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Trial · NCT01797965

Long-Term Extension Study in Participants With Multiple Sclerosis Who Have Completed Study 205MS301 (NCT01064401) to Evaluate the Safety and Efficacy of BIIB019

NCT01797965, Phase 3, Terminated, Biogen; results first posted 2019-12-04

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ConductScience Library. Long-Term Extension Study in Participants With Multiple Sclerosis Who Have Completed Study 205MS301 (NCT01064401) to Evaluate the Safety and Efficacy of BIIB019. Trials, record NCT01797965. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01797965

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Long-Term Extension Study in Participants With Multiple Sclerosis Who Have Completed Study 205MS301 (NCT01064401) to Evaluate the Safety and Efficacy of BIIB019
NCT number
NCT01797965
Status
Terminated
Phases
Phase 3
Enrollment
1,501 participants, actual
Lead sponsor
Biogen
Conditions
Relapsing-Remitting Multiple Sclerosis, Multiple Sclerosis
Interventions
BIIB019 (Daclizumab)
First posted
2013-02-25
Last updated
2019-12-04
Other registries' IDs
eudract:2012-003176-39
Results first posted
2019-12-04

Source ClinicalTrials.gov

Registered outcomes43

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryNumber of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)First dose of study drug in Study 303 to within 180 days of last dose (up to approximately 5.5 years)
An AE is defined as any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product; it does not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product. A SAE is any untoward medical occurrence or effect that at any dose results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability / incapacity, is a congenital anomaly / birth defect or is medically important due to other reasons than the above mentioned criteria.
SecondaryAnnualized Relapse Rate (ARR) in the 205MS303 Treatment PeriodUp to 4.6 years in the 303 study
Relapses are defined as new or recurrent neurological symptoms not associated with fever or infection, lasting at least 24 hours, and accompanied by new objective neurological findings upon examination by the Study Neurologist. The unadjusted ARR was calculated by tabulating the total number of relapses experienced in the group divided by the number of days up to the end of study, and the ratio then multiplied by 365.25. Relapses that occurred after participants received alternative multiple sclerosis (MS) medications were excluded from the analyses. ARR was adjusted for relapse rate, IFN beta use, Expanded Disability Status Scale (EDSS) (\<=2.5 vs \>2.5) and age (\<=35 vs \>35) prior to start of study treatment in 205MS301, calculated using the negative binomial model.
SecondaryARR in the 205MS301-303 Combined Study Period and 205MS301 Treatment PeriodUp to 5.6 years combining 303 with the initial Study 301; Up to 1 year in the 301 study
Relapses are defined as new or recurrent neurological symptoms not associated with fever or infection, lasting at least 24 hours, and accompanied by new objective neurological findings upon examination by the Study Neurologist. The unadjusted ARR was calculated by tabulating the total number of relapses experienced in the group divided by the number of days up to the end of study, and the ratio then multiplied by 365.25. Relapses that occurred after participants received alternative MS medications were excluded from the analyses. ARR was adjusted for relapse rate, IFN beta use, EDSS (\<=2.5 vs \>2.5) and age (\<=35 vs \>35) prior to start of study treatment in 301, calculated using the negative binomial model.
