A New Breath for Malignant Hypertension: Implementation of the HAMA Cohort (HAMA)

March 19, 2026 updated by: Romain Boulestreau, Centre Hospitalier de PAU
This registry aims to provide the first prospective, multicentric database of patients with malignant hypertension. It will allow to assess modern epidemiology of the disease, diversity of current management and care pathway, to deepen our pathophysiological knowledges, to modernize the definition of this form of hypertension and its diagnostic criteria. The network that will emerge will finally lead to the opportunity of setting up therapeutic trials and establishing recommendations based on solid scientific evidence.

Study Overview

Status

Status

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

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.

Detailed Description

Malignant hypertension is the most severe form of high blood pressure, fatal if left untreated. It has not disappeared, with an increasing incidence. Patients with the disease, mainly young (35 to 55 years of age), have an unfavorable cardiovascular prognosis (14% of cardiovascular and renal events at 4 years). Despite these facts, scientific research on the subject remains limited. The definitions and diagnostic criteria have not changed since 1929, and the therapeutic recommendations remain empirical.

This first prospective and multicentric registry will increase and modernize the knowledge of the disease. From these data, diagnostic and therapeutic recommendations based on solid scientific evidence could be developed.

The investigators want to first recruit 500 patients and define their prognosis at 5 years. The impact of the patient's phenotype, type and number of target organs affected will be studied.

A modern definition, adapted to these results, could be proposed. The epidemiology of the disease, the care pathways, the target organ disorders and the management carried out in the centers will be described in detail.

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.
Observational

Enrollment (Estimated)

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.
1200

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

  • France
      • Annecy, France
      • Bayonne, France, 64109
        • Recruiting
        • CH de la Côte Basque
        • Contact:
      • Bobigny, France, 93009
      • Bordeaux, France, 33000
      • Chalon-sur-Saône, France
      • Chambéry, France, 73011
      • Clermont-Ferrand, France
      • Créteil, France
      • Dinard, France, 35800
      • Grenoble, France, 38043
      • Haguenau, France, 67504
      • Le Mans, France
      • Libourne, France, 33505
      • Lille, France, 59037
      • Marseille, France, 13012
      • Marseille, France, 13385
        • Recruiting
        • Hôpital de la Conception
        • Contact:
      • Martigues, France, 13500
      • Montpellier, France
      • Nantes, France, 44800
      • Paris, France, 75015
        • Recruiting
        • Hopital Europeen Georges Pompidou
        • Contact:
      • Paris, France, 75014
        • Recruiting
        • Hopital Saint Joseph
        • Contact:
      • Paris, France, 75877
      • Paris, France
      • Paris, France
      • Pau, France, 64000
      • Pitres, France, 97159
      • Poitiers, France, 86021
      • Rennes, France, 35033
      • Rouen, France, 76000
      • Saint-Denis, France, 97400
        • Recruiting
        • Clinique sainte Clotilde
        • Contact:
      • Saint-Etienne, France, 42055
      • Saint-Nazaire, France, 44606
      • Strasbourg, France, 67000
      • Toulouse, France, 31059
      • Tours, France, 37044
      • Valenciennes, France
  • Poland
      • Warsaw, Poland
        • Not yet recruiting
        • National Institute of Cardiology
        • Contact:

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

Patients with malignant hypertension

Description

Inclusion Criteria:

  • Malignant hypertension according to the classic definition (Severe hypertension, above 180/110 associated with severe hypertensive retinopathy)
  • Severe hypertension (above 180/110) associated with acute damage of 3 target organ due to high blood pressure

Exclusion Criteria:

  • Age < 18 years old
  • Patients who cannot freely give their consent, or patients who refuse to participate
  • Dialysis

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

  • Observational Models: Cohort
  • Time Perspectives: Prospective

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
Measure Description
Time Frame
prognosis
Time Frame: 5 years
5-year prognosis for patients with malignant hypertension
5 years

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.
Centre Hospitalier de PAU

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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.
September 20, 2019

Primary Completion (Estimated)

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.
September 20, 2034

Study Completion (Estimated)

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.
September 20, 2034

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).
November 26, 2018

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.
November 26, 2018

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.
November 28, 2018

Study Record Updates

Last Update Posted (Actual)

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.
March 23, 2026

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.
March 19, 2026

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.
March 1, 2026

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.
  • CHPAU2018/01

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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