Study | Country Study period |
Population source | Exposure definition | Non-exposure definition | Sample size | Rmk |
---|---|---|---|---|---|---|
Broms (Controls exposed to other treatments), 2020 |
Denmark, Finland and Sweden 2006 - 2013 |
All women who gave birth to a singleton infant during the study period. | Women who filled prescriptions for Adalimumab within 90 days before their LMP until delivery. (This is a subgroup of exposure among the whole exposed group considered in the study). |
exposed to other treatment, sick
Women who filled prescriptions for Nonbiologic systemic treatment (mainly azathioprine, corticosteroids, sulfasalazine, anti-malarials, and methotrexate) within 90 days before their LMP until delivery. |
257 / 9393 | |
Broms (Controls unexposed, disease free), 2020 |
Denmark, Finland and Sweden 2006 - 2013 |
All women who gave birth to a singleton infant during the study period. | Women who filled prescriptions for Adalimumab within 90 days before their LMP until delivery. (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed, disease free
The general population (women without the diseases of interest and without treatment). |
257 / 1623483 | |
Bröms (controls unexposed, disease free), 2016 |
Denmark and Sweden 2004/6 - 2012 |
Women and their infants up to 1 year of age (among all 15 million residents of Denmark and Sweden). | Women who had filled prescriptions for adalimumab within 90 days before and 90 days after their last menstrual period. (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed, disease free
Women without disease or TNF treatment (ie, the general population). |
161 / 1250192 | Primary analyse on Anti-TNF, with individual result by substance (n=161 ADA). |
Bröms (controls unexposed, sick), 2016 |
Denmark and Sweden 2004/6 - 2012 |
Women and their infants up to 1 year of age (among all 15 million residents of Denmark and Sweden). | Women who had filled prescriptions for adalimumab within 90 days before and 90 days after their last menstrual period. (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed, sick
Women with chronic inflammatory disease but no anti-TNF treatment. |
161 / 21549 | Primary analyse on Anti-TNF, with individual result by substance (n=161 ADA). Controls: Corticosteroids (7.7%); anti-inflammatory treatments (20.8%: AZA, mercaptopurine, cyclosporine, acitretin, mycophenolate...); MTX (0.2%). |
Casanova, 2013 |
Spain Not specified |
All women who had become pregnant after the diagnosis of Crohn’s disease (CD) or ulcerative colitis (UC) followed in the IBD Units from 24 Spanish hospitals. | Pregnancies in IBD patients on adalimumab during pregnancy or during the 3 months before conception. (This is a subgroup of exposure among the whole exposed group considered in the study). |
exposed to other treatment, sick
Pregnancies in IBD patients which did not receive thiopurines or anti-TNF-α drugs either during pregnancy or the 3 months before conception. (84% exposed to 5-Aminosalicylates and/or steroids). |
16 / 318 | Primary aim: evaluate the safety of thiopurines and anti-TNF-α during conception and pregnancy in IBD patients. Exposed population divided in 2 groups: A) thiopurines alone; B) anti-TNF-α drugs (IFX, ADA, and CZB) with or without concomitant thiopurines. |
Chambers (Controls unexposed, disease free), 2019 |
USA and Canada 2004 - 2016 |
Pregnant women and their health care providers who contact the services with questions about the risks of exposures in pregnancy. | Pregnant women with a diagnosis of rheumatoid arthritis or Crohn’s Disease who received at least one dose of adalimumab in the first trimester. |
unexposed, disease free
Pregnant women have a rheumatic disease or an inflammatory bowel disease, no treatment with a monoclonal antibody medication in pregnancy. |
257 / 225 | |
Chambers (Controls, sick), 2019 |
USA and Canada 2004 - 2016 |
Pregnant women and their health care providers who contact the services with questions about the risks of exposures in pregnancy. | Pregnant women with a diagnosis of rheumatoid arthritis or Crohn’s Disease who received at least one dose of adalimumab in the first trimester. |
unexposed, sick
Pregnant women with a diagnosis of rheumatoid arthritis or Crohn’s Disease who not used adalimumab at any time during pregnancy. |
