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A Prospective Study of B244 Delivered as a Topical Spray to Determine Safety and Efficacy in Subjects With Elevated Blood Pressure

A Prospective, Vehicle Controlled, Double Blinded, Multicenter, Randomized, Phase II Study of B244 Delivered as a Topical Spray to Determine Safety and Efficacy in Subjects With Elevated Blood Pressure

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02998840
Enrollment
132
Registered
2016-12-21
Start date
2016-11-30
Completion date
2017-06-26
Last updated
2022-09-15

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

Conditions

Hypertension, Stage I, Prehypertension

Keywords

elevated blood pressure

Brief summary

The purpose of this study is to evaluate and compare the efficacy of B244 in treating patients with hypertension.

Detailed description

This is a Prospective, Vehicle Controlled, Double Blinded, Multicenter, Randomized Phase II trial, comparing the effect of twice daily B244 application for 4 weeks vs vehicle application on BP and inflammatory biomarkers.

Interventions

BIOLOGICALB244

odorless suspension

BIOLOGICALVehicle

odorless suspension

Sponsors

Veristat, Inc.
CollaboratorOTHER
AOBiome LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

* Male and female subjects ≥18 years of age * In good general health as determined by a thorough medical history and physical examination, and vital signs * Clinical diagnosis of elevated Blood Pressure defined as: * Having systolic prehypertension measurements having systolic BP (mmHg) of 120-139 and Diastolic BP (mmHg) of 90 * OR * Having systolic Stage 1 hypertension measurements having systolic BP (mmHg) of 140-159 and Diastolic BP (mmHg) of 100 * Hypertension treatment naïve patients, defined as those patients who have never been treated with antihypertensive medications or have been off any hypertensive treatment for a period of 12 weeks or longer. * Willing to refrain from using any antihypertensive treatments, other than the investigational product, including herbal supplements, systemic use of steroids, chronic use of NSAIDS, any antihypertensive agents, such as beta-blockers, diuretics, ACE inhibitors, CA channel blockers, Alpha blockers, Central Acting agents and vasodilators. * Ability to comprehend and comply with procedures * Agree to commit to participate in the current protocol * Provide written informed consent prior to any study procedure being performed (all subjects should be able to understand the informed consent form and any other documents that subjects are required to read)

Exclusion criteria

* Pregnant and/or lactating women * Patients on treatment for Benign Prostatic Hyperplasia (BPH) * Clinically significant history of cardiovascular disease (i. e. PCI, CABG MI (if event occurred 12 months), atrial fibrillation, frequent PAC, cardiac rhythm disorder, syncope, valve repair/replacement, heart transplantation, PTA, peripheral bypass surgery, endarterectomy, unstable angina, TIA, stroke and NYHF category II, II and IV heart failure. * Patients with renal failure, significant kidney or renal disease defined as having creatinine level of mg/dL * Presence of any condition (medical, psychological, social, or geographical), actual or anticipated, that the Investigator feels would restrict or limit the patient's successful participation for the duration of the study * History of migraines and/or anxiety, where patient is unable to refrain from the use of beta blockers * History of sensitivity to any of the study medications, or components thereof or a history of drug or other allergy that, in the opinion of the Investigator or Medical Monitor, contraindicates their participation. * The participant has been previously randomized in this study * Subjects with clinical diagnosis of Type I Diabetes * Subjects with arm circumference of 42 cm * Any condition that would prevent the subject from participating in the trial in the opinion of the evaluation physician * The participant has received an investigational product within 30 days prior to randomization * Prior use of any product containing B244 or Nitrosomonas eutropha * Unable to lie flat or sit for 15 minutes * Concurrent participation in other trials

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0Baseline-6 weeksSafety and tolerability endpoints will consist of all treatment related adverse events reporting during the study duration.
Difference in Mean in Clinic Systolic BP Between the Active and Vehicle GroupsBaseline-Week 4Clinical systolic blood pressure (BP) readings were obtained at every visit using a calibrated electronic sphygmomanometer. Three measurements were taken at each visit. The average of the second and third readings was documented. Data was analyzed using mixed-effects model repeated measures (MMRM). Difference was calculated as the change from Baseline to Day 28.

