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AzTrials

Relapsing-Remitting Multiple SclerosisPhase 3ENDORSENCT00835770

BG00012 Monotherapy Safety and Efficacy Extension Study in Multiple Sclerosis (MS)

A Phase 3 study testing dimethyl fumarate in people with Relapsing-Remitting Multiple Sclerosis, run by Biogen at 246 sites in 34 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The primary objective of this study is to evaluate the long-term safety profile of BG00012 (dimethyl fumarate). Secondary objectives of this study are to evaluate the long-term efficacy of BG00012 using clinical endpoints and disability progression, to evaluate further the long-term effects of BG00012 on multiple… Read more about this study

Who is it for?
Ages 19 to 58 years
Conditions the study is for
Relapsing-Remitting Multiple Sclerosis
What is being tested?
dimethyl fumarate
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
1,736 participants
Where
246 sitesin 34 countries
Study dates
3 Feb 2009to 8 Nov 2019
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 19 to 58 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • -Subjects who participated in and completed as per protocol previous BG00012 clinical studies 109MS301 (NCT00420212) or 109MS302 (NCT00451451).

Who cannot join

  • Any significant change in medical history from 109MS301 or 109MS302 that would have excluded subject's participation from their previous study.
  • Subjects from 109MS301 or 109MS302 who discontinued oral study treatment due to an AE or due to reasons other than protocol-defined relapse/disability progression.
  • Subjects from 109MS301 or 109MS302 who discontinued study treatment due to disability progression or relapses and did not follow the modified visit schedule up to Week 96.
  • NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.

Trial locations and contacts

246 sites in 34 countries.

