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Serelaxin

Phase 2

Acute Heart Failure | Small molecule | Cardiovascular |Novartis AG|Last Updated: Dec 21, 2020

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment46

FDA Designations

No designations recorded

Clinical trial landscape

Serelaxin · 5 trials · 7 indications

Phase 2 4Phase 1 1
NCT02669875Serelaxin To Lower Portal PressureLiver Cirrhosis
COMPLETED15 Analytics
NCT01979614Study of the Vascular Effects of SerelaxinCoronary Artery Disease
COMPLETED58 Analytics
NCT02002702Study of Safety, Tolerability and Pharmacokinetics of Serelaxin in Japanese Acute Heart Failure (AHF) PatientsAcute Heart Failure
COMPLETED46 Analytics
NCT00259103Recombinant Human Relaxin (rhRlx) in Pregnant Women Scheduled for Induction of LaborLabor, Induced
COMPLETED72 Analytics
PHASE2COMPLETED
Serelaxin To Lower Portal Pressure
Liver CirrhosisUnlock trial analytics
PHASE2COMPLETED
Study of the Vascular Effects of Serelaxin
Coronary Artery DiseaseUnlock trial analytics
PHASE2COMPLETED
Study of Safety, Tolerability and Pharmacokinetics of Serelaxin in Japanese Acute Heart Failure (AHF) Patients
Acute Heart FailureUnlock trial analytics
PHASE2COMPLETED
Recombinant Human Relaxin (rhRlx) in Pregnant Women Scheduled for Induction of Labor
Labor, InducedUnlock trial analytics

Study Endpoints

Primary Endpoints

Change from baseline in fasting hepatic venous pressure gradient (HVPG)
Baseline, after 2 hours
Statistical Analysis of Change From Baseline to Day 3 in Myocardial Perfusion Endpoints Compared With Mid Perfusion Reserve Index Using ANCOVA End Points
baseline to Day 3

Global MPRI (Myocardial Perfusion Reserve Index) is defined as ratio between mean global myocardial blood flow values at rest and during adenosine stress with Mid Perfusion Reserve Index or Midl PRI (Mid Perfusion Reserve Index) which is defined as ratio between mid myocardial blood flow values at rest and during adenosine stress

Number of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs and SAEs, AEs Requiring Dose Adjustment or Interruption and Additional Therapy
From start of study treatment up to Day 5 (for AEs); From start of study treatment up to Day 14 (for SAEs)

AEs were defined as any unfavorable and unintended diagnosis, symptom, sign (including an abnormal laboratory finding), syndrome or disease which either occurs during study, having been absent at baseline, or, if present at baseline, appears to worsen. SAEs were defined as any untoward medical occurrences that result in death, are life threatening, require (or prolong) hospitalization, cause persistent or significant disability/incapacity, result in congenital anomalies or birth defects, or are other conditions which in judgement of investigators represent significant hazards. AEs leading to discontinuations, or requiring dose adjustment or interruptions and additional therapy were assessed.

Maximum Plasma Concentration (Cmax) of Serelaxin
Baseline (pre-dose), 1, 2, 24, 48, 49, 52 and 56 hours (post-dose)

Maximum plasma concentration (Cmax) was defined as the peak level of serelaxin, derived from plasma concentration-time data, using a non-compartmental model approach.

Weight Adjusted Clearance (CL) of Serelaxin
Baseline (pre-dose), 1, 2, 24, 48, 49, 52 and 56 hours (post-dose)

Weight adjusted clearance (CL) was defined as the total body clearance of serelaxin after drug administration. CL was calculated as nominal infusion rate divided by Css, using a non-compartmental model approach.

Concentration at Steady-state (Css) of Serelaxin
Baseline (pre-dose), 1, 2, 24, 48, 49, 52 and 56 hours (post-dose)

Concentration at steady-state (Css) was defined as concentration at the state of equilibrium obtained at the end of a certain number of administrations. Css of serelaxin in plasma was calculated by using a non-compartmental model approach.

Cervical ripening
Through 24 hours
Area under the serum concentration-time curve from time zero to the time of the last quantifiable concentration (AUClast)
pre-treatment, 15 min, 1, 2, 3, 4, 4:15, 5, 6, 7, 8, 9, 10, 12, 24, 28, 36, 48 hours and day 15

Blood samples will be collected on days 1 through 3 and then on Day 15 for the determination of serum concentrations of serelaxin

The area under the serum concentration-time curve from time zero to 28 hours after administration (AUC 0-28hr)
pre-treatment, 15 min, 1, 2, 3, 4, 4:15, 5, 6, 7, 8, 9, 10, 12, 24, 28, 36, 48 hours and day 15

Blood samples will be collected on days 1 through 3 and then on Day 15 for the determination of serum concentrations of serelaxin

