1
|
Davies HG, Thorley EV, Al-Bahadili R, Sutton N, Burt J, Hookham L, Karampatsas K, Lambach P, Muñoz F, Cutland CL, Omer S, Le Doare K. Defining and reporting adverse events of special interest in comparative maternal vaccine studies: a systematic review. Vaccine X 2024; 18:100464. [PMID: 38495929 PMCID: PMC10943481 DOI: 10.1016/j.jvacx.2024.100464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/07/2024] [Accepted: 02/18/2024] [Indexed: 03/19/2024] Open
Abstract
Introduction The GAIA (Global Alignment on Immunisation Safety Assessment in Pregnancy) consortium was established in 2014 with the aim of creating a standardised, globally coordinated approach to monitoring the safety of vaccines administered in pregnancy. The consortium developed twenty-six standardised definitions for classifying obstetric and infant adverse events. This systematic review sought to evaluate the current state of adverse event reporting in maternal vaccine trials following the publication of the case definitions by GAIA, and the extent to which these case definitions have been adopted in maternal vaccine safety research. Methods A comprehensive search of published literature was undertaken to identify maternal vaccine research studies. PubMed, EMBASE, Web of Science, and Cochrane were searched using a combination of MeSH terms and keyword searches to identify observational or interventional studies that examined vaccine safety in pregnant women with a comparator group. A two-reviewer screening process was undertaken, and a narrative synthesis of the results presented. Results 14,737 titles were identified from database searches, 435 titles were selected as potentially relevant, 256 were excluded, the remaining 116 papers were included. Influenza vaccine was the most studied (25.0%), followed by TDaP (20.7%) and SARS-CoV-2 (12.9%).Ninety-one studies (78.4%) were conducted in high-income settings. Forty-eight (41.4%) utilised electronic health-records. The majority focused on reporting adverse events of special interest (AESI) in pregnancy (65.0%) alone or in addition to reactogenicity (27.6%). The most frequently reported AESI were preterm birth, small for gestational age and hypertensive disorders. Fewer than 10 studies reported use of GAIA definitions. Gestational age assessment was poorly described; of 39 studies reporting stillbirths 30.8% provided no description of the gestational age threshold. Conclusions Low-income settings remain under-represented in comparative maternal vaccine safety research. There has been poor uptake of GAIA case definitions. A lack of harmonisation and standardisation persists limiting comparability of the generated safety data.
Collapse
Affiliation(s)
- Hannah G Davies
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
- MRC, UVRI & LSHTM Uganda Research Centre, Entebbe, Uganda
- Makerere University John Hopkins Research Unit, Kampala, Uganda
| | - Emma V Thorley
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
| | - Rossul Al-Bahadili
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
| | - Natalina Sutton
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
| | - Jessica Burt
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
| | - Lauren Hookham
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
| | - Kostas Karampatsas
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
| | | | - Flor Muñoz
- Paediatric Infectious Diseases Department, Baylor College of Medicine, Houston, TX, USA
| | - Clare L Cutland
- Wits African Leadership in Vaccinology Expertise (Wits-Alive), School of Pathology, Faculty of Health Science, University of the Witwatersrand, Johannesburg, South Africa
| | - Saad Omer
- O’Donnell School of Public Health, UT Southwestern Medical Center, Texas, USA
| | - Kirsty Le Doare
- Centre for Neonatal and Paediatric Infection, Institute of Infection & Immunity, St George’s, University of London, Cranmer Terrace, Tooting, London, United Kingdom
- Makerere University John Hopkins Research Unit, Kampala, Uganda
- World Health Organization, Geneva, Switzerland
| |
Collapse
|
2
|
Vauzelle C, Elefant E, Coulm B, Latour M, Beghin D, Marin B. [Varicella vaccination, pregnancy and breastfeeding: The current situation]. GYNECOLOGIE, OBSTETRIQUE, FERTILITE & SENOLOGIE 2024; 52:432-435. [PMID: 38309510 DOI: 10.1016/j.gofs.2024.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 01/26/2024] [Indexed: 02/05/2024]
Abstract
The varicella vaccine is recommended for women with no history of varicella who are planning to become pregnant, as well as for post-pregnancy women, to prevent the occurrence of this illness and its severe complications, especially an embryopathy, when it occurs in a pregnant woman (congenital varicella syndrome). This live attenuated vaccine should not be administered during pregnancy, nor in the month preceding it. However, when this occurs inadvertently, the data collected on the outcomes of exposed pregnancies, although few in women seronegative at the time of vaccination, allow to reassure the patients to date, as no congenital varicella syndrome has been reported to date following accidental vaccination in early pregnancy. On the other hand, during breastfeeding, a woman may be vaccinated if there is an expected short- or medium-term benefit (varicella exposure, planned pregnancy…).
