ClinicalTrials.gg
RecruitingNCT07776743Updated Aug 20, 2026

A Study of Rocbrutinib in PRL-Positive Relapsing-Remitting Multiple Sclerosis

A Phase 2 interventional study of Rocbrutinib and Dimethyl Fumarate in Relapsing-remitting Multiple Sclerosis (RRMS), sponsored by Guangzhou Lupeng Pharmaceutical Company LTD.. Recruiting at 1 site in China. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-08-20.

Sponsored by Guangzhou Lupeng Pharmaceutical Company LTD. (part of Lupeng Pharmaceutical Ltd.) · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

This is a randomized, controlled, multicenter, open-label Phase IIa clinical study to evaluate the efficacy and safety of rocbrutinib (LP-168), an oral BTK inhibitor, in subjects with paramagnetic rim lesion (PRL)-positive relapsing-remitting multiple sclerosis (RRMS). Approximately 30 subjects with RRMS will be enrolled and randomized 2:1 to receive rocbrutinib 25 mg once daily (experimental arm) or dimethyl fumarate (DMF) delayed-release capsules 120 mg twice daily, escalated to 240 mg twice daily after 7 days (active control arm). The treatment period is 24 weeks; subjects in the experimental arm who remain relapse-free and are assessed by the investigator as having potential benefit may enter an open-label extension and continue rocbrutinib until Week 48 after randomization. The primary endpoint is the change from screening/baseline in the number, new number, and volume of PRL lesions detected by 7T MRI at Week 24.

02

Conditions studied

  • Relapsing-remitting Multiple Sclerosis (RRMS)

Keywords

  • multiple sclerosis
  • rocbrutinib
  • BTK inhibitor
  • paramagnetic rim lesions
  • dimethyl fumarate
03

In context

Multiple Sclerosis, Relapsing-Remitting

618 studies on the registry are indexed under Multiple Sclerosis, Relapsing-Remitting; 82 are open to participants now.

This study's planned enrollment of 30 is below the median of 66 across 437 interventional studies indexed under Multiple Sclerosis, Relapsing-Remitting.

Browse Multiple Sclerosis, Relapsing-Remitting studies →

Lead sponsor

Guangzhou Lupeng Pharmaceutical Company LTD. is the lead sponsor of 16 studies on the registry; 9 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Age 18 to 65 years (inclusive), male or female.
  2. Diagnosis of relapsing-remitting multiple sclerosis (RRMS) according to the 2017 revised McDonald criteria.
  3. Disease activity, meeting at least one of the following: (a) at least 2 documented relapses within 2 years, or at least 1 relapse within 1 year prior to signing the ICF; OR (b) at least 1 T1 gadolinium-enhancing (Gd+) lesion confirmed by brain MRI within 180 days prior to signing the ICF.
  4. : at least 4 paramagnetic rim lesions (PRL) in the CNS observed by 7T MRI within 4 weeks prior to randomization.
  5. Concomitant medication: subjects with RRMS may receive stable-dose dimethyl fumarate (DMF); other treatments require discontinuation and washout (see Exclusion Criterion #13).
  6. EDSS score ≥0 and ≤5.5 at screening and baseline assessments prior to randomization.
  7. Neurological status stable for at least 30 days prior to randomization.
  8. Adequate hepatic and renal function: and ALT ≤2.0 × ; serum total ≤1.2 × ULN (≤3.0 × ULN if documented Gilbert's syndrome); serum creatinine ≤1.5 × ULN or ≥60 mL/min (Cockcroft-Gault formula).
  9. All male subjects and female subjects of must use medically acceptable throughout the treatment period and for 1 week after the last dose; female subjects of childbearing potential must have a negative serum pregnancy test within 7 days before start of treatment and must not be lactating; male subjects must not donate sperm during the study and for 1 week after the last dose.
  10. Willing and able to provide written and to comply with the study treatment schedule and visit plan.

Exclusion criteria

Exclusion Criteria:

