Tigecare Adverse Reactions

The following serious adverse reactions are described elsewhere in the labelling: All-Cause Mortality [see Precautions].
Mortality Imbalance and Lower Cure Rates in Hospital-Acquired Pneumonia [see Precautions].
Anaphylaxis [see Precautions].
Hepatic Adverse Effects [see Precautions].
Pancreatitis [see Precautions].
Clinical Trials Experience: Because clinical trials are conducted under widely varying conditions, 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.
In clinical trials, 2,514 patients were treated with tigecycline. Tigecycline was discontinued due to adverse reactions in 7% of patients compared to 6% for all comparators. Table shows the incidence of adverse reactions through test of cure reported in ≥2% of patients in these trials.
*The difference between the percentage of patients who died in tigecycline and comparator treatment groups.
The 95% CI for each infection type was calculated using the normal approximation method without continuity correction.
**Overall adjusted (random effects model by trial weight) risk difference estimate and 95% CI.
a. These are subgroups of the HAP population.
Note: The studies include 300, 305, 900 (cSSSI), 301, 306, 315, 316, 400 (cIAI), 308 and 313 (CAP), 311 (HAP), 307 [Resistant gram-positive pathogen study in patients with MRSA or Vancomycin-Resistant Enterococcus (VRE)], and 319 (DFI with and without osteomyelitis).
An analysis of mortality in all trials conducted for approved indications - cSSSI, cIAI, and CABP, including post-market trials (one in cSSSI and two in cIAI)-showed an adjusted mortality rate of 2.5% (66/2,640) for tigecycline and 1.8% (48/2,628) for comparator, respectively. The adjusted risk difference for mortality stratified by trial weight was 0.6% (95% CI 0.0, 1.2).
In comparative clinical studies, infection-related serious adverse reactions were more frequently reported for subjects treated with tigecycline (7%) versus comparators (6%). Serious adverse reactions of sepsis/septic shock were more frequently reported for subjects treated with tigecycline (2%) versus comparators (1%). Due to baseline differences between treatment groups in this subset of patients, the relationship of this outcome to treatment cannot be established [see Precautions].
The most common adverse reactions were nausea and vomiting which generally occurred during the first 1 to 2 days of therapy. The majority of cases of nausea and vomiting associated with tigecycline and comparators were either mild or moderate in severity. In patients treated with tigecycline, nausea incidence was 26% (17% mild, 8% moderate, 1% severe) and vomiting incidence was 18% (11% mild, 6% moderate, 1% severe).
In patients treated for complicated skin and skin structure infections (cSSSI), nausea incidence was 35% for tigecycline and 9% for vancomycin/aztreonam; vomiting incidence was 20% for tigecycline and 4% for vancomycin/aztreonam. In patients treated for complicated intra-abdominal infections (cIAI), nausea incidence was 25% for tigecycline and 21% for imipenem/cilastatin; vomiting incidence was 20% for tigecycline and 15% for imipenem/cilastatin. In patients treated for community-acquired bacterial pneumonia (CABP), nausea incidence was 24% for tigecycline and 8% for levofloxacin; vomiting incidence was 16% for tigecycline and 6% for levofloxacin.
Discontinuation from tigecycline was most frequently associated with nausea (1%) and vomiting (1%). For comparators, discontinuation was most frequently associated with nausea (<1%).
The following adverse reactions were reported (<2%) in patients receiving tigecycline in clinical studies: Body as a Whole: injection site inflammation, injection site pain, injection site reaction, septic shock, allergic reaction, chills, injection site edema, injection site phlebitis.
Cardiovascular System: thrombophlebitis.
Digestive System: anorexia, jaundice, abnormal stools.
Metabolic/Nutritional System: increased creatinine, hypocalcemia, hypoglycemia.
Special Senses: taste perversion.
Hemic and Lymphatic System: prolonged activated partial thromboplastin time (aPTT), prolonged prothrombin time (PT), eosinophilia, increased international normalized ratio (INR), thrombocytopenia.
Skin and Appendages: pruritus.
Urogenital System: vaginal moniliasis, vaginitis, leukorrhea.
Post-Marketing Experience: The following adverse reactions have been identified during post-approval use of tigecycline. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish causal relationship to drug exposure: anaphylactic reactions; acute pancreatitis; hepatic cholestasis, and jaundice; severe skin reactions, including Stevens-Johnson Syndrome; symptomatic hypoglycemia in patients with and without diabetes mellitus.