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REbif FLEXible Dosing in Early Multiple Sclerosis (MS)

A Phase III, Randomized, Double-blind, Placebo-controlled, Multicenter Clinical Trial of Rebif New Formulation (44 Microgram [Mcg] Three Times Weekly [Tiw] and 44 Mcg Once Weekly [ow]) in Subjects at High Risk of Converting to Multiple Sclerosis (REFLEX)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00404352
Acronym
REFLEX
Enrollment
517
Registered
2006-11-28
Start date
2006-11-30
Completion date
2011-07-31
Last updated
2014-01-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Multiple Sclerosis

Keywords

Rebif New Formulation, Clinical Isolated Syndrome, Multiple Sclerosis

Brief summary

The study is a 24 months randomized, double-blind, Placebo-controlled, multi-center clinical trial with an optional 12 months open label extension. The primary objective of the study is to evaluate the effect of fetal bovine serum \[FBS\]-free/human serum albumin \[HSA\]-free formulation of Interferon \[IFN\] beta-1a (RNF) 44 microgram (three times weekly and once weekly) versus placebo on the time to conversion to McDonald multiple sclerosis (MS) criteria (2005) in subjects with a first clinical demyelinating event at high risk of converting to MS. The main secondary objective of study is to evaluate the effect of RNF 44 microgram (three times weekly and once weekly) versus placebo on the Time to conversion to clinically definite MS (CDMS) in subjects with a first clinical demyelinating event at high risk of converting to MS. At the end of 24 month double-blind core REFLEX trial, subjects who will not convert to CDMS and decide to receive open-label (OL) treatment will be enrolled into an open-label, 12 month extension period to evaluate the effect of RNF 44 mcg three times weekly treatment on the time to conversion to McDonald MS and time to conversion to CDMS.

Interventions

DRUGRNF

Single dose of RNF administered subcutaneously three times weekly at least 48 hours apart at a starting dose of 8.8 microgram (mcg) for first 2 weeks followed by 22 mcg for next 2 weeks and finally 44 mcg until 24 months, or 36 months for patients enrolled in the OL extension.

DRUGPlacebo

Placebo was supplied as a transparent, sterile solution for injection in pre-filled syringes matching the RNF pre-filled syringes, each containing 0.5 mL.

Sponsors

Merck KGaA, Darmstadt, Germany
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
No

Inclusion criteria

* Single, first clinical event suggestive of MS within 60 days prior to study Day 1, which is the day of randomization (clock starts 24 hours after onset). The event must be a new neurological abnormality present for at least 24 hours, either mono- or polysymptomatic, other than a paresthesia, vegetative or cerebral dysfunction * At least two clinically silent lesions on the T2-weighted MRI scan, with a size of at least 3 millimeter (mm), at least one of which is ovoid or periventricular or infratentorial * EDSS 0 - 5.0 at least one time point during the screening period before start of treatment * 18 and 50 years old, inclusive * Willing to follow study procedures * Written informed consent * If female, subject must: * be neither pregnant nor breast-feeding nor attempting to conceive * use a highly effective method of contraception. A highly effective method of contraception is defined as those which result in a low failure rate (that is \[i.e.\] less than 1 percent \[%\] per year) when used consistently and correctly such as implants, injectables, combined oral contraceptives, some intrauterine devices (IUDs), sexual abstinence or vasectomised partner

