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Long Term Safety of Teriflunomide When Added to Interferon-Beta or Glatiramer Acetate in Patients With Multiple Sclerosis

Long-term Extension of the Multinational, Double-blind, Placebo Controlled Studies PDY6045 and PDY6046 to Document the Safety of Teriflunomide When Added to Treatment With Interferon-Beta or Glatiramer Acetate in Patients With Multiple Sclerosis With Relapses

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00811395
Enrollment
182
Registered
2008-12-19
Start date
2007-10-31
Completion date
2010-04-30
Last updated
2012-12-31

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

Conditions

Multiple Sclerosis

Brief summary

The primary objective was to evaluate the long-term safety and tolerability of teriflunomide when added to treatment with interferon-β \[IFN-β\] or glatiramer Acetate \[GA\] in patients with multiple sclerosis \[MS\] with relapses. Secondary objectives were to evaluate the long-term effect on relapse rate, disability progression and Magnetic Resonance Imaging \[MRI\] parameters. This study is the extension study of the PDY6045 (NCT00489489) and PDY6046 (NCT00475865) studies. Participants who successfully completed the initial study were offered to continue their treatment (same compound, same dose) for 24 additional weeks.

Detailed description

The duration of the extension study per participants was 40 weeks broken down as follows: * 24-week double-blind treatment period, * 16-week post-treatment elimination follow-up period.

Interventions

DRUGTeriflunomide

Film-coated tablet Oral administration

Film-coated tablet Oral administration

DRUGInterferon-β [IFN-β]

Powder for reconstitution, of any licensed strength for either intramuscular or subcutaneous injection

DRUGGlatiramer Acetate [GA]

Solution in prefilled syringe for subcutaneous injection

Sponsors

Sanofi
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
No

Inclusion criteria

* PDY6045 or PDY6046 participant who: * completed the week 24 visit of either study PDY6045 or PDY6046, * was still meeting eligibility criteria for receiving treatment, * had agreed to continue stable dose of Interferon-β \[IFN-β\] or Glatiramer Acetate \[GA\] and consented to continue on treatment.

Exclusion criteria

* Any known condition or circumstance that would have prevented in the investigator's opinion, compliance or completion of the study The above information is not intended to contain all considerations relevant to patient's potential participation in a clinical trial.

Design outcomes

Primary

MeasureTime frameDescription
Overview of Adverse Events [AE]from first study drug intake in PDY6045/PDY6046 study up to 112 days after last intake in initial study or in the extension study, whichever occured last (64 weeks max)AE are any unfavorable and unintended sign, symptom, syndrome, or illness observed by the investigator or reported by the participant during the study.
Overview of AE With Potential Risk of Occurencefrom first study drug intake in PDY6045/PDY6046 study up to 112 days after last intake in initial study or in the extension study, whichever occured last (64 weeks max)AE with potential risk of occurrence were defined as follows: * Hepatic disorders; * Immune effects, mainly effects on bone marrow and infection; * Pancreatic disorders; * Malignancy; * Skin disorders, mainly hair loss and hair thinning; * Pulmonary disorders; * Hypertension; * Peripheral neuropathy; * Psychiatric disorders; * Hypersensitivity.
Liver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]from first study drug intake in PDY6045/PDY6046 study up to 112 days after last intake in initial study or in the extension study, whichever occured last (64 weeks max)PCSA values are abnormal values considered medically important by the Sponsor according to predefined criteria based on literature review. Hepatic parameters thresholds were defined as follows: * Alanine Aminotransferase \[ALT\] \>3, 5, 10 or 20 Upper Normal Limit \[ULN\]; * Aspartate aminotransferase \[AST\] \>3, 5, 10 or 20 ULN; * Alkaline Phosphatase \>1.5 ULN; * Total Bilirubin \[TB\] \>1.5 or 2 ULN; * ALT \>3 ULN and TB \>2 ULN;

