Rebif® Pregnancy Registry

Inclusion Criteria:

• Rebif®-Exposed Group

For prospective follow-up, women in the United States and Canada shall be eligible for enrollment in the Rebif® Pregnancy Registry as subjects if:

• They are pregnant.
• They received Rebif® for treatment of Multiple Sclerosis (MS) within one week before or at any time after conception.
• The outcome of pregnancy has not been previously evaluated by any diagnostic method such as ultrasound. However, since ultrasound techniques are often used at early stages to confirm pregnancy, patients who have been evaluated by ultrasound for the purpose of confirming the pregnancy shall be eligible for enrollment in the Registry. The use of ultrasound and any inferences that could be made about the outcome of the patient's pregnancy will be reported on the case report form. Following enrollment in the Registry, diagnostic tests may be performed at any time during the pregnancy.
• They have not used Copaxone® for treatment of MS within the previous three months and have not been exposed to Novantrone®, Imuran®, Cytoxan®, Tysabri® or methotrexate at any time.

Patients who have been exposed to an investigational product or procedure within the previous year may be enrolled at the discretion of the Medical Director. The enrolling physician should contact Serono's authorized agent, a company called Registrat, at 866-997-3243 to request a review of each patient's situation.

Interferon-beta -Not Exposed Comparison Group

Women with MS who live in the United States or Canada will be eligible for the comparison group if:

• They are pregnant.
• The outcome of pregnancy has not been previously evaluated by any diagnostic method such as ultrasound. However, since ultrasound techniques are often used at early stages to confirm pregnancy, patients who have been evaluated by ultrasound for the purpose of confirming the pregnancy shall be eligible for enrollment in the Registry. The use of ultrasound and any inferences that could be made about the outcome of the patient's pregnancy will be reported on the case report form. Following enrollment in the Registry, diagnostic tests may be performed at any time during the pregnancy.
• They have not received any interferon-beta within 90 days of conception.
• They have not used Copaxone® for treatment of MS within the previous three months and have not been exposed to Novantrone®, Imuran®, Cytoxan®, Tysabri® or methotrexate at any time.

Patients who have been exposed to an investigational product or procedure within the previous year may be enrolled at the discretion of the Medical Director. The enrolling physician should contact Serono's authorized agent, a company called Registrat, at 866-997-3243 to request a review of each patient's situation.

Exclusion Criteria:

• Not Applicable