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An Open, Uncontrolled Study of GK567 in the Deodorization of Malodorous Fungating Neoplastic Tumours

An Open, Uncontrolled Study Investigating the Safety and Efficacy of GK567 in the Deodorization of Malodorous Infected Cutaneous Fungating Neoplastic Tumours, Over 14 Days of Treatment

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01541930
Acronym
GK567
Enrollment
21
Registered
2012-03-01
Start date
2012-04-30
Completion date
2012-12-31
Last updated
2014-02-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Malodorous Infected Cutaneous Ulcer

Brief summary

This clinical trial objective is to investigate the safety and efficacy of GK567 to alleviate malodour of foul smelling, anaerobically infected fungating neoplastic tumours, over 14 days of treatment. The clinical hypothesis is that the success rate is no worse than 70% in the population of interest, where success for a patient is defined as a smell score of 0 or 1 at Day 14/end of treatment, as assessed by the Study Investigator.

Interventions

DRUGGK567

Once or twice daily, for 14 days, up to 30 g per day

Sponsors

Galderma R&D
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* The subject is a male or female aged between 20 years or older. * The subject has a cutaneous fungating neoplastic tumour with a smell that suggests established or early infection, with a minimum score of 2 (i.e. mildly offensive smell) on a 0-4 smell scale, (based on the Study investigator's assessment)

Exclusion criteria

* The subject is currently receiving systemic antibiotics or received in the last 2 weeks, * The subject is currently receiving systemic or topical Metronidazole or received in the last week, * The subject is currently receiving topical antibiotics or received such treatment applied on cutaneous fungating neoplastic tumour in the last 1 week, * The subject already receives any topical treatment on the cutaneous fungating neoplastic tumour

Design outcomes

Primary

MeasureTime frameDescription
The Success Rateat Day 14 (end of treatment)The success rate, where success for a patient is defined as a smell score of 0 or 1 (0: No smell, 1: Smell present but not offensive) as assessed by the Study Investigator

Secondary

MeasureTime frameDescription
Smell Score by Investigatoron Days 0 (baseline), 7, and 14Tumour smell score was evaluated by the Study Investigator using the following scale; 0: No smell, 1: Smell present but not offensive, 2: Mildly offensive smell, 3: Moderately offensive smell, 4: Extremely offensive smell
Smell Score by Nurseon Days 0 (baseline), 7, and 14Tumour smell score was evaluated by the Nurse using the following scale; 0: No smell, 1: Smell present but not offensive, 2: Mildly offensive smell,3: Moderately offensive smell, 4: Extremely offensive smell
Smell Score by Patienton Days 0 (baseline), 7, and 14Tumour smell score was evaluated by the Patient using the following scale; 0: No smell, 1: Smell present but not offensive, 2: Mildly offensive smell,3: Moderately offensive smell, 4: Extremely offensive smell
Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)on Days 0 (baseline), 7, and 14Appearance score was evaluated by the Study Investigator using the following scale; 0: None (No discharge, e.g. frequency of dressing change: once daily), 1: Mild (Dressing need to be Changed twice daily), 2: Moderate (Dressing need to be Changed 3 times daily), 3: Marked (Dressing need to be Changed \>3 times daily / Bloody).
Pain (Visual Analogue Scale)on Days 0 (baseline), 7, and 14The pain linked to the fungating tumour over the last 24 hours was evaluated by the patient. The pain was graded using a 100 mm linear visual analogical scale (graded from 0 mm = no pain to 100 mm = severe pain).

