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A Study of CIN-107 in Adults With Treatment-Resistant Hypertension (rHTN)

A Randomized, Double-Blind, Placebo-Controlled, Multicenter, Parallel-Group, Dose-Ranging Study to Evaluate the Efficacy and Safety of Multiple Dose Strengths of CIN-107 as Compared to Placebo After 12 Weeks of Treatment in Patients With Treatment-Resistant Hypertension (rHTN)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04519658
Acronym
BrigHTN
Enrollment
275
Registered
2020-08-20
Start date
2020-10-12
Completion date
2022-06-14
Last updated
2023-07-24

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

Conditions

Resistant Hypertension

Brief summary

This is a randomized, double-blind, placebo-controlled, dose-ranging Phase 2 study to evaluate the efficacy and safety of CIN-107 as compared to placebo after 12 weeks of treatment in patients with treatment-resistant hypertension (rHTN).

Interventions

CIN-107 tablets by mouth once daily

DRUGPlacebo

placebo tablets by mouth once daily

Sponsors

CinCor Pharma, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Is on a stable regimen of ≥ 3 antihypertensive agents (one of which is a diuretic) for at least 4 weeks prior to randomization; * Be at least 70% compliant to their anti-hypertensive medication regimen; * Has a seated BP ≥ 130/80 mmHg; * Agrees to comply with the contraception and reproduction restrictions of the study; and * Able to understand and willing to comply with all study visits, procedures, restrictions, and provide written informed consent according to institutional and regulatory guidelines.

Exclusion criteria

* Has a seated SBP ≥ 180 mmHg or DBP ≥ 110 mmHg; * Has a body mass index (BMI) \> 40 kg/m2; * Has an upper arm circumference \< 7 or \> 17 inches; * Has been on night shifts at any time during the 4 weeks before Screening; * Is using a beta blocker for any primary indication other than systemic hypertension (eg, migraine headache); * Is not willing or not able to discontinue an MRA or a potassium sparing diuretic as part of an existing antihypertensive regimen; * Is not willing or not able to discontinue taking a potassium supplement; * Has documented estimated glomerular filtration rate (eGFR) \< 45 mL/min/1.73m2 * Has known and documented New York Heart Association stage III or IV chronic heart failure * Has had a stroke, transient ischemic attack, hypertensive encephalopathy, acute coronary syndrome, or hospitalization for heart failure within 6 months before Screening; * Has known current severe left ventricular outflow obstruction, such as obstructive hypertrophic cardiomyopathy and/or severe aortic valvular disease diagnosed from a prior echocardiogram; * Major cardiac surgery (eg, CABG, valve replacement), peripheral arterial bypass surgery, or PCI within 6 months before Screening; * Has chronic permanent atrial fibrillation; * Has uncontrolled diabetes with glycosylated hemoglobin \> 9.5% at Screening; * Has planned dialysis or kidney transplant during the course of this study; * Potassium \< 3.5 mEq/L; * Potassium \> 5.0 mEq/L; * Is positive for HIV antibody, hepatitis C virus RNA, or hepatitis B surface antigen; * Has typical consumption of ≥14 alcoholic drinks weekly.

Design outcomes

Primary

MeasureTime frame
Change From Baseline in Mean Seated Systolic BP (SBP)12 weeks

Secondary

MeasureTime frame
Change From Baseline in Mean Seated Diastolic BP (DBP)12 weeks
The Percentage of Patients Achieving a Seated BP Response <130/80 mmHg12 weeks

Countries

United States

Participant flow

Pre-assignment details

There was a 2-week Single Blind Run-In (SB-RI) period with administration of placebo before inclusion in the double-blind, randomized part of the study. 360 patients entered SB-RI and 85 patients withdrew early from SB-RI. 275 patients were randomized to 1 of the 4 treatment groups.

