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Drugs and Lactation Database (LactMed®) [Internet]. Bethesda (MD): National Institute of Child Health and Human Development; 2006-.
CASRN: 331731-18-1
Drug Levels and Effects
Summary of Use during Lactation
Limited information indicates that maternal adalimumab injections produce low levels in breastmilk. Because adalimumab is a large protein molecule, it is likely to be partially destroyed in the infant's gastrointestinal tract and absorption by the infant is probably minimal.[1] Adalimumab was undetectable in the serum of some breastfed infants and some information indicates that adalimumab does not adversely affect the nursing infant. In mothers who received adalimumab during pregnancy, continued use while breastfeeding does not prolong adalimumab elimination by the infant.[2] Most experts and professional guidelines consider adalimumab to be acceptable to use during breastfeeding.[3-13] Waiting for at least 2 weeks postpartum to resume therapy may minimize transfer to the infant.[14]
Drug Levels
Maternal Levels. One woman received a single 40 mg of adalimumab subcutaneously at 4 weeks postpartum. Milk samples were obtained every 2 days for 8 days. A peak milk adalimumab level of 31 mcg/L was detected on day 6 after injection. Milk levels on days 5 and 8 were about 10 mcg/L.[15]
Two women received adalimumab 40 mg subcutaneously for treatment of inflammatory bowel disease at unstated intervals. The first woman received the drug during pregnancy and postpartum. At 21 weeks postpartum and 7 days after the previous dose, her breastmilk adalimumab was 4.83 mcg/L while her serum level was 6.7 mg/L. In the second woman, the milk adalimumab concentration at 8 weeks postpartum and 9 days after the last dose was 4.88 mcg/L with a simultaneous serum concentration of 5.5 mg/L.[16]
In a multi-center study of women with inflammatory bowel disease in pregnancy (the PIANO registry), 21 women receiving adalimumab provided milk samples at 1, 12, 24, and 48 hours after drug administration. Some also provided samples at 72, 96, 120, and 168 hours after drug administration. Two of the women had detectable (>0.01 mg/L) adalimumab levels in milk. Peak concentrations in breastmilk were 0.45 and 0.71 mg/L and occurred at 12 to 24 hours after the dose. Seven women had undetectable milk adalimumab levels over a week of monitoring.[17]
Infant Levels. A woman received adalimumab 40 mg subcutaneously at unstated intervals while breastfeeding (extent not stated). At 8 weeks postpartum and 9 days after the prior dose, the infant had an undetectable (<0.65 mcg/L) adalimumab serum concentration.[16]
A pregnant woman received adalimumab 40 mg every 2 weeks for Crohn's disease until week 16 of pregnancy. Her infant was exclusively breastfed until 4 months of age and the drug was reinstituted on day 24 postpartum. At 3 months of age, adalimumab was undetectable in the infant's serum.[18]
Effects in Breastfed Infants
One woman with Crohn's disease received adalimumab 40 mg subcutaneously every week during pregnancy and breastfeeding (extent not stated). Her infant demonstrated normal growth and development at 6 months of age.[19] The authors reported a brief follow-up stating that the woman also breastfed her second infant during adalimumab therapy with no adverse consequences.[20]
Another woman with Crohn's disease received adalimumab 40 mg subcutaneously every 2 weeks during pregnancy and breastfeeding (extent not stated). Her infant demonstrated normal growth and development at 6 months of age.[21]
Two women nursed their infants (extent not stated) while receiving adalimumab 40 mg subcutaneously at unstated intervals for inflammatory bowel disease. They breastfed for at least 21 weeks and 8 weeks, respectively, but the total duration was not stated. At 14.5 and 15 months of age, respectively, neither infant had any signs of adverse drug reactions, allergic reactions or severe infections leading to hospitalization. Developmental milestones were reached on time by both infants.[16]
A pregnant woman received adalimumab 40 mg every 2 weeks for Crohn's disease until week 16 of pregnancy. Her infant was exclusively breastfed until 4 months of age and the drug was reinstituted on day 24 postpartum. At 7 months of age, the infant was healthy with normal growth and development. The infant had no infections requiring antibiotics or hospitalization.[18]
A case-control study of women with chronic arthritic conditions found 2 women who received adalimumab during pregnancy and lactation (extent not stated). No differences were observed in the 2 infants' growth parameters, developmental milestones, vaccinations and diseases in the first year of life compared to those not exposed to the drugs with lactation.[22]