Countries

Japan

Participant flow

Recruitment details

April 2012 to December 2012 in Japan

Participants by arm

ArmCount
GK567
Metronidazole Gel 0.75%, Once or twice daily, for 14 days, up to 30g
21
Total21

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyWithdrawal by Subject1

Baseline characteristics

CharacteristicGK567
Age, Continuous64.4 years
STANDARD_DEVIATION 12.2
Primary Disease
Breast Cancer
21 participants
Primary Disease
Other Cancer
0 participants
Region of Enrollment
Japan
21 participants
Sex: Female, Male
Female
21 Participants
Sex: Female, Male
Male
0 Participants
Skin Ulcer Size68.6 cm^2
STANDARD_DEVIATION 35.4

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
14 / 21
serious
Total, serious adverse events
1 / 21

Outcome results

Primary

The Success Rate

The success rate, where success for a patient is defined as a smell score of 0 or 1 (0: No smell, 1: Smell present but not offensive) as assessed by the Study Investigator

Time frame: at Day 14 (end of treatment)

Population: All patients who received the treatment at least once (Safety population) were included in all efficacy and safety analyses. Only observed cases were part of the analyses. If the primary endpoint was missing, an additional analysis of this endpoint was performed using the last observation carried forward (LOCF) to impute the missing data.

ArmMeasureValue (NUMBER)
GK567The Success Rate95.2 percentage of participants
Secondary

Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)

Appearance score was evaluated by the Study Investigator using the following scale; 0: None (No discharge, e.g. frequency of dressing change: once daily), 1: Mild (Dressing need to be Changed twice daily), 2: Moderate (Dressing need to be Changed 3 times daily), 3: Marked (Dressing need to be Changed \>3 times daily / Bloody).

Time frame: on Days 0 (baseline), 7, and 14

Population: All patients who received the treatment at least once (Safety population) were included in all efficacy and safety analyses.

ArmMeasureGroupValue (NUMBER)
GK567Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)0 None1 participants
GK567Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)1 Mild12 participants
GK567Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)2 Moderate3 participants
GK567Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)3 Marked5 participants
GK567, Day 7Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)3 Marked4 participants
GK567, Day 7Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)0 None5 participants
GK567, Day 7Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)2 Moderate0 participants
GK567, Day 7Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)1 Mild12 participants
GK567, Day 14Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)3 Marked2 participants
GK567, Day 14Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)1 Mild10 participants
GK567, Day 14Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)2 Moderate1 participants
GK567, Day 14Appearance (Volume and Nature of Discharge at Cutaneous Ulcer)0 None7 participants
Secondary

Pain (Visual Analogue Scale)

The pain linked to the fungating tumour over the last 24 hours was evaluated by the patient. The pain was graded using a 100 mm linear visual analogical scale (graded from 0 mm = no pain to 100 mm = severe pain).

Time frame: on Days 0 (baseline), 7, and 14

Population: All patients who received the treatment at least once (Safety population) were included in all efficacy and safety analyses.

ArmMeasureValue (MEAN)Dispersion
GK567Pain (Visual Analogue Scale)28.3 mmStandard Deviation 29.1
GK567, Day 7Pain (Visual Analogue Scale)25.9 mmStandard Deviation 27.1
GK567, Day 14Pain (Visual Analogue Scale)22.2 mmStandard Deviation 25.3
Secondary

Smell Score by Investigator

Tumour smell score was evaluated by the Study Investigator using the following scale; 0: No smell, 1: Smell present but not offensive, 2: Mildly offensive smell, 3: Moderately offensive smell, 4: Extremely offensive smell

Time frame: on Days 0 (baseline), 7, and 14

Population: All patients who received the treatment at least once (Safety population) were included in all efficacy and safety analyses.

