TECFIDERA effectiveness

Understanding the potential benefits of Tecfidera® (dimethyl fumarate)

In separate 2-year clinical studies of patients with relapsing-remitting MS, TECFIDERA was tested against a placebo, or "fake" pill—a standard way to measure if a drug works as expected. In the first trial, 410 people took TECFIDERA and 408 took placebo (“a fake pill”). In the second trial, 359 people took TECFIDERA and 363 took placebo.

Find out how TECFIDERA was shown to be effective against relapsing MS

Cut relapses

Relapses, also called flare-ups or exacerbations, can be disruptive. Reducing the risk of relapses should be one of the goals of treatment.

Although no relapsing MS medication completely gets rid of relapses, TECFIDERA cut relapses when compared with placebo.

TECFIDERA cut the risk of relapses

In TECFIDERA studies, TECFIDERA was shown to cut risk of relapses in half

Study 1

27% of people taking TECFIDERA had a relapse, compared with 46% taking placebo

In TECFIDERA studies, TECFIDERA was shown to cut risk of relapses in half

Study 2

29% of people taking TECFIDERA had a relapse, compared with 41% taking placebo

TECFIDERA cut the number of relapses by nearly half

In TECFIDERA studies, TECFIDERA was shown to cut risk of relapses in half

Study 1

TECFIDERA cut the number of relapses by 53% compared with placebo

(TECFIDERA 0.172, Placebo 0.364)

In TECFIDERA studies, TECFIDERA was shown to cut risk of relapses in half

Study 2

TECFIDERA cut the number of relapses by 44% compared with placebo

(TECFIDERA 0.224, Placebo 0.401)

Delay the progression of physical disability

When you have relapsing MS, you know how important it is to stay as active and mobile as you possibly can.

TECFIDERA was shown to delay the progression of physical disability, which is an important goal of treatment.

Study 1
16% of people taking TECFIDERA experienced disability progression, compared with 27% taking placebo

Study 2
13% of people taking TECFIDERA experienced disability progression, compared with 17% taking placebo

It cannot be determined if changes were due to TECFIDERA

Slow the development of brain lesions

The link between brain lesions and the progression of MS has not been confirmed. However, brain lesions can happen without you feeling them, and may be a sign that the disease is active. Lesions revealed on an MRI scan may help your healthcare provider determine how well your treatment is working. Talking to your healthcare provider about the results of your MRI could help with the management of your relapsing MS.

TECFIDERA slowed the development of brain lesions

To understand the impact of TECFIDERA on brain lesions, researchers looked at lesions using 3 different MRI techniques to determine the age and stage of the lesions. Based on all 3 measures, people taking TECFIDERA had fewer lesions compared with those
taking placebo.

Study 1

ACTIVE INFLAMMATION

(Average number of Gd+
lesions at 2 years)

1.8

Placebo

0.1

Tecfidera

Gd+ lesions:
Inflamed brain tissue that is attacked and considered “active.” These lesions disappear when inflammation decreases.

Clinical trial results

90%
fewer Gd+ lesions for TECFIDERA

LONG-TERM IMPACT OF INFLAMMATION

(Average number of new or newly enlarging T2 lesions over 2 years)

17.0

Placebo

2.6

Tecfidera

T2 lesions:
Scars that indicate the long-term impact of MS on the brain. They can either be new lesions or old lesions that develop again.

Clinical trial results

85%
fewer T2 lesions for TECFIDERA

POSSIBLE
PERMANENT DAMAGE

(Average number of new
T1 lesions over 2 years)

5.6

Placebo

1.5

Tecfidera

T1 lesions:
Nerve cells in the brain that can’t be repaired, which can mean a loss of function.

Clinical trial results

72%
fewer T1 lesions for TECFIDERA

Study 2

ACTIVE INFLAMMATION

(Average number of Gd+
lesions at 2 years)

2.0

Placebo

0.5

Tecfidera

Gd+ lesions:
Inflamed brain tissue that is attacked and considered “active.” These lesions disappear when inflammation decreases.

Clinical trial results

74%
fewer Gd+ lesions for TECFIDERA

LONG-TERM IMPACT OF INFLAMMATION

(Average number of new or newly enlarging T2 lesions over 2 years)

17.4

Placebo

5.1

Tecfidera

T2 lesions:
Scars that indicate the long-term impact of MS on the brain. They can either be new lesions or old lesions that develop again.

Clinical trial results

71%
fewer T2 lesions for TECFIDERA

POSSIBLE
PERMANENT DAMAGE

(Average number of new
T1 lesions over 2 years)

7.0

Placebo

3.0

Tecfidera

T1 lesions:
Nerve cells in the brain that can’t be repaired, which can mean a loss of function.

Clinical trial results

57%
fewer T1 lesions for TECFIDERA