Multiple SclerosisPhase 3INN-MSNCT03691077
Effect of Ocrelizumab on Brain Innate Immune Microglial Cells Activation in MS Using PET-MRI With 18F-DPA714
A Phase 3 study testing Ocrelizumab in people with Multiple Sclerosis and Relapse, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.
Trial summary
Ocrelizumab is a humanized anti-CD20 monoclonal antibody that showed in phase III trials a powerful effect on relapse rate and lesion load accumulation in the relapsing form of multiple sclerosis (RMS). Read more about this study
- Who is it for?
- Ages 18 to 60 yearsHealthy volunteers can take part
- Conditions the study is for
- Multiple Sclerosis, Relapse, Primary Progressive Multiple Sclerosis
- What is being tested?
- Ocrelizumab
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 51 participants
- Where
- 1 siteFrance
- Study dates
- 11 Nov 2018to Sep 2024
- Phase
- Phase 3
- Are there results?
- None posted in the registry
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 60 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Signed informed consent form
- Able to comply with the study protocol, in the investigator's judgment
- Social security registration
- Age 18 - 60 years, inclusive
- For women of childbearing potential: agreement to use an acceptable birth control method during the treatment period and for at least 12 months after the last dose of study drug.
- RMS
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- Have a definite diagnosis of RMS, confirmed as per the revised McDonald 2010 criteria (Polman et al. 2011);
- Absence of history of Secondary Progressive Multiple Sclerosis (SPMS) or history of Primary Progressive Multiple Sclerosis (PPMS)
- Have an active disease: Activity determined by clinical relapses and/or MRI activity (contrast-enhancing lesions; new or unequivocally enlarging T2 lesions assessed at least annually (Lublin et al. 2014))
- Neurological stability for ≥30 days prior to both screening and baseline
- EDSS of 0.0 to 5.5, inclusive, at screening
- Have a length of disease duration, from first symptom, of < 15 years
- Have received no more than first line injectable treatments (i.e. IFNs and GA, possible switchs within this class) + 1 other treatment (e.g. teriflunomide, DMF, fingolimod, natalizumab, no switch allowed within this group). More details in section 6.1.1.2.1
- Have a suboptimal response to the last received DMT: a suboptimal response is defined by having at least one of the following events while being on a stable dose of the same DMT for at least 6 months:
- One or more clinically reported relapse(s)
- OR one or more T1 Gd-enhanced lesion(s)
- OR one or more new and/or enlarging T2 lesions on MRI
- In addition, in patients receiving stable doses of the same approved DMT for more than a year, at least one of the above events must have occurred within the last 12 months of treatment with this DMT.
- RMS
- Diagnosis of SPMS according to Lublin et al. 2014 criteria
- Prior history of RRMS (Have a definite diagnosis of RRMS, confirmed as per the revised McDonald 2010 criteria
- Have an active disease during the two years preceding the study entry: Activity determined by clinical relapses and/or MRI activity (contrast-enhancing lesions; new or unequivocally enlarging T2 lesions assessed at least annually (Lublin et al. 2014))
- Evidence of any disability progression unrelated to relapse within the 2 year period prior to study baseline. Progression in the last year will be reported by the treating physician and documented using a disease progression rating system checklist (see Appendix 1)
- Progression is defined as steadily increasing objectively documented neurologic dysfunction/disability without unequivocal recovery (fluctuations and phases of stability may occur) (Lublin, 2014)
- Absence of history of Primary Progressive Multiple Sclerosis or Progressive Relapsing Multiple Sclerosis at screening
- EDSS at screening ≤ 6.5points
- Score of ≥ 2.0 on the Functional Systems (FS) scale for the pyramidal system that is due to lower extremity findings
- Disease duration from the onset of Secondary Progressive MS symptoms of less than 10 years if baseline EDSS ≤5
- Disease duration from the onset of Secondary Progressive MS symptoms of less than 15 years if baseline EDSS >5
- Have received no more than first line treatments (either injectable, i.e. IFNs and GA, or oral, either teriflunomide and dimethyl fumarate, possible switchs within this group) + 1 second line treatment (e.g., fingolimod, natalizumab, no switch allowed within this group).