Exclusion criteria

* Diagnosis of MS (per McDonald criteria 2005) * Any other disease that could better explain the subject's signs and symptoms * Complete transverse myelitis or bilateral optic neuritis * Subject uses or has used any other approved MS disease-modifying drug (DMD) * Any investigational drug or undergone an experimental procedure within 12 weeks prior to study Day 1 * Oral or systemic corticosteroids or adrenocorticotropic hormone (ACTH) within 30 days prior to study Day 1 * Total bilirubin greater than 2.5 times upper limit of normal (ULN) * Subject has total aspartate aminotransferase (AST) or alanine aminotransferase (ALT) or alkaline phosphatase (ALP) greater than 2.5 times the ULN * Inadequate bone marrow reserve, defined as a total white blood cell count less than 3.0 x 109 per liter (/L), platelet count less than 75 x 109/L, hemoglobin less than 100 gram per liter (g/L) * Current autoimmune disease * Major medical or psychiatric illness (including history of or current severe depressive disorders and/or suicidal ideation) that in the opinion of the investigator creates undue risk to the subject or could affect compliance with the study protocol * History of seizures not adequately controlled by treatment * Cardiac disease, such as angina, congestive heart failure or arrhythmia * Known allergy to IFN-beta or the excipient(s) of the study medication * Any condition that could interfere with the MRI evaluation; * Known allergy to gadolinium-diethylene triamine pentaacetic acid (DTPA) * Previously participated in this study * Participated in any clinical trial within the past 6 months * Any immunomodulatory or immunosuppressive therapy at any time prior to enrollment, including, but not limited to, the following products: any IFN, glatiramer acetate (Copolymer I), cyclophosphamide, cyclosporine, methotrexate, linomide, azathioprine, mitoxantrone, teriflunomide, laquinimod, cladribine, total lymphoid irradiation, anti-lymphocyte monoclonal antibody treatment (e.g. natalizumab, alemtuzumab/Campath, anti-cluster of differentiation 4 \[CD4\]), intravenous, immunoglobulins (Igs), cytokines or anti-cytokine therapy * Any experimental MS treatment prior to trial entry, including, but not limited to, any statins (if given to prevent MS) and pentoxyfylline * History of alcohol or drug abuse * Intolerance or any contraindication to both paracetamol (acetaminophen) and ibuprofen * Inability to administer subcutaneous injections either by self or by caregiver * Moderate to severe renal impairment

Design outcomes

Primary

MeasureTime frameDescription
Time to Conversion to Multiple Sclerosis (MS) According to the McDonald Criteria (2005)Various time points from randomization up to 24 monthsThe McDonald criteria use dissemination in time and space established by magnetic resonance image (MRI) findings to provide a clinical diagnosis for MS. Dissemination in time is established by a new time constant 2 (T2) or gadolinium-enhancing (Gd+) lesion found on a repeat MRI. Dissemination in space is established by the presence of any 3 of the following: 1 Gd+ lesion or 9 T2 bright lesions if there is no enhancement; greater than or equal to 1 infratentorial lesion; greater than or equal to 1 juxtacortical lesion; greater than or equal to 3 periventricular lesions.

Secondary

MeasureTime frameDescription
Time to Conversion to Clinically Definite Multiple Sclerosis (CDMS) Defined by Either a Second Attack or a 3-Month Sustained Increase (Greater Than or Equal to 1.5 Points) in the Expanded Disability Status Scale (EDSS) ScoreVarious time points from randomization up to 24 monthsCDMS was defined by the occurrence of a second exacerbation or relapse over 24 months in participants who presented with first clinical demyelinating event (FCDE) accompanied by an abnormal MRI scan. EDSS assesses disability in 8 functional systems. An overall score ranging from 0 (normal) to 10 (death due to MS) was calculated.
Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per ScanMonth 24 up to Month 36Number of CUA lesions, new T2 lesions, Gd+ lesions and new T1 hypointense lesions were measured by using MRI scans.
Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36Baseline, Month 36Change from baseline in lesion volume was measured by using MRI scans for T2 lesions, T1 hypointense lesions and (Gd+) lesions.
Change From Baseline in Expanded Disability Status Score (EDSS) Score at Month 36Baseline, Month 36EDSS assesses disability in 8 functional systems. An overall score ranging from 0 (normal) to 10 (death due to MS) was calculated. The change in EDSS at Month 36 was calculated as EDSS at Month 36 minus EDSS at baseline.

Countries

Argentina, Australia, Austria, Belgium, Bulgaria, Canada, Croatia, Czechia, Estonia, Finland, France, Germany, Greece, Israel, Italy, Latvia, Lebanon, Morocco, Poland, Portugal, Romania, Russia, Saudi Arabia, Serbia, Slovakia, Spain, Turkey (Türkiye)

Participant flow

Recruitment details

The participants were recruited in 78 centers across 28 countries for REFLEX study. REFLEX 12 months open label extension (OLE) was conducted at 11 active centers in 9 countries.