Collapse
Affiliation(s)
- Catherine Vauzelle
- Département de santé publique, Centre de référence sur les agents tératogènes (CRAT), hôpital Trousseau, Sorbonne université, AP-HP, 75012 Paris, France.
| | - Elisabeth Elefant
- Département de santé publique, Centre de référence sur les agents tératogènes (CRAT), hôpital Trousseau, Sorbonne université, AP-HP, 75012 Paris, France
| | - Bénédicte Coulm
- Inserm, Institut Pierre Louis d'épidémiologie et de santé publique, Département de santé publique, Centre de référence sur les agents tératogènes (CRAT), hôpital Trousseau, Sorbonne université, AP-HP, 75012 Paris, France
| | - Mathilde Latour
- Département de santé publique, Centre de référence sur les agents tératogènes (CRAT), hôpital Trousseau, Sorbonne université, AP-HP, 75012 Paris, France
| | - Delphine Beghin
- Département de santé publique, Centre de référence sur les agents tératogènes (CRAT), hôpital Trousseau, Sorbonne université, AP-HP, 75012 Paris, France
| | - Benoît Marin
- Inserm, Institut Pierre Louis d'épidémiologie et de santé publique, Département de santé publique, Centre de référence sur les agents tératogènes (CRAT), hôpital Trousseau, Sorbonne université, AP-HP, 75012 Paris, France
| |
Collapse
|
3
|
Singal A, Schwartz RA, Bhate C. Herpes zoster infection in pregnancy: features and consequences. Arch Dermatol Res 2024; 316:107. [PMID: 38489022 DOI: 10.1007/s00403-024-02842-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 03/17/2024]
Abstract
Herpes (varicella) zoster (HZ) infection occurs in 4 people per 1000 in the general US population (irrespective of prior varicella infection and vaccination status) each year and has been the subject of scientific inquiry for decades. The consequences of infection are myriad and may depend on the dermatome of involvement as well as host factors such as age, comorbidities, prior treatment or immunization, and immunologic status. Pregnancy is associated with an altered immune and hormonal status in the mother. While maternal HZ infection during pregnancy is not uncommon, the implications for both mother and child are not well established, although multiple studies of perinatal maternal HZ infection suggest no intrauterine transmission to the fetus. We review the current literature on herpes zoster infection in pregnancy, including epidemiology, diagnosis, potential immunologic sequelae, and strategies for prevention and treatment.
Collapse
Affiliation(s)
- Amit Singal
- Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Robert A Schwartz
- Dermatology and Pathology, Rutgers New Jersey Medical School, 185 South Orange Avenue, Newark, NJ, 07103, USA.
| | - Chinmoy Bhate
- Dermatology and Pathology, Rutgers New Jersey Medical School, 185 South Orange Avenue, Newark, NJ, 07103, USA
| |
Collapse
|
4
|
Velez MP, Fell DB, Shellenberger JP, Kwong JC, Ray JG. Miscarriage after SARS-CoV-2 vaccination: A population-based cohort study. BJOG 2024; 131:415-422. [PMID: 37973606 DOI: 10.1111/1471-0528.17721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/23/2023] [Accepted: 10/31/2023] [Indexed: 11/19/2023]
Abstract
OBJECTIVE To evaluate the risk of miscarriage following SARS-CoV-2 vaccination, while accounting for the competing risk of induced abortion. DESIGN Population-based cohort study. SETTING Ontario, Canada. PARTICIPANTS Women aged 15-50 years with a confirmed pregnancy at ≤19 completed weeks' gestation. METHODS Exposure to first SARS-CoV-2 vaccination, handled in a time-varying manner, was defined as (i) unvaccinated, (ii) remotely vaccinated >28 days before the estimated conception date or (iii) recently vaccinated ≤28 days before conception and up to 120 days after conception. MAIN OUTCOME MEASURES The outcome was miscarriage, occurring between the estimated date of conception and up to 19 completed weeks of pregnancy. Fine-Grey hazard models, accounting for the competing risk of induced abortion, generated hazard ratios (aHR), adjusted for socio-demographic factors, comorbidities, and biweekly periods. RESULTS Included were 246 259 pregnant women, of whom 34% received a first SARS-CoV-2 vaccination. Miscarriage occurred at a rate of 3.6 per 10 000 person-days among remotely vaccinated women and 3.2 per 10 000 person-days among those recently vaccinated, in contrast to a rate of 1.9 per 10 000 person-days among unvaccinated women, with corresponding aHR of 0.98 (95% confidence interval [CI] 0.91-1.07) and 1.00 (95% CI 0.93-1.08). CONCLUSIONS SARS-CoV-2 vaccination was not associated with miscarriage while accounting for the competing risk of induced abortion. This study reiterates the importance of including pregnant women in new vaccine clinical trials and registries, and the rapid dissemination of vaccine safety data.
Collapse
Affiliation(s)
- Maria P Velez
- Department of Obstetrics and Gynaecology, Queen's University, Kingston, Ontario, Canada
- ICES, Toronto, Ontario, Canada
| | - Deshayne B Fell
- ICES, Toronto, Ontario, Canada
- Children's Hospital of Eastern Ontario (CHEO) Research Institute, Ottawa, Ontario, Canada
| | | | - Jeffrey C Kwong
- ICES, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| | - Joel G Ray
- ICES, Toronto, Ontario, Canada
- University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|