246 sites in 34 countries

United States50 sites
  • Research Site

    Albany, New York, 12206

  • Research Site

    Amherst, New York, 14226

  • Research Site

    Atlanta, Georgia, 30309

  • Research Site

    Atlanta, Georgia, 30327

  • Research Site

    Baltimore, Maryland, 21201

  • Research Site

    Bellevue, Ohio, 44811

  • Research Site

    Birmingham, Alabama, 35294

  • Research Site

    Boston, Massachusetts, 02135

  • Research Site

    Boston, Massachusetts, 02215

  • Research Site

    Boulder, Colorado, 80304

  • Research Site

    Buffalo, New York, 14203

  • Research Site

    Charlotte, North Carolina, 28204

  • Research Site

    Chesterfield, Missouri, 63017

  • Research Site

    Cleveland, Ohio, 44195

  • Research Site

    Columbus, Ohio, 43221

  • Research Site

    Cordova, Tennessee, 38018

  • Research Site

    Dayton, Ohio, 45417

  • Research Site

    Evanston, Illinois, 60201

  • Research Site

    Farmington Hills, Michigan, 48334

  • Research Site

    Fort Collins, Colorado, 80528

  • Research Site

    Fort Wayne, Indiana, 46845

  • Research Site

    Houston, Texas, 77030

  • Research Site

    Huntsville, Alabama, 35801

  • Research Site

    Issaquah, Washington, 98029

  • Research Site

    Kansas City, Kansas, 66160

  • Research Site

    Knoxville, Tennessee, 37922

  • Research Site

    Loma Linda, California, 92354

  • Research Site

    Madison, Wisconsin, 53792

  • Research Site

    Maitland, Florida, 32751

  • Research Site

    Medford, Oregon, 97504

  • research Site

    Mesa, Arizona, 85206

  • Research Site

    Miami, Florida, 33136

  • Research Site

    Minneapolis, Minnesota, 55414

  • Research Site

    Naples, Florida, 34102

  • Research Site

    Newport News, Virginia, 23601

  • Research Site

    North Haven, Connecticut, 06473

  • Research Site

    Patchogue, New York, 11772

  • Research Site

    Philadelphia, Pennsylvania, 19104

  • Research Site

    Philadelphia, Pennsylvania, 19140

  • Research Site

    Phoenix, Arizona, 85013

  • Research Site

    Pittsburgh, Pennsylvania, 15213

  • Research Site

    Portland, Oregon, 97225

  • Research Site

    Raleigh, North Carolina, 27607

  • Research Site

    Rumford, Rhode Island, 02916

  • Research Site

    Sarasota, Florida, 34239

  • Research Site

    Shreveport, Louisiana, 71103

  • Research Site

    St Louis, Missouri, 63104

  • Research Site

    Tampa, Florida, 33612

  • Research Site

    Washington D.C., District of Columbia, 20007

  • Research Site

    Wichita, Kansas, 67206

Other trials in United States

Germany31 sites
  • Research Site

    Bayreuth, 95445

  • Research Site

    Berg, Bavaria, 82335

  • Research Site

    Berlin, 10437

  • Research Site

    Berlin, 10625

  • Research Site

    Berlin, 10961

  • Research Site

    Berlin, 12099

  • Research Site

    Berlin, 12163

  • Research Site

    Berlin, 13347

  • Research Site

    Bochum, 44791

  • Research Site

    Cologne, 50935

  • Research Site

    Dresden, 01307

  • Research Site

    Düsseldorf, 40212

  • Research Site

    Erbach im Odenwald, 64711

  • Research Site

    Erlangen, 91054

  • Research Site

    Essen, 45257

  • Research Site

    Halle, 06120

  • Research Site

    Hamburg, 20099

  • Research Site

    Hamburg, 20246

  • Research Site

    Hamburg, 22083

  • Research Site

    Hanover, 30171

  • Research Site

    Hanover, 30625

  • Research Site

    Leipzig, 04103

  • Research Site

    Magdeburg, 39120

  • Research Site

    Marburg, 35043

  • Research Site

    Minden, 32429

  • Research Site

    Munich (München), 81675

  • Research Site

    Münster, 48149

  • Research Site

    Osnabrück, 49076

  • Research Site

    Regensburg, 93053

  • Research Site

    Steinfurt, Ibbenbueren, 49477

  • Research Site

    Westerstede, 26655

Other trials in Germany

Poland20 sites
  • Research Site

    Bialystok, 15-276

  • Research Site

    Bialystok, 15-402

  • Research Site

    Gdansk, 80-299

  • Research Site

    Gdansk, 80-803

  • Research Site

    Gdansk, 80-952

  • Research Site

    Katowice, 40-594

  • Research Site

    Katowice, 40-752

  • Research Site

    Krakow, 31-505

  • Research Site

    Lódz, 90-153

  • Research Site

    Lublin, 20-954

  • Research Site

    Olsztyn, 10-561

  • Research Site

    Plewiska, 62-064

  • Research Site

    Poznan, 60-355

  • Research Site

    Poznan, 60-539

  • Research Site

    Szczecin, 70-215

  • Research Site