ArmMeasureGroupValue (NUMBER)
GK567Smell Score by Investigator3: Moderately offensive smell3 participants
GK567Smell Score by Investigator2: Mildly offensive smell13 participants
GK567Smell Score by Investigator0: No smell0 participants
GK567Smell Score by Investigator1: Smell present but not offensive0 participants
GK567Smell Score by Investigator4: Extremely offensive smell5 participants
GK567, Day 7Smell Score by Investigator2: Mildly offensive smell2 participants
GK567, Day 7Smell Score by Investigator0: No smell11 participants
GK567, Day 7Smell Score by Investigator1: Smell present but not offensive5 participants
GK567, Day 7Smell Score by Investigator3: Moderately offensive smell3 participants
GK567, Day 7Smell Score by Investigator4: Extremely offensive smell0 participants
GK567, Day 14Smell Score by Investigator4: Extremely offensive smell0 participants
GK567, Day 14Smell Score by Investigator3: Moderately offensive smell1 participants
GK567, Day 14Smell Score by Investigator0: No smell13 participants
GK567, Day 14Smell Score by Investigator2: Mildly offensive smell0 participants
GK567, Day 14Smell Score by Investigator1: Smell present but not offensive6 participants
Secondary

Smell Score by Nurse

Tumour smell score was evaluated by the Nurse using the following scale; 0: No smell, 1: Smell present but not offensive, 2: Mildly offensive smell,3: Moderately offensive smell, 4: Extremely offensive smell

Time frame: on Days 0 (baseline), 7, and 14

Population: All patients who received the treatment at least once (Safety population) were included in all efficacy and safety analyses.

ArmMeasureGroupValue (NUMBER)
GK567Smell Score by Nurse3: Moderately offensive smell3 participants
GK567Smell Score by Nurse4: Extremely offensive smell5 participants
GK567Smell Score by Nurse1: Smell present but not offensive3 participants
GK567Smell Score by Nurse0: No smell1 participants
GK567Smell Score by Nurse2: Mildly offensive smell9 participants
GK567, Day 7Smell Score by Nurse4: Extremely offensive smell1 participants
GK567, Day 7Smell Score by Nurse2: Mildly offensive smell2 participants
GK567, Day 7Smell Score by Nurse3: Moderately offensive smell2 participants
GK567, Day 7Smell Score by Nurse0: No smell12 participants
GK567, Day 7Smell Score by Nurse1: Smell present but not offensive4 participants
GK567, Day 14Smell Score by Nurse4: Extremely offensive smell0 participants
GK567, Day 14Smell Score by Nurse0: No smell15 participants
GK567, Day 14Smell Score by Nurse1: Smell present but not offensive4 participants
GK567, Day 14Smell Score by Nurse2: Mildly offensive smell1 participants
GK567, Day 14Smell Score by Nurse3: Moderately offensive smell0 participants
Secondary

Smell Score by Patient

Tumour smell score was evaluated by the Patient using the following scale; 0: No smell, 1: Smell present but not offensive, 2: Mildly offensive smell,3: Moderately offensive smell, 4: Extremely offensive smell

Time frame: on Days 0 (baseline), 7, and 14

Population: All patients who received the treatment at least once (Safety population) were included in all efficacy and safety analyses.

ArmMeasureGroupValue (NUMBER)
GK567Smell Score by Patient3: Moderately offensive smell4 participants
GK567Smell Score by Patient2: Mildly offensive smell6 participants
GK567Smell Score by Patient0: No smell1 participants
GK567Smell Score by Patient4: Extremely offensive smell2 participants
GK567Smell Score by Patient1: Smell present but not offensive8 participants
GK567, Day 7Smell Score by Patient1: Smell present but not offensive12 participants
GK567, Day 7Smell Score by Patient0: No smell9 participants
GK567, Day 7Smell Score by Patient2: Mildly offensive smell0 participants
GK567, Day 7Smell Score by Patient3: Moderately offensive smell0 participants
GK567, Day 7Smell Score by Patient4: Extremely offensive smell0 participants
GK567, Day 14Smell Score by Patient4: Extremely offensive smell0 participants
GK567, Day 14Smell Score by Patient3: Moderately offensive smell0 participants
GK567, Day 14Smell Score by Patient0: No smell16 participants
GK567, Day 14Smell Score by Patient2: Mildly offensive smell0 participants
GK567, Day 14Smell Score by Patient1: Smell present but not offensive4 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026