  1. Subjects with a disease duration of RRMS >10 years and an EDSS score ≤2.
  2. Neurological or diseases other than RRMS that, in the investigator's judgment, may affect efficacy evaluation due to clinical symptoms or concomitant medication.
  3. to MRI or allergy to gadolinium-based contrast agents.
  4. Currently diagnosed with or suspected of progressive multifocal leukoencephalopathy (PML), or a history of PML.
  5. History of within 2 years prior to randomization, except adequately treated basal cell carcinoma of the skin, carcinoma in situ of the cervix, carcinoma in situ of the breast, localized squamous cell carcinoma, and malignancies confirmed by the investigator to have been cured by surgery or other treatments.
  6. History of serious infection or potential risk of serious infection, including: infection; syphilis or tuberculosis infection (except previously infected subjects judged cured by the investigator or specialist); - or HBcAb-positive with HBV-DNA above the of the study site (subjects with HBsAg- or HBcAb-positive but HBV-DNA negative may be enrolled and require anti-HBV therapy during the study); antibody-positive with HCV-RNA above the ULN or qualitatively positive (HCV-RNA-negative subjects may be enrolled).
  7. Prior organ, allogeneic stem cell or bone marrow transplantation and/or anti-rejection therapy.
  8. Systemic chronic, recurrent or serious infection within 90 days prior to randomization (e.g., pneumonia, sepsis).
  9. Uncontrolled active systemic bacterial, fungal or viral infection within 4 weeks prior to randomization.
  10. Receipt of within 4 weeks prior to randomization, or planned during the study or within 4 weeks after the end of study treatment.
  11. Prior treatment with BTK inhibitors for malignant or autoimmune indications.
  12. Any other medical condition or complication that adversely affects participation in the study, including but not limited to: short expected survival due to pre-existing health conditions; inability to undergo primary efficacy endpoint evaluation; severe and/or uncontrolled systemic diseases judged unsuitable for the study by the investigator (including uncontrolled hypertension or diabetes ≥ Grade 2, unstable angina, congestive heart failure, respiratory diseases requiring continuous oxygen, severe thromboembolism, uncontrolled major bleeding or bleeding from vital organs, known dysfunction, severe hepatic/renal or metabolic diseases such as cirrhosis or renal failure).
  13. Poor cardiac function: class ≥2, or \<50% by echocardiography, or significant abnormalities on screening (atrial fibrillation/flutter, second-degree type II or third-degree atrioventricular block, CTCAE ≥Grade 2 bradycardia, or mean ≥450 ms on ≥3 independent ECGs).
  14. History of cerebral infarction or intracranial hemorrhage (except lacunar infarction judged by the investigator as not affecting enrollment).
  15. History of myocardial infarction within 180 days.
  16. Receipt of any drug within 3 months or 5 half-lives (whichever is longer) prior to randomization.
  17. Receipt of the following MS treatments within the specified periods prior to randomization: systemic within 4 weeks; intravenous immunoglobulin or S1P receptor modulators (e.g., fingolimod) within 2 months; azathioprine, mycophenolate mofetil or methotrexate within 3 months; anti-CD20 monoclonal antibodies (e.g., ofatumumab, ocrelizumab, rituximab) within 6 months, or if the last dose was >6 months before screening but peripheral blood B cells have not recovered to normal levels; teriflunomide within 6 months (washout may be shortened to 1 month if plasma teriflunomide concentration \<0.02 mg/L after rapid clearance); anti-α4-integrin antibody (natalizumab) within 6 months; anti-CD52 antibody (alemtuzumab) within 4 years; prior total lymphoid irradiation, mitoxantrone (with cardiotoxicity or cumulative dose ≥120 mg/m²), or other potent therapy with long-lasting effects.
  18. Major surgery (usually defined as Grade III or above per institutional regulations) or serious trauma within 4 weeks prior to randomization.
  19. Planned long-term use during the study of: strong or moderate inhibitors or inducers, OATP1B3 sensitive substrates, or proton pump inhibitors (see Appendices 2 and 3).
  20. Receipt of anticoagulants or antiplatelet agents within 7 days or 5 half-lives (whichever is longer) prior to randomization.
  21. Conditions affecting the ability to swallow the drug, or conditions seriously affecting drug absorption or pharmacokinetics (e.g., nausea/vomiting, short bowel syndrome).
  22. Disease symptoms unfavorable for oral administration of the study drug; unresolved toxicity from prior treatment affecting AE assessment; underlying disease leading to poor compliance; or alcohol/drug abuse or dependence.
  23. to rocbrutinib tablets/dimethyl fumarate capsules or any of their .
  24. Any other condition judged by the investigator as unsuitable for participation in this study.
Terms in these criteria, in plain language(28)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

CYP3A (CYP3A4) inhibitors and inducers

CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.

Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
30 participants (estimated)

Study arms

  • Experimental
    Rocbrutinib

    Rocbrutinib tablet orally once daily, taken on an empty stomach (except 1 h before to 2 h after meals) with approximately 240 mL of water; tablets must be swallowed whole. Continue until the end of the treatment period; subjects without relapse and with potential benefit may enter the open-label extension through Week 48.

    Drug: Rocbrutinib

  • Active comparator
    Dimethyl Fumarate (DMF)

    DMF 120 mg orally twice daily as starting dose; after 7 days, escalate to maintenance dose 240 mg twice daily for 24 weeks. May be taken with food to reduce flushing.

    Drug: Dimethyl Fumarate

Interventions

  • Rocbrutinib (LP-168), a novel oral BTK inhibitor, film-coated tablet. Administered 25 mg orally once daily until completion of the treatment period (maximum 48 weeks including open-label extension).

    Also known as: LP-168

  • DMF delayed-release capsules 120 mg/240 mg. Starting dose 120 mg twice daily; after 7 days, increase to maintenance dose 240 mg twice daily for 24 weeks.

06

What researchers measure

Primary outcomes

  1. Change from Screening/Baseline in the Number, New Number of Paramagnetic Rim Lesions (PRL) Detected by 7T MRI

    7T MRI imaging performed at screening/baseline and Week 24 to assess the number, newly appearing number, and volume of PRL lesions.Newly developed PRLs are defined as either (1) newly appearing lesions that demonstrate a paramagnetic rim, or (2) pre-existing lesions without a paramagnetic rim at baseline that develop a new paramagnetic rim during follow-up.