257 / 120 | Unexposed group: exposure to another anti-TNF-α medication:18/120 (15%). Sensitivity analyse excluding women from the disease-matched unexposed group with anti-TNF-α medication in pregnancy, produced similar results (data not shown). |
De Lorenzo (Controls unexposed, disease free), 2020 |
Italy 2009 - 2017 |
Mothers who attended the Clinic. | Children born to mothers with autoimmune diseases on Adalimumab therapy during pregnancy. (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed, disease free
Children born to healthy mothers. |
2 / 36 | |
De Lorenzo (Controls unexposed, sick), 2020 |
Italy 2009 - 2017 |
Mothers who attended the Clinic. | Children born to mothers with autoimmune diseases on Adalimumab therapy during pregnancy. (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed, sick
Children born to mothers with autoimmune diseases not treated with Biologic disease-modifying anti-rheumatic drugs (bDMARDs). |
2 / 32 | Unexposed: 13 of 32 neonates were born to mothers under no immunosuppressive, 15 to HCQ, 1 to AZA and 3 to both AZA and HCQ. |
Hoxha, 2017 |
Italia 2008 - 2015 |
Patients with rheumatoid arthritis, ankylosing spondylitis and psoriatic arthritis attending four Rheumatology Units. | Pregnancies in patients which were treated with Adalimumab at conception/ 1st trimester [anti-TNFa therapy was discontinued between 7th-11th weeks of gestations (WG)]. (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed, sick
Pregnancies in women withdrawn anti-TNFa prior to conception [anti-TNFa therapy was discontinued between one to six months prior to conception, following the leaflet recommendations]. |
5 / 11 | Primary analyse concerned AntiTNFa group, which was further categorized into those exposed to ETN (n=17), ADA (n=5) or CZP (n=2) at conception; and 3 paternal exposures (ETN). Raw individual data provided for each substance and used for the meta-analysis. |
Hyrich, 2006 |
United Kingdom Until 2005 |
Patients with rheumatic diseases directly exposed to anti-TNFa therapies during or immediately prior to pregnancy. | Patients who were directly exposed to adalimumab at the time of conception. (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed, sick
Patients who electively discontinued their anti-TNFa therapy prior to conceiving (range 1–10 months before conception). |
3 / 9 | All but 2 etanercept patients discontinued their during the first trimester of pregnancy. |
Langen, 2014 |
USA 2001 - 2009 |
All pregnancies complicated by Rheumatoid arthritis (RA) delivered at the institution. | Women with adalimumab only near the time of conception. (This is a subgroup of exposure among the whole exposed group considered in the study). |
exposed to other treatment, sick
Women with prednisone only near the time of conception. (This is a subgroup of exposure among the whole exposed group considered in the study). |
1 / 15 | Co-exposure Prednisolone, plaquenil and etanercept (discontinuation of Plaquenil and etanercept). |
Schnitzler (Unexposed control, disease free), 2011 |
Belgium 1994 - 2007 |
Pregnant women who delivered at the University Hospital in Leuven. | Pregnant IBD patients treated with ADA within 3 months prior to conception and/or during pregnancy. (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed, disease free
Matched pregnancies of healthy women out of the Flemish population who delivered at the University Hospital in Leuven. |
7 / 56 | Main analysis: pregnancies with IFX (n=35) or ADA (n =7), but for malformations, raw data provided for each substance and used for this meta-analysis. |
Schnitzler (Unexposed control, sick), 2011 |
Belgium 1994 - 2007 |
Pregnant women who delivered at the University Hospital in Leuven. | Pregnant IBD patients treated with ADA within 3 months prior to conception and/or during pregnancy. (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed, sick
Pregnancies after diagnosis of IBC but prior to start ADA treatment. |
7 / 78 | Main analysis: pregnancies with IFX (n=35) or ADA (n =7), but for malformations, raw data provided for each substance and used for this meta-analysis. |
Seirafi, 2014 |
France and Belgium 2009 - 2010 |
Pregnant IBD patients | Pregnant IBD patients under Adalimumab within 3 months prior to conception and/or during pregnancy. (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed, sick