Secondary

MeasureTime frameDescription
Cerebral Magnetic Resonance Imaging [MRI] Assessment: Change From Baseline in Total Lesion Volume (Burden of Disease)baseline (before randomization in PDY6045 or PDY6046) and 48 weeksTotal lesion volume is the sum of the total volume of all T2-lesions and the total volume all T1-hypointense post-gadolinium lesions measured through T2/proton density scan analysis and gadolinium-enhanced T1 scan analysis. Least-square means were estimated using two Mixed-effect models with repeated measures \[MMRM\] on cubic root transformed volume data: * Model 1 (IFN-β groups): treatment group, region of enrollment, IFN-β dose level, visit, treatment-by-visit interaction, baseline value (cubic root transformed), and baseline-by-visit interaction as factors; * Model 2 (GA groups): treatment group, region of enrollment, visit, treatment-by-visit interaction, baseline value (cubic root transformed), and baseline-by-visit interaction as factors.
Annualized Relapse Rate [ARR]: Poisson Regression Estimates48 weeksARR is obtained from the total number of confirmed relapses that occured during the treatment period divided by the sum of the treatment durations. Each episode of relapse - appearance, or worsening of a clinical symptom that was stable for at least 30 days, that persisted for a minimum of 24 hours in the absence of fever - was to be confirmed by an increase in Expanded Disability Status Scale \[EDSS\] score or Functional System scores. To account for the different treatment durations among participants, two Poisson regression models with robust error variance were used (total number of confirmed relapses as response variable, log-transformed treatment duration as offset variable and: * Model 1 (IFN-β groups): treatment group, region of enrollment and IFN-β dose level as covariates * Model 2 (GA groups): treatment group and region of enrollment as covariates)
Cerebral MRI Assessment: Total Volume of Gd-enhancing T1-lesions Per Scan48 weeksTotal volume of Gd-enhancing T1-lesions per scan is obtained from the sum of the volumes of Gd-enhancing T1-lesions observed during the study divided by the total number of scans performed during the study.
Cerebral MRI Assessment: Number of Gd-enhancing T1-lesions Per Scan (Poisson Regression Estimates)48 weeksNumber of Gd-enhancing T1-lesions per scan is obtained from the total number of Gd-enhancing T1-lesions observed during the study divided by the total number of scans performed during the study. To account for the different number of scans among participants, two Poisson regression models with robust error variance were used (total number of Gd-enhancing T1-lesions as response variable, log-transformed number of scans as offset variable and: * Model 1 (IFN-β groups): Treatment group, region of enrollment, IFN-β dose level and baseline number of Gd-enhancing T1-lesions as covariates * Model 2 (GA groups): Treatment group, region of enrollment and baseline number of Gd-enhancing T1-lesions as covariates)
Overview of 12-week Sustained Disability Progression48 weeks12-week sustained disability progression was defined as an increase from baseline of at least 1-point in EDSS score (at least 0.5-point for participants with baseline EDSS score \>5.5) that persisted for at least 12 weeks. If no disability progression was observed on or before last EDSS evaluation before study drug discontinuation, then the participant was considered as free of disability progression.
Time to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at Timepoints48 weeksProbability of disability progression at 24 and 48 weeks was estimated using Kaplan-Meier method on the time to disability progression defined as the time from randomization to first EDSS increase. Participants free of disability progression were censored at the date of the last on-treatment EDSS evaluation. Kaplan-Meier method consists in computing probabilities of non occurrence of event at any observed time of event and multiplying successive probabilities for time ≤t by any earlier computed probabilities to estimate the probability of being event-free for the amount of time t. Probability of event at time t is 1 minus the probability of being event-free for the amount of time t.

Countries

Austria, Canada, Germany, Italy, Spain, United Kingdom, United States

Participant flow

Recruitment details

107 and 110 participants who successfully completed 24-week visit in, respectively, PDY6045 and PDY6046 studies, were offered to continue their treatment in this extension study. After signature of the informed consent and confirmation of selection criteria, 86 and 96 participants entered the extension study.

Pre-assignment details

An Interactive Voice Response System was used to allocate kits containing the same treatment as in the initial study. Analysis included all participants randomized in the initial studies and all data collected from randomization according to intent-to-treat principal.

Participants by arm

ArmCount
Placebo + IFN-β
Placebo (for teriflunomide) once daily concomitantly with interferon-β \[IFN-β\]
41
Teriflunomide 7 mg + IFN-β
Teriflunomide 7 mg once daily concomitantly with interferon-β \[IFN-β\]
37
Teriflunomide 14 mg + IFN-β
Teriflunomide 14 mg once daily concomitantly with interferon-β \[IFN-β\]
38
Placebo + GA
Placebo (for teriflunomide) once daily concomitantly with Glatiramer Acetate \[GA\]
40
Teriflunomide 7 mg + GA
Teriflunomide 7 mg once daily concomitantly with Glatiramer Acetate \[GA\]
42
Teriflunomide 14 mg + GA
Teriflunomide 14 mg once daily concomitantly with Glatiramer Acetate \[GA\]
41
Total239

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Extension TreatmentAdverse Event122201
Extension TreatmentOther than above001000
Extension TreatmentParticipant did not wish to continue030101
Extension TreatmentProgressive disease110000