    Szczecin, 71-252

  • Research Site

    Warsaw, 02-097

  • Research Site

    Warsaw, 02-507

  • Research Site

    Warsaw, 02-957

  • Research Site

    Wroclaw, 50-556

Other trials in Poland

India15 sites
  • Research Site

    Ahmedabad, 380006

  • Research Site

    Bangalore, 560054

  • Research Site

    Chandigarh, 160012

  • Research Site

    Hyderabad, 500082

  • Research Site

    Kolkata, 700054

  • Research Site

    Kolkata, 700068

  • Research Site

    Ludhiana, 141001

  • Research Site

    Ludhiana, 141008

  • Research Site

    Mangalore, 575002

  • Research Site

    Mumbai, 400054

  • Research Site

    New Delhi, 110017

  • Research Site

    New Delhi, 110029

  • Research Site

    New Delhi, 110060

  • Research Site

    Pune, 411001

  • Research Site

    Pune, 411004

Other trials in India

France13 sites
  • Research Site

    Amiens, 80054

  • Research Site

    Caen, 14033

  • Research Site

    Clermont-Ferrand, 63003

  • Research Site

    Dijon, 21033

  • Research Site

    Lille, 59037

  • Research Site

    Lyon, 69394

  • Research Site

    Marseille, 13385

  • Research Site

    Montpellier, 34090

  • Research Site

    Nancy, 54035

  • Research Site

    Nice, 06002

  • Research Site

    Paris, 75019

  • Research Site

    Rennes, 35033

  • Research Site

    Strasbourg, 67000

Other trials in France

Belgium10 sites
  • Research Site

    Antwerp, 2020

  • Research Site

    Bruges, 8000

  • Research Site

    Brussels, 1200

  • Research Site

    Charleroi, 6000

  • Research Site

    Damme, 8340

  • Research Site

    Diepenbeek, 3590

  • Research Site

    Hechtel-Eksel, 3940

  • Research Site

    Leuven, 3000

  • Research Site

    Lodelinsart, 6042

  • Research Site

    Sint-Truiden, 3800

Other trials in Belgium

Ukraine10 sites
  • Research Site

    Ivano-Frankivsk, 76018

  • Research Site

    Kharkiv, 61068

  • Research Site

    Kharkiv, 61103

  • Research Site

    Kyiv, 03110

  • Research Site

    Kyiv, 04112

  • Research Site

    Lviv, 79010

  • Research Site

    Odesa, 65117

  • Research Site

    Poltava, 36011

  • Research Site

    Vinnytsia, 21005

  • Research Site

    Zaporizhzhya, 69600

Other trials in Ukraine

Czechia9 sites
  • Research Site

    Brno, 656 91

  • Research Site

    Jihlava, 586 33

  • Research Site

    Moravská Ostrava, 702 00

  • Research Site

    Olomouc, 775 20

  • Research Site

    Opava, 746 01

  • Research Site

    Ostrava - Vítkovice, 70300

  • Research Site

    Prague, 128 08

  • Research Site

    Prague, 150 06

  • Research Site

    Teplice, 415 01

Other trials in Czechia

Australia8 sites
  • Research Site

    Box Hill, 3128

  • Research Site

    Chatswood, 2067

  • Research Site

    Fitzroy, 3065

  • Research Site

    Geelong, 3220

  • Research Site

    Kogarah, New South Wales, 2217

  • Research Site

    Melbourne, Victoria, 3084

  • Research Site

    New Lambton Heights, New South Wales, 2305

  • Research Site

    Sydney, 2000

Other trials in Australia

United Kingdom8 sites
  • Research Site

    London, E1 2EF

  • Research Site

    London, E1 4AT

  • Research Site

    London, SE5 9NT

  • Research Site

    London, W6 8RF

  • Research Site

    Newcastle upon Tyne, NE1 4HH

  • Research Site

    Oxford, OX3 9DU

  • Research Site

    Sheffield, S10 2JF

  • Research Site

    Stoke-on-Trent, ST4 6QG

Other trials in United Kingdom

Canada7 sites
  • Research Site

    Edmonton, T6G 2G3

  • Research Site

    Lévis, Quebec, G6V 3Z1

  • Research Site

    London, N6A 5A5

  • Research Site

    Montreal, H3A 2B4

  • Research Site

    Nova Scotia, B3H 4K4

  • Research Site

    Ottawa, K2G 6E2

  • Research Site

    Regina, S4T 7T1

Other trials in Canada

Romania7 sites
  • Research Site

    Bucharest, 011464

  • Research Site

    Bucharest, 020125

  • Research Site

    Bucharest, 022104

  • Research Site

    Bucharest, 050098

  • Research Site

    Cluj-Napoca, 400012

  • Research Site

    Târgu Mures, 540136

  • Research Site

    Timișoara, 300736

Other trials in Romania

Mexico6 sites
  • Research Site

    Guadalajara, 44610

  • Research Site

    México, 03310

  • Research Site

    México, 06700

  • Research Site

    México, 06720

  • Research Site

    Morelia, 58000

  • Research Site

    San Luis Potosí City, 78240

Other trials in Mexico

Spain5 sites
  • Research Site

    Barcelona, 08035

  • Research Site

    Córdoba, 14011

  • Research Site

