NCT03509051

Brief Summary

Allogeneic hematopoietic stem cell transplant (HSCT) recipients are at risk of various bacterial infections, especially due to a progressive decrease of specific antibodies. Around 90% of HSCT recipients have unprotective titers of specific antibodies to serogroups A and C meningogocci (Parkkali 2001; Mahler 2012). Some small studies suggest that the response to meningococcal A and C vaccines is close to 100% after 3 doses given 18 months after transplant. Although the response to 2 doses of 4CMenB is over 75% in other immunocompromised patients (Feavers, 2017), studies with 4CMenB are lacking after HSCT. Nevertheless, as serogroup B caused 74% of IMD in Europe between 2004-2014 (Whittaker, 2017), the meningococcal B vaccination is recommended by the more recent guidelines from 6 months after transplant. There are, however, no data on the safety and efficacy of this vaccine after hematopoietic stem cell allograft (HSCT). The objective of this study is to assess the response to 2 doses of a multicomponent meningococcal B vaccine (4CMenB) given at 2 months interval in adult allogeneic HSCT recipients transplanted at least 6 months ago. The response will be assessed 1 month and 10 months after the second dose of vaccine by measuring bactericidal antibodies against NadA, fHbp, NHBA and PorAP1 vaccinal antigens according to methods previously reported (Caron Lancet Infect Dis 2011). The response rate will be correlated to pre- and post-transplant factors. The hypothesis of this study is that 80% of the patients should have protective titers one month after the 2nd dose.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2019

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 13, 2018

Completed
13 days until next milestone

First Posted

Study publicly available on registry

April 26, 2018

Completed
1.1 years until next milestone

Study Start

First participant enrolled

June 1, 2019

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 13, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 13, 2020

Completed
Last Updated

October 26, 2020

Status Verified

September 1, 2020

Enrollment Period

10 months

First QC Date

April 13, 2018

Last Update Submit

October 23, 2020

Conditions

Keywords

Allogeneic stem cell transplantation

Outcome Measures

Primary Outcomes (1)

  • % of patients with Bactericidal titers > 4 to at least one component of the Bexsero vaccine, 1 month after the 2nd dose.

    Vaccine response rate at one month after the 2nd dose.

    1 month

Secondary Outcomes (2)

  • % of patients with Bactericidal titers > 4 to at least one component of the Bexsero vaccine, 12 months after the 1st dose.

    12 month

  • Number of adverse events of vaccination by Bexsero after Allograft of CSH.

    12 month

Study Arms (1)

B vaccination

EXPERIMENTAL

One intramuscular injection of Bexsero (multicomponent B vaccine) from 6 months after transplant. A second similar dose will be given 2 months later.

Biological: B vaccination

Interventions

B vaccinationBIOLOGICAL

One intramuscular injection of Bexsero (multicomponent B vaccine) from 6 months after transplant. A second similar dose will be given 2 months later.

B vaccination

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Allogeneic HSCT at least 6 months before
  • Age ≥ 18 years
  • Platelet count \> 50 G/L

You may not qualify if:

  • Rituximab administration in the previous 6 months
  • Relapse of the underlying disease

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Henri-Mondor Hospital

Créteil, Val De Marne, 94000, France

Location

Related Publications (5)

  • Caron F, du Chatelet IP, Leroy JP, Ruckly C, Blanchard M, Bohic N, Massy N, Morer I, Floret D, Delbos V, Hong E, Revillion M, Berthelot G, Lemee L, Deghmane AE, Benichou J, Levy-Bruhl D, Taha MK. From tailor-made to ready-to-wear meningococcal B vaccines: longitudinal study of a clonal meningococcal B outbreak. Lancet Infect Dis. 2011 Jun;11(6):455-63. doi: 10.1016/S1473-3099(11)70027-5. Epub 2011 Apr 12.

    PMID: 21489881BACKGROUND
  • Mahler MB, Taur Y, Jean R, Kernan NA, Prockop SE, Small TN. Safety and immunogenicity of the tetravalent protein-conjugated meningococcal vaccine (MCV4) in recipients of related and unrelated allogeneic hematopoietic stem cell transplantation. Biol Blood Marrow Transplant. 2012 Jan;18(1):145-9. doi: 10.1016/j.bbmt.2011.07.027. Epub 2011 Aug 4.

    PMID: 21820392BACKGROUND
  • Parkkali T, Kayhty H, Lehtonen H, Ruutu T, Volin L, Eskola J, Ruutu P. Tetravalent meningococcal polysaccharide vaccine is immunogenic in adult allogeneic BMT recipients. Bone Marrow Transplant. 2001 Jan;27(1):79-84. doi: 10.1038/sj.bmt.1702742.

    PMID: 11244441BACKGROUND
  • Rubin LG, Levin MJ, Ljungman P, Davies EG, Avery R, Tomblyn M, Bousvaros A, Dhanireddy S, Sung L, Keyserling H, Kang I; Infectious Diseases Society of America. 2013 IDSA clinical practice guideline for vaccination of the immunocompromised host. Clin Infect Dis. 2014 Feb;58(3):309-18. doi: 10.1093/cid/cit816.

    PMID: 24421306BACKGROUND
  • Whittaker R, Dias JG, Ramliden M, Kodmon C, Economopoulou A, Beer N, Pastore Celentano L; ECDC network members for invasive meningococcal disease. The epidemiology of invasive meningococcal disease in EU/EEA countries, 2004-2014. Vaccine. 2017 Apr 11;35(16):2034-2041. doi: 10.1016/j.vaccine.2017.03.007. Epub 2017 Mar 14.

    PMID: 28314560BACKGROUND

Study Officials

  • Christine Robin, MD

    Assistance Publique des Hopitaux de Paris

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 13, 2018

First Posted

April 26, 2018

Study Start

June 1, 2019

Primary Completion

March 13, 2020

Study Completion

March 13, 2020

Last Updated

October 26, 2020

Record last verified: 2020-09

Locations