Vistagen announces results from PH284 study in cancer cachexia

Vistagen (VTGN) announced results from an exploratory Phase 2A study of PH284 in cancer cachexia. PH284 is an investigational pherine nasal spray differentiated from all current treatments for the loss of appetite associated with chronic disorders, such as cancer. In the study, PH284 demonstrated higher mean subjective feeling of hunger as compared to placebo and appeared safe and well-tolerated with an adverse event profile similar to placebo in a population compromised by terminal cancer. The previously unreported double-blind, placebo-controlled exploratory Phase 2A study was designed to evaluate the efficacy, safety, and tolerability of intranasal administration of PH284 in female patients diagnosed with cachexia due to terminal cancer. PH284 nasal spray was administered intranasally, one spray in each nostril, four times daily before meals. From Day 1 through Day 4, all subjects were administered placebo 30 minutes prior to each meal. Beginning on Day 5 through Day 11 subjects were randomized in a 1:1 fashion to receive either PH284 or placebo. Patients measured Subjective Feeling of Hunger ten minutes before each meal. PH284, as compared to placebo, induced a cumulative effect on mean SFH scores, with scores increasing from breakfast to lunch and lunch to dinner throughout the treatment period. Specifically, prior to dinner on Day 7 of treatment, PH284 subjects reported a 71% improvement in SFH versus baseline, while placebo subjects reported a less than 1% improvement. No unusual changes in body weight were observed in either the PH284 or placebo groups, though on average, there was a small gain in body weight for PH284 versus a small loss in placebo. PH284 demonstrated no serious adverse events, and adverse events reported for the PH284 group were similar to those reported in the placebo-treated group. All the adverse events reported were attributed to the underlying medical condition and were not deemed to be related to the administration of PH284 or placebo.