ANGUSTA Tablet Ref.[27660] Active ingredients: Misoprostol

Source: Medicines & Healthcare Products Regulatory Agency (GB)  Revision Year: 2020  Publisher: Norgine Pharmaceuticals Limited, Norgine House, Widewater Place, Moorhall Road, Harefield, Uxbridge, UB9 6NS, UK

4.3. Contraindications

Angusta is contraindicated:

  • When there is hypersensitivity to the active substance or to any of the excipients listed in section 6.1.
  • When labour has started.
  • When there is suspicion or evidence of foetal compromise prior to induction (e.g., failed non-stress or stress test, meconium staining or diagnosis or history of non-reassuring foetal status).
  • When oxytocic drugs and/or other labour induction agents are being given (see section 4.2, 4.4, 4.5 and 5.2).
  • When there is suspicion or evidence of uterine scar resulting from previous uterine or cervical surgery, e.g. caesarean delivery.
  • When there is uterine abnormality (e.g. bicornuate uterus) preventing vaginal delivery.
  • When there is placenta praevia or unexplained vaginal bleeding after 24 weeks gestation with this pregnancy.
  • When there is foetal malpresentation, contraindicating vaginal delivery.
  • In patients with kidney failure (GFR <15 ml/min/1.73 m²).

4.4. Special warnings and precautions for use

Angusta should only be administered by trained obstetric personnel in a hospital setting where facilities for continuous fetal and uterine monitoring is available and the cervix should be assessed carefully before product use.

Angusta can cause excessive uterine stimulation.

If uterine contractions are prolonged or excessive, or there is a clinical concern for the mother or baby, additional Angusta tablets should not be administered. If excessive uterine contractions continue, treatment according to local guidelines should be started.

In women with pre-eclampsia, evidence or suspicion of foetal compromise should be ruled out (refer to section 4.3). There are no or limited clinical data with misoprostol in pregnant women with severe pre-eclampsia marked by Haemolytic anaemia; Elevated Liver enzymes; Low Platelet count (HELLP) syndrome, other end organ affliction or CNS findings other than mild headache.

Chorioamnionitis may necessitate fast delivery. Decisions regarding antibiotic treatment, induced labour or caesarean section will be at the physician’s discretion.

There are no or limited clinical data with misoprostol in women whose membranes have been ruptured for more than 48 hours prior to administration of misoprostol.

There may be synergistic/additive effects of misoprostol and oxytocin. Concomitant administration of oxytocin is contraindicated. See section 4.3. Angusta is eliminated after 4 hours. See section 5.2. It is recommended to wait 4 hours after last dose of Angusta before administration of oxytocin (see sections 4.2 and 4.5).

There are no or limited clinical data with misoprostol in multiple pregnancies. There are no or limited clinical data with misoprostol in grand multiparity.

There are no or limited clinical data with misoprostol before week 37 of gestation (see section 4.6).

Angusta should be used only when induction of labour is clinically indicated.

There are no or limited clinical data with misoprostol in pregnant women with bishop score (mBS) >6.

An increased risk of post-partum disseminated intravascular coagulation has been described in patients whose labour has been induced by any physiological or pharmacological method.

A lower dose and/or prolonged dosing intervals should be considered in pregnant women with renal or hepatic impairment (see section 5.2).

4.5. Interaction with other medicinal products and other forms of interaction

No interaction studies have been performed with Angusta.

Concurrent use of oxytocic drugs or other labour induction agents is contraindicated due to the potential of increased uterotonic effects (see sections 4.2, 4.3, 4.4 and 5.2).

4.6. Fertility, pregnancy and lactation

Fertility

Studies of fertility and embryo development in rats have shown that misoprostol may have an impact on implantation and resorption. This is, however, considered of no relevance for the indicated use of Angusta in late pregnancy.

Pregnancy

Angusta has been studied in pregnant women ≥37 weeks of gestation.

Angusta should only be used prior to 37 weeks of gestation if medically indicated (see section 4.4).