Pregnant IBD patients not treated with anti-TNF therapy. |
42 / 99 | Design seems to be a retrospective cohort rather than a case–control study as mentioned by authors. Exposures: IFX (n=86), ADA (n=42) or CTZ (n=5). Anti-TNFs were preventively discontinued before GW 30 in 73% of patients having completed their pregnancy. |
Viktil (Controls exposed to other treatments), 2012 |
Norway 2004 - 2007 |
Singleton pregnancies in women receiving at least 1 prescription during the study period. | Women with dispensation of Adalumimab from 3 months prior to pregnancy to delivery. (This is a subgroup of exposure among the whole exposed group considered in the study). |
exposed to other treatment, sick
Women with dispensation of other anti-rheumatic drugs (Prednisolone, NSAIDs, Sulfasalazine, Hydroxychloroquine, Etanercept, Adalimumab, Methotrexate, Leflunomid, or Anakinra) from 3 months prior to pregnancy to delivery. |
3 / 1458 | Analysis performed on anti-rheumatic drugs as a whole, no individual analyse for each substance. Raw data (number of exposed pregnancies and malformations) were available in the text and were used for this meta-analysis. |
Viktil (Controls unexposed, NOS), 2012 |
Norway 2004 - 2007 |
Singleton pregnancies in women receiving at least 1 prescription during the study period. | Women with dispensation of Adalumimab from 3 months prior to pregnancy to delivery. (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed (general population or NOS)
Singleton pregnancies whose mothers did not received an anti-rheumatic drugs in the period 3 months prior to conception until labour. |
3 / 154976 | Analysis performed on anti-rheumatic drugs as a whole, no individual analyse for each substance. Raw data (number of exposed pregnancies and malformations) were available in the text and were used for this meta-analysis. |
Vinet (Unexposed controls, disease free), 2018 |
USA 2011 - 2015 |
The Pregnancies in RA Mothers and matched control group of children born to unaffected mothers. | Children born of rheumatoid arthritis (RA) women with ≥1 filled prescription of Adalimumab during the preconception and/or gestational periods. (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed, disease free
Children born to non-RA mothers without TNFi exposure (i.e., no prescription filled or infusion procedure claim within the preconception and gestational periods). |
108 / 14596 | Primary analysis performed on the group of TNFi, but raw data related to serious infections provided by type of TNFi and used in this meta-analysis. |
Vinet (Unexposed controls, sick), 2018 |
USA 2011 - 2015 |
The Pregnancies in RA Mothers and matched control group of children born to unaffected mothers. | Children born of rheumatoid arthritis (RA) women with ≥1 filled prescription of Adalimumab during the preconception and/or gestational periods. (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed, sick
Children born of rheumatoid arthritis (RA) women without TNFi exposure (i.e., no prescription filled or infusion procedure claim within the gestational period and the 12 weeks preceding it). |
108 / 2476 | Primary analysis performed on the group of TNFi, but raw data related to serious infections provided by type of TNFi and used in this meta-analysis. |
Weber-Schoendorfer, 2015 |
Australia, Finland, France, Italy, The Netherlands, Turkey, Switzerland and the United Kingdom 1998 - 2013 |
Pregnant women who contact a Teratology information services (TIS), directly or via her health care professional. | Pregnant women who had been exposed to more than one dose of ADA at any time during the first 12 weeks after the last menstrual period (LMP). (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed, disease free
Pregnant women identified through spontaneous TIS consultations for other conditions or exposures such as hairdyeing, urinary tract infection, asthma or depression |
172 / 1532 | Analyses were performed for the group of 5 TNF-α inhibitors (172 ADA, 7 CZP, 140 ETA, 3 GOL and 168 IFX). Raw data were provided for major malformations and used for the meta-analysis. |
Study | Country Study period |
Case | Control | Sample size | Rmk |
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47 studies, not fulfilled eligibility criteria, were excluded. See excluded tab for the list of these studies and reason of exclusion.