- PPMS
- Diagnosis of PPMS in accordance with the 2010 revised McDonald criteria :
- One year of disease progression (retrospectively or prospectively determined)
- Plus 2 of the 3 following criteria :
- Evidence for DIS in the brain based on ≥ 1 T2 lesions in at least 1 area characteristic for MS (periventricular, juxtacortical, or infratentorial)
- Evidence for DIS in the spinal cord based on ≥ 2 T2 lesions in the cord
- Positive CSF (isoelectric focusing evidence of oligoclonal bands and/or elevated IgG index)
- Absence of history of Relapsing Remitting Multiple Sclerosis, Secondary Progressive, or Progressive Relapsing Multiple Sclerosis at screening
- Evidence of any disability progression unrelated to relapse within the 2 year period prior to study baseline. Progression in the last 2 year will be reported by the treating physician and documented using a disease progression rating system checklist (see Appendix 1)
- EDSS at screening between 2.0 and 6.5 points
- Score of ≥ 2.0 on the Functional Systems (FS) scale for the pyramidal system that is due to lower extremity findings
- Disease duration from the onset of MS symptoms of less than 10 years if baseline EDSS ≤5
- Disease duration from the onset of MS symptoms of less than 15 years if baseline EDSS >5
- Healthy volunteers (20 subjects):
- Signed informed consent form
- Able to comply with the study protocol, in the investigator's judgment
- Social security registration
- Age 18 - 60 years, inclusive
- For women of childbearing potential: agreement to use an acceptable birth control method during the research period and for at least 1 cycle after the PET-MRI.
- A woman is considered to be of childbearing potential if she is postmenarcheal, has not reached a postmenopausal state (≥ 12 continuous months of amenorrhea with no identified cause other than menopause), and has not undergone surgical sterilization (removal of ovaries and/or uterus).
- The following are acceptable contraceptive methods: progestogen-only oral hormonal contraception, where inhibition of ovulation is not the primary mode of action, male or female condom with or without spermicide, and cap, diaphragm, or sponge with spermicide. A combination of male condom with cap, diaphragm, or sponge with spermicide (double barrier methods) is considered acceptable
- Pregnancy tests will be performed at each study visit for women of childbearing potential.
Who cannot join
- Inability to complete an MRI (contraindications for MRI include but are not restricted to weight ≥ 140 kg, pacemaker, cochlear implants, presence of foreign substances in the eye, intracranial vascular clips, surgery within 6 weeks of entry into the study, coronary stent implanted within 8 weeks prior to the time of the intended MRI, contraindication to gadoteric acid etc.).
- Impossibility to complete a PET scan: pregnancy, nuclear medicine irradiation in the year preceding baseline visit for clinical research and one year after the end of their participation in the study, lactation.