    Madrid, 28040

  • Research Site

    Málaga, 29010

  • Research Site

    Seville, 41009

Other trials in Spain

Belarus4 sites
  • Research Site

    Belarus, Homyel’ Voblasc’, 246029

  • Research Site

    Belarus’, Vitebsk Oblast, 210023

  • Research Site

    Minsk, 220114

  • Research Site

    Minsk, 220116

Other trials in Belarus

Bulgaria4 sites
  • Research Site

    Rousse, 7002

  • Research Site

    Sofia, 1113

  • Research Site

    Sofia, 1309

  • Research Site

    Sofia, 1431

Other trials in Bulgaria

Estonia4 sites
  • Research Site

    Pärnu, 80010

  • Research Site

    Tallinn, 10138

  • Research Site

    Tallinn, 10617

  • Research Site

    Tartu, 51014

Other trials in Estonia

Serbia4 sites
  • Research Site

    Belgrade, 11000

  • Research Site

    Kragujevac, 34000

  • Research Site

    Niš, 18000

  • Research Site

    Novi Sad, 21000

Other trials in Serbia

Austria3 sites
  • Research Site

    Graz, 8036

  • Research Site

    Linz, 4021

  • Research Site

    Vienna, 1090

Other trials in Austria

Greece3 sites
  • Research Site

    Athens, 11527

  • Research Site

    Thessaloniki, 54636

  • Research Site

    Thessaloniki, 57010

Other trials in Greece

Israel3 sites
  • Research Site

    Ashkelon, 78278

  • Research Site

    Jerusalem, 9112001

  • Research Site

    Safed, 13100

Other trials in Israel

New Zealand3 sites
  • Research Site

    Auckland, 1023

  • Research Site

    Christchurch, 8011

  • Research Site

    Hamilton, 3204

Other trials in New Zealand

Slovakia3 sites
  • Research Site

    Bratislava, 81369

  • Research Site

    Bratislava, 82606

  • Research Site

    Martin, 03659

Other trials in Slovakia

Switzerland3 sites
  • Research Site

    Basel, 4031

  • Research Site

    Sankt Gallen, 9007

  • Research Site

    Zurich, 8091

Other trials in Switzerland

Moldova2 sites
  • Research Site

    Chisinau, 2001

  • Research Site

    Chisinau, 2028

Other trials in Moldova

Netherlands2 sites
  • Research Site

    Breda, 4818 CK

  • Research Site

    Geleen, 6162 BG

Other trials in Netherlands

South Africa2 sites
  • Research Site

    Cape Town, 7925

  • Research Site

    Durban, 4001

Other trials in South Africa

Bosnia and Herzegovina1 site
  • Research Site

    Tuzla, 75000

Other trials in Bosnia and Herzegovina

Croatia1 site
  • Research Site

    Zagreb, 10000

Other trials in Croatia

Ireland1 site
  • Research Site

    Dublin, DUBLIN 4

Other trials in Ireland

Italy1 site
  • Research Site

    Roma, 00189

Other trials in Italy

Latvia1 site
  • Research Site

    Riga, LV-1015

Other trials in Latvia

North Macedonia1 site
  • Research Site

    Skopje, 1000

Other trials in North Macedonia

Puerto Rico1 site
  • Research Site

    Guaynabo, 00968

Other trials in Puerto Rico

About this study

Official title: A Dose-Blind, Multicenter, Extension Study to Determine the Long-Term Safety and Efficacy of Two Doses of BG00012 Monotherapy in Subjects With Relapsing-Remitting Multiple Sclerosis

The primary objective of this study is to evaluate the long-term safety profile of BG00012 (dimethyl fumarate). Secondary objectives of this study are to evaluate the long-term efficacy of BG00012 using clinical endpoints and disability progression, to evaluate further the long-term effects of BG00012 on multiple sclerosis (MS) brain lesions on magnetic resonance imaging (MRI) scans in participants who had MRI scans as part of Studies 109MS301 (NCT00420212) and 109MS302 (NCT00451451) and to evaluate the long-term effects of BG00012 on health economics assessments and the visual function test.

Read the detailed description

The initial BG00012 dosage for the extension study (240 mg BID or 240 mg TID) was the same as that used in the Phase 3 Studies 109MS301 (NCT00420212) and 109MS302 (NCT00451451). Subsequent to the initiation of this study, BG00012 was approved in several countries for the treatment of MS at a dose of 240 mg BID. For this reason, all participants continuing in this study will receive the currently marketed dose of 240 mg BID.

Being tested
dimethyl fumarate, Placebo
Keywords
relapsing, multiple sclerosis, remitting, oral
Medical subject headings
Multiple Sclerosis, Relapsing-Remitting, Recurrence, Multiple Sclerosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • dimethyl fumarateDrug

    Also called BG00012, Tecfidera, DMF

    BG00012 capsules

  • PlaceboDrug

    Capsules taken to maintain the blind in the 240 mg BID treatment group.