Secondary

MeasureTime frameDescription
Difference in Mean in Clinic Diastolic BP Between the Active and Vehicle GroupBaseline-Week 4Clinical diastolic blood pressure (BP) readings were obtained at every visit using a calibrated electronic sphygmomanometer. Three measurements were taken at each visit. The average of the second and third readings was documented. Data was analyzed using mixed-effects model repeated measures (MMRM). Difference was calculated as the change from Baseline to Day 28.
Difference in Mean Ambulatory Systolic and Diastolic Daytime Blood PressureBaseline-Week 4An ambulatory blood pressure measurement (ABPM) device was placed on a subject's arm during the clinic visit to record 24-hour blood pressure and heart rate measurements.

Other

MeasureTime frameDescription
Microbial ContentBaseline, Day 28, Day 42Evaluate if B244 administration on skin twice daily will affect the microbial content on collected skin swab samples.
Microbial CompositionBaseline, Day 28, Day 42Evaluate if B244 administration on skin twice daily will affect the microbial composition on collected skin samples.
Difference in Inflammatory Biomarkers Between Active and Vehicle GroupsBaseline-Week 4To evaluate if B244 administration on the skin twice daily will affect the levels of immune biomarkers.

Countries

United States

Participant flow

Participants by arm

ArmCount
B244 4 Pumps Applied to the Face
4 pumps total of spray to saturate the entire face. Applications should occur in the morning and at night for 4 weeks. B244: odorless suspension, 8x10E9 cells/mL
33
B 244 8 Pumps Applied to Face and Torso
8 pumps total - 4 pumps of spray to saturate the entire face and 4 pumps to the torso Applications should occur in the morning and at night for 4 weeks. B244: odorless suspension, 8x10E9 cells/mL
33
Vehicle 4 Pumps Applied to the Face
4 pumps total of spray to saturate the entire face. Applications should occur in the morning and at night for 4 weeks. Vehicle: odorless suspension
33
Vehicle 8 Pumps Applied to Face and Torso
8 pumps total - 4 pumps of spray to saturate the entire face and 4 pumps to the torso Applications should occur in the morning and at night for 4 weeks. Vehicle: odorless suspension
33
Total132

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyLost to Follow-up1123
Overall StudyUnplanned travel, family emergency, sponsor request, work schedule2101
Overall StudyWithdrawal by Subject1101

Baseline characteristics

CharacteristicTotalVehicle 8 Pumps Applied to Face and TorsoB244 4 Pumps Applied to the FaceVehicle 4 Pumps Applied to the FaceB 244 8 Pumps Applied to Face and Torso
Age, Customized
<60 years
100 Participants27 Participants25 Participants25 Participants23 Participants
Age, Customized
≥60 years
32 Participants6 Participants8 Participants8 Participants10 Participants
BMI30.044 kg/m^2
STANDARD_DEVIATION 5.7332
30.304 kg/m^2
STANDARD_DEVIATION 6.3886
30.139 kg/m^2
STANDARD_DEVIATION 6.2438
29.306 kg/m^2
STANDARD_DEVIATION 4.3707
30.427 kg/m^2
STANDARD_DEVIATION 5.9047
BMI Category
<30 kg/m^2
77 Participants22 Participants19 Participants20 Participants16 Participants
BMI Category
≥30 kg/m^2
55 Participants11 Participants14 Participants13 Participants17 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
38 Participants12 Participants9 Participants11 Participants6 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
94 Participants21 Participants24 Participants22 Participants27 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
Asian
2 Participants1 Participants0 Participants1 Participants0 Participants
Race (NIH/OMB)
Black or African American
36 Participants9 Participants8 Participants6 Participants13 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants1 Participants1 Participants0 Participants0 Participants
Race (NIH/OMB)
White
90 Participants22 Participants23 Participants26 Participants19 Participants
Sex: Female, Male
Female
62 Participants17 Participants15 Participants13 Participants17 Participants
Sex: Female, Male
Male
70 Participants16 Participants18 Participants20 Participants16 Participants
Smoking History
Current
28 Participants11 Participants8 Participants5 Participants4 Participants
Smoking History
Former
22 Participants3 Participants6 Participants6 Participants7 Participants
Smoking History
Never
82 Participants19 Participants19 Participants22 Participants22 Participants
Weight88.38 kg
STANDARD_DEVIATION 18.654
88.59 kg
STANDARD_DEVIATION 18.871
89.32 kg
STANDARD_DEVIATION 21.084
86.56 kg
STANDARD_DEVIATION 12.251
89.04 kg
STANDARD_DEVIATION 21.654