- Known presence of other neurological disorders, including but not limited to, the following:
- History of ischemic cerebrovascular disorders (e.g., stroke, transient ischemic attack) or ischemia of the spinal cord
- History or known presence of CNS or spinal cord tumor (e.g., meningioma, glioma)
- History or known presence of potential metabolic causes of myelopathy (e.g., untreated vitamin B12 deficiency)
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- History or known presence of infectious causes of myelopathy (e.g., syphilis, Lyme disease, human T-lymphotropic virus 1 (HTLV-1), herpes zoster myelopathy)
- History of genetically inherited progressive CNS degenerative disorder (e.g., hereditary paraparesis; MELAS [mitochondrial myopathy, encephalopathy, lactic acidosis, stroke] syndrome)
- Neuromyelitis optica
- History or known presence of systemic autoimmune disorders potentially causing progressive neurologic disease (e.g., lupus, anti-phospholipid antibody syndrome, Sjogren's syndrome, Behçet's disease)
- History or known presence of sarcoidosis
- History of severe, clinically significant brain or spinal cord trauma (e.g., cerebral contusion, spinal cord compression) - General Health:
- 1. Pregnancy or lactation 2. Any concomitant disease that may require chronic treatment with systemic corticosteroids or immunosuppressant drugs during the course of the study 3. History or currently active primary or secondary immunodeficiency 4. Lack of peripheral venous access 5. Significant, uncontrolled disease, such as cardiovascular (including cardiac arrhythmia), pulmonary (including obstructive pulmonary disease), renal, hepatic, endocrine or gastrointestinal or any other significant disease that may preclude patient from participating in the study 6. History of severe allergic or anaphylactic reactions to humanized or murine monoclonal antibodies 7. Congestive heart failure (New York Heart Association [NYHA] III or IV functional severity) 8. Known active bacterial, viral, fungal, mycobacterial infection or other infection [including tuberculosis [TB] or atypical mycobacterial disease (but excluding fungal infection of nail beds)] or any major episode of infection requiring hospitalization or treatment with i.v. antibiotics within 4 weeks prior to baseline visit or oral antibiotics within 2 weeks prior to baseline visit; Note: Active infections should be treated and effectively controlled before possible inclusion in the study 9. History or known presence of recurrent or chronic infection 10. History of malignancy, including solid tumors and hematological malignancies, except basal cell carcinoma, in situ squamous cell carcinoma of the skin, and in situ carcinoma of the cervix of the uterus that have been previously completely excised with documented, clear margins 11. History of alcohol or drug abuse within 24 weeks prior to baseline 12. History or laboratory evidence of coagulation disorders 13. History of major opportunistic infections (i.e. cryptococcosis, Pneumocystis pneumonia, progressive multifocal leukoencephalopathy [PML]) 14. History of recurrent aspiration pneumonia requiring antibiotic therapy 15. Hypersensitivity to the active substance or to any of the excipients (Sodium Acetate Trihydrate, Glacial Acetic Acid, Trehalose Dihydrate, Polysorbate 20, Water for Injection)
- Laboratory Findings:
- TSPO polymorphism indicating a low affinity profile.
- Positive serum β human chorionic gonadotropin (hCG) measured at screening and before each PET-Scan procedure
- Positive screening tests for hepatitis B (hepatitis B surface antigen [HBsAg] positive, or positive hepatitis B core antibody [total HBcAb] confirmed by a positive viral DNA polymerase chain reaction [PCR]) or hepatitis C (HepCAb)
- Lymphocyte count below lower limit of normal (LLN)
- CD4 count <300/μL.
- Absolute neutrophil count <1.0 × 103/µL
- Medications:
- Receipt of a live vaccine or attenuated live vaccine within 6 weeks prior to the baseline visit. In rare cases when patient requires vaccination with a live vaccine, the screening period may be extended but cannot exceed 8 weeks
- Treatment with any investigational agent within 24 weeks of screening or five half-lives of the investigational drug (whichever is longer) or treatment with any experimental procedures for MS (e.g., treatment for chronic cerebrospinal venous insufficiency)
- Treatment with Flumitrazepam, triazolam, diazepam
- Treatment of Multiple Sclerosis:
- Previous treatment with B-cell targeted therapies (i.e., rituximab, ocrelizumab, atacicept, belimumab, or ofatumumab)
- Systemic corticosteroid therapy within 4 weeks prior to screeningii
