Rheumatoid arthritis in pregnancy: successful outcome with anti-TNF agent (Etanercept)

Anti-Inflammatory Therapies for Treatment of Inflammation-Related Preterm Brain Injury

Despite the prevalence of preterm brain injury, there are no established neuroprotective strategies to prevent or alleviate mild-to-moderate inflammation-related brain injury. Perinatal infection and inflammation have been shown to trigger acute neuroinflammation, including proinflammatory cytokine release and gliosis, which are associated with acute and chronic disturbances in brain cell survival and maturation. These findings suggest the hypothesis that the inhibition of peripheral immune responses following infection or nonspecific inflammation may be a therapeutic strategy to reduce the associated brain injury and neurobehavioral deficits. This review provides an overview of the neonatal immunity, neuroinflammation, and mechanisms of inflammation-related brain injury in preterm infants and explores the safety and efficacy of anti-inflammatory agents as potentially neurotherapeutics.

Endometrial preparation with etanercept increased embryo implantation and live birth rates in women suffering from recurrent implantation failure during IVF

Recurrent implantation failure (RIF),  defined as ≥3 failed in vitro fertilization (IVF) cycles with the accumulated transfer of at least five embryos, plague many infertile women. The exact cause is unknown; however, evidence supports the immune system, specifically the Tumor Necrosis Factor (TNF) pathway. Etanercept (a TNFα antagonist) has been shown to improve pregnancy rates in women with rheumatoid arthritis or endometriomas; therefore, this study aimed to determine the effectiveness of etanercept for IVF in RIF women. Eighty-three RIF women were recruited from the Ingenes Institute in Mexico City for this single-arm, prospective study. All patients underwent a similar IVF protocol and received etanercept (4 × 25 mg every 72 h) after endometrial preparation, if applicable, and at embryo transfer. IVF endpoints assessed were embryo implantation (h-βCG >10 mg/dL at Day 14), the presence of a gestational sac, live birth, and birth weight. All women reported no side-effects associated with the etanercept treatment. 75.9 % of the cohort achieved embryo implantation, 74.7 % developed gestational sacs, and the ongoing pregnancy/live birth rate was at 62.7 %. However, 56.7 % of the live births were preterm (<37 weeks) and 60.5 % of the births were underweight (<2500 g). When stratified by fresh or frozen cycles or by the ova source (patient versus donor), the results were not significantly different with respect to the implantation rate, formation of gestational sacs, and the live birth rate. Here, we showed that using etanercept during endometrial preparation improves IVF outcomes in RIF women.

Clinical, Ethical, and Socioeconomic Considerations for Prescription Drug Use During Pregnancy in Women Suffering From Chronic Diseases

The increasing proportion of women conceiving later in life, associated with the higher probability of contracting a chronic disease, highlights an increasing need to understand the impact of drug use for chronic diseases pre- and postpartum. In this study, the authors report the results of systematic reviews of drug use during pregnancy by focusing on pregnant women with a chronic disease, specifically, epilepsy, rheumatoid arthritis (RA), or schizophrenia. The authors studied the clinical impact of drug use in these chronic diseases on the mother and fetus, as well as the ethical issues and socioeconomic impact of drug use during pregnancy for women with these conditions. The results indicate that treatment discontinuation in epilepsy and schizophrenia can lead to serious adverse effects, whereas pregnancy can have an ameliorating effect on RA symptoms. Delivery and neonatal complications were associated with the use of older generation drugs across the 3 diseases. Newer generation drugs were deemed safer but more expensive. Ethical considerations for physicians and patients involved mainly the potential risks of drug use for the fetus. In conclusion, treatment guidelines need to be developed in the future; additionally, better insight into the economics of pregnancy for women with chronic diseases will improve value for money in obstetric care.