Baseline characteristics

CharacteristicPlacebo + IFN-βTeriflunomide 7 mg + IFN-βTeriflunomide 14 mg + IFN-βPlacebo + GATeriflunomide 7 mg + GATeriflunomide 14 mg + GATotal
Age, Customized
<38 years
17 participants9 participants15 participants11 participants12 participants13 participants77 participants
Age, Customized
>=38 years
24 participants28 participants23 participants29 participants30 participants28 participants162 participants
Region of Enrollment
Europe
28 participants25 participants24 participants22 participants22 participants22 participants143 participants
Region of Enrollment
North America
13 participants12 participants14 participants18 participants20 participants19 participants96 participants
Sex: Female, Male
Female
31 Participants25 Participants25 Participants31 Participants33 Participants33 Participants178 Participants
Sex: Female, Male
Male
10 Participants12 Participants13 Participants9 Participants9 Participants8 Participants61 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
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
28 / 4133 / 3732 / 3834 / 4030 / 4234 / 41
serious
Total, serious adverse events
2 / 414 / 371 / 386 / 405 / 422 / 41

Outcome results

Primary

Liver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]

PCSA values are abnormal values considered medically important by the Sponsor according to predefined criteria based on literature review. Hepatic parameters thresholds were defined as follows: * Alanine Aminotransferase \[ALT\] \>3, 5, 10 or 20 Upper Normal Limit \[ULN\]; * Aspartate aminotransferase \[AST\] \>3, 5, 10 or 20 ULN; * Alkaline Phosphatase \>1.5 ULN; * Total Bilirubin \[TB\] \>1.5 or 2 ULN; * ALT \>3 ULN and TB \>2 ULN;

Time frame: from first study drug intake in PDY6045/PDY6046 study up to 112 days after last intake in initial study or in the extension study, whichever occured last (64 weeks max)

Population: All randomized and treated participants; Participants were included in the treatment group according to the drug actually received.

ArmMeasureGroupValue (NUMBER)
Placebo + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- ALT >10 ULN0 participants
Placebo + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- ALT >5 ULN1 participants
Placebo + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]ALT >3 ULN2 participants
Placebo + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]AST >3 ULN1 participants
Placebo + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- AST >5 ULN1 participants
Placebo + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]Alkaline Phosphatase >1.5 ULN1 participants
Placebo + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]TB >1.5 ULN0 participants
Placebo + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]ALT >3 ULN and TB >2 ULN0 participants
Teriflunomide 7 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]AST >3 ULN0 participants
Teriflunomide 7 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]ALT >3 ULN and TB >2 ULN0 participants
Teriflunomide 7 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]ALT >3 ULN1 participants
Teriflunomide 7 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]TB >1.5 ULN0 participants
Teriflunomide 7 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]Alkaline Phosphatase >1.5 ULN0 participants
Teriflunomide 7 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- ALT >10 ULN0 participants
Teriflunomide 7 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- ALT >5 ULN0 participants
Teriflunomide 7 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- AST >5 ULN0 participants
Teriflunomide 14 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- ALT >5 ULN1 participants
Teriflunomide 14 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- ALT >10 ULN0 participants
Teriflunomide 14 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]AST >3 ULN1 participants
Teriflunomide 14 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]ALT >3 ULN and TB >2 ULN0 participants
Teriflunomide 14 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- AST >5 ULN0 participants
Teriflunomide 14 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]Alkaline Phosphatase >1.5 ULN0 participants
Teriflunomide 14 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]TB >1.5 ULN0 participants
Teriflunomide 14 mg + IFN-βLiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]ALT >3 ULN3 participants
Placebo + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]TB >1.5 ULN0 participants
Placebo + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]Alkaline Phosphatase >1.5 ULN0 participants
Placebo + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- AST >5 ULN0 participants
Placebo + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]ALT >3 ULN1 participants
Placebo + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- ALT >10 ULN1 participants
Placebo + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]AST >3 ULN1 participants
Placebo + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]ALT >3 ULN and TB >2 ULN0 participants
Placebo + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- ALT >5 ULN1 participants
Teriflunomide 7 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]ALT >3 ULN and TB >2 ULN0 participants
Teriflunomide 7 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]ALT >3 ULN0 participants
Teriflunomide 7 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- AST >5 ULN0 participants
Teriflunomide 7 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]Alkaline Phosphatase >1.5 ULN0 participants
Teriflunomide 7 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]TB >1.5 ULN0 participants
Teriflunomide 7 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- ALT >5 ULN0 participants
Teriflunomide 7 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- ALT >10 ULN0 participants
Teriflunomide 7 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]AST >3 ULN0 participants
Teriflunomide 14 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]ALT >3 ULN and TB >2 ULN0 participants
Teriflunomide 14 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- AST >5 ULN0 participants
Teriflunomide 14 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- ALT >10 ULN0 participants
Teriflunomide 14 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]AST >3 ULN0 participants
Teriflunomide 14 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]Alkaline Phosphatase >1.5 ULN0 participants
Teriflunomide 14 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]- ALT >5 ULN1 participants
Teriflunomide 14 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]TB >1.5 ULN0 participants
Teriflunomide 14 mg + GALiver Function: Number of Participants With Potentially Clinically Significant Abnormalities [PCSA]ALT >3 ULN1 participants
Primary

Overview of Adverse Events [AE]

AE are any unfavorable and unintended sign, symptom, syndrome, or illness observed by the investigator or reported by the participant during the study.