Participants by arm

ArmCount
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)
Single dose of fetal bovine serum \[FBS\]-free/human serum albumin \[HSA\]-free formulation of interferon \[IFN\]-beta-1a (RNF) injection administered subcutaneously three times weekly at least 48 hours apart at a starting dose of 8.8 microgram (mcg) for first 2 weeks followed by 22 mcg for next 2 weeks and finally 44 mcg until 24 months or until conversion to clinically definite multiple sclerosis (CDMS) whichever occurs first.
171
RNF 44 Mcg Once Weekly (DB Population)
Single dose of RNF injection administered subcutaneously once weekly plus 2 matching placebo doses at least 48 hours apart at a starting dose of 8.8 mcg for first 2 weeks followed by 22 mcg for next 2 weeks and finally 44 mcg until 24 months or until conversion to CDMS whichever occurs first.
175
Placebo (DB Population)
Single dose of matching placebo administered subcutaneously three times weekly at least 48 hours apart at a starting dose of 8.8 mcg for first 2 weeks followed by 22 mcg for next 2 weeks and finally 44 mcg until 24 months or until conversion to CDMS whichever occurs first.
171
Total517

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008
Double Blind (up to 24 Month)Adverse Event546000000
Double Blind (up to 24 Month)Death001000000
Double Blind (up to 24 Month)Disease progression302000000
Double Blind (up to 24 Month)Lost to Follow-up121000000
Double Blind (up to 24 Month)Other010000000
Double Blind (up to 24 Month)Physician Decision001000000
Double Blind (up to 24 Month)Poor compliance100000000
Double Blind (up to 24 Month)Pregnancy002000000
Double Blind (up to 24 Month)Randomized but not treated020000000
Double Blind (up to 24 Month)Switched to open label phase313059000000
Double Blind (up to 24 Month)Withdrawal by Subject1187000000
Open Label Extension (up to 36 Months)Adverse Event000000110
Open Label Extension (up to 36 Months)Other000000002
Open Label (up to 24 Month)Adverse Event000211000
Open Label (up to 24 Month)Disease progression000100000
Open Label (up to 24 Month)Lost to Follow-up000010000
Open Label (up to 24 Month)Pregnancy000001000
Open Label (up to 24 Month)Withdrawal by Subject000005000

Baseline characteristics

CharacteristicRNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)RNF 44 Mcg Once Weekly (DB Population)Placebo (DB Population)Total
Age, Continuous30.6 years
STANDARD_DEVIATION 8.5
30.7 years
STANDARD_DEVIATION 8.1
30.9 years
STANDARD_DEVIATION 7.9
30.7 years
STANDARD_DEVIATION 8.2
Age, Customized
Greater than or equal to 30 years
85 participants89 participants84 participants258 participants
Age, Customized
Less than 30 years
86 participants86 participants87 participants259 participants
Race/Ethnicity, Customized
Asian
0 participants0 participants0 participants0 participants
Race/Ethnicity, Customized
Black
0 participants1 participants0 participants1 participants
Race/Ethnicity, Customized
Other
0 participants0 participants0 participants0 participants
Race/Ethnicity, Customized
White
171 participants174 participants171 participants516 participants
Sex: Female, Male
Female
114 Participants106 Participants112 Participants332 Participants
Sex: Female, Male
Male
57 Participants69 Participants59 Participants185 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
149 / 171156 / 173133 / 17120 / 3120 / 3047 / 593 / 42 / 55 / 11
serious
Total, serious adverse events
6 / 1718 / 17312 / 1711 / 310 / 301 / 590 / 40 / 50 / 11

Outcome results

Primary

Time to Conversion to Multiple Sclerosis (MS) According to the McDonald Criteria (2005)

The McDonald criteria use dissemination in time and space established by MRI findings to provide a clinical diagnosis for MS. Dissemination in time is established by a T2 or Gd+ lesion found on a repeat MRI. Dissemination in space is established by the presence of any 3 of the following: 1 Gd+ lesion or 9 T2 bright lesions if there is no enhancement; greater than or equal to 1 infratentorial lesion; greater than or equal to 1 juxtacortical lesion; greater than or equal to 3 periventricular lesions.

Time frame: Various time points from randomization up to 36 months

Population: Open label (OL) ITT population included all participants who were randomized at baseline in core REFLEX trial and entered the 12 months OLE period.

