Induction of Immunity Against Streptococcus Pneumoniae in Adults With Inflammatory Bowel Disease
Influence of Immunosuppressive Treatment on Immunological Response to Pneumococcal Conjugated Vaccine (PCV13) in Patients With Inflammatory Bowel Disease
  • Phase

    Phase 4
  • Study Type

  • Status

    Completed No Results Posted
  • Study Participants

Patients with inflammatory bowel disease are at increased risk for infections due to their baseline disease and the subsequent immunocompromising regimen. Streptococcus pneumoniae (pneumococcus) has a high mortality and morbidity, particularly in immunosuppressed patients. A polysaccharide vaccine covering 23 different serotypes of pneumococcus (PPSV23) is currently recommended to immunocompromised patients to reduce their risk of invasive pneumococcal infections (such as bacteremia, meningitis, or pneumonia). Its immunogenicity is however limited, both in magnitude and duration, even in healthy individuals. Several studies have investigated the immunogenicity of PPSV23 in patients with IBD and have reported a marked inhibitory effect of immunosuppressive therapy on vaccine responses.

A pneumococcal conjugated vaccine (PCV) was originally developed to protect young children and demonstrated as highly effective and safe. PCV13 contains polysaccharides from thirteen different serotypes, conjugated to an inactivated diphtheria toxin, and has the capacity to induce both primary and memory responses. PCV also appears much more immunogenic than PPSV23 in immunocompromised pediatric and adult patients. Whether some therapeutic regimens may nevertheless prevent the induction of protective responses by PCV13 is yet unknown.

To date, no study has yet reported the immunogenicity / safety of PCV13 in adult IBD patients.

Study's objectives

Primary objective: evaluate the immunogenicity and safety profile of PCV13 immunization in IBD patients
Secondary objective: evaluate the relative influence of treatment and disease on immune responses to PCV13 immunization
Tertiary objective: evaluate the immunity/vulnerability against vaccine-preventable diseases (VZV, measles) in the IBD cohort of Switzerland (optional, depending on funds)
A. Inclusion:

Patients are eligible for this study if they are part of the SIBDCS and are followed in Switzerland in Geneva, Vaud, Neuchatel or Bern. Gastroenterologist will present the study to the patient during a routine follow-up visit. Inclusion will be cumulative, into 2 groups of 150 patients without (Group 1) or with (Group 2) immunosuppressive treatments.

B. Intervention

Vaccine history evaluation: A questionnaire will be filled at baseline including questions to establish patients' history of vaccine-preventable diseases and/or immunizations.
Serologic evaluation: Blood will be taken at inclusion for a baseline serological evaluation against pneumococcus. Antibody analyses will be performed using enzyme linked immunosorbent assays (ELISA) to quantify antigen-specific immunoglobulin G (IgG) antibodies. Serological evaluation against tetanus, measles and VZV could be performed through a study extension, depending on funds available.

Pneumococcal immunization: PCV13 (1 dose=0.5ml, intra-muscular) will be administrated during the same inclusion visit.

Optional intervention (depending on available funds):

Additional missing immunizations could be identified by the study team on an individualized level, based on the patient's immunological record, and presence or absence of immunosuppression.

C. Assessment of effectiveness:

A second blood sampling will be scheduled 2 months (minimum 1, maximum 4) after PCV13 administration and will to assess vaccine response to PCV13.

D. Assessment of safety:

Vaccine safety will be monitored using standardized diary cards recording local and systemic side effects at week 1, 2, 4, 6, 8 after immunization. Patient will also be contacted by phone at week 6 by the investigator who will ask standardized questions regarding vaccine safety. Potential changes in disease activity (vaccine-induced flares) will be monitored during the following 6 months, through data collected in the SIBDCS database.
Study Started
Mar 31
Primary Completion
Jun 30
Study Completion
Dec 31
Last Update
Sep 18

Biological 13-valent pneumococcal conjugated vaccine (PCV13)

Immunization with 1 dose of PCV13 (=0.5ml) intra-muscular

  • Other names: Streptococcus pneumoniae conjugated vaccine, PCV13 (Prevenar13®, Pfizer AG, Zurich), Swissmedic authorization number 60129

Patient non immunosuppressed Experimental

Group 1 : patient without immunosuppressive treatment

Patient immunosuppressed Experimental

Group 2 : patient with immunosuppressive treatment


Inclusion Criteria:

Being part of the Swiss IBD Cohort Study
Being followed in Geneva, Neuchatel, Vaud or Bern
Adult >18 years-old
informed consent form signed
acceptance of PCV13 immunization

Exclusion Criteria:

Current relapse defined as a Crohn's Disease Activity Index (CDAI) >150 for patients with Crohn's disease or a Modified Truelove-Witts Activity Index (MTWAI) >10 for patients with ulcerative colitis
Actually pregnant or planned pregnancy in the next month
Immunization with a pneumococcal vaccine (conjugated or polysaccharide) in the previous 5 years
Previous severe systemic reaction to immunization (respiratory or circulative)
Episode of fever in the last 24 hours
No Results Posted