EC-18 for Oral Mucositis in Patients With Concomitant Chemoirradiation

Phase 2, Multi-center, Randomized, Double-blind, Placebo-controlled Study to Evaluate EC-18 for Oral Mucositis in Patients With Concomitant Chemoirradiation for Cancers of the Mouth, Oropharynx, Hypopharynx and Nasopharynx

This is a Phase 2, randomized, double-blind, placebo-controlled, 2-stage trial in subjects with squamous cell cancers of the mouth, oropharynx, hypopharynx and nasopharynx planned to receive standard fractionated IMRT-delivered radiotherapy with concomitant chemotherapy (cisplatin). Informed consent will be obtained from each subject prior to enrollment.

The trial will be performed in 2 stages:

Stage 1 will consist of a blinded parallel group safety study of 4 cohorts in which 24 subjects will be randomized (1:1:1:1) into four equally sized groups to receive one of three doses of EC-18 (500 mg, 1000 mg, 2000 mg; unit dose of 500 mg) or placebo. Stage 2 of the study will evaluate both safety and efficacy.

Stage 2 will consist of eighty (80) subjects who will be randomized in a 1:1 scheme to receive either placebo or 2000 mg of EC-18 as determined by iDSMB in Stage 1.

Study Overview

• Status: Completed
• Conditions: Stomatitis
• Intervention / Treatment: Drug: EC-18; Drug: Placebo

Detailed Description

This is a Phase 2, randomized, double-blind, placebo-controlled, 2-stage trial in subjects with squamous cell cancers of the mouth, oropharynx, hypopharynx and nasopharynx planned to receive standard fractionated IMRT-delivered radiotherapy with concomitant chemotherapy (cisplatin). Informed consent will be obtained from each subject prior to enrollment.

The trial will be performed in 2 stages:

Stage 1 will consist of a blinded parallel group safety study of 4 cohorts in which 24 subjects will be randomized (1:1:1:1) into four equally sized groups to receive one of three doses of EC-18 (500 mg, 1000 mg, 2000 mg; unit dose of 500 mg) or placebo delivered in the following daily schedule:

TDD AM PM Placebo 2 placebo 2 placebo 500mg 1 active + 1 placebo 2 placebo 1000mg 1 active + 1 placebo 1 active + 1 placebo 2000mg 2 active 2 active Dosing will commence on the first day of radiation (one hour after the first fraction) and continue until the last day of radiation. Test drug will be administered as an oral 500 mg capsule in divided daily doses as indicated above. At the completion of 4 weeks of dosing, an independent Data Safety Monitoring Board (DSMB) will evaluate safety endpoints in blinded fashion. If no safety issues are identified, the DSMB will approve continuation of dosing until the last day of radiation. If a safety issue is noted, the DSMB may unblind the treatment assignment to ascertain if the adverse event is associated with study drug. DSMB assessment will be repeated after completion of dosing (when each subject has been dosed through the last day of radiation). If no safety issues are identified, the efficacy component of the study (Stage 2) will commence using the highest dose of study drug consistent with a positive safety outcome.

Stage 2 of the study will evaluate both safety and efficacy. Eighty (80) subjects will be randomized in a 1:1 scheme to receive either placebo or 2000 mg of EC-18 as determined by iDSMB in Stage 1. Twice daily dosing will begin on the first day of radiation (1 hour after the first fraction) and continue until the last day of radiation (approximately 7 weeks).

The study will be performed in four phases: screening, the active dosing phase, short-term follow-up and long-term follow-up. The screening phase will be performed within 4 weeks of randomization and will determine subjects' eligibility. The active phase will begin on the first day of study drug dosing (also the first day of radiation therapy) and will continue until the last day of radiation therapy. This period typically is 7 weeks depending on the subject's radiation plan. The short-term follow-up phase will begin on the last day of radiation and continue for approximately 4-6 weeks until clinical and symptomatic signs of oral mucositis have resolved. The long-term follow-up phase extends for 12 months following the last dose of radiation and is included to assure that EC-18 does not the impact of tumor response to treatment.

