed by imaging measures.
- To evaluate the safety and tolerability of SAR442168.
Detailed description
The total study duration was 24 weeks which included a screening period of 4 weeks, a treatment period of 16 weeks, and a follow-up period of up to 4 weeks. Participants who completed the Week 16 visit were proposed to be enrolled in a long-term extension safety and efficacy study to assess safety, tolerability and efficacy of SAR442168.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind (participant, investigator)
- Number of arms
- 8
| Arm | Type | Receives |
|---|---|---|
| Cohort 1: SAR442168 5 mg Then Placebo | Experimental | Drug: SAR442168, Drug: Placebo, Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI)Participants received SAR442168 5 milligrams (mg), orally once daily for first 12 weeks then crossed over to matching placebo orally once daily for 4 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. |
| Cohort 1: SAR442168 15 mg Then Placebo | Experimental | Drug: SAR442168, Drug: Placebo, Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI)Participants received SAR442168 15 mg, orally once daily for first 12 weeks then crossed over to matching placebo orally once daily for 4 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. |
| Cohort 1: SAR442168 30 mg Then Placebo | Experimental | Drug: SAR442168, Drug: Placebo, Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI)Participants received SAR442168 30 mg, orally once daily for first 12 weeks then crossed over to matching placebo orally once daily for 4 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. |
| Cohort 1: SAR442168 60 mg Then Placebo | Experimental | Drug: SAR442168, Drug: Placebo, Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI)Participants received SAR442168 60 mg, orally once daily for first 12 weeks then crossed over to matching placebo orally once daily for 4 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. |
| Cohort 2: Placebo Then SAR442168 5 mg | Experimental | Drug: SAR442168, Drug: Placebo, Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI)Participants received placebo matching to SAR442168 tablets, orally once daily for first 4 weeks then crossed over to SAR442168 5 mg orally once daily for 12 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. |
| Cohort 2: Placebo Then SAR442168 15 mg | Experimental | Drug: SAR442168, Drug: Placebo, Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI)Participants received placebo matching to SAR442168 tablets, orally once daily for first 4 weeks then crossed over to SAR442168 15 mg orally once daily for 12 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. |
| Cohort 2: Placebo Then SAR442168 30 mg | Experimental | Drug: SAR442168, Drug: Placebo, Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI)Participants received placebo matching to SAR442168 tablets, orally once daily for first 4 weeks then crossed over to SAR442168 30 mg orally once daily for 12 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. |
| Cohort 2: Placebo Then SAR442168 60 mg | Experimental | Drug: SAR442168, Drug: Placebo, Drug: Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI)Participants received placebo matching to SAR442168 tablets, orally once daily for first 4 weeks then crossed over to SAR442168 60 mg orally once daily for 12 weeks during the 16 weeks treatment period. To maintain the blinding, each participant was given a total of 4 tablets daily, either of SAR442168 or SAR442168 and placebo, to achieve the specified daily dose of SAR442168. |
Who may qualify
- Ages
- 18 to 55 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (8 listed)
- Participant must be 18 to 55 years of age, inclusive, at the time of signing the informed consent.
- Participant was diagnosed with relapsing multiple sclerosis (RMS) according to the 2017 revision of the McDonald diagnostic criteria.
- Participant must had at least 1 documented relapse within the previous year, OR greater than or equal to (>=) 2 documented relapses within the previous 2 years, OR >=1 active Gadolinium (Gd) enhancing brain lesion on an MRI scan in the past 6 months and prior to screening.
- A female participant must had used a double contraception method including a highly effective method of birth control from inclusion and up to 2 months after the last study dose, except if she had undergone sterilization at least 3 months earlier or was postmenopausal. Menopause was defined as being amenorrheic for >=12 months with serum follicle-stimulating hormone (FSH) level greater than (>) 30 International Units per liters.
- Male participants, whose partners were of childbearing potential (including breastfeeding women), must had accepted to use, during sexual intercourse, a double contraceptive method according to the following algorithm: (condom) plus (intrauterine device or hormonal contraceptive) from inclusion up to 3 months after the last dose.
Key exclusion criteria (21 listed)
- The participant had been diagnosed with primary progressive multiple sclerosis according to the 2017 revision of the McDonald diagnostic criteria or with non relapsing secondary progressive multiple sclerosis.
- Requirement for concomitant treatment that could bias the primary evaluation.
- Contraindication for MRI.
- Contraindications to use MRI Gd contrast-enhancing preparations.
- History of infection with the human immunodeficiency virus (HIV).