- Treatment with IV immunoglobulin (Ig) within 12 weeks prior to baseline
- Any previous treatment with alemtuzumab, daclizumab, anti-CD4, total body irradiation or bone marrow transplantation
- Any previous treatment with biotin in the last month prior to screening
- Previous treatment with mitoxantrone, cyclosporine or cladribine in the last 96 weeks
- Previous treatment with azathioprine, cyclophosphamide, mycophenolate mofetil,methotrexate, or laquinimod in the last 24 weeks
- Previous treatment with teriflunomide, unless an accelerated elimination procedure is implemented before screening visit. Accelerated elimination procedure after stopping treatment with teriflunomide:
- cholestyramine 8g is administered 3 times daily for a period of 11 days, or cholestyramine 4g three times a day can be used, if cholestyramine 8g three times a day is not well tolerated,
- alternatively, 50g of activated powdered charcoal is administered every 12 hours for a period of 11 days
- Previous treatment with natalizumab in the last 12 weeks
- Previous treatment with fingolimod or dimethyl fumarate if at baseline the lymphocyte count is below lower limit of normality (LLN). Apart from the lymphocytes count within normal ranges, 12 weeks of a washout period of fingolimod or dimethylfumarate would be required before the start of ocrelizumab administration
- History of recurrent aspiration pneumonia requiring antibiotic therapy
- Treatment with fampridine/dalfamipridine (Fampyra®)/Ampyra®) unless on stable dose for ≥ 30 days prior to screening. Wherever possible, patients should remain on stable doses throughout the 96-week treatment period
- Treatment with β interferons, glatiramer acetate, plasmapheresis, or other immunomodulatory therapies within 4 weeks prior to baselinei
- Healthy volunteers:
- Inability to complete an MRI (contraindications for MRI include but are not restricted to weight ≥ 140 kg, pacemaker, cochlear implants, presence of foreign substances in the eye, intracranial vascular clips, surgery within 6 weeks of entry into the study, coronary stent implanted within 8 weeks prior to the time of the intended MRI, contraindication to acid gadoteric etc.)
- Impossibility to complete a PET scan: pregnancy, nuclear medicine irradiation in the year preceding baseline visit for clinical research
- Known presence of any neurological disorders
- Pregnancy or lactation
- Lack of peripheral venous access
- Significant, uncontrolled disease, such as cardiovascular (including cardiac arrhythmia), pulmonary (including obstructive pulmonary disease), renal, hepatic, endocrine or gastrointestinal infectious, neoplasic or any other significant disease that may preclude patient from participating in the study
- History of alcohol or drug abuse within 24 weeks prior to baseline
- TSPO polymorphism indicating a low affinity profile.
- Treatment with Flumitrazepam, triazolam, diazepam
Trial locations and contacts
1 site in 1 country.
France1 site, 1 recruiting
- Recruiting
Hôpital Saint-Antoine - Service de Neurologie
Paris, 75651
Bruno Stankoff, MD Ph.D, 0171970651, bruno.stankoff@aphp.fr
About this study
Official title: A Prospective Study Evaluating the Effect of Ocrelizumab on Brain Innate Immune Microglial Cells Activation in Multiple Sclerosis Using PET-MRI With 18F-DPA714
Ocrelizumab is a humanized anti-CD20 monoclonal antibody that showed in phase III trials a powerful effect on relapse rate and lesion load accumulation in the relapsing form of multiple sclerosis (RMS). This therapeutic agent also showed for the first time a significant reduction of disability progression in Primary Progressive Multiple Sclerosis (PPMS) patients, whereas all other anti-inflammatory drugs had failed to do so in well-conducted studies. This raises the possibility that ocrelizumab, beyond its effects on the adaptive immune system activation underlying white matter lesions and clinical relapses, could beneficially influence other mechanisms involved in the progressive phase of the disease, such as the innate immune microglial cells activation, that has been described to persist in a diffuse manner in the Central Nervous system (CNS). To date the activation of these cells is not accessible to classical Magnetic Resonance Imaging (MRI) techniques, impeding the full investigation of the therapeutic efficacy of drugs such as ocrelizumab.
Read the detailed description
The first dose of ocrelizumab will be administered as two 300-mg IV infusions (600 mg total) in 250 mL 0.9% sodium chloride each separated by 14 days (i.e., Days 1 and 15), followed by one 600-mg IV infusion in 500 mL 0.9% sodium chloride every subsequent doses (i.e., every 24 weeks) for 72 weeks.