• Study Type: Interventional
• Enrollment (Actual): 105
• Phase: Phase 2

Contacts and Locations

Study Locations

• United States
  • California
    • Long Beach, California, United States, 90822
      • Veterans Affairs Long Beach Health Care System
    • Los Angeles, California, United States, 90095
      • UCLA Jonsson Comprehensive Cancer Center
  • Florida
    • Miami, Florida, United States, 33176
      • Miami Cancer Institute
    • Miami Beach, Florida, United States, 33140
      • Mount Sinai Comprehensive Cancer Center
  • Georgia
    • Atlanta, Georgia, United States, 30322
      • Winship Cancer Institute of Emory University
  • Illinois
    • Evanston, Illinois, United States, 60201
      • Northshore University Healthsystem
    • Springfield, Illinois, United States, 62702
      • Southern Illinois University School of Medicine
  • Kansas
    • Wichita, Kansas, United States, 67214
      • Cancer Center of Kansas
  • Kentucky
    • Lexington, Kentucky, United States, 40536
      • University of Kentucky, Chandler Medical Center, CCTS
  • Maryland
    • Baltimore, Maryland, United States, 21204
      • Greater Baltimore Medical Center
  • Missouri
    • Saint Louis, Missouri, United States, 63110-1010
      • Washington University School of Medicine
  • New York
    • New York, New York, United States, 10003
      • Mount Sinai - Union Square
  • Oklahoma
    • Oklahoma City, Oklahoma, United States, 73104
      • University of Oklahoma Health Sciences Center
  • Oregon
    • Portland, Oregon, United States, 97239
      • Oregon Health and Science University
    • Portland, Oregon, United States, 97239
      • VA Portland Healthcare System
  • Pennsylvania
    • Easton, Pennsylvania, United States, 18045
      • St. Luke's Cancer Center - Anderson Campus
  • Texas
    • Tyler, Texas, United States, 75701
      • HOPE Cancer Center of East Texas
    • Waco, Texas, United States, 76712
      • Baylor Scott & White Medical Center - Hillcrest
  • Washington
    • Spokane, Washington, United States, 98405
      • Multicare Institute for Research and Innovation
    • Tacoma, Washington, United States, 98405
      • Multicare Institute for Research and Innovation

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Signed informed consent
• Male or female age 18 years or older
• Pathologically confirmed diagnosis of squamous cell carcinoma of the mouth, oropharynx, hypopharynx or nasopharynx
• Planned to receive IMRT with daily fractions of 2.0 Gy to 2.2 Gy to a cumulative dose of at least 60 Gy and a maximum of 72 Gy
• Radiation fields to include at least two mucositis sites at risk (buccal mucosa, floor of mouth, ventral and lateral tongue, soft palate) in which both sites receive a minimum cumulative dose of 55 Gy
• Planned to receive concomitant single agent chemotherapy with cisplatin given either weekly or tri-weekly
• Eastern Cooperative Oncology Group (ECOG) Performance Status ≤ 1
• Screening Laboratory Values Hemoglobin ≥ 9g/dL White blood cell count ≥ 3,500 cells/mm3 Absolute neutrophil count ≥ 1,500 cells/mm3 Total bilirubin ≤ 2 times upper limit of normal Serum AST and ALT ≤ 2.5 times upper limit of normal Serum creatinine concentration ≤ 2mg/mL Pregnancy test: negative for females of childbearing potential
• Subjects of childbearing potential must consent to utilize a medically accepted means of contraception throughout the active dosing period with study medication and for a minimum of 30 days following the administration of the last dose of study medication.

Exclusion Criteria:

• Unable to provide informed consent or, in the opinion of the Principal Investigator, comply with the protocol.

  • Prior radiation therapy to the head and neck
  • Metastatic disease
  • Presence of active infectious disease excluding oral candidiasis
  • Presence of oral mucositis or any oral lesion that would confound the assessment of oral mucositis
  • Active systemic disease or condition known to impact the risk or course of oral mucositis including chronic immunosuppression and known seropositivity for HIV
  • Use of any investigational agent within 30 days of the first radiation dose
  • Active alcohol abuse syndrome
  • Subjects with a history of hepatitis of any etiology or hepatic insufficiency
  • Pregnant or nursing at the time of signing informed consent
  • Known sensitivity to any study medication
  • Unwilling or unable to complete study diary
  • Any other condition or prior therapy that, in the opinion of the Investigator, would make the subject unsuitable for the study or unable to comply with the protocol

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Sequential Assignment
• Masking: Double

Number of Arms

6

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Placebo Comparator: [Part 1] Placebo; Matching placebo	Drug: Placebo; Placebo to match EC-18 capsule administration; Other Names: Placebo capsule
Experimental: [Part 1] EC-18 500 mg; 1 capsule of EC-18	Drug: EC-18; Oral administration of EC-18 twice daily; Other Names: EC-18 soft capsules
Experimental: [Part 1] EC-18 1000 mg; 2 capsules of EC-18 500 mg	Drug: EC-18; Oral administration of EC-18 twice daily; Other Names: EC-18 soft capsules
Experimental: [Part 1] EC-18 2000 mg; 4 capsules of EC-18 500 mg	Drug: EC-18; Oral administration of EC-18 twice daily; Other Names: EC-18 soft capsules
Placebo Comparator: [Part 2] Placebo; Placebo 2000mg	Drug: Placebo; Placebo to match EC-18 capsule administration; Other Names: Placebo capsule
Experimental: [Part 2] EC-18 2000mg; RP2D: EC-18 2000mg (Part 1 result)	Drug: EC-18; Oral administration of EC-18 twice daily; Other Names: EC-18 soft capsules

