Clopidogrel adverse reactions: Difference between revisions

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#REDIRECT [[Clopidogrel#Adverse Reactions]]
{{Clopidogrel}}
{{CMG}}; {{AE}} {{JH}}
 
==Adverse Reactions==
 
The following serious adverse reactions are discussed below and elsewhere in the labeling:
Bleeding [see Warnings and Precautions (5.2)]
Thrombotic thrombocytopenic purpura [see Warnings and Precautions (5.5)]
 
====6.1 Clinical Studies Experience====
 
Because clinical trials are conducted under widely varying conditions and durations of follow up, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
 
Plavix has been evaluated for safety in more than 54,000 patients, including over 21,000 patients treated for 1 year or more. The clinically important adverse reactions observed in trials comparing Plavix plus [[aspirin]] to placebo plus aspirin and trials comparing Plavix alone to [[aspirin]] alone are discussed below.
 
======Bleeding======
 
'''CURE'''
 
In CURE, Plavix use with aspirin was associated with an increase in major bleeding (primarily gastrointestinal and at puncture sites) compared to placebo with aspirin (see Table 1). The incidence of [[intracranial hemorrhage]] (0.1%) and fatal bleeding (0.2%) were the same in both groups. Other bleeding events that were reported more frequently in the clopidogrel group were [[epistaxis]], [[hematuria]], and [[bruise]].
 
The overall incidence of bleeding is described in Table 1.
 
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Ninety-two percent (92%) of the patients in the CURE study received heparin or [[low molecular weight heparin]] ([[LMWH]]), and the rate of bleeding in these patients was similar to the overall results.
 
'''COMMIT'''
 
In COMMIT, similar rates of major bleeding were observed in the Plavix and placebo groups, both of which also received aspirin (see Table 2).
 
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'''CAPRIE (Plavix vs. Aspirin)'''
 
In CAPRIE, gastrointestinal hemorrhage occurred at a rate of 2.0% in those taking Plavix vs. 2.7% in those taking aspirin; bleeding requiring hospitalization occurred in 0.7% and 1.1%, respectively. The incidence of intracranial hemorrhage was 0.4% for Plavix compared to 0.5% for aspirin.
Other bleeding events that were reported more frequently in the Plavix group were [[epistaxis]] and [[hematoma]].
 
======Other Adverse Events======
 
In CURE and CHARISMA, which compared Plavix plus aspirin to aspirin alone, there was no difference in the rate of adverse events (other than bleeding) between Plavix and placebo.
In CAPRIE, which compared Plavix to aspirin, [[pruritus]] was more frequently reported in those taking Plavix. No other difference in the rate of adverse events (other than bleeding) was reported.
 
====6.2 Postmarketing Experience====
 
The following adverse reactions have been identified during post-approval use of Plavix. Because these reactions are reported voluntarily from a population of an unknown size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
 
<u>'''Blood and lymphatic system disorders'''</u>: [[Agranulocytosis]], [[aplastic anemia]]/[[pancytopenia]], [[thrombotic thrombocytopenic purpura]] ([[TTP]]), acquired [[hemophilia A]]
 
<u>'''Eye disorders'''</u>: Eye (conjunctival, ocular, retinal) bleeding
 
<u>'''Gastrointestinal disorders'''</u>: Gastrointestinal and retroperitoneal hemorrhage with fatal outcome, [[colitis]] (including ulcerative or [[lymphocytic colitis]]), [[pancreatitis]], [[stomatitis]], gastric/duodenal ulcer, [[diarrhea]]
 
<u>'''General disorders and administration site condition'''</u>: [[Fever]], hemorrhage of operative wound
 
<u>'''Hepato-biliary disorders'''</u>: [[Acute liver failure]], [[hepatitis]] (non-infectious), [[abnormal liver function test]]
 
<u>'''Immune system disorders'''</u>: [[Hypersensitivity reactions]], [[anaphylactoid reactions]], [[serum sickness]]
 
<u>'''Musculoskeletal, connective tissue and bone disorders'''</u>: Musculoskeletal bleeding, [[myalgia]], [[arthralgia]], [[arthritis]]
 
<u>'''Nervous system disorders'''</u>: [[Taste disorders]], fatal intracranial bleeding, [[headache]]
 
<u>'''Psychiatric disorders'''</u>: [[Confusion]], [[hallucinations]]
 
<u>'''Respiratory, thoracic and mediastinal disorders'''</u>: [[Bronchospasm]], interstitial pneumonitis, respiratory tract bleeding, eosinophilic pneumonia
 
<u>'''Renal and urinary disorders'''</u>: Increased creatinine levels
 
<u>'''Skin and subcutaneous tissue disorders'''</u>: Maculopapular, erythematous or exfoliative [[rash]], [[urticaria]], bullous dermatitis, eczema, toxic epidermal necrolysis, [[Stevens-Johnson syndrome]], [[angioedema]], drug-induced hypersensitivity syndrome, drug rash with eosinophilia and systemic symptoms (DRESS), [[erythema multiforme]], skin bleeding, [[lichen planus]], generalized pruritus
 
<u>'''Vascular disorders'''</u>: Vasculitis, hypotension<ref name="dailymed.nlm.nih.gov">{{Cite web  | last =  | first =  | title = PLAVIX (CLOPIDOGREL BISULFATE) TABLET, FILM COATED [BRISTOL-MYERS SQUIBB/SANOFI PHARMACEUTICALS PARTNERSHIP] | url = http://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=01b14603-8f29-4fa3-8d7e-9d523f802e0b | publisher =  | date =  | accessdate = }}</ref>
 
==References==
{{Reflist}}
 
{{FDA}}
 
[[Category:Cardiovascular Drugs]]
[[Category:Drugs]]

Latest revision as of 02:22, 22 July 2014