Trial Outcomes & Findings for Tolebrutinib, a Brain-penetrant Bruton's Tyrosine Kinase Inhibitor, for the Modulation of Chronically Inflamed White Matter Lesions in Multiple Sclerosis (NCT NCT04742400)

NCT ID: NCT04742400

Last Updated: 2024-08-13

Results Overview

Paramagnetic rims indicate the presence of inflammation and ongoing demyelination and axonal transection at the lesion edge. The lesions under study were present for at least 6 months. The results represent the number of participants in whom at least the paramagnetic rim has disappeared in at least 1 lesion at the end of 48 weeks of tolebrutinib 60 mg.

Recruitment status

ACTIVE_NOT_RECRUITING

Study phase

PHASE2

Target enrollment

12 participants

Primary outcome timeframe

48 weeks

Results posted on

2024-08-13

Participant Flow

Participants with MS were recruited between April 1, 2021 and November 30, 2023. Participants were referred by both internal and external providers, and were self-referred.

Participant milestones

Participant milestones
Measure
Tolebrutinib Cohort
Participants on Tolebrutinib 60 mg/day for 48 weeks.
Anti-CD20 Cohort
Participants on baseline Anti-CD20 continuing at least through week 48.
Overall Study
STARTED
7
5
Overall Study
COMPLETED
7
5
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Tolebrutinib, a Brain-penetrant Bruton's Tyrosine Kinase Inhibitor, for the Modulation of Chronically Inflamed White Matter Lesions in Multiple Sclerosis

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Tolebrutinib Cohort
n=7 Participants
Participants on Tolebrutinib 60 mg/day for 48 weeks.
Anti-CD20 Cohort
n=5 Participants
Participants on baseline Anti-CD20 continuing at least through week 48.
Total
n=12 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
7 Participants
n=5 Participants
5 Participants
n=7 Participants
12 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Continuous
47.7 Years
STANDARD_DEVIATION 7.8 • n=5 Participants
42 Years
STANDARD_DEVIATION 6.11 • n=7 Participants
45.1 Years
STANDARD_DEVIATION 7.2 • n=5 Participants
Sex: Female, Male
Female
2 Participants
n=5 Participants
4 Participants
n=7 Participants
6 Participants
n=5 Participants
Sex: Female, Male
Male
5 Participants
n=5 Participants
1 Participants
n=7 Participants
6 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
6 Participants
n=5 Participants
5 Participants
n=7 Participants
11 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
2 Participants
n=7 Participants
2 Participants
n=5 Participants
Race (NIH/OMB)
White
6 Participants
n=5 Participants
3 Participants
n=7 Participants
9 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
United States
7 participants
n=5 Participants
5 participants
n=7 Participants
12 participants
n=5 Participants
Paramagnetic Rim Lesions
9 Number of Paramagnetic Rim Lesions
n=5 Participants
4.5 Number of Paramagnetic Rim Lesions
n=7 Participants
8 Number of Paramagnetic Rim Lesions
n=5 Participants

PRIMARY outcome

Timeframe: 48 weeks

Paramagnetic rims indicate the presence of inflammation and ongoing demyelination and axonal transection at the lesion edge. The lesions under study were present for at least 6 months. The results represent the number of participants in whom at least the paramagnetic rim has disappeared in at least 1 lesion at the end of 48 weeks of tolebrutinib 60 mg.

Outcome measures

Outcome measures
Measure
Tolebrutinib Cohort
n=7 Participants
Participants on Tolebrutinib 60 mg/day for 48 weeks.
Anti-CD20 Cohort
n=5 Participants
Participants on baseline Anti-CD20 continuing at least through week 48.
Disappearance of Paramagnetic Rim Lesions at 48 Weeks of 60 mg of Tolebrutinib.
0 Participants
0 Participants

SECONDARY outcome

Timeframe: each patient visit

To assess safety and tolerability of 96 weeks of tolebrutinib 60 mg (initial cohort), or 48 weeks of treatment with tolebrutinib 60 mg and 96 weeks off treatment with tolebrutinib 120 mg (Cohort A), all following anti-CD20antibody.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: baseline vs. 96 weeks

To assess the possible repair of chronically inflamed white matter lesions in which inflammation at the lesion edge has been modulated by tolebrutinib. A reduction of the T1 relaxation time would be compatible with lesion repair. A reduction in lesion size could indicate lesion repair.