A woman receiving adalimumab for severe psoriasis breastfed 2 infants following 2 pregnancies. No adverse effects were reported in the infant, although the dosage of adalimumab and the extent of breastfeeding were not reported.[23]
In a multi-center study of women with inflammatory bowel disease in pregnancy (the PIANO registry), 99 women received adalimumab while breastfeeding their infants. Among those who received adalimumab or another biologic agent while breastfeeding, infant growth, development or infection rate was no different from infants whose mothers received no treatment. An additional 68 women received a biologic agent plus a thiopurine. Infant outcomes were similar in this group.[17]
A national prospective registry of patients with rheumatic diseases who were treated with biological DMARDs was conducted in Spain. One whose mother was taking adalimumab was breastfed (extent not stated) with no mild or severe adverse events reported in the infant.[24]
A multicenter, retrospective observational study in France reported the outcomes of infants who were breastfed by mothers taking a TNF inhibitor during pregnancy or postpartum for inflammatory bowel disease. Of 153 women who continued anti-TNF therapy postpartum, 55 were taking adalimumab. The exact number of the infants breastfed during maternal adalimumab therapy was not stated. Of the 153 cases, 68 breastfed their infants for a mean duration of 61 days (range 31 to 111 days). Thirty of the breastfed infants were born to mothers who had received an ant-TNF agent after 26 weeks of pregnancy and were likely born with blood levels of the agent. None of the breastfed infants had any infectious complications.[25]
Effects on Lactation and Breastmilk
Relevant published information was not found as of the revision date.
Alternate Drugs to Consider
(Inflammatory Bowel Disease) Certolizumab Pegol, Infliximab; (Psoriasis) Etanercept; Infliximab, Phototherapy, Tretinoin; (Rheumatoid Arthritis) Certolizumab Pegol, Etanercept, Infliximab
References
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- Anderson PO. Monoclonal antibodies during breastfeeding. Breastfeed Med 2021;16:591-3 [PubMed: 33956488]
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- Julsgaard M, Christensen LA, Gibson PR, et al. Concentrations of adalimumab and infliximab in mothers and newborns, and effects on infection. Gastroenterology 2016;151:110-9 [PubMed: 27063728]
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- Nguyen GC, Seow CH, Maxwell C, et al. The Toronto Consensus Statements for the Management of IBD in Pregnancy. Gastroenterology 2016;150:734-57.e1 [PubMed: 26688268]
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- van der Woude CJ, Kolacek S, Dotan I, et al. European evidenced-based consensus on reproduction in inflammatory bowel disease. J Crohns Colitis 2010;4:493-510 [PubMed: 21122553]
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- Flint J, Panchal S, Hurrell A, et al. BSR and BHPR guideline on prescribing drugs in pregnancy and breastfeeding-Part I: Standard and biologic disease modifying anti-rheumatic drugs and corticosteroids. Rheumatology (Oxford) 2016;55:1693-7 [PubMed: 26750124]
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- Götestam Skorpen C, Hoeltzenbein M, Tincani A, et al. The EULAR points to consider for use of antirheumatic drugs before pregnancy, and during pregnancy and lactation. Ann Rheum Dis 2016;75:795-810 [PubMed: 26888948]
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- Amin M, No DJ, Egeberg A, et al. Choosing first-line biologic treatment for moderate-to-severe psoriasis: What does the evidence say? Am J Clin Dermatol 2018;19:1-13 [PubMed: 29080066]
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- Mahadevan U, Robinson C, Bernasko N, et al. Inflammatory bowel disease in pregnancy clinical care pathway: A report from the American Gastroenterological Association IBD Parenthood Project Working Group. Gastroenterology 2019;156:1508-24 [PubMed: 30658060]
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- Picardo S, Seow CH. A pharmacological approach to managing inflammatory bowel disease during conception, pregnancy and breastfeeding: Biologic and oral small molecule therapy. Drugs 2019;79:1053-63 [PubMed: 31183768]
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- Sammaritano LR, Bermas BL, Chakravarty EE, et al. 2020 American College of Rheumatology Guideline for the Management of Reproductive Health in Rheumatic and Musculoskeletal Diseases. Arthritis Rheumatol 2020;72:529-56 [PubMed: 32090480]
- 11.