Angusta is used for labour induction at a low misoprostol dosage for a short period of time at the very end of pregnancy. When used at that time of pregnancy, there is no risk of foetal malformations. Angusta should not be used at any other time during pregnancy: a threefold increased risk of foetal malformations (including Moebius syndrome, amniotic band syndrome and central nervous system anomalies) has been reported in pregnancies exposed to misoprostol in first trimester.

Breast-feeding

No studies have been performed to investigate the amount of misoprostol acid in colostrum or breast milk following the use of Angusta.

Misoprostol has been detected in human milk following oral administration of misoprostol in tablet form.

Pharmacokinetic trials reveal that oral misoprostol (at dose levels of 600 µg and 200 µg) is excreted into breast milk with drug levels that rise and fall very quickly. The maximum concentration of misoprostol acid in expressed breast milk was achieved within 1 hour after dosing and was 7.6 pg/ml (% CV 37%) and 20.9 pg/ml (% CV 62%) after single 200 mcg and 600 mcg misoprostol administration, respectively. Negligible amounts of misoprostol acid remain in maternal plasma after 5 half-lives (3.75 hours), and even lower concentrations will remain in breast milk. Breast-feeding can start 4 hours after the last dose of Angusta is administered.

4.7. Effects on ability to drive and use machines

Not relevant.

4.8. Undesirable effects

The undesirable effects listed in the table below have been reported in 41 trials where a total of 3,152 women were exposed to oral misoprostol at doses of 20-25 µg every 2 hours or 50 µg every 4 hours. In addition, adverse events reported in a compassionate use program, where approximately 29,000 women have been exposed to Angusta for induction of labour are also listed.

System Organ ClassVery common
(≥1/10)
Common
(≥1/100 to <1/10)
Uncommon
(≥1/1,000 to <1/100)
Not known (cannot be estimated from the available data)1
Nervous system disorders   Dizziness
Convulsion neonatal*
Respiratory, thoracic and mediastinal disorders   Neonatal asphyxia*
Cyanosis neonatal*
Gastrointestinal disordersWith 50 µg, 4-hourly:

Nausea2
Vomiting3
Diarrhoea

With 25 µg, 2-hourly:

Nausea2
Vomiting3
  
Skin and subcutaneous tissue disorders   Rash pruritic
Pregnancy, puerperium and perinatal conditionsMeconium stain

With 25 µg, 2-hourly:

Postpartum haemorrhage5
Uterine hyperstimulation4
With 50 µg, 4-hourly:

Postpartum haemorrhage5
 Foetal acidosis*
Premature separation of placenta
Uterine rupture
General disorders and administration site conditions Chills
Pyrexia
  
Investigations With 50 µg, 4-hourly:

Apgar score low*6
Foetal heart rate abnormal*7
With 25 µg, 2-hourly:

Apgar score low*6
Foetal heart rate abnormal*7
 

* Neonatal adverse reaction
1 ADRs which were reported from the compassionate use programme including birth hospitals in Denmark, Norway and Finland, where approximately 29,000 women have been exposed to Angusta for induction of labour.
2 Nausea was common with 25 µg every 2 hours and very common with 50 µg every 4 hours.
3 Vomiting was common with 25 µg every 2 hours and very common with 50 µg every 4 hours.
4 Uterine hyperstimulation was reported both with and without foetal heart rate changes.
5 Postpartum haemorrhage was very common with 25 µg every 2 hours and common with 50 µg every 4 hours.
6 Apgar score low was uncommon with 25 µg every 2 hours and common with 50 µg every 4 hours.
7 Foetal heart rate abnormal was reported in connection with uterine hyperstimulation.

Uterine hyperstimulation with foetal heart rate changes was uncommon with 25 µg every 2 hours and common with 50 µg every 4 hours.

Reporting of suspected adverse reactions

Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the Yellow Card Scheme Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple Store.

6.2. Incompatibilities

Not applicable.

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