Study assessing risk of autoimmune diseases in females (9 - 25 years) exposed to Cervarix® in United Kingdom
Trial overview
Occurrence of new onset of confirmed autoimmune disease for neuroinflammatory/ophthalmic autoimmune diseases
Timeframe: During the period of 1 year following administration of the first dose of Cervarix® (risk period) among an exposed cohort and during an equivalent time period in the unexposed cohorts
Occurrence of new onset of confirmed autoimmune disease for other autoimmune diseases
Timeframe: During the period of 1 year following administration of the first dose of Cervarix® (risk period) among an exposed cohort and during an equivalent time period in the unexposed cohorts
Occurrence of Guillain Barré syndrome (including Miller Fisher syndrome and other variants), and autoimmune haemolytic anaemia
Timeframe: Within 2 months following the administration of the first dose of Cervarix®
Occurrence of idiopathic thrombocytopenic purpura (ITP)
Timeframe: Within six months following the administration of the first dose of Cervarix®
Occurrence of new onset of individual confirmed autoimmune disease
Timeframe: Within 1 year following the administration of the first dose of Cervarix®
- Note: Other vaccines are allowed in this study regardless of the time of administration and the time interval between subsequent doses.
- Inclusion criteria for the exposed female cohort:
- Exclusion criteria for all cohorts:
- Subjects with a diagnostic code of any auto-immune disease during the year prior to the reference date.
- Female aged from 9 to 25 years at the reference date (01 September 2008 through 31 August 2010).
- Recorded in the CPRD GOLD for at least 12 months before the reference date.
- The first dose of Cervarix received between 01 September 2008 through 31 August 2010, Full date (day/month/year) of Cervarix vaccination(s) available.
- Subject defined as acceptable in CPRD GOLD. Inclusion criteria for the unexposed historical female cohort:
- Female aged 9 to 25 years at the reference date (01 September 2005 through 31 August 2007).
- Recorded in the CPRD GOLD for at least 12 months before the reference date.
- Subject defined as acceptable in CPRD GOLD. Inclusion criteria for the unexposed concurrent male cohort:
- Male aged 9 to 25 years at the reference date (01 September 2008 through 31 August 2010).
- Recorded in the CPRD GOLD for at least 12 months before the reference date.
- Subject defined as acceptable in CPRD GOLD. Inclusion criteria for the unexposed historical male cohort:
- Male aged 9 to 25 years at the reference date (01 September 2005 through 31 August 2007).
- Recorded in the CPRD GOLD for at least 12 months before the reference date.
- Subject defined as acceptable in CPRD GOLD.
Note: Other vaccines are allowed in this study regardless of the time of administration and the time interval between subsequent doses. Inclusion criteria for the exposed female cohort:
- Subjects with a diagnostic code of any auto-immune disease during the year prior to the reference date.
- Subjects who received at least one dose of unspecified HPV vaccine or Gardasil at any time before the reference date.
- Subjects who have been included in the other cohort. Exclusion criteria for the non-exposed cohorts:
- Subjects who received any dose of Cervarix at any time before the reference date.
Exclusion criteria for all cohorts:
Trial location(s)
This study does not involve prospective enrollment of participants.
Study documents
If you wish to request for full study report, please contact - [email protected]
Results overview
Refer to study documents
Plain language summaries
Not applicable. GSK’s transparency policy provides for Plain Language Summaries for Interventional studies.