An Efficacy and Safety Study of Itraconazole Sequential Therapy (Intravenous Injection Followed by Oral Solution) in Invasive Pulmonary Fungal Infections

Clinical Efficacy and Safety of Itraconazole Injection/Oral Solution Sequential Therapy for Treatment of Invasive Pulmonary Fungal Infections

The purpose of this study is to evaluate the efficacy and safety of itraconazole sequential therapy (intravenous injection/oral solution) in participants with invasive pulmonary fungal infections ([IPFI]; lung diseases caused by fungal infection).

This is an open-label (all people know the identity of the intervention), single arm, multicenter (when more than one hospital or medical school team work on a medical research study) study to evaluate the efficacy and safety of itraconazole sequential therapy in participants with IPFI. The study duration will be 4 to 6 weeks. The treatment will be divided into the intravenous (into a vein) injection period and the oral solution administration (giving) period. During the intravenous injection period 200 milligram (mg) twice daily loading dose (large initial dose) will be given for first 2 days, 200 mg once daily for the subsequent 12 days. Then sequential itraconazole oral solution 200 mg twice daily will be given as maintenance therapy (treatment designed to help the original primary treatment to succeed) for 2-4 weeks. Participant's clinical, mycological and comprehensive efficacy will be assessed at Week 6. Participants' safety will be monitored throughout the study.

Inclusion Criteria:

• Probable or proven invasive pulmonary infectious participants (IPFI) - Hospitalized participants (at least hospitalized treatment and observation could be ensured during the intravenous injection period) - The participants (or legal representatives) have signed the informed consent forms.

Exclusion Criteria:

• Currently taking taboo drugs, such as terfenadine, astemizole, cisapride and HMG CoA reductase inhibitors (for example simvastatin, lovastatin, oral or intravenous midazolam or triazolam) - History of allergy or intolerance to imidazoles or pyrrole drugs (for example fluconazole, itraconazole, ketoconazole, miconazole, clotrimazole) - Pregnant and breast feeding women, or women of child bearing age not taking effective contraception measures - Participants with pure oral, urinary tract, and vaginal candidiasis (yeast infection) - Participants with fungal meningitis (inflammation of the meninges), active liver disease, renal insufficiency with the serum creatinine clearance rate less than 30 milliliter per minute (ml/min), and current abnormal cardiac function such as congestive heart failure (condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body), or participants with history of congestive heart failure