Trial Outcomes & Findings for Safety and Preliminary Efficacy of Lipoxin Analog BLXA4-ME Oral Rinse for the Treatment of Gingivitis (NCT NCT02342691)

NCT ID: NCT02342691

Last Updated: 2023-12-20

Results Overview

Adverse events will be recorded throughout the study, and may include events reported by subjects or changes observed in oral cavity examinations or vital signs (assessed at baseline, Days 3, 7, 14, 21 and 28). Blood and urine will be collected for safety labs at Days 14 and 28 after product administration, and subjects will undergo close monitoring for mucosal inflammation and irritancy and development of periodontitis, using standard clinical periodontal measurements. Follow-up will also occur at 90 days to assess for adverse events.

Recruitment status

COMPLETED

Study phase

PHASE1/PHASE2

Target enrollment

127 participants

Primary outcome timeframe

up to 90 days

Results posted on

2023-12-20

Participant Flow

Per protocol, 125 subjects were planned to be included in the efficacy population who had a baseline and at least 1 post-baseline assessment of 1 or more of the secondary efficacy outcome measures. Per protocol, subjects who dropped out or withdrew prior to Day 14 were replaced in the efficacy population. Two subjects were dropped out before Day 14, thus were replaced.

Participant milestones

Participant milestones
Measure
BLXA4-ME Oral Rinse
The topical oral rinse dosage form of BLXA4-ME (also known as ClinRinse-1) will consist of drug substance prepared at a concentration of 1.0 μM in an aqueous vehicle solution BLXA4: BLXA4-ME is a member of a new class of chemically and metabolically stable lipoxin analogs featuring a replacement of the tetraene unit of native lipoxin-A4 (LXA4) with a substituted benzo-fused ring system. The full chemical name of the BLXA4-ME drug substance is (5S, 6R, E)-methyl 5,6-dihydroxy-8-(2-((R,E)-3-hydroxyoct-1-enyl) phenyl) oct-7-enoate.
Placebo Oral Rinse
The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste Placebo oral rinse: The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste
No Rinse Control
The no-rinse control group will use no oral rinse, in order to assess the effect of the rinsing action independent of the active ingredients
Overall Study
STARTED
50
50
27
Overall Study
COMPLETED
47
49
27
Overall Study
NOT COMPLETED
3
1
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Safety and Preliminary Efficacy of Lipoxin Analog BLXA4-ME Oral Rinse for the Treatment of Gingivitis

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
BLXA4-ME Oral Rinse Group
n=50 Participants
The treatment group received daily BLXA4-ME 1μM concentration in an oral rinse
Placebo Rinse Group
n=50 Participants
The study group received placebo rinse similar to the rinse used by the treatment group except BLXA4-ME.
No-rinse Control Group
n=27 Participants
The study group was a control group with no-rinse.
Total
n=127 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Age, Categorical
Between 18 and 65 years
50 Participants
n=5 Participants
50 Participants
n=7 Participants
27 Participants
n=5 Participants
127 Participants
n=4 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Sex: Female, Male
Female
22 Participants
n=5 Participants
35 Participants
n=7 Participants
16 Participants
n=5 Participants
73 Participants
n=4 Participants
Sex: Female, Male
Male
28 Participants
n=5 Participants
15 Participants
n=7 Participants
11 Participants
n=5 Participants
54 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
12 Participants
n=5 Participants
12 Participants
n=7 Participants
0 Participants
n=5 Participants
24 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
36 Participants
n=5 Participants
36 Participants
n=7 Participants
27 Participants
n=5 Participants
99 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants
n=5 Participants
2 Participants
n=7 Participants
0 Participants
n=5 Participants
4 Participants
n=4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
Race (NIH/OMB)
Asian
4 Participants
n=5 Participants
2 Participants
n=7 Participants
3 Participants
n=5 Participants
9 Participants
n=4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Black or African American
13 Participants
n=5 Participants
8 Participants
n=7 Participants
7 Participants
n=5 Participants
28 Participants
n=4 Participants
Race (NIH/OMB)
White
26 Participants
n=5 Participants
37 Participants
n=7 Participants
17 Participants
n=5 Participants
80 Participants
n=4 Participants
Race (NIH/OMB)
More than one race
3 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
4 Participants
n=4 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
n=5 Participants
2 Participants
n=7 Participants
0 Participants
n=5 Participants
5 Participants
n=4 Participants
Region of Enrollment
United States
50 participants
n=5 Participants
50 participants
n=7 Participants
27 participants
n=5 Participants
127 participants
n=4 Participants
Modified Gingival Index
2.25 units on a scale
STANDARD_DEVIATION 0.141 • n=5 Participants
2.30 units on a scale
STANDARD_DEVIATION 0.190 • n=7 Participants
2.22 units on a scale
STANDARD_DEVIATION 0.174 • n=5 Participants
2.26 units on a scale
STANDARD_DEVIATION 0.171 • n=4 Participants