    Time frame: From screening/baseline to Week 24

  2. Change from Screening/Baseline in the Volume of Paramagnetic Rim Lesions (PRL) Detected by 7T MRI

    7T MRI imaging performed at screening/baseline and Week 24 to assess the Volume

    Time frame: From screening/baseline to Week 24

Secondary outcomes

  1. Change from Screening/Baseline in number, newly occured number of PRL lesions at Weeks 12, 36, and 48 by 7T MRI

    Time frame: Weeks 12, 36, and 48

  2. Change from Screening/Baseline in Volume of PRL lesions at Week 12, 36, and 48 by 7T MRI

    Time frame: Time Frame: Weeks 12, 36, and 48

  3. Number of total and newly developed Gd+ T1 lesions at Week 12, 24, 36 and 48 by 3T MRI

    Newly developed Gd+ T1 lesions are defined as Gd+ T1 lesions that are newly identified compared with the preceding MRI assessment. Persistent enhancement of the same lesion across consecutive visits will not be counted as a newly developed lesion more than once.

    Time frame: Weeks 12, 24, 36, and 48

  4. Cumulative number of new/enlarging T2 lesions at Week 12, 24, 36 and 48 by 7T MRI

    Time frame: Weeks 12, 24, 36, and 48

  5. Change from Screening/Baseline in brain volume at Week 12, 24 ,36 and 48 by 7T MRI

    Time frame: Weeks 12, 24, 36, and 48

  6. Change in Expanded Disability Status Scale (EDSS) score

    The Expanded Disability Status Scale (EDSS) is scored from 0 (normal neurological examination) to 10 (death); higher scores indicate greater disability

    Time frame: Weeks 12, 24, 36, and 48

  7. Adjusted cumulative annualized relapse rate (ARR)

    Time frame: From randomization up to Week 48

  8. Change in Timed 25-Foot Walk (T25FW) results

    The Timed 25-Foot Walk (T25FW) is a quantitative ambulation test: the time (in seconds) for the subject to walk 25 feet (7.62 meters) as fast as possible, assessing lower limb motor function; an increase from baseline indicates functional worsening

    Time frame: Weeks 12, 24, 36, and 48

  9. Change in 9-Hole Peg Test (9HPT) results

    The 9-Hole Peg Test (9HPT) is a quantitative upper extremity function test: the time (in seconds) for the subject to place 9 pegs into a pegboard and remove them, tested for both dominant and non-dominant hands, assessing fine motor function; an increase from baseline indicates functional worsening

    Time frame: Weeks 12, 24, 36, and 48

  10. Time to first confirmed disability progression (CDP) event

    CDP is defined as a clinically significant increase in EDSS score from baseline confirmed over at least 4 weeks (increase ≥1.5 points from a baseline of 0; ≥1.0 point from a baseline of 0.5 to ≤5.5; ≥0.5 point from a baseline \>5.5)

    Time frame: From date of randomization until the date of first confirmed disability progression, assessed up to Week 48

  11. Number of participants with treatment-emergent adverse events (TEAEs) as assessed by CTCAE v5.0

    Time frame: From first dose of study treatment through 4 weeks after the end of the 24-week treatment period (or through 4 weeks after the end of the 48-week treatment period including the open-label extension), including the safety follow-up period

  12. Number of participants with treatment-related adverse events (TRAEs) as assessed by CTCAE v5.0

    Time frame: From first dose of study treatment through 4 weeks after the end of the 24-week treatment period (or through 4 weeks after the end of the 48-week treatment period including the open-label extension), including the safety follow-up period

  13. Number of participants with serious adverse events (SAEs) as assessed by CTCAE v5.0

    Time frame: From first dose of study treatment through 4 weeks after the end of the 24-week treatment period (or through 4 weeks after the end of the 48-week treatment period including the open-label extension), including the safety follow-up period

  14. Number of participants with clinically significant abnormal findings on physical examination

    Time frame: From first dose of study treatment through 4 weeks after the end of the 24-week treatment period (or through 4 weeks after the end of the 48-week treatment period including the open-label extension), including the safety follow-up period

Other outcomes

  1. Change in immunoglobulin quantification (IgG, IgA, IgM)

    Time frame: Weeks 12, 24, 36, and 48

  2. Change in lymphocyte subset counts (e.g., CD3+, CD4+, CD8+, and CD19+ B cells)

    Time frame: Weeks 12, 24, 36, and 48

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 20, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07776743
Responsible party
Sponsor
First posted
Aug 20, 2026
Start date
Aug 2026 (estimated)
Primary completion
Jun 2028 (estimated)
Completion
Dec 2028 (estimated)
Last update
Aug 20, 2026

Study contacts

Dr. De-Cai Tian, M.D., Ph.D.
Contact
tiandecai@bjtth.org
+861059978585
De-Cai Tian, M.D., Ph.D.
principal investigator · Beijing Tiantan Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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