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RLX030

Phase 3

Acute Heart Failure | Small molecule | Cardiovascular |Novartis AG|Last Updated: Dec 19, 2020

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials2
Total Enrollment6,671

FDA Designations

No designations recorded

Clinical trial landscape

RLX030 · 4 trials · 3 indications

Phase 3 1Phase 2 3
NCT01870778Efficacy, Safety and Tolerability of Serelaxin When Added to Standard Therapy in AHFAcute Heart Failure
COMPLETED6,600 Analytics
PHASE3COMPLETED
Efficacy, Safety and Tolerability of Serelaxin When Added to Standard Therapy in AHF
Acute Heart FailureUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants With Confirmed Cardiovascular (CV) Death Through Day 180
180 days

The percentage of participants with an adjudicated CV death through day 180 was assessed.

Percentage of Participants With Worsening of Heart Failure (WHF) Through Day 5
Day 5

The percentage of participants with WHF through day 5 was assessed.

Percentage of Participants With Chronic Heart Failure (CHF) Who Develop Anti-serelaxin Antibodies at Any Time Following Repeat Administration of IV Continuous Infusions of Serelaxin Administered for up to 48 Hours in 16 Weeks
16 weeks

A patient is considered antibody positive during the study if he/she had at least two infusions and had at least one evaluable measurement to test for anti-serelaxin antibodies after each infusion and all evaluable antibody test results were positive. A patient is considered antibody negative during the study if he/she had at least two infusions and had at least one evaluable measurement to test for anti-serelaxin antibodies after each infusion and all evaluable antibody test results were negative. A patient's antibody status is considered to be undetermined during the study if it is not defined as positive or negative.

Peak change from baseline of PCWP (pulmonary capillary wedge pressure)
baseline, after 8 and 20 hrs treatment

Measurements will be made using a Swan-Ganz indwelling catheter

Peak change from baseline of CI (cardiac index)
baseline, after 8 and 20 hrs treatment

Measurements will be made using a Swan-Ganz indwelling catheter

Change from baseline in renal plasma flow (RPF) measured by Para-aminohippuric acid (PAH) clearance in subjects with CHF after 24 hours intravenous (i.v) infusion of RLX030
Baseline, during and after the end of 24 hours infusion

Serial blood and urine collections over time for determination of PAH and its clearance respectively

Change from baseline in glomerular filtration rate (GFR) as measured by Iothalamate (IOTH) clearance in subjects with CHF after 24 hours i.v. infusion of RLX030
Baseline, during and after the end of 24 hours infusion

Serial blood and urine collections over time for determination of IOTH and its clearance respectively

Secondary Endpoints

Percentage of Participants With All-cause Death Through Day 180
180 days
Length of Total Hospital Stay (LOS) During the Index Acute Heart Failure (AHF) Hospitalization
180 days (Participants still in the hospital at Day 60 were censored at Day 60)
Percentage of Participants With First Occurrence of Adjudicated CV Death or Adjudicated Re-hospitalization
180 days
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Serelaxin (RLX030)EXPERIMENTALParticipants received continuous intravenous infusion of serelaxin 30 ug/kg/day for 48 hours.
PlaceboPLACEBO_COMPARATORParticipants received continuous intravenous infusion of matching placebo to serelaxin for 48 hours.
RLX030 (serelaxin)EXPERIMENTALRandomized patients received an IV infusion of 30 μg/kg/day of serelaxin for 48 hours at randomization and at Weeks 4 and 8
RLX030EXPERIMENTALRLX030 as intravenous infusion for 20 hours

Interventions

NameTypeDescription
RLX030DRUG1 mg/mL solution in 6 mL vials
PlaceboDRUGMatching placebo solution to serelaxin
RLX030 (serelaxin)DRUGRLX030 (serelaxin) was administered according to a weight-range adjusted dosing regimen at a nominal dose of 30 μg/kg/day as a continuous IV infusion for 48 hours.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites540

Key Inclusion Criteria: * Male or female 18 years of age, with body weight ≤160 kg * Hospitalized for AHF with anticipated requirement of IV therapy for at least 48 hours; AHF is defined as including all of the following measured at any time between presentation (including the emergency department)...

Countries:United StatesArgentinaAustraliaAustriaBelgiumBrazilBulgariaCanadaChileColombiaCzechiaDenmarkFranceGermanyGreeceHungaryIrelandIsraelItalyMexicoNetherlandsNorwayPeruPolandPortugalPuerto RicoRomaniaRussiaSlovakiaSouth AfricaSpainSwedenSwitzerlandTurkey (Türkiye)United KingdomFinland
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Frequently asked questions about RLX030

What is RLX030 used for?

RLX030, also known as serelaxin, is an investigational small molecule being developed for cardiovascular conditions, specifically acute heart failure and chronic heart failure. It is administered intravenously and has been studied in clinical trials for its effects on hemodynamics and renal function in heart failure patients.

What does RLX030 target?

RLX030 is a recombinant form of the hormone relaxin-2. It works by binding to relaxin family peptide receptors, which leads to vasodilation, increased cardiac output, and improved renal perfusion. These effects are being investigated as potential treatments for acute and chronic heart failure.

Who makes RLX030?

RLX030 is being developed by Novartis AG, a multinational pharmaceutical company headquartered in Basel, Switzerland. Novartis trades on the New York Stock Exchange under the ticker symbol NVS. The drug is an investigational therapy and has not been approved by regulatory authorities.

What phase is RLX030 in?

RLX030 has completed Phase 3 clinical trials for acute heart failure. The most advanced study, NCT01870778, enrolled 6,600 participants and evaluated the efficacy, safety, and tolerability of serelaxin when added to standard therapy. The drug remains investigational and is not yet approved for any indication.

What clinical trials is RLX030 in?

RLX030 has been studied in four completed clinical trials. These include NCT01543854 and NCT01546532, which examined hemodynamic effects in acute and chronic heart failure, NCT01870778, a large Phase 3 efficacy trial in acute heart failure, and NCT01982292, which assessed the safety of repeat doses in chronic heart failure.

Is RLX030 the same as serelaxin?

Yes, RLX030 is also known as serelaxin. The drug is a recombinant form of the human hormone relaxin-2 and has been investigated under both names in clinical trials for heart failure. Novartis is the developer of this investigational therapy.