8.1Pregnancy Risk Summary
There are insufficient data on the use of TRELEGY ELLIPTA or its individual components, fluticasone furoate, umeclidinium, and vilanterol, in pregnant women to inform a drug‑associated risk. (See Clinical Considerations.) In an animal reproduction study, fluticasone furoate and vilanterol administered by inhalation alone or in combination to pregnant rats during the period of organogenesis produced no fetal structural abnormalities.
The highest fluticasone furoate and vilanterol doses in this study were approximately 4.5 and 40 times the maximum recommended human daily inhalation doses (MRHDID) of 200 and 25 mcg, respectively in adults. (See Data.) Umeclidinium administered via inhalation or subcutaneously to pregnant rats and rabbits was not associated with adverse effect on embryofetal development at exposures approximately 40 and 150 times, respectively, the human exposure at the MRHDID of 62.5 mcg.
(See Data.) The estimated risk of major birth defects and miscarriage for the indicated populations is unknown. In the U.S. general population, the estimated risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Clinical Considerations Disease-Associated Maternal and/or Embryofetal Risk: In women with poorly or moderately controlled asthma, there is an increased risk of several perinatal outcomes such as pre-eclampsia in the mother and prematurity, low birth weight, and small for gestational age in the neonate.
Pregnant women should be closely monitored and medication adjusted as necessary to maintain optimal control of asthma. Labor or Delivery: TRELEGY ELLIPTA should be used during late gestation and labor only if the potential benefit justifies the potential for risks related to beta-agonists interfering with uterine contractility. Data Animal Data: The combination of fluticasone furoate, umeclidinium, and vilanterol has not been studied in pregnant animals.
Studies in pregnant animals have been conducted with fluticasone furoate and vilanterol in combination and individually with fluticasone furoate, umeclidinium, or vilanterol. Fluticasone Furoate and Vilanterol: In an embryofetal developmental study, pregnant rats received fluticasone furoate and vilanterol during the period of organogenesis at doses up to approximately 4.5 and 40 times the MRHDID of 200 and 25 mcg, respectively, alone or in combination (on a mcg/m 2 basis at inhalation doses up to approximately 95 mcg/kg/day).
No evidence of structural abnormalities was observed. Fluticasone Furoate: In 2 separate embryofetal developmental studies, pregnant rats and rabbits received fluticasone furoate during the period of organogenesis at doses up to approximately 4.5 times and equal to, respectively, the MRHDID of 200 mcg (on a mcg/m 2 basis at maternal inhalation doses up to 91 and 8 mcg/kg/day, respectively). No evidence of structural abnormalities in fetuses was observed in either species.
In a perinatal and postnatal developmental study in rats, dams received fluticasone furoate during late gestation and lactation periods at doses up to approximately 1.5 times the MRHDID of 200 mcg (on a mcg/m 2 basis at maternal inhalation doses up to 27 mcg/kg/day). No evidence of effects on offspring development was observed. Umeclidinium: In 2 separate embryofetal developmental studies, pregnant rats and rabbits received umeclidinium during the period of organogenesis at doses up to approximately 40 and 150 times, respectively the MRHDID of 62.5 mcg (on an AUC basis at maternal inhalation doses up to 278 mcg/kg/day in rats and at maternal subcutaneous doses up to 180 mcg/kg/day in rabbits).
No evidence of teratogenic effects was observed in either species. In a perinatal and postnatal developmental study in rats, dams received umeclidinium during late gestation and lactation periods at doses up to approximately 20 times the MRHDID (on an AUC basis at maternal subcutaneous doses up to 60 mcg/kg/day). No evidence of effects on offspring development was observed. Vilanterol: In 2 separate embryofetal developmental studies, pregnant rats and rabbits received vilanterol during the period of organogenesis at doses up to approximately 13,000 and 760 times, respectively, the MRHDID (on a mcg/m 2 basis at maternal inhalation doses up to 33,700 mcg/kg/day in rats and on an AUC basis at maternal inhaled doses up to 5,740 mcg/kg/day in rabbits).
No evidence of structural abnormalities was observed at any dose in rats or in rabbits up to approximately 120 times the MRHDID (on an AUC basis at maternal doses up to 591 mcg/kg/day). However, fetal skeletal variations were observed in rabbits at approximately 760 or 840 times the MRHDID (on an AUC basis at maternal inhaled or subcutaneous doses of 5,740 or 300 mcg/kg/day, respectively). The skeletal variations included decreased or absent ossification in cervical vertebral centrum and metacarpals.
In a perinatal and postnatal developmental study in rats, dams received vilanterol during late gestation and the lactation periods at doses up to approximately 3,900 times the MRHDID (on a mcg/m 2 basis at maternal oral doses up to 10,000 mcg/kg/day). No evidence of effects in offspring development was observed.
