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HJB647

Phase 1

Elevated Blood Pressure | Small molecule | Cardiovascular |Novartis AG|Last Updated: Jul 22, 2026

Target and mechanism

ModalitySmall molecule

Also known as HJB647 low dose

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment64

FDA Designations

No designations recorded

Clinical trial landscape

HJB647 · 1 trial · 2 indications

Phase 1 1
NCT07644364HJB647 Phase 1b Study in Japanese Healthy Participants With Elevated Blood Pressure and Patients With HypertensionElevated Blood Pressure
RECRUITING64 Analytics
PHASE1RECRUITING
HJB647 Phase 1b Study in Japanese Healthy Participants With Elevated Blood Pressure and Patients With Hypertension
Elevated Blood PressureUnlock trial analytics

Study Endpoints

Primary Endpoints

Part 1: Cmax
Part 1 on Day 1

Cmax: The maximum (peak) observed plasma, blood, serum, or other body fluid drug concentration after single dose administration (mass x volume-1)

Part 1: Tmax
Part 1 on Day 1

Tmax: The time to reach maximum (peak) plasma, blood, serum, or other body fluid drug concentration after single dose administration (time)

Part 1: AUClast
Part 1 on Day 1

AUClast: The AUC from time zero to the last measurable concentration sampling time (tlast) (mass x time x volume-1)

Part 1: AUCinf
Part 1 on Day 1

AUCinf: The AUC from time zero to infinity (mass x time x volume-1)

Part 1: T1/2
Part 1 on Day 1

T1/2: The elimination half-life associated with the terminal slope (λz) of a semi logarithmic concentration-time curve (time). Use qualifier for other half-lives

Part 2: Number of participants with AEs
Up to 51 days

Number of participants with adverse events (AEs) including abnormal vital signs, ECG, and safety laboratory parameters

Secondary Endpoints

Part 1: Number of participants with AEs
Up to 31 days
Part 2: Cmax
Part 2 Day 1, Day 7, Day 8, Day 14, Day 15 and Day 21
Part 2: Tmax
Part 2 Day 1, Day 7, Day 8, Day 14, Day 15 and Day 21
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part 1-1: HJB647 low doseEXPERIMENTALSingle dose Day 1 in Part 1
Part 1-2: HJB647 mid-doseEXPERIMENTALSingle dose Day 1 in Part 1
Part 1-3: HJB647 high doseEXPERIMENTALSingle dose Day 1 in Part 1
Part 1: PlaceboPLACEBO_COMPARATORSingle dose Day 1 in Part 1
Part 2-1: HJB647 multiple oral dosesEXPERIMENTALMultiple oral doses of HJB647 with adaptive up-titration in Part 2
Part 2-2: HJB647 multiple oral doses (optional cohort)EXPERIMENTALMultiple oral doses of HJB647 with adaptive up-titration in Part 2
Part 2-3: HJB647 multiple oral doses (optional cohort)EXPERIMENTALMultiple oral doses of HJB647 with adaptive up-titration in Part 2
Part 2-4: HJB647 multiple oral doses (optional cohort)EXPERIMENTALMultiple oral doses of HJB647 with adaptive up-titration in Part 2
Part 2-5: HJB647 multiple oral doses (optional cohort)EXPERIMENTALMultiple oral doses of HJB647 with adaptive up-titration in Part 2
Part 2: PlaceboPLACEBO_COMPARATORMultiple oral doses of placebo with adaptive up-titration in Part 2

Interventions

NameTypeDescription
HJB647DRUGHJB647 oral capsule
PlaceboDRUGMatching oral placebo
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Eligibility Criteria

Age Range18 Years to 60 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Japanese healthy participants with elevated blood pressure (Part 1) and patients with mild-to-moderate hypertension (Part 2) * Age: 18 to 55 years (Part 1) and 18 to 60 years (Part 2) * Body weight: * Male: ≥ 50.0 kg * Female: ≥ 45.0 kg * Body Mass Index (BMI): 18.0 to 30...

Countries:Japan
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Recent Changes (Last 90 Days)

LOWJul 22, 2026NCT07644364Status: NOT_YET_RECRUITING → RECRUITING
LOWJul 22, 2026NCT07644364Status: NOT_YET_RECRUITING → RECRUITING
LOWJun 12, 2026NCT07644364NEW_TRIAL: changed
LOWJun 12, 2026NCT07644364NEW_TRIAL: changed

Frequently asked questions about HJB647

What is HJB647 used for?

HJB647 is an investigational small molecule being developed for cardiovascular conditions, specifically heart failure with reduced ejection fraction and elevated blood pressure or hypertension. It is currently in Phase 1 clinical development and has not been approved by regulatory authorities.

Who makes HJB647?

HJB647 is being developed by Novartis AG, a multinational pharmaceutical company traded on the New York Stock Exchange under the ticker symbol NVS. The company is conducting early-stage clinical trials to evaluate the drug's safety and tolerability.

What phase is HJB647 in?

HJB647 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved for any use. Two Phase 1 trials are currently recruiting participants to assess safety, tolerability, and related parameters.

What clinical trials is HJB647 in?

HJB647 is being studied in two Phase 1 trials. NCT07465653 is a safety and tolerability study in heart failure patients with reduced ejection fraction, enrolling 12 participants in the United States and Canada. NCT07644364 is a Phase 1b study in Japanese healthy participants and hypertensive patients, enrolling 64 participants.

Is HJB647 the same as HJB647 low dose?

Yes, HJB647 is also known as HJB647 low dose. This alternative name may be used in certain contexts to distinguish a specific dosage strength being evaluated in clinical trials.