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| SAR442168Pharmaceutical form: Film coated tablet; Route of administration: Oral | Drug | Cohort 1: SAR442168 15 mg Then Placebo, Cohort 1: SAR442168 30 mg Then Placebo, Cohort 1: SAR442168 5 mg Then Placebo, Cohort 1: SAR442168 60 mg Then Placebo, Cohort 2: Placebo Then SAR442168 15 mg, Cohort 2: Placebo Then SAR442168 30 mg, Cohort 2: Placebo Then SAR442168 5 mg, Cohort 2: Placebo Then SAR442168 60 mg |
| PlaceboPharmaceutical form: Film coated tablet; Route of administration: Oral | Drug | Cohort 1: SAR442168 15 mg Then Placebo, Cohort 1: SAR442168 30 mg Then Placebo, Cohort 1: SAR442168 5 mg Then Placebo, Cohort 1: SAR442168 60 mg Then Placebo, Cohort 2: Placebo Then SAR442168 15 mg, Cohort 2: Placebo Then SAR442168 30 mg, Cohort 2: Placebo Then SAR442168 5 mg, Cohort 2: Placebo Then SAR442168 60 mg |
| Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI)Pharmaceutical form: Solution for injection; Route of administration: Intravenous | Drug | Cohort 1: SAR442168 15 mg Then Placebo, Cohort 1: SAR442168 30 mg Then Placebo, Cohort 1: SAR442168 5 mg Then Placebo, Cohort 1: SAR442168 60 mg Then Placebo, Cohort 2: Placebo Then SAR442168 15 mg, Cohort 2: Placebo Then SAR442168 30 mg, Cohort 2: Placebo Then SAR442168 5 mg, Cohort 2: Placebo Then SAR442168 60 mg |
Primary outcome
Brain Magnetic Resonance Imaging (MRI) Assessment: Number of New Gadolinium (Gd) Enhancing T1-hyperintense Lesions
Time frame: After 12 weeks of SAR442168 treatment for SAR442168 reporting arms (i.e., at Week 12 for Cohort 1 participants, at Week 16 for Cohort 2 participants) and at Week 4 for Cohort 2 placebo
Number of new Gd-enhancing T1-hyperintense lesions was detected by brain MRI at the end of 12 weeks of SAR442168 treatment (i.e., at Week 12 for Cohort 1 participants and Week 16 for Cohort 2 participants). Data was planned to be collected and analyzed on pooled population of participants at each dose level of SAR442168 (either in Cohort 1 and 2) and pooled population of participants receiving placebo in Cohort 2 and was not planned to collected during placebo administration in Cohort 1 (Weeks 12 to 16).
5 secondary outcomes
Number of New or Enlarging T2 Lesions
Time frame: After 12 weeks of SAR442168 treatment for SAR442168 reporting arms (i.e., at Week 12 for Cohort 1 participants, at Week 16 for Cohort 2 participants), and at Week 4 for Cohort 2 placebo
Total Number of Gd-enhancing T1-hyperintense Lesions
Time frame: After 12 weeks of SAR442168 treatment for SAR442168 reporting arms (i.e., at Week 12 for Cohort 1 participants, at Week 16 for Cohort 2 participants), and at Week 4 for Cohort 2 placebo
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs): Weeks 1-4 Period
Time frame: From Baseline up to Week 4
Number of Participants With Treatment-emergent Adverse Events and Treatment-emergent Serious Adverse Events: SAR442168 Treatment Period
Time frame: Weeks 1 to 12 for Cohort 1 participants and Weeks 4 to 16 for Cohort 2 participants
Number of Participants With Individual Clinically Relevant Abnormalities in Laboratory Tests (Hematology, Chemistry, Urinalysis), Vital Signs, and Electrocardiograms (ECG)
Time frame: Baseline up to Week 12 for Cohort 1 participants; Baseline up to Week 4 for Cohort 2 Placebo and from Weeks 4 to 16 for Cohort 2 SAR442168 receiving participants
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Sep 2025.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 34418400Reich DS, Arnold DL, Vermersch P, Bar-Or A, Fox RJ, Matta A, Turner T, Wallstrom E, Zhang X, Mares M, Khabirov FA, Traboulsee A; Tolebrutinib Phase 2b Study Group. Safety and efficacy of tolebrutinib, an oral brain-penetrant BTK inhibitor, in relapsing multiple sclerosis: a phase 2b, randomised, double-blind, placebo-controlled trial. Lancet Neurol. 2021 Sep;20(9):729-738. doi: 10.1016/S1474-4422(21)00237-4.
- DRI15928 Plain Language Results SummaryLink provided by the sponsor.
- Individual participant dataSharing planned: Yes. Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Clinical Sciences & Operations study director
Sanofi
48 sites in 10 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing SAR442168 and Locally approved intravenous contrast medium for contrast enhanced magnetic resonance imaging (MRI) in people with Relapsing Multiple Sclerosis, run by Sanofi at 48 sites in 10 countries.
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 8 inclusion and 21 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 17 Sep 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 48 sites in United States, Czechia, Russia, Ukraine, Spain and 5 more countries. 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 8 Mar 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?
Brain Magnetic Resonance Imaging (MRI) Assessment: Number of New Gadolinium (Gd) Enhancing T1-hyperintense Lesions (time frame: After 12 weeks of SAR442168 treatment for SAR442168 reporting arms (i.e., at Week 12 for Cohort 1 participants, at Week 16 for Cohort 2 participants) and at Week 4 for Cohort 2 placebo). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03889639, which also lists 1 linked publication.
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 17 Sep 2025.