PRIMARY outcome

Timeframe: up to 90 days

Adverse events will be recorded throughout the study, and may include events reported by subjects or changes observed in oral cavity examinations or vital signs (assessed at baseline, Days 3, 7, 14, 21 and 28). Blood and urine will be collected for safety labs at Days 14 and 28 after product administration, and subjects will undergo close monitoring for mucosal inflammation and irritancy and development of periodontitis, using standard clinical periodontal measurements. Follow-up will also occur at 90 days to assess for adverse events.

Outcome measures

Outcome measures
Measure
BLXA4-ME Oral Rinse
n=50 Participants
The topical oral rinse dosage form of BLXA4-ME (also known as ClinRinse-1) will consist of drug substance prepared at a concentration of 1.0 μM in an aqueous vehicle solution BLXA4: BLXA4-ME is a member of a new class of chemically and metabolically stable lipoxin analogs featuring a replacement of the tetraene unit of native lipoxin-A4 (LXA4) with a substituted benzo-fused ring system. The full chemical name of the BLXA4-ME drug substance is (5S, 6R, E)-methyl 5,6-dihydroxy-8-(2-((R,E)-3-hydroxyoct-1-enyl) phenyl) oct-7-enoate.
Placebo Oral Rinse
n=50 Participants
The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste Placebo oral rinse: The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste
No Rinse Control
n=27 Participants
The no-rinse control group will use no oral rinse, in order to assess the effect of the rinsing action independent of the active ingredients
Incidence of Adverse Events
19 Participants
10 Participants
3 Participants

SECONDARY outcome

Timeframe: 28 days

Population: The efficacy population consisted of all subjects from the safety population who had a baseline and at least 1 post-baseline assessment of 1 or more of the secondary efficacy outcome measures. Subjects who dropped out or withdrew prior to Day 14 were replaced in the efficacy population. For the efficacy evaluations, subjects were analyzed according to the treatment actually received.

MGI is a visual index used to score gingival inflammation on a scale of 0-4. Higher scores indicate increasing levels of gingival inflammation (worse outcome).

Outcome measures

Outcome measures
Measure
BLXA4-ME Oral Rinse
n=47 Participants
The topical oral rinse dosage form of BLXA4-ME (also known as ClinRinse-1) will consist of drug substance prepared at a concentration of 1.0 μM in an aqueous vehicle solution BLXA4: BLXA4-ME is a member of a new class of chemically and metabolically stable lipoxin analogs featuring a replacement of the tetraene unit of native lipoxin-A4 (LXA4) with a substituted benzo-fused ring system. The full chemical name of the BLXA4-ME drug substance is (5S, 6R, E)-methyl 5,6-dihydroxy-8-(2-((R,E)-3-hydroxyoct-1-enyl) phenyl) oct-7-enoate.
Placebo Oral Rinse
n=49 Participants
The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste Placebo oral rinse: The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste
No Rinse Control
n=27 Participants
The no-rinse control group will use no oral rinse, in order to assess the effect of the rinsing action independent of the active ingredients
Change in Mean MGI (Baseline and 28 Days)
-0.27 units on a scale
Standard Error 0.029
-0.21 units on a scale
Standard Error 0.029
-0.17 units on a scale
Standard Error 0.038

SECONDARY outcome

Timeframe: 28 days

Gingival Bleeding was assessed using the dichotomous bleeding on probing index Bleeding on probing is reported as the percentage of tooth-sites that bleed on probing within a subject and higher BOP values indicate greater gingival inflammation.

