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Invokana Has New Warning About Risk Of Lower Limb Amputation In Canada

We continue to monitor the drug safety regulators as well as the medical literature concerning the possible link between an increased risk of these amputations and the use of SGLT2 inhibitors such as Invokana, Invokamet, Farxiga, Xigduo XR, and Jardiance.

From the Health Product InfoWatch newsletter — formerly The Canadian Adverse Reaction Newsletter (CARN) — put out by Health Canada in December 2016, under the “Product monograph updates” heading, we get this drug safety development:

Invokana (canagliflozin) and Invokamet (canagliflozin and metformin hydrochloride)

The risk of lower limb amputation, primarily of the toe, has been added to the Adverse Reactions section of the Canadian product monographs for Invokana (canagliflozin) and Invokamet (canagliflozin and metformin hydrochloride).

As background, from this July 2016 Medscape Medical News report, “EMA Extends Amputation Investigation to All SGLT2 Inhibitors” (free registration required to access article):

The European Medicines Agency (EMA)’s Pharmacovigilance Risk Assessment Committee (PRAC) has extended the scope of its investigation into the possible link between the sodium glucose cotransporter 2 (SGLT2) inhibitor canagliflozin (Invokana, Vokanamet, Janssen) and amputations to include other drugs of the same class.

Now, the PRAC’s review will include the other SGLT2 inhibitor medicines dapagliflozin (Farxiga, Xigduo XR, AstraZeneca), and empagliflozin (Jardiance, Boehringer Ingelheim), based on the determination that the potential risk may be relevant for them as well.

And back in mid-May 2016 there was this item, “FDA Drug Safety Communication: Interim clinical trial results find increased risk of leg and foot amputations, mostly affecting the toes, with the diabetes medicine canagliflozin (Invokana, Invokamet); FDA to investigate”.

Since then, we have not heard again from the FDA about the results of this investigation regarding leg, foot, and toe amputations possibly caused by the use of Invokana and Invokamet.

[Read this article in full at original source]

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Invokana / Farxiga / Jardiance

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