Time frame: from first study drug intake in PDY6045/PDY6046 study up to 112 days after last intake in initial study or in the extension study, whichever occured last (64 weeks max)

Population: All randomized and treated participants; Participants were included in the treatment group according to the drug actually received.

ArmMeasureGroupValue (NUMBER)
Placebo + IFN-βOverview of Adverse Events [AE]- AE leading to death0 participants
Placebo + IFN-βOverview of Adverse Events [AE]- serious AE2 participants
Placebo + IFN-βOverview of Adverse Events [AE]- AE leading to study drug discontinuation2 participants
Placebo + IFN-βOverview of Adverse Events [AE]Any AE35 participants
Teriflunomide 7 mg + IFN-βOverview of Adverse Events [AE]- AE leading to death0 participants
Teriflunomide 7 mg + IFN-βOverview of Adverse Events [AE]Any AE35 participants
Teriflunomide 7 mg + IFN-βOverview of Adverse Events [AE]- serious AE4 participants
Teriflunomide 7 mg + IFN-βOverview of Adverse Events [AE]- AE leading to study drug discontinuation3 participants
Teriflunomide 14 mg + IFN-βOverview of Adverse Events [AE]- serious AE1 participants
Teriflunomide 14 mg + IFN-βOverview of Adverse Events [AE]- AE leading to death0 participants
Teriflunomide 14 mg + IFN-βOverview of Adverse Events [AE]- AE leading to study drug discontinuation3 participants
Teriflunomide 14 mg + IFN-βOverview of Adverse Events [AE]Any AE33 participants
Placebo + GAOverview of Adverse Events [AE]- serious AE6 participants
Placebo + GAOverview of Adverse Events [AE]Any AE39 participants
Placebo + GAOverview of Adverse Events [AE]- AE leading to death0 participants
Placebo + GAOverview of Adverse Events [AE]- AE leading to study drug discontinuation2 participants
Teriflunomide 7 mg + GAOverview of Adverse Events [AE]- AE leading to death0 participants
Teriflunomide 7 mg + GAOverview of Adverse Events [AE]Any AE40 participants
Teriflunomide 7 mg + GAOverview of Adverse Events [AE]- serious AE5 participants
Teriflunomide 7 mg + GAOverview of Adverse Events [AE]- AE leading to study drug discontinuation3 participants
Teriflunomide 14 mg + GAOverview of Adverse Events [AE]- AE leading to study drug discontinuation5 participants
Teriflunomide 14 mg + GAOverview of Adverse Events [AE]Any AE38 participants
Teriflunomide 14 mg + GAOverview of Adverse Events [AE]- AE leading to death0 participants
Teriflunomide 14 mg + GAOverview of Adverse Events [AE]- serious AE2 participants
Primary

Overview of AE With Potential Risk of Occurence

AE with potential risk of occurrence were defined as follows: * Hepatic disorders; * Immune effects, mainly effects on bone marrow and infection; * Pancreatic disorders; * Malignancy; * Skin disorders, mainly hair loss and hair thinning; * Pulmonary disorders; * Hypertension; * Peripheral neuropathy; * Psychiatric disorders; * Hypersensitivity.

Time frame: from first study drug intake in PDY6045/PDY6046 study up to 112 days after last intake in initial study or in the extension study, whichever occured last (64 weeks max)

Population: All randomized and treated participants; Participants were included in the treatment group according to the drug actually received.