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Duration of Severe Oral Mucositis (SOM) during the active treatment and short-term follow-up periods	Duration of Grade 3 or 4 oral mucositis	7 Weeks (Active) + 4-6 Weeks (STFU)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Duration of SOM during the active treatment period	Duration of Grade 3 or 4 oral mucositis	7 Weeks (Active)
Incidence of severe oral mucositis defined as WHO grade of 3 or 4 during the active treatment period	Incidence of severe oral mucositis defined as WHO grade of 3 or 4	7 Weeks (Active)
Incidence of severe oral mucositis defined as WHO grade of 3 or 4 during the active treatment and short-term follow-up periods	Incidence of severe oral mucositis defined as WHO grade of 3 or 4	7 Weeks (Active) + 4-6 Weeks (STFU)
Incidence of ulcerative mucositis (defined as WHO grade of 2, 3, or 4) during the active treatment period	Incidence of WHO grade of 2, 3, or 4 ulcerative mucositis	7 Weeks (Active)
Incidence of ulcerative mucositis (defined as WHO grade of 2, 3, or 4) during the active treatment and short-term follow-up periods	Incidence of WHO grade of 2, 3, or 4 ulcerative mucositis	7 Weeks (Active) + 4-6 Weeks (STFU)
Duration of ulcerative mucositis (WHO criteria)	Duration of grade 3 or 4 ulcerative mucositis	From the onset to the day when ulcerative mucositis has resolved (up to 22 weeks)
Delay in onset of SOM (WHO criteria)	Time to onset of grade 3 or 4 severe oral mucositis	Start of the radiation treatment (Day 1) until SOM has resolved (up to 22 weeks)
Reduction in patient-reported mucositis-related mouth pain and analgesic use	Frequency of disease-related mouth pain and analgesic use	7 Weeks (Active) + 4-6 Weeks (STFU)

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Duration of severe oral mucositis as defined by RTOG criteria	Duration of severe oral mucositis based on RTOG criteria	7 Weeks
Incidence of severe oral mucositis as defined by RTOG criteria	Incidence of severe oral mucositis as defined by RTOG criteria	7 Weeks
Duration of severe oral mucositis as defined by NCI-CTCAE v.4 criteria	Duration of severe oral mucositis based on NCI-CTCAE v.4 criteria	7 Weeks
Incidence of severe oral mucositis as defined by NCI-CTCAE v.4 criteria	Incidence of severe oral mucositis based on NCI-CTCAE v.4 criteria	7 Weeks
Patient reported outcomes as measured by the Oral Mucositis Daily Questionnaire (OMDQ)	Patient reported outcomes based on 0-4 and 0-10 scales (measuring quality of life)	7 Weeks (Active) + 4-6 Weeks (STFU)
Patient reported outcomes as measured by Weekly Functional Assessment of Cancer Therapy-for Patients with Head & Neck Cancer (FACT-HN)	Patient reported outcomes based on 0-4 scale (measuring quality of life)	7 Weeks (Active) + 4-6 Weeks (STFU)
Breaks in radiation delivery	Frequency of interruptions in radiation therapy	7 Weeks
Break duration in radiation delivery	Duration of interruptions in radiation therapy	7 Weeks
Healthcare resource use including reliance on gastrostomy feeding, unplanned office visits, emergency room visits, and hospitalizations	Number of subjects who utilized healthcare resources listed above	7 Weeks (Active) + 4-6 Weeks (STFU)

Collaborators and Investigators

• Sponsor: Enzychem Lifesciences Corporation
• Investigators: Principal Investigator: Dong Moon Shin, MD, Emory University Winship Cancer Institute; Principal Investigator: Mahesh Kudrimoti, MD, University of Kentucky, Chandler Medical Center, CCTS

Study record dates

Study Major Dates

• Study Start (Actual): July 3, 2018
• Primary Completion (Actual): May 14, 2021
• Study Completion (Actual): May 14, 2021

Study Registration Dates

• First Submitted: June 13, 2017
• First Submitted That Met QC Criteria: June 26, 2017
• First Posted (Actual): June 27, 2017

Study Record Updates

• Last Update Posted (Actual): July 27, 2023
• Last Update Submitted That Met QC Criteria: July 24, 2023
• Last Verified: July 1, 2023

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Digestive System Diseases; Gastrointestinal Diseases; Gastroenteritis; Stomatognathic Diseases; Mouth Diseases; Mucositis; Stomatitis
• Other Study ID Numbers: EC-18-202

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No