An Extension Protocol for Multiple Sclerosis Patients Who Participated in Genzyme-Sponsored Studies of Alemtuzumab

Overview

About this study

This open-label, rater-blinded extension study will enroll patients who have relapsing-remitting multiple sclerosis (RRMS) and who participated in one of three prior Genzyme-sponsored studies of alemtuzumab [CAMMS223 (NCT00050778), CAMMS323 (NCT00530348) also known as CARE-MS I, or CAMMS324 (NCT00548405) also known as CARE-MS II].

The purposes of this study are:

1. To examine the long term safety and efficacy of alemtuzumab treatment in patients who received alemtuzumab as their study treatment in one of the prior studies.

2. To examine the safety and efficacy of initial alemtuzumab treatment in this study for patients who received Rebif® (interferon beta-1a) as their study treatment in one of the prior studies.

3. To determine if and when further alemtuzumab treatment is needed, and the safety and efficacy of this "as needed" treatment. This applies both to patients who received alemtuzumab for the first time in one of the prior studies or for the first time in this extension study.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • 1.Received alemtuzumab in CAMMS323 or CAMMS324, completed the 2-year study period, and have not subsequently received disease modifying treatments (other than glatiramer acetate or interferon beta); or
  • 2.Received Rebif® in CAMMS323 or CAMMS324, completed the 2-year study period, and have not subsequently received alternative disease modifying treatments (other than glatiramer acetate or another interferon beta); or
  • 3.Participated in CAMMS223.
  • NOTE: Criteria 1 and 2 above mean that patients who enrolled in CAMMS323 or CAMMS324 but did not complete the 2-year study period or went on to receive non-study drug DMTs after randomization are not eligible for inclusion in the Extension Study. Patients who enrolled in CAMMS324 after participation in CAMMS223 must meet criteria 1 or 2 to be eligible for inclusion in the Extension Study.

Exclusion Criteria:

  • Any alemtuzumab patient from CAMMS223, CAMMS323, or CAMMS324 who has received alemtuzumab off-label (ie, outside of one of the prior Genzyme-sponsored studies), or is participating in any other investigational study, unless approved by Genzyme. In addition, these patients must be screened for disqualifying safety concerns before receiving alemtuzumab retreatment.
  • Any Rebif® patient from CAMMS223, CAMMS323, or CAMMS324 who meets any of the following criteria. In addition, these patients must be screened for disqualifying safety concerns before receiving alemtuzumab treatment. a)Does not wish to receive alemtuzumab; b) Ongoing participation in any other investigational study, unless approved by Genzyme; c)Has received alemtuzumab off-label (ie, outside of one of the prior Genzyme-sponsored studies); d)Known bleeding disorder or therapeutic anticoagulation; e)Diagnosis of idiopathic thrombocytopenia purpura or other autoimmune hematologic abnormality; f)History of malignancy, except basal cell skin carcinoma; g)Intolerance of pulsed corticosteroids, especially a history of steroid psychosis h)Significant Autoimmune disorder (other than MS); i)Major psychiatric disorder or epileptic seizures not adequately controlled by treatment; j)Active infection or high risk for infection k)Unwilling to use a reliable and acceptable contraceptive method during and for at least 6 months following each alemtuzumab treatment cycle (fertile patients only).

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status

Scottsdale/Phoenix, Ariz.

Mayo Clinic principal investigator

Jonathan Carter, M.D.

Closed for enrollment

More information

Publications

  • The anti-CD52 monoclonal antibody alemtuzumab reduces disease activity in previously untreated patients with relapsing-remitting multiple sclerosis. We aimed to assess efficacy and safety of alemtuzumab compared with interferon beta 1a in patients who have relapsed despite first-line treatment. Read More on PubMed
  • The anti-CD52 monoclonal antibody alemtuzumab reduced disease activity in a phase 2 trial of previously untreated patients with relapsing-remitting multiple sclerosis. We aimed to assess efficacy and safety of first-line alemtuzumab compared with interferon beta 1a in a phase 3 trial. Read More on PubMed
  • Alemtuzumab, a humanized monoclonal antibody that targets CD52 on lymphocytes and monocytes, may be an effective treatment for early multiple sclerosis. Read More on PubMed

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