ArmMeasureGroupValue (NUMBER)
Placebo + IFN-βOverview of AE With Potential Risk of Occurence- Pulmonary disorder AE0 participants
Placebo + IFN-βOverview of AE With Potential Risk of Occurence- Malignancy AE0 participants
Placebo + IFN-βOverview of AE With Potential Risk of Occurence- Hypersensitivity AE6 participants
Placebo + IFN-βOverview of AE With Potential Risk of Occurence- Peripheral neuropathy AE5 participants
Placebo + IFN-βOverview of AE With Potential Risk of Occurence- Hair loss / hair thinning AE1 participants
Placebo + IFN-βOverview of AE With Potential Risk of Occurence- Hepatic disorder AE7 participants
Placebo + IFN-βOverview of AE With Potential Risk of OccurenceAny AE with potential risk of occurence28 participants
Placebo + IFN-βOverview of AE With Potential Risk of Occurence- Immune effects related AE16 participants
Placebo + IFN-βOverview of AE With Potential Risk of Occurence- Pancreatic disorder AE8 participants
Placebo + IFN-βOverview of AE With Potential Risk of Occurence- Hypertension-related AE1 participants
Placebo + IFN-βOverview of AE With Potential Risk of Occurence- Psychiatric disorder AE1 participants
Teriflunomide 7 mg + IFN-βOverview of AE With Potential Risk of Occurence- Psychiatric disorder AE1 participants
Teriflunomide 7 mg + IFN-βOverview of AE With Potential Risk of Occurence- Pulmonary disorder AE0 participants
Teriflunomide 7 mg + IFN-βOverview of AE With Potential Risk of Occurence- Pancreatic disorder AE5 participants
Teriflunomide 7 mg + IFN-βOverview of AE With Potential Risk of Occurence- Malignancy AE0 participants
Teriflunomide 7 mg + IFN-βOverview of AE With Potential Risk of Occurence- Immune effects related AE21 participants
Teriflunomide 7 mg + IFN-βOverview of AE With Potential Risk of Occurence- Hypersensitivity AE4 participants
Teriflunomide 7 mg + IFN-βOverview of AE With Potential Risk of Occurence- Peripheral neuropathy AE3 participants
Teriflunomide 7 mg + IFN-βOverview of AE With Potential Risk of Occurence- Hypertension-related AE4 participants
Teriflunomide 7 mg + IFN-βOverview of AE With Potential Risk of OccurenceAny AE with potential risk of occurence30 participants
Teriflunomide 7 mg + IFN-βOverview of AE With Potential Risk of Occurence- Hair loss / hair thinning AE3 participants
Teriflunomide 7 mg + IFN-βOverview of AE With Potential Risk of Occurence- Hepatic disorder AE11 participants
Teriflunomide 14 mg + IFN-βOverview of AE With Potential Risk of Occurence- Hair loss / hair thinning AE4 participants
Teriflunomide 14 mg + IFN-βOverview of AE With Potential Risk of Occurence- Hypertension-related AE6 participants
Teriflunomide 14 mg + IFN-βOverview of AE With Potential Risk of Occurence- Pulmonary disorder AE0 participants
Teriflunomide 14 mg + IFN-βOverview of AE With Potential Risk of Occurence- Hepatic disorder AE13 participants
Teriflunomide 14 mg + IFN-βOverview of AE With Potential Risk of OccurenceAny AE with potential risk of occurence30 participants
Teriflunomide 14 mg + IFN-βOverview of AE With Potential Risk of Occurence- Immune effects related AE20 participants
Teriflunomide 14 mg + IFN-βOverview of AE With Potential Risk of Occurence- Psychiatric disorder AE2 participants
Teriflunomide 14 mg + IFN-βOverview of AE With Potential Risk of Occurence- Pancreatic disorder AE11 participants
Teriflunomide 14 mg + IFN-βOverview of AE With Potential Risk of Occurence- Hypersensitivity AE4 participants
Teriflunomide 14 mg + IFN-βOverview of AE With Potential Risk of Occurence- Peripheral neuropathy AE4 participants
Teriflunomide 14 mg + IFN-βOverview of AE With Potential Risk of Occurence- Malignancy AE0 participants
Placebo + GAOverview of AE With Potential Risk of Occurence- Psychiatric disorder AE3 participants
Placebo + GAOverview of AE With Potential Risk of OccurenceAny AE with potential risk of occurence34 participants
Placebo + GAOverview of AE With Potential Risk of Occurence- Hepatic disorder AE5 participants
Placebo + GAOverview of AE With Potential Risk of Occurence- Immune effects related AE27 participants
Placebo + GAOverview of AE With Potential Risk of Occurence- Pancreatic disorder AE6 participants
Placebo + GAOverview of AE With Potential Risk of Occurence- Malignancy AE0 participants
Placebo + GAOverview of AE With Potential Risk of Occurence- Hair loss / hair thinning AE1 participants
Placebo + GAOverview of AE With Potential Risk of Occurence- Pulmonary disorder AE0 participants
Placebo + GAOverview of AE With Potential Risk of Occurence- Hypertension-related AE0 participants
Placebo + GAOverview of AE With Potential Risk of Occurence- Peripheral neuropathy AE4 participants
Placebo + GAOverview of AE With Potential Risk of Occurence- Hypersensitivity AE4 participants
Teriflunomide 7 mg + GAOverview of AE With Potential Risk of Occurence- Hypersensitivity AE6 participants
Teriflunomide 7 mg + GAOverview of AE With Potential Risk of Occurence- Immune effects related AE22 participants
Teriflunomide 7 mg + GAOverview of AE With Potential Risk of Occurence- Hypertension-related AE2 participants
Teriflunomide 7 mg + GAOverview of AE With Potential Risk of Occurence- Psychiatric disorder AE3 participants
Teriflunomide 7 mg + GAOverview of AE With Potential Risk of Occurence- Peripheral neuropathy AE5 participants
Teriflunomide 7 mg + GAOverview of AE With Potential Risk of Occurence- Hepatic disorder AE4 participants
Teriflunomide 7 mg + GAOverview of AE With Potential Risk of Occurence- Malignancy AE0 participants
Teriflunomide 7 mg + GAOverview of AE With Potential Risk of OccurenceAny AE with potential risk of occurence33 participants
Teriflunomide 7 mg + GAOverview of AE With Potential Risk of Occurence- Pancreatic disorder AE6 participants
Teriflunomide 7 mg + GAOverview of AE With Potential Risk of Occurence- Pulmonary disorder AE1 participants
Teriflunomide 7 mg + GAOverview of AE With Potential Risk of Occurence- Hair loss / hair thinning AE5 participants
Teriflunomide 14 mg + GAOverview of AE With Potential Risk of Occurence- Hair loss / hair thinning AE7 participants
Teriflunomide 14 mg + GAOverview of AE With Potential Risk of Occurence- Hypertension-related AE2 participants
Teriflunomide 14 mg + GAOverview of AE With Potential Risk of Occurence- Malignancy AE0 participants
Teriflunomide 14 mg + GAOverview of AE With Potential Risk of Occurence- Pancreatic disorder AE11 participants
Teriflunomide 14 mg + GAOverview of AE With Potential Risk of Occurence- Hypersensitivity AE10 participants
Teriflunomide 14 mg + GAOverview of AE With Potential Risk of Occurence- Peripheral neuropathy AE10 participants
Teriflunomide 14 mg + GAOverview of AE With Potential Risk of Occurence- Immune effects related AE21 participants
Teriflunomide 14 mg + GAOverview of AE With Potential Risk of Occurence- Hepatic disorder AE5 participants
Teriflunomide 14 mg + GAOverview of AE With Potential Risk of Occurence- Psychiatric disorder AE1 participants
Teriflunomide 14 mg + GAOverview of AE With Potential Risk of OccurenceAny AE with potential risk of occurence32 participants
Teriflunomide 14 mg + GAOverview of AE With Potential Risk of Occurence- Pulmonary disorder AE0 participants
Secondary