SecondaryNumber of Participants With Relapse in the 205MS303 Treatment PeriodUp to 4.6 years in the 303 study
Relapses are defined as new or recurrent neurological symptoms not associated with fever or infection, lasting at least 24 hours, and accompanied by new objective neurological findings upon examination by the Study Neurologist.
SecondaryNumber of Participants With Relapse in the 205MS301-303 Combined Study PeriodUp to 5.6 years combining 303 with the initial Study 301
Relapses are defined as new or recurrent neurological symptoms not associated with fever or infection, lasting at least 24 hours, and accompanied by new objective neurological findings upon examination by the Study Neurologist.
SecondaryNumber of Participants With Sustained Disability Progression in the 205MS303 Treatment PeriodUp to 4.6 years in Study 303
Sustained disability progression is defined as at least a 1.0-point increase on the Expanded Disability Status Scale (EDSS) from 303 baseline EDSS ≥1.0 that is sustained for 24 weeks, or at least a 1.5-point increase on the EDSS from 303 baseline EDSS of 0, that is sustained for 24 weeks. The EDSS measures the disability status of people with multiple sclerosis on a scale that ranges from 0 to 10. The range of main categories include (0) =normal neurologic exam; to (5) = ambulatory without aid or rest for 200 meters; disability severe enough to impair full daily activities; to (10) = death due to MS. Higher scores indicate more disability.
SecondaryNumber of Participants With Sustained Disability Progression in the 205MS301-303 Combined Study PeriodUp to 5.6 years combining 303 with the initial Study 301
Sustained disability progression is defined as at least a 1.0-point increase on the Expanded Disability Status Scale (EDSS) from 303 baseline EDSS ≥1.0 that is sustained for 24 weeks, or at least a 1.5-point increase on the EDSS from 303 baseline EDSS of 0, that is sustained for 24 weeks. The EDSS measures the disability status of people with multiple sclerosis on a scale that ranges from 0 to 10. The range of main categories include (0) =normal neurologic exam; to (5) = ambulatory without aid or rest for 200 meters; disability severe enough to impair full daily activities; to (10) = death due to MS. Higher scores indicate more disability.
SecondaryNumber of Participants With New or Newly Enlarging T2 Hyperintense Lesions in the 205MS303 Treatment PeriodBaseline 303, Weeks 48, 96, 144, 192, 240 in Study 303
T2 Hyperintense Lesions were assessed by magnetic resonance imaging (MRI) and were analyzed by a central MRI reader. The number of participants with New or Newly Enlarging T2 Hyperintense Lesions relative to the 303 Baseline in the 303 Treatment Period is reported.
SecondaryNumber of Participants With New or Newly Enlarging T2 Hyperintense Lesions in the 205MS301 Treatment PeriodBaseline 301, Weeks 24, 96, 144 in Study 301
T2 Hyperintense Lesions were assessed by MRI and were analyzed by a central MRI reader. The number of participants with New or Newly Enlarging T2 Hyperintense Lesions relative to the 301 Baseline in the 301 Treatment Period is reported.
SecondaryNumber of Participants With Gadolinium-enhancing (Gd+) Lesions in the 205MS303 Treatment Period301-303: Baseline 303, Weeks 48, 96, 144, 192, 240; 203-303 and 302-303: Week 96Gd+ lesions were evaluated by MRI and were analyzed by a central MRI reader.