Participants by arm

ArmCount
CIN-107 Dose 1 (0.5mg)
CIN-107: CIN-107 tablets by mouth once daily
69
CIN-107 Dose 2 (1mg)
CIN-107: CIN-107 tablets by mouth once daily
70
CIN-107 Dose 3 (2mg)
CIN-107: CIN-107 tablets by mouth once daily
67
Placebo
Placebo: placebo tablets by mouth once daily
69
Total275

Baseline characteristics

CharacteristicCIN-107 Dose 1 (0.5mg)CIN-107 Dose 2 (1mg)CIN-107 Dose 3 (2mg)PlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
30 Participants31 Participants26 Participants37 Participants124 Participants
Age, Categorical
Between 18 and 65 years
39 Participants39 Participants41 Participants32 Participants151 Participants
Age, Continuous61.5 Years
STANDARD_DEVIATION 10.28
62.7 Years
STANDARD_DEVIATION 10.14
61.2 Years
STANDARD_DEVIATION 10.77
63.8 Years
STANDARD_DEVIATION 10.78
62.3 Years
STANDARD_DEVIATION 10.48
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Asian
1 Participants2 Participants1 Participants2 Participants6 Participants
Race (NIH/OMB)
Black or African American
22 Participants20 Participants19 Participants16 Participants77 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
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
45 Participants48 Participants47 Participants51 Participants191 Participants
Region of Enrollment
United States
69 participants70 participants67 participants69 participants275 participants
Seated SBP147.6 mmHg
STANDARD_DEVIATION 12.49
147.7 mmHg
STANDARD_DEVIATION 13.05
147.3 mmHg
STANDARD_DEVIATION 11.82
148.9 mmHg
STANDARD_DEVIATION 12.38
147.9 mmHg
STANDARD_DEVIATION 12.4
Sex: Female, Male
Female
33 Participants33 Participants29 Participants27 Participants122 Participants
Sex: Female, Male
Male
36 Participants37 Participants38 Participants42 Participants153 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 690 / 690 / 670 / 69
other
Total, other adverse events
6 / 6916 / 698 / 6710 / 69
serious
Total, serious adverse events
0 / 692 / 696 / 672 / 69

Outcome results

Primary

Change From Baseline in Mean Seated Systolic BP (SBP)

Time frame: 12 weeks

Population: Only patients with non-missing baseline and the specified visit were included.

ArmMeasureValue (MEAN)Dispersion
mITT Population 0.5mgChange From Baseline in Mean Seated Systolic BP (SBP)-12.4 mmHgStandard Deviation 15.63
mITT Population 1mgChange From Baseline in Mean Seated Systolic BP (SBP)-17.3 mmHgStandard Deviation 18.1
mITT Population 2mgChange From Baseline in Mean Seated Systolic BP (SBP)-19.2 mmHgStandard Deviation 15.84
mITT Population PlaceboChange From Baseline in Mean Seated Systolic BP (SBP)-9.8 mmHgStandard Deviation 13.71
Secondary

Change From Baseline in Mean Seated Diastolic BP (DBP)

Time frame: 12 weeks

Population: Only patients with non-missing baseline and the specified visit were included.

ArmMeasureValue (MEAN)Dispersion
mITT Population 0.5mgChange From Baseline in Mean Seated Diastolic BP (DBP)-9.1 mmHgStandard Deviation 9.04
mITT Population 1mgChange From Baseline in Mean Seated Diastolic BP (DBP)-11.7 mmHgStandard Deviation 9.88
mITT Population 2mgChange From Baseline in Mean Seated Diastolic BP (DBP)-14.0 mmHgStandard Deviation 12.42
mITT Population PlaceboChange From Baseline in Mean Seated Diastolic BP (DBP)-9.3 mmHgStandard Deviation 9.6
Secondary

The Percentage of Patients Achieving a Seated BP Response <130/80 mmHg

Time frame: 12 weeks

Population: The modified ITT (mITT) Population included all patients in the ITT Population who received at least 1 dose of any study drug and had a baseline value for the SBP assessment. Any efficacy measurement obtained after a patient received a restricted BP altering therapy, outside of the current study design, was removed from the mITT analysis.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
mITT Population 0.5mgThe Percentage of Patients Achieving a Seated BP Response <130/80 mmHg21 Participants
mITT Population 1mgThe Percentage of Patients Achieving a Seated BP Response <130/80 mmHg28 Participants
mITT Population 2mgThe Percentage of Patients Achieving a Seated BP Response <130/80 mmHg26 Participants
mITT Population PlaceboThe Percentage of Patients Achieving a Seated BP Response <130/80 mmHg21 Participants

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026