ArmMeasureValue (MEDIAN)
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Time to Conversion to Multiple Sclerosis (MS) According to the McDonald Criteria (2005)NA days
RNF 44 Mcg Once Weekly (DB Population)Time to Conversion to Multiple Sclerosis (MS) According to the McDonald Criteria (2005)NA days
Placebo (DB Population)Time to Conversion to Multiple Sclerosis (MS) According to the McDonald Criteria (2005)NA days
Primary

Time to Conversion to Multiple Sclerosis (MS) According to the McDonald Criteria (2005)

The McDonald criteria use dissemination in time and space established by magnetic resonance image (MRI) findings to provide a clinical diagnosis for MS. Dissemination in time is established by a new time constant 2 (T2) or gadolinium-enhancing (Gd+) lesion found on a repeat MRI. Dissemination in space is established by the presence of any 3 of the following: 1 Gd+ lesion or 9 T2 bright lesions if there is no enhancement; greater than or equal to 1 infratentorial lesion; greater than or equal to 1 juxtacortical lesion; greater than or equal to 3 periventricular lesions.

Time frame: Various time points from randomization up to 24 months

Population: Intent-to-treat (ITT) population included all participants who were randomized to the assigned study treatment.

ArmMeasureValue (MEDIAN)
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Time to Conversion to Multiple Sclerosis (MS) According to the McDonald Criteria (2005)310 days
RNF 44 Mcg Once Weekly (DB Population)Time to Conversion to Multiple Sclerosis (MS) According to the McDonald Criteria (2005)182 days
Placebo (DB Population)Time to Conversion to Multiple Sclerosis (MS) According to the McDonald Criteria (2005)97 days
p-value: <0.001Log Rank
p-value: 0.008Log Rank
p-value: 0.009Log Rank
Secondary

Change From Baseline in Expanded Disability Status Score (EDSS) Score at Month 36

EDSS assesses disability in 8 functional systems. An overall score ranging from 0 (normal) to 10 (death due to MS) was calculated. The change in EDSS at Month 36 was calculated as EDSS at Month 36 minus EDSS at baseline.

Time frame: Baseline, Month 36

Population: OL ITT population included all participants who were randomized at baseline in core REFLEX trial and entered the 12 months OLE period. n signifies those participants who were evaluated for this measure at the specified time point for each arm group respectively.

ArmMeasureGroupValue (MEAN)Dispersion
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Change From Baseline in Expanded Disability Status Score (EDSS) Score at Month 36Baseline (n=4,5,11)1.88 unit on a scaleStandard Deviation 0.85
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Change From Baseline in Expanded Disability Status Score (EDSS) Score at Month 36Change at Month 36 (n=2,4,8)-0.25 unit on a scaleStandard Deviation 1.06
RNF 44 Mcg Once Weekly (DB Population)Change From Baseline in Expanded Disability Status Score (EDSS) Score at Month 36Baseline (n=4,5,11)1.60 unit on a scaleStandard Deviation 0.96
RNF 44 Mcg Once Weekly (DB Population)Change From Baseline in Expanded Disability Status Score (EDSS) Score at Month 36Change at Month 36 (n=2,4,8)-0.63 unit on a scaleStandard Deviation 0.48
Placebo (DB Population)Change From Baseline in Expanded Disability Status Score (EDSS) Score at Month 36Baseline (n=4,5,11)1.64 unit on a scaleStandard Deviation 0.67
Placebo (DB Population)Change From Baseline in Expanded Disability Status Score (EDSS) Score at Month 36Change at Month 36 (n=2,4,8)-0.50 unit on a scaleStandard Deviation 0.65
Secondary

Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36

Change from baseline in lesion volume was measured by using MRI scans for T2 lesions, T1 hypointense lesions and (Gd+) lesions.

Time frame: Baseline, Month 36

Population: OL ITT population included all participants who were randomized at baseline in core REFLEX trial and entered the 12 months OLE period. n signifies those participants who were evaluated for this measure at the specified time point for each arm group respectively.