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 330 / 330 / 66
other
Total, other adverse events
4 / 336 / 3311 / 66
serious
Total, serious adverse events
0 / 331 / 330 / 66

Outcome results

Primary

Difference in Mean in Clinic Systolic BP Between the Active and Vehicle Groups

Clinical systolic blood pressure (BP) readings were obtained at every visit using a calibrated electronic sphygmomanometer. Three measurements were taken at each visit. The average of the second and third readings was documented. Data was analyzed using mixed-effects model repeated measures (MMRM). Difference was calculated as the change from Baseline to Day 28.

Time frame: Baseline-Week 4

Population: Subjects from the Intent to Treat (ITT) population (all randomized subjects, analyzed according to treatment assigned) that remained in the study at Week 4.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
B244 4 Pumps Applied to the FaceDifference in Mean in Clinic Systolic BP Between the Active and Vehicle Groups-2.61 mmHgStandard Deviation 1.828
B 244 8 Pumps Applied to Face and TorsoDifference in Mean in Clinic Systolic BP Between the Active and Vehicle Groups-0.66 mmHgStandard Deviation 1.834
Pooled Vehicle 4 or 8 Pumps Applied to the Face (and Torso for 8 Pumps)Difference in Mean in Clinic Systolic BP Between the Active and Vehicle Groups-2.93 mmHgStandard Deviation 1.296
Primary

Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0

Safety and tolerability endpoints will consist of all treatment related adverse events reporting during the study duration.

Time frame: Baseline-6 weeks

Population: Safety Population: All subjects who received at least 1 dose of study medication. Subjects were to be analyzed according to the study drug received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
B244 4 Pumps Applied to the FaceNumber of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0At Least 1 Treatment Related TEAE1 Participants
B244 4 Pumps Applied to the FaceNumber of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0At Least 1 Treatment Related Serious TEAE0 Participants
B 244 8 Pumps Applied to Face and TorsoNumber of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0At Least 1 Treatment Related TEAE1 Participants
B 244 8 Pumps Applied to Face and TorsoNumber of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0At Least 1 Treatment Related Serious TEAE0 Participants
Pooled Vehicle 4 or 8 Pumps Applied to the Face (and Torso for 8 Pumps)Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0At Least 1 Treatment Related Serious TEAE0 Participants
Pooled Vehicle 4 or 8 Pumps Applied to the Face (and Torso for 8 Pumps)Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0At Least 1 Treatment Related TEAE4 Participants
Secondary

Difference in Mean Ambulatory Systolic and Diastolic Daytime Blood Pressure

An ambulatory blood pressure measurement (ABPM) device was placed on a subject's arm during the clinic visit to record 24-hour blood pressure and heart rate measurements.

Time frame: Baseline-Week 4

Population: Ambulatory Blood Pressure Monitoring Population (ABPP): Subjects in the Safety Population who had valid baseline and Day 28 ambulatory BP monitoring (ABPM) measurements. Subjects who repeated the ABPM were to be included in the population if the repeated assessment met the device monitor's criteria for passing.

