A Study to Evaluate ALN-AGT01 in Patients With Hypertension

January 13, 2023 updated by: Alnylam Pharmaceuticals

A Phase 1, Randomized, Double-Blind, Placebo-Controlled Single Dose and Active Comparator-Controlled Multiple Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Subcutaneously Administered ALN-AGT01 in Patients With Hypertension

The purpose of this study is to evaluate the safety, tolerability, pharmacokinetic (PK), and pharmacodynamic (PD) effects of subcutaneous (SC) ALN-AGT01 (zilebesiran) in participants with hypertension. The study will be conducted in 4 parts: Part A will be a single ascending dose (SAD) phase in hypertensive participants, Part B will be a single dose (SD) phase in hypertensive participants with controlled salt intake, Part D will be a MD phase in hypertensive participants who are obese, and Part E will be an open-label SD phase with co-administration of irbesartan in hypertensive patients.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
124

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United Kingdom
      • Edinburgh, United Kingdom
        • Clinical Trial Site
      • London, United Kingdom
        • Clinical Trial Site
      • Manchester, United Kingdom
        • Clinical Trial Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Has mild to moderate hypertension with mean sitting systolic blood pressure (SBP) of >130 and ≤165 mmHg without hypertensive medication for Parts A, B and D, and >135 and ≤165 mmHg without hypertensive medication for Part E
  • Parts A and B: Has body mass index (BMI) ≥18 and ≤35 kg/m^2; Part D: Has BMI >35 and ≤50 kg/m^2; Part E: Has BMI ≥18 kg/m^2 and ≤50 kg/m^2
  • Has a normal 12-lead electrocardiogram (ECG)
  • Is a nonsmoker

Exclusion Criteria:

  • Has secondary hypertension
  • Has orthostatic hypotension
  • Has estimated glomerular filtration rate (eGFR) of <60 mL/min/1.73m^2
  • Recently received an investigational agent
  • Has diabetes mellitus
  • Has history of any cardiovascular event
  • Has history of intolerance to SC injection(s)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Part A: SAD: ALN-AGT01
Participants will be administered a single dose of ALN-AGT01.
Drug: ALN-AGT01
ALN-AGT01 will be administered by subcutaneous (SC) injection.
Other Names:
  • Zilebesiran
Placebo Comparator: Part A: SAD: ALN-AGT01-Matching Placebo
Participants will be administered a single dose of ALN-AGT01-matching placebo.
Drug: ALN-AGT01-Matching Placebo
Normal saline (0.9% NaCl) matching volume of ALN-AGT01 doses will be administered SC.
Experimental: Part B: SD: ALN-AGT01
Participants with controlled salt intake will be administered a single dose of ALN-AGT01.
Drug: ALN-AGT01
ALN-AGT01 will be administered by subcutaneous (SC) injection.
Other Names:
  • Zilebesiran
Placebo Comparator: Part B: SD: ALN-AGT01-Matching Placebo
Participants with controlled salt intake will be administered a single dose of ALN-AGT01-matching placebo.
Drug: ALN-AGT01-Matching Placebo
Normal saline (0.9% NaCl) matching volume of ALN-AGT01 doses will be administered SC.
Experimental: Part D: MD: ALN-AGT01 + Irbesartan-Matching Placebo
Participants, who are obese, will be administered multiple doses of ALN-AGT01 and irbesartan-matching placebo.
Drug: ALN-AGT01
ALN-AGT01 will be administered by subcutaneous (SC) injection.
Other Names:
  • Zilebesiran
Drug: Irbesartan-Matching Placebo
Irbesartan-matching placebo will be administered orally.
Active Comparator: Part D: MD: ALN-AGT01-Matching Placebo + Irbesartan
Participants, who are obese, will be administered multiple doses of ALN-AGT01-matching placebo and irbesartan.
Drug: ALN-AGT01-Matching Placebo
Normal saline (0.9% NaCl) matching volume of ALN-AGT01 doses will be administered SC.
Drug: Irbesartan
Irbesartan will be administered orally.
Experimental: Part E: Open Label: ALN-AGT01 + Irbesartan
Participants will be administered a single dose of ALN-AGT01 and multiple doses of irbesartan.
Drug: ALN-AGT01
ALN-AGT01 will be administered by subcutaneous (SC) injection.
Other Names:
  • Zilebesiran
Drug: Irbesartan
Irbesartan will be administered orally.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Number of Participants with Adverse Events (AEs)
Time Frame: Parts A, B and E: each up to approximately 12 months; Part D: up to approximately 18 months
Parts A, B and E: each up to approximately 12 months; Part D: up to approximately 18 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Change from Baseline in Blood Angiotensinogen (AGT) Level
Time Frame: Parts A, B and E: each up to approximately 12 months; Part D: up to approximately 18 months
Parts A, B and E: each up to approximately 12 months; Part D: up to approximately 18 months
Maximum Observed Plasma Concentration (Cmax) of ALN-AGT01 and of Potential Metabolites
Time Frame: Parts A, B and E: Up to Day 15; Part D: Up to Day 99
Parts A, B and E: Up to Day 15; Part D: Up to Day 99
Area Under the Concentration-time Curve (AUC) of ALN-AGT01 and of Potential Metabolites
Time Frame: Parts A, B and E: Up to Day 15; Part D: Up to Day 99
Parts A, B and E: Up to Day 15; Part D: Up to Day 99

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Alnylam Pharmaceuticals

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 1, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
April 20, 2022

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 4, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 29, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 29, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 1, 2019

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 16, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 13, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ALN-AGT01-001
  • 2019-000129-39 (EudraCT Number)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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