ArmMeasureGroupValue (MEAN)Dispersion
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36T2 lesion volume at Baseline (n=4,5,11)675.20 cubic millimeter (mm^3)Standard Deviation 940.87
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36T2 lesion volume change at Month 36 (n=2,4,8)180.25 cubic millimeter (mm^3)Standard Deviation 198.34
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36T1 lesion volume at Baseline (n=4,5,11)30.05 cubic millimeter (mm^3)Standard Deviation 60.1
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36T1 lesion volume change at Month 36 (n=2,4,8)55.75 cubic millimeter (mm^3)Standard Deviation 78.84
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36Gd+ lesion volume at Baseline (n=4,5,11)103.70 cubic millimeter (mm^3)Standard Deviation 151.17
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36Gd+ lesion volume change at Month 36 (n=2,4,8)-47.20 cubic millimeter (mm^3)Standard Deviation 66.75
RNF 44 Mcg Once Weekly (DB Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36Gd+ lesion volume change at Month 36 (n=2,4,8)0.00 cubic millimeter (mm^3)Standard Deviation 0
RNF 44 Mcg Once Weekly (DB Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36T2 lesion volume at Baseline (n=4,5,11)1703.48 cubic millimeter (mm^3)Standard Deviation 1324.41
RNF 44 Mcg Once Weekly (DB Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36T1 lesion volume change at Month 36 (n=2,4,8)216.68 cubic millimeter (mm^3)Standard Deviation 310.06
RNF 44 Mcg Once Weekly (DB Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36Gd+ lesion volume at Baseline (n=4,5,11)0.00 cubic millimeter (mm^3)Standard Deviation 0
RNF 44 Mcg Once Weekly (DB Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36T2 lesion volume change at Month 36 (n=2,4,8)-22.63 cubic millimeter (mm^3)Standard Deviation 382.14
RNF 44 Mcg Once Weekly (DB Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36T1 lesion volume at Baseline (n=4,5,11)302.70 cubic millimeter (mm^3)Standard Deviation 358.58
Placebo (DB Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36T2 lesion volume change at Month 36 (n=2,4,8)-1155.63 cubic millimeter (mm^3)Standard Deviation 3348.36
Placebo (DB Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36T1 lesion volume at Baseline (n=4,5,11)488.72 cubic millimeter (mm^3)Standard Deviation 589.06
Placebo (DB Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36Gd+ lesion volume change at Month 36 (n=2,4,8)-246.08 cubic millimeter (mm^3)Standard Deviation 848.99
Placebo (DB Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36T1 lesion volume change at Month 36 (n=2,4,8)138.89 cubic millimeter (mm^3)Standard Deviation 339.99
Placebo (DB Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36T2 lesion volume at Baseline (n=4,5,11)3533.37 cubic millimeter (mm^3)Standard Deviation 3914.98
Placebo (DB Population)Change From Baseline in Time Constant 2 (T2) Lesion Volume , Time Constant 1 (T1) Hypointense Lesion Volume and Gadolinium Enhanced (Gd+) Lesion Volume at Month 36Gd+ lesion volume at Baseline (n=4,5,11)287.15 cubic millimeter (mm^3)Standard Deviation 649.68
Secondary

Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per Scan

Number of CUA lesions, new T2 lesions, Gd+ lesions and new T1 hypointense lesions were measured by using MRI scans.

Time frame: Month 24 up to Month 36

Population: OL ITT population included all participants who were randomized at baseline in core REFLEX trial and entered the 12 months OLE period. n signifies those participants who were evaluated for this measure at the specified time point for each arm group respectively.

ArmMeasureGroupValue (MEAN)Dispersion
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per ScanCUA lesions (n=3,5,9)0.33 lesionsStandard Deviation 0.58
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per ScanNew T2 lesions (n=3,5,9)0.17 lesionsStandard Deviation 0.29
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per ScanNew Gd+ lesions (n=3,5,9)0.17 lesionsStandard Deviation 0.29
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per ScanNew T1 Hypointense lesions (n=3,5,9)0.17 lesionsStandard Deviation 0.29
RNF 44 Mcg Once Weekly (DB Population)Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per ScanNew T1 Hypointense lesions (n=3,5,9)0.00 lesionsStandard Deviation 0
RNF 44 Mcg Once Weekly (DB Population)Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per ScanCUA lesions (n=3,5,9)0.00 lesionsStandard Deviation 0
RNF 44 Mcg Once Weekly (DB Population)Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per ScanNew Gd+ lesions (n=3,5,9)0.00 lesionsStandard Deviation 0
RNF 44 Mcg Once Weekly (DB Population)Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per ScanNew T2 lesions (n=3,5,9)0.00 lesionsStandard Deviation 0
Placebo (DB Population)Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per ScanNew T1 Hypointense lesions (n=3,5,9)0.56 lesionsStandard Deviation 0.88
Placebo (DB Population)Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per ScanNew T2 lesions (n=3,5,9)0.94 lesionsStandard Deviation 1.61
Placebo (DB Population)Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per ScanNew Gd+ lesions (n=3,5,9)0.56 lesionsStandard Deviation 1.21
Placebo (DB Population)Mean Number of Combined Unique Active (CUA) Lesions, New Time Constant 2 (T2) Lesions, Gadolinium Enhanced (Gd+) Lesions and New Time Constant 1 (T1) Hypointense Lesions Per Participant Per ScanCUA lesions (n=3,5,9)1.56 lesionsStandard Deviation 2.93
Secondary

