Cellceutix Reports Very Encouraging Interim Analysis of Phase 2 Drug Candidate Brilacidin for Severe Oral Mucositis (OM) in Head and Neck Cancer Patients; High Potential for Preventative Treatment
BEVERLY, Mass., March 27, 2017 (GLOBE NEWSWIRE) -- Cellceutix Corporation, (CTIX) (“the Company”), today presented positive results from the Company's ongoing randomized, double-blind Phase 2 study of Brilacidin in the prevention and control of Oral Mucositis (OM) in patients receiving chemoradiation for treatment of Head and Neck Cancer. In a preliminary interim analysis, a marked reduction in incidence of Severe OM (WHO Grade > 3) was observed in patients treated with Brilacidin who received at least 55 Gy cumulative units of radiation. Study results, complementing favorable data released last week in the treatment of Ulcerative Proctitis/Proctosigmoiditis with Brilacidin, further establish Brilacidin as a novel anti-inflammatory drug candidate with potentially broad applications.
Presented below is information on Cellceutix’s clinical trial of Brilacidin for OM, including preliminary Interim Analysis of 19 patients (9 administered Brilacidin; 10 administered placebo) who have reached or passed the planned visit at the end of 5 weeks on study, and received a cumulative radiation dose of at least 55 Gy.
STUDY DESIGN
CTIX-BRI-205 is a Phase 2 randomized, double-blind, placebo-controlled study evaluating the safety and efficacy of Brilacidin as an oral rinse in preventing and controlling OM in patients receiving chemoradiation therapy for Head and Neck Cancer. The study is anticipated to enroll approximately 60 patients in the United States, 30 each to Brilacidin treatment or to placebo (water). Brilacidin (45 mg/15 ml oral rinse -- “swish and spit”) is administered 3 times daily across 7 weeks (49 days). Pharmacokinetics of Brilacidin are to be evaluated if there is measurable systemic exposure (from drug concentrations in plasma).
The Brilacidin OM trial uses a World Health Organization (WHO) OM Grading Scale, a common measurement tool in assessing the presence and severity of OM, as defined below.
WHO Scale for OM
Grade 0 = None
Grade 1 = Erythema and Mouth Pain Soreness; no Ulceration/Pseudomembrane formation
Grade 2 = Ulceration/Pseudomembrane formation; solid diet
Grade 3 = Ulceration/Pseudomembrane formation; liquid diet
Grade 4 = Ulceration/Pseudomembrane formation; not able to tolerate a solid or liquid diet (except enough liquid for medication)
Primary Endpoints of the Brilacidin OM trial are:
Incidence of Severe OM (WHO Grade > 3) experienced during radiation therapy (across 7 weeks) by patients with Head and Neck Cancer receiving a cumulative radiation dose of at least 55 Gy in the course of their chemoradiation treatment
Safety and Tolerability of Brilacidin
A Secondary Endpoint included in the Interim Analysis is:
Duration of Severe OM (WHO Grade > 3)
Pharmacokinetics of Brilacidin is determined from:
Brilacidin concentrations in plasma
INTERIM ANALYSIS
Preliminary efficacy and safety data from 19 patients who met the criteria for evaluation were reviewed. To be included, patients needed to have reached or passed the planned visit at the end of 5 weeks on study, and have received a cumulative radiation dose of at least 55 Gy. Patients receiving Brilacidin, as compared to patients on placebo, showed a markedly reduced rate of Severe OM (WHO Grade > 3). Additionally, Brilacidin was generally safe and well-tolerated.
Primary Efficacy Results Incidence of Severe OM (WHO Grade > 3)
Active Arm (Brilacidin): 2 of 9 patients (22.2 percent)
Control Arm (Placebo): 7 of 10 patients (70 percent)
Secondary Efficacy Results Duration of Severe OM (WHO Grade > 3)
Active Arm (Brilacidin): Mean 10.5 days (Range 3 to 18 days; 2 patients)
Control Arm (Placebo): Mean 14 days (Range 3 to 39 days; 7 patients)
Safety and Tolerability Profile
Brilacidin administered as an oral rinse was generally well-tolerated by patients
Safety findings were typical for patients with Head and Neck Cancer being treated with chemoradiation; no treatment group differences were apparent on vital signs and clinical laboratory safety tests
Six patients (2 in Active Arm, 4 in Control Arm) experienced at least one adverse event categorized as serious. Nine Serious Adverse Events (SAEs) were reported for these 6 patients, and all were classified by the Investigator as Not Related to study drug
Incidence of Treatment-Emergent Adverse Events (TEAEs)
Majority of the TEAEs reported (Active Arm, 164 TEAEs; Control Arm, 143 TEAEs) were related to chemoradiation or the underlying study indication
No TEAEs were classified as Likely Related or Definitely Related to study treatment
Majority of the TEAEs reported (Active Arm, 164 TEAEs; Control Arm, 143 TEAEs) were related to chemoradiation or the underlying study indication
No TEAEs were classified as Likely Related or Definitely Related to study treatment
Pharmacokinetics
Plasma samples from 6 patients treated with Brilacidin were analyzed and all concentrations of Brilacidin were below the lower limit of quantification (i.e., < 10 ng/mL)
“These interim results suggest the potential for an even greater effective therapeutic response as formulation and dosing is further optimized,” commented Arthur P. Bertolino, MD, PhD, MBA, President and Chief Medical Officer at Cellceutix. “There currently is no existing preventative treatment available for OM patients in this population, with only limited therapies focusing on symptom relief. Already under Fast Track designation, should Brilacidin earn FDA approval for the treatment of Oral Mucositis, countless patients may no longer have to suffer from this horribly debilitating condition as a side effect of cancer treatment. The use of Brilacidin to prevent the onset of OM could even lead to an entirely new standard of care in this area as we strive to bring this drug to market.”