Annualized Relapse Rate [ARR]: Poisson Regression Estimates

ARR is obtained from the total number of confirmed relapses that occured during the treatment period divided by the sum of the treatment durations. Each episode of relapse - appearance, or worsening of a clinical symptom that was stable for at least 30 days, that persisted for a minimum of 24 hours in the absence of fever - was to be confirmed by an increase in Expanded Disability Status Scale \[EDSS\] score or Functional System scores. To account for the different treatment durations among participants, two Poisson regression models with robust error variance were used (total number of confirmed relapses as response variable, log-transformed treatment duration as offset variable and: * Model 1 (IFN-β groups): treatment group, region of enrollment and IFN-β dose level as covariates * Model 2 (GA groups): treatment group and region of enrollment as covariates)

Time frame: 48 weeks

Population: All randomized and treated participants; Participants were included in the treatment group according to the drug actually received.

ArmMeasureValue (NUMBER)
Placebo + IFN-βAnnualized Relapse Rate [ARR]: Poisson Regression Estimates0.343 relapses per year
Teriflunomide 7 mg + IFN-βAnnualized Relapse Rate [ARR]: Poisson Regression Estimates0.231 relapses per year
Teriflunomide 14 mg + IFN-βAnnualized Relapse Rate [ARR]: Poisson Regression Estimates0.144 relapses per year
Placebo + GAAnnualized Relapse Rate [ARR]: Poisson Regression Estimates0.420 relapses per year
Teriflunomide 7 mg + GAAnnualized Relapse Rate [ARR]: Poisson Regression Estimates0.262 relapses per year
Teriflunomide 14 mg + GAAnnualized Relapse Rate [ARR]: Poisson Regression Estimates0.497 relapses per year
Secondary

Cerebral Magnetic Resonance Imaging [MRI] Assessment: Change From Baseline in Total Lesion Volume (Burden of Disease)

Total lesion volume is the sum of the total volume of all T2-lesions and the total volume all T1-hypointense post-gadolinium lesions measured through T2/proton density scan analysis and gadolinium-enhanced T1 scan analysis. Least-square means were estimated using two Mixed-effect models with repeated measures \[MMRM\] on cubic root transformed volume data: * Model 1 (IFN-β groups): treatment group, region of enrollment, IFN-β dose level, visit, treatment-by-visit interaction, baseline value (cubic root transformed), and baseline-by-visit interaction as factors; * Model 2 (GA groups): treatment group, region of enrollment, visit, treatment-by-visit interaction, baseline value (cubic root transformed), and baseline-by-visit interaction as factors.