Use of biologic agents for rheumatic diseases in pregnancy

Biologic agents have ushered a new era in the treatment of inflammatory rheumatic diseases. In recent years, several biologic agents have been approved by food and drug administration and have significantly improved outcomes for patients with immune mediated inflammatory disorders including rheumatic and inflammatory bowel diseases. The most common used biologic therapeutic agents are tumor necrosis factor inhibitors (etanercept, infliximab, adalimumab, certolizumab pegol, and golimumab), an interleukin (IL)-6 inhibitor (tocilizumab), an IL-1 receptor antagonist (anakinra), an anti-CD-20 antibody (rituximab), and a T cell co-stimulation modulator (abatacept). Their use during pregnancy has been controversial because of absence of controlled studies which have enrolled pregnant women. This brief overview provides published data on use of biologic agents for the treatment of rheumatic diseases in pregnancy.

Safety of biologic therapies during pregnancy in women with rheumatic disease

Inflammatory rheumatic diseases frequently affect women of childbearing age. Biologic therapy during pregnancy is an important topic that is yet unresolved. The majority of documented experiences are in case series, case reports, or registries. Tumor necrosis factor (TNF) inhibitors are now better known. Some evidence suggests that it is possible that differences between drugs regarding safety are associated with the structure and capacity to cross the placenta, but we are not aware of any study that supports unequivocally this statement. Most of the monoclonal antibodies are actively transferred to fetal circulation using the neonatal Fc receptor. Although this transfer does not appear to be associated with the risk of miscarriage, stillbirth, or congenital abnormality, the rate of premature births and lower birth weight may be increased. During fetal development, the neonatal period, and childhood, the immune system is constantly maturing. The ability to produce cytokines in response to infectious stimulus remains low for years, but is similar to that of an adult around the age of 3 years owing to the adaptive nature of the newborn’s immune system as a result of exposure to microbes. Therefore, exposure to TNF inhibitors may have serious consequences on the newborn, such as severe infections or allergic reactions. Regarding the former, an anecdotal case report described a fatal case of disseminated bacillus Calmette-Guérin (BCG) infection in an infant born to a mother taking infliximab for Crohn’s disease. Although the baby was born and progressed well initially, he died at 4.5 mo after he was vaccinated with BCG. Fortunately, serious infections do not appear to be frequent in newborns exposed to in utero biologic therapy. However, very limited short-term experiences are available regarding complications in an exposed fetus, and no data are available about long-term implications on the child’s developing immune system. Therefore, we must be aware of potential complications in later years. Although the clinical data to date are promising, no firm conclusions can be drawn about the safety of biologic drugs during pregnancy, and, without further evidence, guidelines that suggest these drugs should be avoided at the time of conception cannot yet be changed.

Safety of Tumor Necrosis Factor Inhibitors during Pregnancy and Breastfeeding

PURPOSE

Tumor necrosis factor (TNF) inhibitors are useful in the treatment of numerous inflammatory and immunologic disorders. Since many of these conditions occur in women of childbearing age, safety during pregnancy and breastfeeding is of considerable importance.

METHODS

This paper is a review of the literature on the safety of TNF inhibitors during pregnancy and breastfeeding published between 2001 and 2011.

CONCLUSIONS

TNF inhibitors do not appear to be associated with a high risk of teratogenicity or intrauterine death. However, a small magnitude increase in risk cannot be ruled out given the paucity of data on the subject. Although TNF inhibitor use may be associated with a higher rate of preterm delivery, this may in fact be due to an active, underlying disease. Therefore, the decision to use these medications should be made on a case-by-case basis. If the disease cannot be managed with first line agents, TNF inhibitors may be helpful in reducing the number of disease exacerbations. Nevertheless, when using TNF inhibitors, it is prudent to discontinue treatment around the third trimester when transfer across the placenta is greatest and to restart postpartum.