Time to Conversion to Clinically Definite Multiple Sclerosis (CDMS) Defined by Either a Second Attack or a 3-Month Sustained Increase (Greater Than or Equal to 1.5 Points) in the Expanded Disability Status Scale (EDSS) Score

CDMS was defined by the occurrence of a second exacerbation or relapse over 36 months in participants who presented with FCDE accompanied by an abnormal MRI scan. EDSS assesses disability in 8 functional systems. An overall score ranging from 0 (normal) to 10 (death due to MS) was calculated.

Time frame: Various time points from randomization up to 36 months

Population: OL ITT population included all participants who were randomized at baseline in core REFLEX trial and entered the 12 months OLE period.

ArmMeasureValue (MEDIAN)
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Time to Conversion to Clinically Definite Multiple Sclerosis (CDMS) Defined by Either a Second Attack or a 3-Month Sustained Increase (Greater Than or Equal to 1.5 Points) in the Expanded Disability Status Scale (EDSS) ScoreNA days
RNF 44 Mcg Once Weekly (DB Population)Time to Conversion to Clinically Definite Multiple Sclerosis (CDMS) Defined by Either a Second Attack or a 3-Month Sustained Increase (Greater Than or Equal to 1.5 Points) in the Expanded Disability Status Scale (EDSS) ScoreNA days
Placebo (DB Population)Time to Conversion to Clinically Definite Multiple Sclerosis (CDMS) Defined by Either a Second Attack or a 3-Month Sustained Increase (Greater Than or Equal to 1.5 Points) in the Expanded Disability Status Scale (EDSS) ScoreNA days
Secondary

Time to Conversion to Clinically Definite Multiple Sclerosis (CDMS) Defined by Either a Second Attack or a 3-Month Sustained Increase (Greater Than or Equal to 1.5 Points) in the Expanded Disability Status Scale (EDSS) Score

CDMS was defined by the occurrence of a second exacerbation or relapse over 24 months in participants who presented with first clinical demyelinating event (FCDE) accompanied by an abnormal MRI scan. EDSS assesses disability in 8 functional systems. An overall score ranging from 0 (normal) to 10 (death due to MS) was calculated.

Time frame: Various time points from randomization up to 24 months

Population: ITT population included all participants who were randomized to the assigned study treatment.

ArmMeasureValue (MEDIAN)
RNF 44 Mcg Three Times Weekly (Double Blind [DB] Population)Time to Conversion to Clinically Definite Multiple Sclerosis (CDMS) Defined by Either a Second Attack or a 3-Month Sustained Increase (Greater Than or Equal to 1.5 Points) in the Expanded Disability Status Scale (EDSS) ScoreNA days
RNF 44 Mcg Once Weekly (DB Population)Time to Conversion to Clinically Definite Multiple Sclerosis (CDMS) Defined by Either a Second Attack or a 3-Month Sustained Increase (Greater Than or Equal to 1.5 Points) in the Expanded Disability Status Scale (EDSS) ScoreNA days
Placebo (DB Population)Time to Conversion to Clinically Definite Multiple Sclerosis (CDMS) Defined by Either a Second Attack or a 3-Month Sustained Increase (Greater Than or Equal to 1.5 Points) in the Expanded Disability Status Scale (EDSS) ScoreNA days
p-value: <0.001Log Rank
p-value: 0.002Log Rank
p-value: 0.774Log Rank

Source: ClinicalTrials.gov · Data processed: Mar 27, 2026