Time frame: baseline (before randomization in PDY6045 or PDY6046) and 48 weeks

Population: All randomized and treated participants; Participants were included in the treatment group according to the drug actually received.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Placebo + IFN-βCerebral Magnetic Resonance Imaging [MRI] Assessment: Change From Baseline in Total Lesion Volume (Burden of Disease)-0.017 mililiters (mL)Standard Error 0.028
Teriflunomide 7 mg + IFN-βCerebral Magnetic Resonance Imaging [MRI] Assessment: Change From Baseline in Total Lesion Volume (Burden of Disease)-0.011 mililiters (mL)Standard Error 0.03
Teriflunomide 14 mg + IFN-βCerebral Magnetic Resonance Imaging [MRI] Assessment: Change From Baseline in Total Lesion Volume (Burden of Disease)-0.012 mililiters (mL)Standard Error 0.029
Placebo + GACerebral Magnetic Resonance Imaging [MRI] Assessment: Change From Baseline in Total Lesion Volume (Burden of Disease)0.016 mililiters (mL)Standard Error 0.036
Teriflunomide 7 mg + GACerebral Magnetic Resonance Imaging [MRI] Assessment: Change From Baseline in Total Lesion Volume (Burden of Disease)-0.010 mililiters (mL)Standard Error 0.037
Teriflunomide 14 mg + GACerebral Magnetic Resonance Imaging [MRI] Assessment: Change From Baseline in Total Lesion Volume (Burden of Disease)-0.063 mililiters (mL)Standard Error 0.039
Secondary

Cerebral MRI Assessment: Number of Gd-enhancing T1-lesions Per Scan (Poisson Regression Estimates)

Number of Gd-enhancing T1-lesions per scan is obtained from the total number of Gd-enhancing T1-lesions observed during the study divided by the total number of scans performed during the study. To account for the different number of scans among participants, two Poisson regression models with robust error variance were used (total number of Gd-enhancing T1-lesions as response variable, log-transformed number of scans as offset variable and: * Model 1 (IFN-β groups): Treatment group, region of enrollment, IFN-β dose level and baseline number of Gd-enhancing T1-lesions as covariates * Model 2 (GA groups): Treatment group, region of enrollment and baseline number of Gd-enhancing T1-lesions as covariates)

Time frame: 48 weeks

Population: All randomized and treated participants; Participants were included in the treatment group according to the drug actually received.

ArmMeasureValue (NUMBER)
Placebo + IFN-βCerebral MRI Assessment: Number of Gd-enhancing T1-lesions Per Scan (Poisson Regression Estimates)0.521 lesions per scan
Teriflunomide 7 mg + IFN-βCerebral MRI Assessment: Number of Gd-enhancing T1-lesions Per Scan (Poisson Regression Estimates)0.080 lesions per scan
Teriflunomide 14 mg + IFN-βCerebral MRI Assessment: Number of Gd-enhancing T1-lesions Per Scan (Poisson Regression Estimates)0.090 lesions per scan
Placebo + GACerebral MRI Assessment: Number of Gd-enhancing T1-lesions Per Scan (Poisson Regression Estimates)0.333 lesions per scan
Teriflunomide 7 mg + GACerebral MRI Assessment: Number of Gd-enhancing T1-lesions Per Scan (Poisson Regression Estimates)0.120 lesions per scan
Teriflunomide 14 mg + GACerebral MRI Assessment: Number of Gd-enhancing T1-lesions Per Scan (Poisson Regression Estimates)0.178 lesions per scan
Secondary

Cerebral MRI Assessment: Total Volume of Gd-enhancing T1-lesions Per Scan

Total volume of Gd-enhancing T1-lesions per scan is obtained from the sum of the volumes of Gd-enhancing T1-lesions observed during the study divided by the total number of scans performed during the study.

Time frame: 48 weeks

Population: All randomized and treated participants; Participants were included in the treatment group according to the drug actually received.