Premedication with 100 mg of methylprednisolone (or an equivalent) approximately 30 minutes prior to each ocrelizumab infusion and additional premedication with an antihistaminic drug (e.g., diphenhydramine) approximately 30 - 60 minutes before each infusion of ocrelizumab to reduce the frequency and severity of infusion-related reactions (IRRs). The addition of an antipyretic (e.g., acetaminophen/ paracetamol) may also be considered.
Patients will undergo PET scan with 18F-DPA714 and MRI exams at different time points as mentioned in the assessment table.
Disease will be clinically monitored at different time points with classical tests including EDSS, MSFC, BICAMS.
Laboratory analyses on complete blood count, lymphocytes subsets count, neurofilament will be done. Analyses will not be limited to the above mentioned list.
Pregnancy tests and genetics will be done. An optional lumbar puncture will be performed at baseline to assess cytokinic profile predictive of disease evolution and cortical pathology. Patients who refuse to have a lumbar puncture can be included in the clinical trial if they have eligibility criteria.
TSPO polymorphism will be checked at baseline with other screening lab tests.
- Being tested
- Ocrelizumab
- Keywords
- Multiple Sclerosis, Ocrelizumab, Microglial cells Activation, PET-IRM, 18F-DPA714
- Medical subject headings
- Multiple Sclerosis, Recurrence, Multiple Sclerosis, Chronic Progressive
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
OcrelizumabDrug
The first dose of ocrelizumab will be administered as two 300-mg IV infusions (600 mg total) in 250 mL 0.9% sodium chloride each separated by 14 days (i.e., Days 1 and 15), followed by one 600-mg IV infusion in 500 mL 0.9% sodium chloride every subsequent doses (i.e., every 24 weeks) for 72 weeks.
| Study group | Role | What they receive |
|---|---|---|
| Ocrelizumab | Experimental | The first dose of ocrelizumab will be administered as two 300-mg IV infusions (600 mg total) in 250 mL 0.9% sodium chloride each separated by 14 days (i.e., Days 1 and 15), followed by one 600-mg IV infusion in 500 mL 0.9% sodium chloride every subsequent doses (i.e., every 24 weeks) for 72 weeks. Receives: Drug: Ocrelizumab |
What is being measured
The primary outcome is the main question the study is designed to answer.
Determine if ocrelizumab treatment is associated with a decrease in the extent of brain white matter microglial activation.
Percent change in the extent of 18FDPA714 positive voxels in the total white matter from baseline to month 24 in the whole cohort of MS patients.
Measured: from baseline to month 24
Secondary outcomes (8)
Decrease of microglial activation as measured by [18F]DPA-714 PET in normal appearing white matter
Percent change in extent of 18FDPA714 positive voxels in normal appearing white matter between baseline and months 6 (short-term) and 24 (long-term) in the whole cohort, in RMS cohort (global and splitted in RRMS and RMS having reached the SPMS phase) and in PPMS cohort
Measured: between baseline and months 6 and 24
decrease of microglial activation as measured by [18F]DPA-714 PET in the total white matter
Percent change in extent of [18F]-DPA-714 positive voxels in the total white matter from baseline to month 24, in PPMS cohort and in RMS cohort (whole cohort and subgroups of RRMS and SPMS patients).
Measured: from baseline to months 24
decrease of microglial activation as measured by [18F]DPA-714 PET in white matter lesions
Percent change in extent of 18FDPA714 positive voxels in white matter lesions between baseline to months 6 and 24, in the whole cohort, in RMS cohort (global and splitted in RRMS and RMS having reached the SPMS phase) and in PPMS cohort.
Measured: between baseline and months 6 and 24
decrease of microglial activation as measured by [18F]DPA-714 PET in white matter perilesional areas
Percent change in extent of 18FDPA714 positive voxels in white matter perilesional areas between baseline to months 6 and 24 in the whole cohort, in RMS cohort (global and splitted in RRMS and RMS having reached the SPMS phase) and in PPMS cohort.