The area under the serum concentration-time curve from time zero to infinity (AUCinf)
pre-treatment, 15 min, 1, 2, 3, 4, 4:15, 5, 6, 7, 8, 9, 10, 12, 24, 28, 36, 48 hours and day 15

Blood samples will be collected on days 1 through 3 and then on Day 15 for the determination of serum concentrations of serelaxin

The observed maximum serum concentration following drug administration (Cmax)
pre-treatment, 15 min, 1, 2, 3, 4, 4:15, 5, 6, 7, 8, 9, 10, 12, 24, 28, 36, 48 hours and day 15

Blood samples will be collected on days 1 through 3 and then on Day 15 for the determination of serum concentrations of serelaxin

Secondary Endpoints

Change from baseline in fasting hepatic venous pressure gradient (HVPG)
Baseline, after 1 hour
Change from baseline in fasting hepatic blood flow
Baseline, after 2 hours
Change from baseline in inferior vena cava pressure
Baseline, after 2 hours
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
SerelaxinACTIVE_COMPARATORIV infusion of serelaxin (RLX030) for 2 hours
PlaceboPLACEBO_COMPARATORIV infusion of placebo (20mM sodium acetate pH5) matched to serelaxin for 2 hours
Serelaxin 10 mcg/kg/DayEXPERIMENTALParticipants received 10 mcg/kg/day serelaxin as continuous i.v. infusion for 48 hours.
Serelaxin 30 mcg/kg/DayEXPERIMENTALParticipants received 30 mcg/kg/day serelaxin as continuous i.v. infusion for 48 hours.
7.5 µg/kg/dEXPERIMENTALParticipants who received intravenous (IV) infusion of 7.5 µg/kg/d serelaxin, all during part A.
25 µg/kg/dEXPERIMENTALParticipants who received intravenous (IV) infusion of 25 µg/kg/d serelaxin, all during part A.
75 µg/kg/dEXPERIMENTALParticipants who received IV infusion of 75 µg/kg/d serelaxin, some during part A and others during part B.
Group 1 Treatment with serelaxinEXPERIMENTALPatients with severe renal impairment will receive a single 4 hour i.v. infusion of serelaxin
Group 2 Treatment with serelaxinEXPERIMENTALPatients with end stage renal disease will receive a single 4 hour i.v. infusion of serelaxin and dialysis will be done on the day of treatment
Group 3 Treatment with serelaxinEXPERIMENTALPatients with end stage renal disease will receive a single 4 hour i.v. infusion of serelaxin and treatment and PK will be done in dialysis-free interval
Group 4 Treatment with serelaxinEXPERIMENTALHealthy volunteers will receive a single 4 hour i.v. infusion of serelaxin and dialysis will be done on the day of treatment

Interventions

NameTypeDescription
SerelaxinDRUGSerelaxin solution diluted in 5% glucose volume/volume (v/v) solution
PlaceboDRUGPlacebo solution (20mM sodium acetate pH5) diluted in 5% v/v glucose solution
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Male or female adult subjects over 18 years of age 2. Able to provide written informed consent and able to understand and willing to comply with the requirements of the study 3. Clinical imaging-diagnosed or biopsy-proven liver cirrhosis of any aetiology 4. Evidence of portal...

Countries:United KingdomJapanRussiaGermany
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Frequently asked questions about Serelaxin

What is Serelaxin used for?

Serelaxin is an investigational small molecule being studied for cardiovascular and other conditions, including acute heart failure, coronary artery disease, induced labor, chronic renal failure, and liver cirrhosis. It is developed by Novartis AG and is currently in Phase 2 clinical development.

What does Serelaxin target?

Serelaxin is a recombinant form of the human relaxin-2 hormone. It works by binding to the relaxin family peptide receptor 1 (RXFP1), which mediates its effects on vasodilation and organ protection. This mechanism is being studied for potential benefits in conditions like acute heart failure.

Who makes Serelaxin?

Serelaxin is developed by Novartis AG, a multinational pharmaceutical company listed on the New York Stock Exchange under the ticker NVS. Novartis is conducting clinical trials to evaluate the drug's safety and efficacy across multiple indications.

What phase is Serelaxin in?

Serelaxin is in Phase 2 clinical development. It has completed several Phase 1 and Phase 2 trials, but it is not yet approved by regulatory authorities. The drug remains investigational, and further studies are needed to establish its safety and efficacy.

What clinical trials is Serelaxin in?

Serelaxin has been studied in several completed trials, including NCT00259103 for induced labor, NCT01875523 for renal impairment, NCT01979614 for coronary artery disease, and NCT02002702 for acute heart failure. These trials have evaluated the drug's pharmacokinetics, safety, and vascular effects.

Is Serelaxin the same as relaxin?

Serelaxin is a recombinant form of human relaxin-2, a naturally occurring hormone. While it is related to relaxin, Serelaxin is a specific pharmaceutical compound developed by Novartis for therapeutic use. It is not identical to endogenous relaxin but mimics its biological activity.