ArmMeasureGroupValue (MEAN)Dispersion
B244 4 Pumps Applied to the FaceDifference in Mean Ambulatory Systolic and Diastolic Daytime Blood PressureSystolic Blood Pressure-3.06 mmHgStandard Deviation 9.388
B244 4 Pumps Applied to the FaceDifference in Mean Ambulatory Systolic and Diastolic Daytime Blood PressureDiastolic Blood Pressure-2.17 mmHgStandard Deviation 5.327
B 244 8 Pumps Applied to Face and TorsoDifference in Mean Ambulatory Systolic and Diastolic Daytime Blood PressureSystolic Blood Pressure-0.21 mmHgStandard Deviation 12.25
B 244 8 Pumps Applied to Face and TorsoDifference in Mean Ambulatory Systolic and Diastolic Daytime Blood PressureDiastolic Blood Pressure-0.82 mmHgStandard Deviation 7.325
Pooled Vehicle 4 or 8 Pumps Applied to the Face (and Torso for 8 Pumps)Difference in Mean Ambulatory Systolic and Diastolic Daytime Blood PressureDiastolic Blood Pressure-0.98 mmHgStandard Deviation 5.911
Pooled Vehicle 4 or 8 Pumps Applied to the Face (and Torso for 8 Pumps)Difference in Mean Ambulatory Systolic and Diastolic Daytime Blood PressureSystolic Blood Pressure-0.53 mmHgStandard Deviation 7.619
Secondary

Difference in Mean in Clinic Diastolic BP Between the Active and Vehicle Group

Clinical diastolic blood pressure (BP) readings were obtained at every visit using a calibrated electronic sphygmomanometer. Three measurements were taken at each visit. The average of the second and third readings was documented. Data was analyzed using mixed-effects model repeated measures (MMRM). Difference was calculated as the change from Baseline to Day 28.

Time frame: Baseline-Week 4

Population: Subjects from the Intent to Treat (ITT) population (all randomized subjects, analyzed according to treatment assigned) that remained in the study at Week 4.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
B244 4 Pumps Applied to the FaceDifference in Mean in Clinic Diastolic BP Between the Active and Vehicle Group-1.65 mmHgStandard Deviation 1.377
B 244 8 Pumps Applied to Face and TorsoDifference in Mean in Clinic Diastolic BP Between the Active and Vehicle Group-2.25 mmHgStandard Deviation 1.358
Pooled Vehicle 4 or 8 Pumps Applied to the Face (and Torso for 8 Pumps)Difference in Mean in Clinic Diastolic BP Between the Active and Vehicle Group-1.31 mmHgStandard Deviation 0.975
Other Pre-specified

Difference in Inflammatory Biomarkers Between Active and Vehicle Groups

To evaluate if B244 administration on the skin twice daily will affect the levels of immune biomarkers.

Time frame: Baseline-Week 4

Population: Intent to Treat Population (ITT): All randomized subjects, analyzed according to treatment assigned.

ArmMeasureValue (MEAN)
B244 4 Pumps Applied to the FaceDifference in Inflammatory Biomarkers Between Active and Vehicle GroupsNA units on a scale
B 244 8 Pumps Applied to Face and TorsoDifference in Inflammatory Biomarkers Between Active and Vehicle GroupsNA units on a scale
Pooled Vehicle 4 or 8 Pumps Applied to the Face (and Torso for 8 Pumps)Difference in Inflammatory Biomarkers Between Active and Vehicle GroupsNA units on a scale
Other Pre-specified

Microbial Composition

Evaluate if B244 administration on skin twice daily will affect the microbial composition on collected skin samples.

Time frame: Baseline, Day 28, Day 42

Population: Data was not collected for this exploratory endpoint.

Other Pre-specified

Microbial Content

Evaluate if B244 administration on skin twice daily will affect the microbial content on collected skin swab samples.

Time frame: Baseline, Day 28, Day 42

Population: Data was not collected for this exploratory endpoint.

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