Outcomes43

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYNumber of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)First dose of study drug in Study 303 to within 180 days of last dose (up to approximately 5.5 years)Safety Population consisted of all participants who completed Study 301, 203 or 302 and had at least 1 dose of DAC HYP during Study 303.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYAnnualized Relapse Rate (ARR) in the 205MS303 Treatment PeriodUp to 4.6 years in the 303 studyIntent-to-treat (ITT) Population consisted of all participants who completed Study 301, 203 or 302 and received at least 1 dose of DAC HYP during Study 303.relapses per yearMEAN
SECONDARYARR in the 205MS301-303 Combined Study Period and 205MS301 Treatment PeriodUp to 5.6 years combining 303 with the initial Study 301; Up to 1 year in the 301 study301-303 ITT Population consisted of all participants who completed Study 301 and received at least 1 dose of DAC HYP during Study 303.relapses per yearMEAN
SECONDARYNumber of Participants With Relapse in the 205MS303 Treatment PeriodUp to 4.6 years in the 303 studyITT Population consisted of all participants who completed Study 301, 203 or 302 and had at least 1 dose of DAC HYP during Study 303.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Relapse in the 205MS301-303 Combined Study PeriodUp to 5.6 years combining 303 with the initial Study 301301-303 ITT Population consisted of all participants who completed Study 301 and had at least 1 dose of DAC HYP during Study 303.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Sustained Disability Progression in the 205MS303 Treatment PeriodUp to 4.6 years in Study 303ITT Population consisted of all participants who completed Study 301, 203 or 302 and had at least 1 dose of DAC HYP during Study 303.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Sustained Disability Progression in the 205MS301-303 Combined Study PeriodUp to 5.6 years combining 303 with the initial Study 301301-303 ITT Population consisted of all participants who completed Study 301 and had at least 1 dose of DAC HYP during Study 303.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With New or Newly Enlarging T2 Hyperintense Lesions in the 205MS303 Treatment PeriodBaseline 303, Weeks 48, 96, 144, 192, 240 in Study 303
301-303 ITT population consisted of all participants who completed Study 301 and received at least 1 dose of DAC HYP during Study 303. No data was collected for participants from the 203 and 302 studies. Number analyzed is the number of participants with data available at the given timepoint.
ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With New or Newly Enlarging T2 Hyperintense Lesions in the 205MS301 Treatment PeriodBaseline 301, Weeks 24, 96, 144 in Study 301
301-303 ITT population consisted of all participants who completed Study 301 and received at least 1 dose of DAC HYP during Study 303. Number analyzed is the number of participants with data available at the given timepoint.
ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants With Gadolinium-enhancing (Gd+) Lesions in the 205MS303 Treatment Period301-303: Baseline 303, Weeks 48, 96, 144, 192, 240; 203-303 and 302-303: Week 96
ITT Population consisted of all participants who completed Study 301, 203 or 302 and received at least one dose of DAY HYP in Study 303. Number analyzed is the number of participants with data available at the given timepoint.
ParticipantsCOUNT_OF_PARTICIPANTS

Results by group927

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)IFN β-1a 30 µg (301)/DAC HYP 150 mg (303)Participants with AEs541Participants
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)DAC HYP 150 mg (301) /DAC HYP 150 mg (303)Participants with AEs560Participants
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)DAC HYP 150 mg (203) /DAC HYP 150 mg (303)Participants with AEs172Participants
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)DAC HYP 150 mg (302) /DAC HYP 150 mg (303)Participants with AEs53Participants
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)IFN β-1a 30 µg (301)/DAC HYP 150 mg (303)Participants with SAEs157Participants
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)DAC HYP 150 mg (301) /DAC HYP 150 mg (303)Participants with SAEs190Participants
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)DAC HYP 150 mg (203) /DAC HYP 150 mg (303)Participants with SAEs38Participants
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)DAC HYP 150 mg (302) /DAC HYP 150 mg (303)Participants with SAEs15Participants
Annualized Relapse Rate (ARR) in the 205MS303 Treatment PeriodIFN β-1a 30 µg (301)/DAC HYP 150 mg (303)0.15895% Confidence Interval 0.134 to 0.188relapses per year
Annualized Relapse Rate (ARR) in the 205MS303 Treatment PeriodDAC HYP 150 mg (301) /DAC HYP 150 mg (303)0.16395% Confidence Interval 0.138 to 0.193relapses per year

Participant flow12

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDIFN β-1a 30 µg (301)/DAC HYP 150 mg (303)597
Overall StudySTARTEDDAC HYP 150 mg (301) /DAC HYP 150 mg (303)607
Overall StudySTARTEDDAC HYP 150 mg (302) /DAC HYP 150 mg (303)70
Overall StudySTARTEDDAC HYP 150 mg (203) /DAC HYP 150 mg (303)227
Overall StudyCOMPLETEDIFN β-1a 30 µg (301)/DAC HYP 150 mg (303)48
Overall StudyCOMPLETEDDAC HYP 150 mg (301) /DAC HYP 150 mg (303)38
Overall StudyCOMPLETEDDAC HYP 150 mg (302) /DAC HYP 150 mg (303)62
Overall StudyCOMPLETEDDAC HYP 150 mg (203) /DAC HYP 150 mg (303)154
Overall StudyNOT COMPLETEDIFN β-1a 30 µg (301)/DAC HYP 150 mg (303)549
Overall StudyNOT COMPLETEDDAC HYP 150 mg (301) /DAC HYP 150 mg (303)569