Outcome measures

Outcome measures
Measure
BLXA4-ME Oral Rinse
n=47 Participants
The topical oral rinse dosage form of BLXA4-ME (also known as ClinRinse-1) will consist of drug substance prepared at a concentration of 1.0 μM in an aqueous vehicle solution BLXA4: BLXA4-ME is a member of a new class of chemically and metabolically stable lipoxin analogs featuring a replacement of the tetraene unit of native lipoxin-A4 (LXA4) with a substituted benzo-fused ring system. The full chemical name of the BLXA4-ME drug substance is (5S, 6R, E)-methyl 5,6-dihydroxy-8-(2-((R,E)-3-hydroxyoct-1-enyl) phenyl) oct-7-enoate.
Placebo Oral Rinse
n=49 Participants
The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste Placebo oral rinse: The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste
No Rinse Control
n=27 Participants
The no-rinse control group will use no oral rinse, in order to assess the effect of the rinsing action independent of the active ingredients
Change in Percent Bleeding on Probing (Baseline and 28 Days)
-12.67 percentage of tooth sites
Standard Error 1.59
-12.32 percentage of tooth sites
Standard Error 1.588
-9.53 percentage of tooth sites
Standard Error 2.14

SECONDARY outcome

Timeframe: 28 days

Plaque index (PI) is a visual index used to score (ranging from 0 to 5). A higher score is indicative of higher plaque build-up (worse outcome).

Outcome measures

Outcome measures
Measure
BLXA4-ME Oral Rinse
n=50 Participants
The topical oral rinse dosage form of BLXA4-ME (also known as ClinRinse-1) will consist of drug substance prepared at a concentration of 1.0 μM in an aqueous vehicle solution BLXA4: BLXA4-ME is a member of a new class of chemically and metabolically stable lipoxin analogs featuring a replacement of the tetraene unit of native lipoxin-A4 (LXA4) with a substituted benzo-fused ring system. The full chemical name of the BLXA4-ME drug substance is (5S, 6R, E)-methyl 5,6-dihydroxy-8-(2-((R,E)-3-hydroxyoct-1-enyl) phenyl) oct-7-enoate.
Placebo Oral Rinse
n=48 Participants
The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste Placebo oral rinse: The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste
No Rinse Control
n=26 Participants
The no-rinse control group will use no oral rinse, in order to assess the effect of the rinsing action independent of the active ingredients
Change in PI (Baseline and 28 Days)
-0.08 units on a scale
Standard Error 0.044
-0.12 units on a scale
Standard Error 0.044
-0.00 units on a scale
Standard Error 0.060

Adverse Events

BLXA4-ME Oral Rinse

Serious events: 1 serious events
Other events: 18 other events
Deaths: 0 deaths

Placebo Oral Rinse

Serious events: 0 serious events
Other events: 10 other events
Deaths: 0 deaths

No Rinse Control

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
BLXA4-ME Oral Rinse
n=50 participants at risk
The topical oral rinse dosage form of BLXA4-ME (also known as ClinRinse-1) will consist of drug substance prepared at a concentration of 1.0 μM in an aqueous vehicle solution BLXA4: BLXA4-ME is a member of a new class of chemically and metabolically stable lipoxin analogs featuring a replacement of the tetraene unit of native lipoxin-A4 (LXA4) with a substituted benzo-fused ring system. The full chemical name of the BLXA4-ME drug substance is (5S, 6R, E)-methyl 5,6-dihydroxy-8-(2-((R,E)-3-hydroxyoct-1-enyl) phenyl) oct-7-enoate.
Placebo Oral Rinse
n=50 participants at risk
The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste Placebo oral rinse: The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste
No Rinse Control
n=27 participants at risk
The no-rinse control group will use no oral rinse, in order to assess the effect of the rinsing action independent of the active ingredients
Injury, poisoning and procedural complications
Adverse Drug Reaction
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months