Measured: between baseline to months 6 and 24
decrease of microglial activation as measured by [18F]DPA-714 PET in in number of plaques classified as chronic active
Percent change in number of plaques classified as chronic active from baseline to month 6 and month 24 in the whole cohort, in RMS cohort (global and splitted in RRMS and RMS having reached the SPMS phase) and in PPMS cohort.
Measured: from baseline to month 6 and month 24
decrease of microglial activation as measured by [18F]DPA-714 PET in number of plaques classified as smoldering plaques
Percent change in number of plaques classified as smoldering plaques from baseline to month 6 and month 24 in the whole cohort, in RMS cohort (global and splitted in RRMS and RMS having reached the SPMS phase) and in PPMS cohort.
Measured: from baseline to month 6 and month 24
decrease of microglial activation as measured by [18F]DPA-714 PET in deep grey matter
Percent change in extent of 18FDPA714 positive voxels in deep grey matter between baseline to months 6 and 24 in the whole cohort, in RMS cohort (global and splitted in RRMS and RMS having reached the SPMS phase) and in PPMS cohort.
Measured: between baseline to months 6 and 24
decrease of microglial activation as measured by [18F]DPA-714 PET in cortical grey matter
Percent change in extent of 18FDPA714 positive voxels in cortical grey matter between baseline to months 6 and 24 in the whole cohort, in RMS cohort (global and splitted in RRMS and RMS having reached the SPMS phase) and in PPMS cohort.
Measured: between baseline to months 6 and 24
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Oct 2018
- Study start11 Nov 2018
- Primary completionMay 2024 (estimated)
- Study completionSep 2024 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Multiple SclerosisStudies of the same condition, open and under way.
- More trials run by Assistance Publique - Hôpitaux de ParisThe 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 3
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- The first dose of ocrelizumab will be administered as two 300-mg IV infusions (600 mg total) in 250 mL 0.9% sodium chloride each separated by 14 days (i.e., Days 1 and 15), followed by one 600-mg IV infusion in 500 mL 0.9% sodium chloride every subsequent doses (i.e., every 24 weeks) for 72 weeks.
- Masking
- None (open label)
- Enrolment
- 51 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Assistance Publique - Hôpitaux de Paris
- Sponsor type
- University, hospital or other
- Collaborators
- Roche Pharma AG, Paris Brain Institute (ICM)
- Responsible party
- Sponsor
- Investigators
- Bruno Stankoff, MD Ph.D, Principal investigator, Hôpital Saint-Antoine - Service de Neurologie
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03691077
- Sponsor's protocol ID
- P170702J
- Acronym
- INN-MS
- Status last verified
- Sep 2023
- First submitted
- 28 Sep 2018
- Last updated
- 6 Sep 2023
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 6 Sep 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Prospective Study Evaluating the Effect of Ocrelizumab on Brain Innate Immune Microglial Cells Activation in Multiple Sclerosis Using PET-MRI With 18F-DPA714
- ClinicalTrials.gov ID
- NCT03691077
- Acronym / sponsor ID
- INN-MS / P170702J
- Keywords
- Multiple Sclerosis, Ocrelizumab, Microglial cells Activation, PET-IRM, 18F-DPA714
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 51 participants (estimated)
- Lead sponsor
- Assistance Publique - Hôpitaux de ParisUniversity, hospital or other
- Collaborators
- Roche Pharma AG, Paris Brain Institute (ICM)
- Study start
- 11 Nov 2018 (actual)
- Primary completion
- May 2024 (estimated)
- Study completion
- Sep 2024 (estimated)
- First posted
- 1 Oct 2018 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Ocrelizumab is a humanized anti-CD20 monoclonal antibody that showed in phase III trials a powerful effect on relapse rate and lesion load accumulation in the relapsing form of multiple sclerosis (RMS). This therapeutic agent also showed for the first time a significant reduction of disability progression in Primary Progressive Multiple Sclerosis (PPMS) patients, whereas all other anti-inflammatory drugs had failed to do so in well-conducted studies. This raises the possibility that ocrelizumab, beyond its effects on the adaptive immune system activation underlying white matter lesions and clinical relapses, could beneficially influence other mechanisms involved in the progressive phase of the disease, such as the innate immune microglial cells activation, that has been described to persist in a diffuse manner in the Central Nervous system (CNS). To date the activation of these cells is not accessible to classical Magnetic Resonance Imaging (MRI) techniques, impeding the full investigation of the therapeutic efficacy of drugs such as ocrelizumab.