Adverse events1,304

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherLymphadenopathyBlood and lymphatic system disordersIFN β-1a 30 µg (301)/DAC HYP 150 mg (303)47597
otherLymphadenopathyBlood and lymphatic system disordersDAC HYP 150 mg (301) /DAC HYP 150 mg (303)71606
otherLymphadenopathyBlood and lymphatic system disordersDAC HYP 150 mg (302) /DAC HYP 150 mg (303)370
otherLymphadenopathyBlood and lymphatic system disordersDAC HYP 150 mg (203) /DAC HYP 150 mg (303)7227
otherDiarrhoeaGastrointestinal disordersIFN β-1a 30 µg (301)/DAC HYP 150 mg (303)42597
otherDiarrhoeaGastrointestinal disordersDAC HYP 150 mg (301) /DAC HYP 150 mg (303)35606
otherDiarrhoeaGastrointestinal disordersDAC HYP 150 mg (302) /DAC HYP 150 mg (303)270
otherDiarrhoeaGastrointestinal disordersDAC HYP 150 mg (203) /DAC HYP 150 mg (303)10227
otherToothacheGastrointestinal disordersIFN β-1a 30 µg (301)/DAC HYP 150 mg (303)17597
otherToothacheGastrointestinal disordersDAC HYP 150 mg (301) /DAC HYP 150 mg (303)14606

Adverse event totals12

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityIFN β-1a 30 µg (301)/DAC HYP 150 mg (303)2597
Total, all-cause mortalityDAC HYP 150 mg (301) /DAC HYP 150 mg (303)4606
Total, all-cause mortalityDAC HYP 150 mg (302) /DAC HYP 150 mg (303)070
Total, all-cause mortalityDAC HYP 150 mg (203) /DAC HYP 150 mg (303)0227
Total, other adverse eventsIFN β-1a 30 µg (301)/DAC HYP 150 mg (303)463597
Total, other adverse eventsDAC HYP 150 mg (301) /DAC HYP 150 mg (303)476606
Total, other adverse eventsDAC HYP 150 mg (302) /DAC HYP 150 mg (303)4270
Total, other adverse eventsDAC HYP 150 mg (203) /DAC HYP 150 mg (303)116227
Total, serious adverse eventsIFN β-1a 30 µg (301)/DAC HYP 150 mg (303)157597
Total, serious adverse eventsDAC HYP 150 mg (301) /DAC HYP 150 mg (303)190606

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
27411694DERIVED

Source PubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons3

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
IFN β-1a 30 µg (301)/DAC HYP 150 mg (303) vs DAC HYP 150 mg (301) /DAC HYP 150 mg (303): Number of Participants Who Are Free From Disease Activity in the 205MS303 Treatment PeriodTrial comparisons
IFN β-1a 30 µg (301)/DAC HYP 150 mg (303) vs DAC HYP 150 mg (301) /DAC HYP 150 mg (303): Number of Participants With Relapse in the 205MS301-303 Combined Study PeriodTrial comparisons
IFN β-1a 30 µg (301)/DAC HYP 150 mg (303) vs DAC HYP 150 mg (301) /DAC HYP 150 mg (303): Number of Participants With Sustained Disability Progression in the 205MS301-303 Combined Study PeriodTrial comparisons

Tests2

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

TestNamed asSource
Paced Visual Serial Addition TestSecondary outcomeConductCognition
Symbol CodingSecondary outcomeConductCognition

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

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GET https://conductscience.org/api/trials/v1/NCT01797965/registered?page=2