An Observational, Cross-Sectional Survey to Assess PML Risk Awareness and Understanding from Patients’ Perspective and Effectiveness of the Tysabri (Natalizumab) Patient Alert Card in the UK (T-PAC)

ENCePP Code of conduct

No

Data sources

• Data source(s), other:
  UK MS Register (UKMSR)
• Data sources (types):
  Other
• Data sources (types), other:
  Population from UKMSR that have declared that they are currently taking Tysabri or had been taking it within 6 months of questionnaire deployment.

Use of a Common Data Model (CDM)

• CDM mapping:
  No

Data quality specifications

• Check conformance:
  Unknown
• Check completeness:
  Unknown
• Check stability:
  Unknown
• Check logical consistency:
  Unknown

Data characterisation

• Data characterisation conducted:
  No