Detailed description
The first dose of ocrelizumab will be administered as two 300-mg IV infusions (600 mg total) in 250 mL 0.9% sodium chloride each separated by 14 days (i.e., Days 1 and 15), followed by one 600-mg IV infusion in 500 mL 0.9% sodium chloride every subsequent doses (i.e., every 24 weeks) for 72 weeks.
Premedication with 100 mg of methylprednisolone (or an equivalent) approximately 30 minutes prior to each ocrelizumab infusion and additional premedication with an antihistaminic drug (e.g., diphenhydramine) approximately 30 - 60 minutes before each infusion of ocrelizumab to reduce the frequency and severity of infusion-related reactions (IRRs). The addition of an antipyretic (e.g., acetaminophen/ paracetamol) may also be considered.
Patients will undergo PET scan with 18F-DPA714 and MRI exams at different time points as mentioned in the assessment table.
Disease will be clinically monitored at different time points with classical tests including EDSS, MSFC, BICAMS.
Laboratory analyses on complete blood count, lymphocytes subsets count, neurofilament will be done. Analyses will not be limited to the above mentioned list.
Pregnancy tests and genetics will be done. An optional lumbar puncture will be performed at baseline to assess cytokinic profile predictive of disease evolution and cortical pathology. Patients who refuse to have a lumbar puncture can be included in the clinical trial if they have eligibility criteria.
TSPO polymorphism will be checked at baseline with other screening lab tests.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- The first dose of ocrelizumab will be administered as two 300-mg IV infusions (600 mg total) in 250 mL 0.9% sodium chloride each separated by 14 days (i.e., Days 1 and 15), followed by one 600-mg IV infusion in 500 mL 0.9% sodium chloride every subsequent doses (i.e., every 24 weeks) for 72 weeks.
| Arm | Type | Receives |
|---|---|---|
| Ocrelizumab | Experimental | Drug: OcrelizumabThe first dose of ocrelizumab will be administered as two 300-mg IV infusions (600 mg total) in 250 mL 0.9% sodium chloride each separated by 14 days (i.e., Days 1 and 15), followed by one 600-mg IV infusion in 500 mL 0.9% sodium chloride every subsequent doses (i.e., every 24 weeks) for 72 weeks. |
Who may qualify
- Ages
- 18 to 60 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (52 listed)
- Signed informed consent form
- Able to comply with the study protocol, in the investigator's judgment
- Social security registration
- Age 18 - 60 years, inclusive
- For women of childbearing potential: agreement to use an acceptable birth control method during the treatment period and for at least 12 months after the last dose of study drug.
Key exclusion criteria (50 listed)
- Inability to complete an MRI (contraindications for MRI include but are not restricted to weight ≥ 140 kg, pacemaker, cochlear implants, presence of foreign substances in the eye, intracranial vascular clips, surgery within 6 weeks of entry into the study, coronary stent implanted within 8 weeks prior to the time of the intended MRI, contraindication to gadoteric acid etc.).
- Impossibility to complete a PET scan: pregnancy, nuclear medicine irradiation in the year preceding baseline visit for clinical research and one year after the end of their participation in the study, lactation.