Outcome measures

Outcome data not reported

Adverse Events

Tolebrutinib Cohort

Serious events: 1 serious events
Other events: 7 other events
Deaths: 0 deaths

Anti-CD20 Cohort

Serious events: 0 serious events
Other events: 5 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Tolebrutinib Cohort
n=7 participants at risk
Participants on Tolebrutinib 60 mg/day for 48 weeks.
Anti-CD20 Cohort
n=5 participants at risk
Participants on baseline Anti-CD20 continuing at least through week 48.
Blood and lymphatic system disorders
Anemia
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks

Other adverse events

Other adverse events
Measure
Tolebrutinib Cohort
n=7 participants at risk
Participants on Tolebrutinib 60 mg/day for 48 weeks.
Anti-CD20 Cohort
n=5 participants at risk
Participants on baseline Anti-CD20 continuing at least through week 48.
Nervous system disorders
Weakness
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Psychiatric disorders
Insomnia
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Psychiatric disorders
Vivid dreams
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Renal and urinary disorders
Renal and urinary disorders other: hesitancy
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Respiratory, thoracic and mediastinal disorders
Bronchitis
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Skin and subcutaneous tissue disorders
Rash, maculopapular
28.6%
2/7 • Number of events 2 • 48 weeks
0.00%
0/5 • 48 weeks
Skin and subcutaneous tissue disorders
Skin lesion/insect bite
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Cardiac disorders
Asymptomatic conduction disorder
28.6%
2/7 • Number of events 2 • 48 weeks
0.00%
0/5 • 48 weeks
Cardiac disorders
Sinus bradycardia
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Ear and labyrinth disorders
Tinnitus
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Eye disorders
Presbyopia
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Eye disorders
Subconjunctival hemorrhage
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Gastrointestinal disorders
Diarrhea
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Gastrointestinal disorders
Nausea
28.6%
2/7 • Number of events 2 • 48 weeks
0.00%
0/5 • 48 weeks
Gastrointestinal disorders
Oral hemorrhage
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Gastrointestinal disorders
Stomach pain
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Gastrointestinal disorders
Vomiting
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
General disorders
Bruising (worsening)
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
General disorders
Facial pain (left side)
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
General disorders
Fatigue
14.3%
1/7 • Number of events 1 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks
General disorders
Fever
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
General disorders
Peripheral edema
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Infections and infestations
Acute upper respiratory tract infection
0.00%
0/7 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks
Infections and infestations
COVID-19
57.1%
4/7 • Number of events 4 • 48 weeks
40.0%
2/5 • Number of events 2 • 48 weeks
Injury, poisoning and procedural complications
Bruising and/or other injury
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Injury, poisoning and procedural complications
Fall
28.6%
2/7 • Number of events 2 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks
Injury, poisoning and procedural complications
Mechanical fall (skiing)
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Injury, poisoning and procedural complications
Right 2nd digit and right foot laceration
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Investigations
Elevated white blood cell count in cerebrospinal fluid
0.00%
0/7 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks
Investigations
Hypokalemia, grade 1
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Investigations
Lipase increased
28.6%
2/7 • Number of events 2 • 48 weeks
0.00%
0/5 • 48 weeks
Investigations
Lymphocyte count decreased
0.00%
0/7 • 48 weeks
40.0%
2/5 • Number of events 2 • 48 weeks
Investigations
Platelet count decreased
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Musculoskeletal and connective tissue disorders
Arthralgia
0.00%
0/7 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks
Musculoskeletal and connective tissue disorders
Meniscus tear
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Musculoskeletal and connective tissue disorders
Muscle spasms
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Musculoskeletal and connective tissue disorders
Myalgia
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Nervous system disorders
Bilateral lower extremity paresthesia
0.00%
0/7 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks
Nervous system disorders
Cerebrospinal fluid leak
14.3%
1/7 • Number of events 1 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks
Nervous system disorders
Extrapyramidal disorder
0.00%
0/7 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks
Nervous system disorders
Headache
42.9%
3/7 • Number of events 3 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks
Nervous system disorders
Increased tingling in right upper extremity
0.00%
0/7 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks
Nervous system disorders
Left leg heaviness
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Nervous system disorders
Leg weakness
14.3%
1/7 • Number of events 1 • 48 weeks
0.00%
0/5 • 48 weeks
Nervous system disorders
New lesion
0.00%
0/7 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks
Nervous system disorders
Nystagmus
0.00%
0/7 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks
Nervous system disorders
Peripheral sensory neuropathy
0.00%
0/7 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks
Nervous system disorders
Pyramidal tract syndrome
0.00%
0/7 • 48 weeks
20.0%
1/5 • Number of events 1 • 48 weeks

Additional Information

Daniel Reich, MD

National Institutes of Health

Phone: 301-496-1801

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place