MHRA/CHM ADVICE (UPDATED APRIL 2016): RISK OF DIABETIC
KETOACIDOSIS WITH SODIUM-GLUCOSE CO-TRANSPORTER 2
(SGLT2) INHIBITORS
A review by the European Medicines Agency has
concluded that serious, life-threatening, and fatal cases
of diabetic ketoacidosis (DKA) have been reported rarely
in patients taking an SGLT2 inhibitor. In several cases,
the presentation of DKA was atypical with patients
having only moderately elevated blood glucose levels,
and some of them occurred during off-label use.
To minimise the risk of such effects when treating
patients with a SGLT2 inhibitor, the European Medicines
Agency has issued the following advice:
. inform patients of the signs and symptoms of DKA,
(including rapid weight loss, nausea or vomiting,
abdominal pain, fast and deep breathing, sleepiness, a
sweet smell to the breath, a sweet or metallic taste in
the mouth, or a different odour to urine or sweat), and
advise them to seek immediate medical advice if they
develop any of these
. test for raised ketones in patients with signs and
symptoms of DKA, even if plasma glucose levels are
near-normal
. use ertugliflozin with caution in patients with risk
factors for DKA, (including a low beta cell reserve,
conditions leading to restricted food intake or severe
dehydration, sudden reduction in insulin, increased
insulin requirements due to acute illness, surgery or
alcohol abuse), and discuss these risk factors with
patients
. discontinue treatment if DKA is suspected or
diagnosed
. do not restart treatment with any SGLT2 inhibitor in
patients who experienced DKA during use, unless
another cause for DKA was identified and resolved
. interrupt SGLT2 inhibitor treatment in patients who
are hospitalised for major surgery or acute serious
illnesses; treatment may be restarted once the
patient’s condition has stabilised
MHRA/CHM ADVICE: SGLT2 INHIBITORS: MONITOR KETONES IN
BLOOD DURING TREATMENT INTERRUPTION FOR SURGICAL
PROCEDURES OR ACUTE SERIOUS MEDICAL ILLNESS (MARCH
2020)
New recommendations have been issued following a
European review of peri-operative diabetic ketoacidosis
in patients taking SGLT2 inhibitors. Healthcare
professionals are advised to monitor ketone levels
during SGLT2 inhibitor treatment interruption in
patients who have been hospitalised for major surgery or
acute serious illness—measurement of blood ketone
levels is preferred to urine. Treatment may be restarted
once ketone levels are normal and the patient’s
condition has stabilised.
MHRA/CHM ADVICE: SGLT2 INHIBITORS: REPORTS OF FOURNIER’S
GANGRENE (NECROTISING FASCIITIS OF THE GENITALIA OR
PERINEUM) (FEBRUARY 2019)
Fournier’s gangrene, a rare but serious and potentially
life-threatening infection, has been associated with the
use of sodium-glucose co-transporter 2 (SGLT2)
inhibitors. If Fournier’s gangrene is suspected, stop the
SGLT2 inhibitor and urgently start treatment (including
antibiotics and surgical debridement).
Patients should be advised to seek urgent medical
attention if they experience severe pain, tenderness,
erythema, or swelling in the genital or perineal area,
accompanied by fever or malaise—urogenital infection
or perineal abscess may precede necrotising fasciitis.
PDF pages 768, 769
▶Common or very common Hypoglycaemia (in combination
with insulin or sulfonylurea). hypovolaemia. increased
risk of infection. polydipsia. thirst. urinary disorders.
vulvovaginal pruritus
▶Rare or very rare Diabetic ketoacidosis (discontinue
immediately)
▶Frequency not known Fournier’s gangrene (discontinue
and initiate treatment promptly). lower limb amputations
. phimosis
SIDE-EFFECTS, FURTHER INFORMATION Consider
interrupting treatment if volume depletion occurs.
▶Common or very common Abdominal pain. diarrhoea.
hypoglycaemia. nausea
▶Uncommon Hepatic disorders. vomiting
▶Rare or very rare Agranulocytosis. erythropenia.
granulocytopenia. haemolytic anaemia. leucopenia.
pancytopenia. thrombocytopenia
▶Frequency not known Allergic dermatitis (usually in the
first 6–8 weeks of therapy). constipation. photosensitivity
reaction. skin reactions. visual impairment
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Manufacturer advises avoid initiation
if eGFR less than 60 mL/minute/1.73 m2. Manufacturer
advises frequent monitoring of renal function required if
eGFR less than 60 mL/minute/1.73 m2. Manufacturer
advises avoid if eGFR is persistently less than
45 mL/minute/1.73 m2.
Sulfonylureas should be used with
care in those with mild to moderate renal impairment,
because of the hazard of hypoglycaemia. Care is required
to use the lowest dose that adequately controls blood
glucose. Avoid where possible in severe renal impairment.
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