Study groups in NCT00835770
Study groupRoleWhat they receive
BG00012 plus placeboExperimentalIn the first phase, participants will receive BG00012 240 mg (two 120 mg capsules) twice a day (BID) and 2 placebo capsules once a day. In the second phase participants will receive open-label BG00012 240 mg BID, for atleast 8 years.
Receives: Drug: dimethyl fumarate; Drug: Placebo
BG00012ExperimentalIn the first phase participants will receive BG00012 240 mg (two 120 mg capsules) three times a day (TID). In the second phase participants will receive open-label BG00012 240 mg BID for atleast 8 years.
Receives: Drug: dimethyl fumarate

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants With Treatment-Emergent Adverse Events (AEs)

    An adverse event (AE) is any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have a causal relationship with this treatment.

    Measured: Day 1 up to Week 561

Secondary outcomes (15)
  1. Percentage of Participants Who Had Relapses

    Relapses were defined as new or recurrent neurologic symptoms not associated with fever or infection, lasting at least 24 hours.

    Measured: Day 1 up to Week 384

  2. Annualized Relapse Rate (ARR)

    The annualized relapse rate is calculated as the total number of relapses occurred during the period for all participants, divided by the total number of participant-years followed in the period.

    Measured: Day 1 up to Week 384

  3. Change From Baseline in the Expanded Disability Status Scale (EDSS) at Week 384

    EDSS scale ranges from 0 (Normal neurological exam, no disability) to 10 (Death) in 0.5 unit increments that represent higher levels of disability. Scoring is based on an examination by a neurologist. Sustained disability progression was defined as at least a 1.0 point increase on the EDSS from a baseline EDSS ≥1.0 that was sustained for at least 24 weeks, or a 1.5 point increase on the EDSS from a baseline EDSS =0 that was sustained for at least 24 weeks.

    Measured: Baseline, Week 384

  4. Number of Gadolinium (Gd)-Enhancing Lesions as Measured by Magnetic Resonance Imaging (MRI)

    The Gd-enhancing lesions was evaluated using MRI technique.

    Measured: Baseline up to Week 288

  5. Volume of Gd-Enhancing Lesions as Measured by Magnetic Resonance Imaging (MRI)

    The Gd-enhancing lesions was evaluated using MRI technique.

    Measured: Baseline up to Week 288

  6. Number of New or Newly Enlarging T2 Lesions as Measured by Magnetic Resonance Imaging (MRI)

    The T2 lesions was evaluated using MRI technique.

    Measured: Baseline up to Week 288

  7. Volume of New or Newly Enlarging T2 Lesions as Measured by Magnetic Resonance Imaging (MRI)

    The T2 lesions was evaluated using MRI technique.

    Measured: Baseline up to Week 288

  8. Number of T1 Hypointense Lesions as Measured by Magnetic Resonance Imaging (MRI)

    The T1 hypointense lesions was evaluated using MRI technique.

    Measured: Baseline up to Week 288

  9. Volume of T1 Hypointense Lesions as Measured by Magnetic Resonance Imaging (MRI)

    The T1 hypointense lesions was evaluated using MRI technique.

    Measured: Baseline up to Week 288

  10. Percent Change From Baseline in Brain Atrophy

    Brain atrophy was measured using magnetic resonance imaging (MRI) technique.

    Measured: Baseline up to Week 288

  11. Percent Change From Baseline in Magnetization Transfer Ratio (MTR)

    Magnetization Transfer Ratio (MTR) was measured using MRI technique.

    Measured: Baseline up to Week 288

  12. Change From Baseline in Short Form-36 Health Survey (SF-36®) at Week 384

    The SF-36 is a brief (36-item) scale reflecting the impact of both dysfunctions and general health perception the questionnaire measures: 1.physical function (PF),2. role physical (RF),3. bodily pain (BP),4. role emotional (RE),5. social function (SF), 6. general health (GH),7. vitality (VT), 8. mental health (MH). Items 1-4 primarily contribute to the PCS score of the SF-36. Items 5-8 primarily contribute to the mental component summary (MCS) score of the SF-36. The questions related to each dimension are scored on a scale from 0 (worst score) to 100 (best score), with higher scores indicating better function.