Other adverse events

Other adverse events
Measure
BLXA4-ME Oral Rinse
n=50 participants at risk
The topical oral rinse dosage form of BLXA4-ME (also known as ClinRinse-1) will consist of drug substance prepared at a concentration of 1.0 μM in an aqueous vehicle solution BLXA4: BLXA4-ME is a member of a new class of chemically and metabolically stable lipoxin analogs featuring a replacement of the tetraene unit of native lipoxin-A4 (LXA4) with a substituted benzo-fused ring system. The full chemical name of the BLXA4-ME drug substance is (5S, 6R, E)-methyl 5,6-dihydroxy-8-(2-((R,E)-3-hydroxyoct-1-enyl) phenyl) oct-7-enoate.
Placebo Oral Rinse
n=50 participants at risk
The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste Placebo oral rinse: The placebo preparation will consist of formulated oral rinse without BLXA4-ME and will be identical to the test rinse in color, appearance and taste
No Rinse Control
n=27 participants at risk
The no-rinse control group will use no oral rinse, in order to assess the effect of the rinsing action independent of the active ingredients
Gastrointestinal disorders
Dry mouth
6.0%
3/50 • Number of events 3 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Gastrointestinal disorders
Sensitivity of teeth
2.0%
1/50 • Number of events 1 • 3 months
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/27 • 3 months
Gastrointestinal disorders
Aphthous stomatitis
0.00%
0/50 • 3 months
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/27 • 3 months
Investigations
Alanine aminotransferase increased
4.0%
2/50 • Number of events 2 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Investigations
Carbon dioxide increased
2.0%
1/50 • Number of events 1 • 3 months
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/27 • 3 months
Investigations
White blood cell count decreased
2.0%
1/50 • Number of events 1 • 3 months
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/27 • 3 months
Investigations
Aspartate aminotransferase increased
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Investigations
Blood alkaline phosphatase decreased
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Investigations
Blood alkaline phosphatase increased
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Investigations
Blood creatinine increased
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Investigations
Blood urea increased
0.00%
0/50 • 3 months
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/27 • 3 months
Investigations
Eosinophil count decreased
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Investigations
Eosinophil count increased
0.00%
0/50 • 3 months
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/27 • 3 months
Investigations
Neutrophil count decreased
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Investigations
Occult blood positive
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Investigations
Protein urine present
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Investigations
Red blood cell sedimentation rate increased
0.00%
0/50 • 3 months
0.00%
0/50 • 3 months
3.7%
1/27 • Number of events 1 • 3 months
Investigations
Urine analysis abnormal
0.00%
0/50 • 3 months
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/27 • 3 months
Investigations
Urine leukocyte esterase positive
0.00%
0/50 • 3 months
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/27 • 3 months
Investigations
White blood cells urine positive
0.00%
0/50 • 3 months
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/27 • 3 months
Gastrointestinal disorders
Oral disorder
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Infections and infestations
Nasopharyngitis
2.0%
1/50 • Number of events 1 • 3 months
4.0%
2/50 • Number of events 2 • 3 months
3.7%
1/27 • Number of events 1 • 3 months
Infections and infestations
Hepatitis C
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Infections and infestations
Oral herpes
0.00%
0/50 • 3 months
0.00%
0/50 • 3 months
3.7%
1/27 • Number of events 1 • 3 months
Musculoskeletal and connective tissue disorders
Back pain
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Musculoskeletal and connective tissue disorders
Muscle spasms
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Musculoskeletal and connective tissue disorders
Musculoskeletal pain
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Musculoskeletal and connective tissue disorders
Myalgia
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Musculoskeletal and connective tissue disorders
Osteoarthritis
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Musculoskeletal and connective tissue disorders
Pain in extremity
2.0%
1/50 • Number of events 2 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Injury, poisoning and procedural complications
Lip injury
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Injury, poisoning and procedural complications
Road traffic accident
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Injury, poisoning and procedural complications
Skin injury
0.00%
0/50 • 3 months
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/27 • 3 months
General disorders
Adverse drug reaction
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
General disorders
Pyrexia
0.00%
0/50 • 3 months
0.00%
0/50 • 3 months
3.7%
1/27 • Number of events 1 • 3 months
Nervous system disorders
Headache
2.0%
1/50 • Number of events 2 • 3 months
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/27 • 3 months
Reproductive system and breast disorders
Dysmenorrhoea
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Reproductive system and breast disorders
Vaginal discharge
0.00%
0/50 • 3 months
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/27 • 3 months
Respiratory, thoracic and mediastinal disorders
Cough
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Respiratory, thoracic and mediastinal disorders
Nasal congestion
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Endocrine disorders
Hypothyroidism
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Immune system disorders
Seasonal allergy
0.00%
0/50 • 3 months
0.00%
0/50 • 3 months
3.7%
1/27 • Number of events 1 • 3 months
Metabolism and nutrition disorders
Vitamin D deficiency
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/50 • 3 months
0.00%
0/27 • 3 months
Skin and subcutaneous tissue disorders
Urticaria
0.00%
0/50 • 3 months
2.0%
1/50 • Number of events 1 • 3 months
0.00%
0/27 • 3 months

Additional Information

Hatice Hasturk

Forsyth

Phone: 617-892-8499

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place