- Smith CH, Yiu ZZN, Bale T, et al. British Association of Dermatologists guidelines for biologic therapy for psoriasis 2020: A rapid update. Br J Dermatol 2020;183:628-37 [PubMed: 32189327]
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- Yeung J, Gooderham MJ, Grewal P, et al. Management of plaque psoriasis with biologic therapies in women of child-bearing potential consensus paper. J Cutan Med Surg 2020;24 (1_Suppl):3S-14S [PubMed: 32500730]
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- Russell MD, Dey M, Flint J, et al. British Society for Rheumatology guideline on prescribing drugs in pregnancy and breastfeeding: Immunomodulatory anti-rheumatic drugs and corticosteroids. Rheumatology (Oxford) 2023;62:e48-e88 [PMC free article: PMC10070073] [PubMed: 36318966]
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- Krysko KM, Dobson R, Alroughani R, et al. Family planning considerations in people with multiple sclerosis. Lancet Neurol 2023;22:350-66 [PubMed: 36931808]
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- Ben-Horin S, Yavzori M, Katz L, et al. Adalimumab level in breast milk of a nursing mother. Clin Gastroenterol Hepatol 2010;8:475-6 [PubMed: 20005982]
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- Fritzsche J, Pilch A, Mury D, et al. Infliximab and adalimumab use during breastfeeding. J Clin Gastroenterol 2012;46:718-9 [PubMed: 22858514]
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- Matro R, Martin CF, Wolf D, et al. Exposure concentrations of infants breastfed by women receiving biologic therapies for inflammatory bowel diseases and effects of breastfeeding on infections and development. Gastroenterology 2018;155:696-704 [PubMed: 29857090]
- 18.
- Julsgaard M, Brown S, Gibson P, et al. Adalimumab levels in an infant. J Crohns Colitis 2013;7:597-8 [PubMed: 23102835]
- 19.
- Vesga L, Terdiman JP, Mahadevan U. Adalimumab use in pregnancy. Gut 2005;54:890 [PMC free article: PMC1774554] [PubMed: 15888806]
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- Mahadevan U. Pregnancy, fertility and therapies for IBD. Gastroenterol Hepatol (N Y) 2006;2:234-6 [PMC free article: PMC5335676] [PubMed: 28286451]
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- Mishkin DS, Van Deinse W, Becker JM, et al. Successful use of adalimumab (Humira) for Crohn's disease in pregnancy. Inflamm Bowel Dis 2006;12:827-8 [PubMed: 16917239]
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- Dall'ara F, Reggia R, Bazzani C, et al. Safety of anti-TNF alfa agents during pregancy and breastfeeding: longterm follow up of exposed children in a case-series of mothers with chronic arthritides. Ann Rheum Dis 2016;75 (Suppl 2):493.doi:10.1136/annrheumdis-2016-eular.4123 [CrossRef]
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- Lund T, Thomsen SF. Use of TNF-inhibitors and ustekinumab for psoriasis during pregnancy: A patient series. Dermatol Ther 2017;30:e12454 [PubMed: 28071837]
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- Membrive-Jiménez C, Sánchez-Piedra C, Martínez-González O, et al. Safety and effectiveness of bDMARDs during pregnancy in patients with rheumatic diseases: Real-world data from the BIOBADASER registry. Reumatol Clin (Engl Ed) 2023;19:500-6 [PubMed: 37945183]
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- Bendaoud S, Nahon S, Beaugerie L, et al. Risk of anti-TNF therapy on pregnancy, breastfeeding, live vaccines and related information in patients with inflammatory bowel disease: Real-world data from a nationwide study. Dig Liver Dis 2024.1590-8658 [PubMed: 38981787]
Substance Identification
Substance Name
Adalimumab
CAS Registry Number
331731-18-1
Drug Class
Breast Feeding
Lactation
Milk, Human
Antibodies, Monoclonal, Humanized
Antirheumatic Agents
Dermatologic Agents
Gastrointestinal Agents
Anti-Inflammatory Agents
Tumor Necrosis Factor Inhibitors
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