ArmMeasureValue (NUMBER)
Placebo + IFN-βCerebral MRI Assessment: Total Volume of Gd-enhancing T1-lesions Per Scan0.068 mililiters per scan
Teriflunomide 7 mg + IFN-βCerebral MRI Assessment: Total Volume of Gd-enhancing T1-lesions Per Scan0.019 mililiters per scan
Teriflunomide 14 mg + IFN-βCerebral MRI Assessment: Total Volume of Gd-enhancing T1-lesions Per Scan0.020 mililiters per scan
Placebo + GACerebral MRI Assessment: Total Volume of Gd-enhancing T1-lesions Per Scan0.052 mililiters per scan
Teriflunomide 7 mg + GACerebral MRI Assessment: Total Volume of Gd-enhancing T1-lesions Per Scan0.031 mililiters per scan
Teriflunomide 14 mg + GACerebral MRI Assessment: Total Volume of Gd-enhancing T1-lesions Per Scan0.014 mililiters per scan
Secondary

Overview of 12-week Sustained Disability Progression

12-week sustained disability progression was defined as an increase from baseline of at least 1-point in EDSS score (at least 0.5-point for participants with baseline EDSS score \>5.5) that persisted for at least 12 weeks. If no disability progression was observed on or before last EDSS evaluation before study drug discontinuation, then the participant was considered as free of disability progression.

Time frame: 48 weeks

Population: All randomized and treated participants; Participants were included in the treatment group according to the drug actually received.

ArmMeasureGroupValue (NUMBER)
Placebo + IFN-βOverview of 12-week Sustained Disability ProgressionDisability progression0 participants
Placebo + IFN-βOverview of 12-week Sustained Disability ProgressionFree of disability progression40 participants
Teriflunomide 7 mg + IFN-βOverview of 12-week Sustained Disability ProgressionDisability progression3 participants
Teriflunomide 7 mg + IFN-βOverview of 12-week Sustained Disability ProgressionFree of disability progression33 participants
Teriflunomide 14 mg + IFN-βOverview of 12-week Sustained Disability ProgressionDisability progression2 participants
Teriflunomide 14 mg + IFN-βOverview of 12-week Sustained Disability ProgressionFree of disability progression36 participants
Placebo + GAOverview of 12-week Sustained Disability ProgressionDisability progression4 participants
Placebo + GAOverview of 12-week Sustained Disability ProgressionFree of disability progression37 participants
Teriflunomide 7 mg + GAOverview of 12-week Sustained Disability ProgressionDisability progression1 participants
Teriflunomide 7 mg + GAOverview of 12-week Sustained Disability ProgressionFree of disability progression41 participants
Teriflunomide 14 mg + GAOverview of 12-week Sustained Disability ProgressionDisability progression4 participants
Teriflunomide 14 mg + GAOverview of 12-week Sustained Disability ProgressionFree of disability progression36 participants
Secondary

Time to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at Timepoints

Probability of disability progression at 24 and 48 weeks was estimated using Kaplan-Meier method on the time to disability progression defined as the time from randomization to first EDSS increase. Participants free of disability progression were censored at the date of the last on-treatment EDSS evaluation. Kaplan-Meier method consists in computing probabilities of non occurrence of event at any observed time of event and multiplying successive probabilities for time ≤t by any earlier computed probabilities to estimate the probability of being event-free for the amount of time t. Probability of event at time t is 1 minus the probability of being event-free for the amount of time t.

Time frame: 48 weeks

Population: All randomized and treated participants; Participants were included in the treatment group according to the drug actually received.

ArmMeasureGroupValue (NUMBER)
Placebo + IFN-βTime to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at TimepointsProbability of disability progression at 24 weeks0.0 percent probability
Placebo + IFN-βTime to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at TimepointsProbability of disability progression at 48 weeks0.0 percent probability
Teriflunomide 7 mg + IFN-βTime to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at TimepointsProbability of disability progression at 24 weeks3.0 percent probability
Teriflunomide 7 mg + IFN-βTime to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at TimepointsProbability of disability progression at 48 weeks11.1 percent probability
Teriflunomide 14 mg + IFN-βTime to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at TimepointsProbability of disability progression at 24 weeks2.7 percent probability
Teriflunomide 14 mg + IFN-βTime to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at TimepointsProbability of disability progression at 48 weeks6.4 percent probability
Placebo + GATime to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at TimepointsProbability of disability progression at 24 weeks2.5 percent probability
Placebo + GATime to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at TimepointsProbability of disability progression at 48 weeks10.6 percent probability
Teriflunomide 7 mg + GATime to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at TimepointsProbability of disability progression at 24 weeks0.0 percent probability
Teriflunomide 7 mg + GATime to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at TimepointsProbability of disability progression at 48 weeks3.3 percent probability
Teriflunomide 14 mg + GATime to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at TimepointsProbability of disability progression at 24 weeks5.6 percent probability
Teriflunomide 14 mg + GATime to 12-week Sustained Disability Progression: Kaplan-Meier Estimates of the Rate of Disability Progression at TimepointsProbability of disability progression at 48 weeks12.8 percent probability

Source: ClinicalTrials.gov · Data processed: Mar 4, 2026