    Measured: Baseline, Week 384

  13. Change From Baseline in EuroQol 5 Dimensions Questionnaire (EQ-5D) Health Survey - EQ-5D Index Score at Week 384

    The EQ-5D is a generic health-related quality of life instrument consisting of 2 components, EQ-5D index score and EQ-VAS. The EQ-5D provides a profile of the participant's health state in 5 dimensions (mobility, self-care, usual activities, pain/discomfort, and anxiety/depression). For each dimension, the participant is instructed to indicate whether he or she has (1) "no problems", (2) "some problems", or (3) "severe problems". A positive change from baseline indicates improvement.

    Measured: Baseline, Week 384

  14. Change From Baseline in EuroQol 5 Dimensions Questionnaire (EQ-5D) Health Survey - Visual Analog Scale (VAS) at Week 384

    The EQ-5D is a generic health-related quality of life instrument consisting of 2 components, EQ-5D index score and EQ-VAS. In EQ-VAS participants are asked to rate their current health on a 20 centimeter (cm) scale from 0 to 100 where 0 represents "worst imaginable health state" and 100 represents "best imaginable health state". A positive change from baseline indicates improvement.

    Measured: Baseline, Week 384

  15. Change From Baseline in Visual Function Test Scores at Week 384

    Participants were tested using the contrast level of 100%, 2.5%, and 1.25% charts, and the scores were defined as the number of letters identified correctly for each chart (the maximum score was 60). Higher scores indicate better functioning. A positive change from baseline indicates better functioning.

    Measured: Baseline, Week 384

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Feb 2009 (estimated)
  2. Study start3 Feb 2009
  3. Primary completion8 Nov 2019
  4. Study completion8 Nov 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
1,736 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00835770
Sponsor's protocol ID
109MS303
Other IDs
2008-004753-14, 2008
Acronym
ENDORSE
Status last verified
Dec 2020
First submitted
2 Feb 2009
Last updated
31 Dec 2020
Data monitoring committee
No

Publications

  • Amezcua L, Mao-Draayer Y, Vargas WS, Farber R, Schaefer S, Branco F, England SM, Belviso N, Lewin JB, Mendoza JP, Shankar SL; ENDORSE Study Investigators. Efficacy of Dimethyl Fumarate in Young Adults with Relapsing-Remitting Multiple Sclerosis: Analysis of the DEFINE, CONFIRM, and ENDORSE Studies. Neurol Ther. 2023 Jun;12(3):883-897. doi: 10.1007/s40120-023-00475-8. Epub 2023 Apr 15.

    PubMed 37061656
  • Gold R, Arnold DL, Bar-Or A, Fox RJ, Kappos L, Chen C, Parks B, Miller C. Safety and efficacy of delayed-release dimethyl fumarate in patients with relapsing-remitting multiple sclerosis: 9 years' follow-up of DEFINE, CONFIRM, and ENDORSE. Ther Adv Neurol Disord. 2020 May 12;13:1756286420915005. doi: 10.1177/1756286420915005. eCollection 2020.

    PubMed 32426039
  • Mehta D, Miller C, Arnold DL, Bame E, Bar-Or A, Gold R, Hanna J, Kappos L, Liu S, Matta A, Phillips JT, Robertson D, von Hehn CA, Campbell J, Spach K, Yang L, Fox RJ. Effect of dimethyl fumarate on lymphocytes in RRMS: Implications for clinical practice. Neurology. 2019 Apr 9;92(15):e1724-e1738. doi: 10.1212/WNL.0000000000007262. Epub 2019 Mar 27.

    PubMed 30918100
  • Gold R, Giovannoni G, Phillips JT, Fox RJ, Zhang A, Marantz JL. Sustained Effect of Delayed-Release Dimethyl Fumarate in Newly Diagnosed Patients with Relapsing-Remitting Multiple Sclerosis: 6-Year Interim Results From an Extension of the DEFINE and CONFIRM Studies. Neurol Ther. 2016 Jun;5(1):45-57. doi: 10.1007/s40120-016-0042-8. Epub 2016 Mar 1.

    PubMed 26932146

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing dimethyl fumarate in people with Relapsing-Remitting Multiple Sclerosis, run by Biogen at 246 sites in 34 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 31 Dec 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 246 sites in United States, Germany, Poland, India, France and 29 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 31 Dec 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants With Treatment-Emergent Adverse Events (AEs) (time frame: Day 1 up to Week 561). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00835770, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Dec 2020; AzTrials last refreshed its copy on 3 Nov 2026.

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