- Known presence of other neurological disorders, including but not limited to, the following:
- 1. Pregnancy or lactation 2. Any concomitant disease that may require chronic treatment with systemic corticosteroids or immunosuppressant drugs during the course of the study 3. History or currently active primary or secondary immunodeficiency 4. Lack of peripheral venous access 5. Significant, uncontrolled disease, such as cardiovascular (including cardiac arrhythmia), pulmonary (including obstructive pulmonary disease), renal, hepatic, endocrine or gastrointestinal or any other significant disease that may preclude patient from participating in the study 6. History of severe allergic or anaphylactic reactions to humanized or murine monoclonal antibodies 7. Congestive heart failure (New York Heart Association [NYHA] III or IV functional severity) 8. Known active bacterial, viral, fungal, mycobacterial infection or other infection [including tuberculosis [TB] or atypical mycobacterial disease (but excluding fungal infection of nail beds)] or any major episode of infection requiring hospitalization or treatment with i.v. antibiotics within 4 weeks prior to baseline visit or oral antibiotics within 2 weeks prior to baseline visit; Note: Active infections should be treated and effectively controlled before possible inclusion in the study 9. History or known presence of recurrent or chronic infection 10. History of malignancy, including solid tumors and hematological malignancies, except basal cell carcinoma, in situ squamous cell carcinoma of the skin, and in situ carcinoma of the cervix of the uterus that have been previously completely excised with documented, clear margins 11. History of alcohol or drug abuse within 24 weeks prior to baseline 12. History or laboratory evidence of coagulation disorders 13. History of major opportunistic infections (i.e. cryptococcosis, Pneumocystis pneumonia, progressive multifocal leukoencephalopathy [PML]) 14. History of recurrent aspiration pneumonia requiring antibiotic therapy 15. Hypersensitivity to the active substance or to any of the excipients (Sodium Acetate Trihydrate, Glacial Acetic Acid, Trehalose Dihydrate, Polysorbate 20, Water for Injection)
- Laboratory Findings:
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 |
|---|---|---|
| OcrelizumabThe first dose of ocrelizumab will be administered as two 300-mg IV infusions (600 mg total) in 250 mL 0.9% sodium chloride each separated by 14 days (i.e., Days 1 and 15), followed by one 600-mg IV infusion in 500 mL 0.9% sodium chloride every subsequent doses (i.e., every 24 weeks) for 72 weeks. | Drug | Ocrelizumab |
Primary outcome
Determine if ocrelizumab treatment is associated with a decrease in the extent of brain white matter microglial activation.
Time frame: from baseline to month 24
Percent change in the extent of 18FDPA714 positive voxels in the total white matter from baseline to month 24 in the whole cohort of MS patients.
8 secondary outcomes
Decrease of microglial activation as measured by [18F]DPA-714 PET in normal appearing white matter
Time frame: between baseline and months 6 and 24
decrease of microglial activation as measured by [18F]DPA-714 PET in the total white matter
Time frame: from baseline to months 24
decrease of microglial activation as measured by [18F]DPA-714 PET in white matter lesions
Time frame: between baseline and months 6 and 24
decrease of microglial activation as measured by [18F]DPA-714 PET in white matter perilesional areas
Time frame: between baseline to months 6 and 24
decrease of microglial activation as measured by [18F]DPA-714 PET in in number of plaques classified as chronic active
Time frame: from baseline to month 6 and month 24
decrease of microglial activation as measured by [18F]DPA-714 PET in number of plaques classified as smoldering plaques
Time frame: from baseline to month 6 and month 24
decrease of microglial activation as measured by [18F]DPA-714 PET in deep grey matter
Time frame: between baseline to months 6 and 24
decrease of microglial activation as measured by [18F]DPA-714 PET in cortical grey matter
Time frame: between baseline to months 6 and 24
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Sep 2023.
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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.
Bruno Stankoff, MD Ph.D principal investigator
Hôpital Saint-Antoine - Service de Neurologie
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Ocrelizumab in people with Multiple Sclerosis and Relapse, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.
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 52 inclusion and 50 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: status not confirmed, as of the sponsor's last update on 6 Sep 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Bruno Stankoff, MD Ph.D (0171970651, bruno.stankoff@aphp.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Determine if ocrelizumab treatment is associated with a decrease in the extent of brain white matter microglial activation. (time frame: from baseline to month 24). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 6 Sep 2023.