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Clevidipine vs Placebo or Standard of Care for Dyspnea and Blood Pressure Control in AHF (PRONTO II)

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The Medicines Company

Status and phase

Withdrawn
Phase 3

Conditions

Hypertension
Dyspnea
Acute Heart Failure

Treatments

Drug: Stage 2: Standard of Care (open-label)
Drug: Stage 1: Placebo (double-blinded)
Drug: Stage 2: Clevidipine (open-label)
Drug: Stage 1: Clevidipine (double-blinded)

Study type

Interventional

Funder types

Industry

Identifiers

NCT04592380
PRONTO II (Other Identifier)
MDCO-CLV-13-03

Details and patient eligibility

About

The purpose of this study is to evaluate dyspnea improvement and other parameters of efficacy and safety in acute heart failure (AHF) patients receiving an intravenous (IV) infusion of clevidipine in comparison to standard of care (SOC) and placebo.

Full description

Randomization will occur in two stages. Stage 1 patients will be randomized in a double-blinded manner in a 1:1 ratio to receive either clevidipine or placebo IV infusion. Upon completion of Stage 1, Stage 2 patients will be randomized in an open-label manner in a 1:1 ratio to receive either clevidipine or standard of care (SOC) IV infusion. At the time of randomization, a patient-specific, prespecified systolic blood pressure (SBP) target range will be determined and recorded prior to study drug treatment. Up to 500 patients may be enrolled to achieve a total of 100 Stage 1 and 300 Stage 2 patients with confirmed AHF per protocol.

A Data Safety Monitoring Board will be utilized periodically throughout the study to monitor the safety of patients. Adverse events will be assessed for 7 days post-study randomization or hospital discharge, whichever occurred sooner. Serious adverse events (SAEs) were assessed for 30 days following study randomization.

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Age 18 years or older and providing
  • Presentation consistent with AHF as manifest by pulmonary congestion
  • Dyspnea score (sitting) ≥ 50 mm on a 100 mm visual analog scale
  • In Stage 1, baseline SBP ≥130 - 160 mmHg (measured immediately prior to initiation of study drug); in Stage 2, baseline SBP ≥ 130 mmHg

Exclusion criteria

  • Administration of an IV or oral antihypertensive agent within the previous 2 hours of randomization (short acting oral or sublingual nitrates are permitted)
  • Chest pain and/or electrocardiogram (ECG) with ST segment changes consistent with acute coronary syndrome
  • Known or suspected aortic dissection
  • Acute myocardial infarction (AMI) within the prior 14 days
  • Dialysis-dependent renal failure
  • Requirement for immediate endotracheal intubation
  • Suspected pregnancy or breast feeding female
  • Intolerance or allergy to calcium channel blockers
  • Allergy to soybean oil or lecithin
  • Known liver failure, cirrhosis or pancreatitis
  • Participation in other clinical research studies involving the evaluation of other investigational drugs or devices within 30 days of enrollment

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Factorial Assignment

Masking

Double Blind

0 participants in 4 patient groups, including a placebo group

Stage 1: Clevidipine (double-blinded)
Experimental group
Description:
Clevidipine (0.5 mg/mL in 20% lipid emulsion) will be administered in a double-blinded fashion intravenously to all patients randomized to the clevidipine arm in Stage 1. Clevidipine will be initiated at an initial rate of 2 mg/h for the first 1.5 minutes (90 seconds) and titrated thereafter per the Food and Drug Administration (FDA) approved clevidipine label, to achieve the target SBP +/- 5 mmHg. If the target SBP is achieved at any of the titration doses, that rate may be continued for up to 24 hours. If the desired BP lowering effect is not attained within 30 minutes or not maintained thereafter, any alternative antihypertensive agent may be used per institutional treatment practice, with or without stopping the study drug infusion.
Treatment:
Drug: Stage 1: Clevidipine (double-blinded)
Stage 1: Placebo (double-blinded)
Placebo Comparator group
Description:
Placebo will be administered in a double-blinded fashion intravenously to all patients randomized to the clevidipine arm in Stage 1. Placebo will be initiated at an initial rate of 2 mg/h for the first 1.5 minutes (90 seconds) and titrated thereafter according to the same dosing instructions as for clevidipine to achieve the target SBP +/- 5 mmHg. If the target SBP is achieved at any of the titration doses, that rate may be continued for up to 24 hours. If the desired BP lowering effect is not attained within 30 minutes or not maintained thereafter, any alternative antihypertensive agent may be used per institutional treatment practice, with or without stopping the study drug infusion.
Treatment:
Drug: Stage 1: Placebo (double-blinded)
Stage 2: Clevidipine (open-label)
Experimental group
Description:
Clevidipine (0.5 mg/mL in 20% lipid emulsion) will be administered in an open-label fashion intravenously to all patients randomized to the clevidipine arm in Stage 2, following the same dosing instructions as in the clevidipine arm in Stage 1. If the desired BP lowering effect is not attained within 30 minutes or not maintained thereafter, any alternative antihypertensive agent may be used per institutional treatment practice, with or without stopping the study drug infusion.
Treatment:
Drug: Stage 2: Clevidipine (open-label)
Stage 2: Standard of Care (open-label)
Active Comparator group
Description:
For patients randomized to SOC, the infusion must be continuous, administered per the institution's treatment practice, and dose titration must be performed to a maximum allowed or maximum tolerated dose to achieve target SBP. If treatment with an alternative IV anti-hypertensive agent is required, the patient will be transitioned to an alternative IV antihypertensive agent according to the institutional standard of care.
Treatment:
Drug: Stage 2: Standard of Care (open-label)

Trial contacts and locations

9

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Data sourced from clinicaltrials.gov

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