Effectiveness of Nedocromil Sodium versus Placebo as Additions to Routine Asthma Maintenance Therapy: a Multicentre, Double-Blind, Group Comparative Trial

A total of 117 subjects took part in a double-blind, placebo-controlled trial of nedocromil sodium (4 × 4 mg daily by inhalation) in the management of patients with moderately severe bronchial asthma.