Efficacy and Safety Study of Abnoba Viscum F 20mg in Malignant Pleural Effusion Patients

Inclusion Criteria: * Subject who need the pleurodesis among subjects diagnosed with a mlignant pleural effusion * Full lung expansion must be achieved within 12 to 24 hours after drainage * Expected survival time of at least 2 months * Subject who score 50 or more on the Karnofsky Performance Scale Exclusion Criteria: * Subjects with previous attempts at pleurodesis with sclerosing agent * Subjects with trapped lung or bronchial obstruction * Subjects with adverse drug response to mistletoe agents * Subjects who have participated in another clinical study other than the present study * Subjects who is taking immune-suppressive agents * Subjects with medical and psychiatric contraindications for the study drug * Subjects who are not allowed to participate in the study by legal requirement * Subjects who are not allowed to participate in the study by the Investigator's discretion