Behçet's syndrome in pregnancy

Behçet's syndrome (BS), a systemic inflammatory disease characterized by oral and genital ulceration, eye inflammation and arthritis, usually presents in the third and fourth decades of life, but is rare in pregnancy. BS is not usually associated with a detrimental effect on pregnancy outcome. In most women BS is reported to improve in pregnancy, although it may not always follow a similar course in successive pregnancies and it is not possible to predict the course of BS in a particular pregnancy. Many of the drug therapies used to treat BS are safe to use in pregnancy and in the breastfeeding mother. These include corticosteroids, azathioprine, calcineurin inhibitors and probably colchicine. Experience with use of biologics in pregnancy is increasing. Drugs used in the management of BS that should be avoided in women planning a pregnancy include methotrexate, mycophenolate mofetil, thalidomide, cyclophosphamide and chlorambucil.

A patient with rheumatoid arthritis who had a normal delivery under etanercept treatment

In recent years, biologics have been widely administered for treating rheumatoid arthritis (RA): however, the safety of these drugs has not been adequately established in embryos and fetuses. We report the case of a pregnant RA patient treated with etanercept, an anti-tumor necrosis factor (TNF) agent. She continued to receive etanercept treatment after becoming pregnant without any complications, finally giving successful birth to a baby girl at 39 weeks. This suggests that etanercept may be selected to treat RA patients with active arthritis who desire pregnancy with lower risks.

Rheumatoid arthritis: a female challenge

Rheumatoid arthritis (RA) is two- to three-fold more frequent in women than in men and a strong association with sex hormones has been demonstrated. There is strong evidence that autoimmunity is under genetic control, and genes in sexual chromosomes can play a role in supporting the female prevalence. On the other hand, it is widely accepted that sex hormones--estrogens in particular--may regulate the immune response by favoring the survival of forbidden autoreactive clones and ultimately the prevalence of autoimmunity in women. Accordingly, estrogens have been suggested to be associated with the development of RA. Pregnancy in RA women is a common situation and most pregnant patients experience a remission. This has been closely related to a switch from Th1 to Th2 immune responses and to a decreased production of proinflammatory cytokines, at least in part supported by the changes of the hormonal profile in pregnancy. Pregnancy planning is required in RA in order to avoid unwanted complications. In particular, the need to control the disease requires safe use of antirheumatic drugs both during the pregnancy itself and in the breastfeeding period. Hormonal treatment for contraception is contraindicated in the case of positivity for antiphospholipid antibodies owing to the increased thrombophilic risk. Similarly, replacement hormonal treatment in postmenopausal women with RA to control osteoporosis is no longer recommended as a result of its ability to increase the cardiovascular risk closely associated with RA itself.

Exposition to anti-TNF drugs during pregnancy: outcome of 15 cases and review of the literature

OBJECTIVE

To report on the outcome of 15 cases of pregnancies in women treated with anti-TNF drugs during conception or pregnancy

METHODS

French rheumatologists connecting to the web-site of CRI site: http://www.cri-net.com were asked to fill in a structured questionnaire reporting the outcome of pregnancy in women still treated by a TNF blocker at the time of conception.

RESULTS

Spondylarthropathies (n=8), rheumatoid arthritis (n=4), juvenile idiopathic arthritis (n=2), and psoriatic arthritis (n=1) were treated by infliximab (n=3), adalimumab (n=2), or etanercept (n=10). Miscarriages occurred twice, and elective termination was preferred once. Anti-TNF had been administered during the first, second and third trimester of pregnancy in 12, three and two cases. The 12 babies were in good condition, without apparent malformation or symptoms of neonatal illnesses.

CONCLUSION

The number of reported cases exceeds 300, but only 29 women were treated during their whole pregnancy. The rate of congenital malformations observed so far might appear reassuring compared to the general population for women exposed only during conception. Conversely, there are too few reports of exposure during pregnancy to allow any conclusion about the safety of TNF blockers, and additional long term follow-up of children would be welcome in order to rule out minor forms of VACTERL association that might have been overlooked at birth.