Outcome of Patients With Primary Aldosteronism (PA_Outcome)
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ClinicalTrials.gov Identifier: NCT04428827 |
Recruitment Status :
Recruiting
First Posted : June 11, 2020
Last Update Posted : August 12, 2021
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Majority of patients with hypertension have primary hypertension (without an underlying cause). Primary aldosteronism (PA) is the most common cause of secondary hypertension, and can be found in 5-10% of patients locally. PA is caused by excessive release of a hormone (aldosterone) from the adrenal glands, which can be unilateral (one gland) or bilateral (both glands).
It has been shown that excess aldosterone has other harmful effects in addition to hypertension, such as directly affecting the heart, blood vessels, kidneys, leading to increased cardiovascular morbidity and mortality. This is supported by studies showing reversal of these effects after treatment for PA.
The investigators aim to assess the long-term cardiovascular, and renal outcomes of patients with PA, compared to patients with essential hypertension.
Condition or disease | Intervention/treatment |
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Primary Aldosteronism Primary Aldosteronism Due to Aldosterone Producing Adenoma Primary Aldosteronism Due to Adrenal Hyperplasia (Bilateral) Adrenalectomy; Status Mineralocorticoid Excess Mineralocorticoid Antagonists [Aldosterone Antagonists] Causing Adverse Effects in Therapeutic Use Cardiovascular Morbidity Chronic Renal Disease Hypokalemia | Procedure: Unilateral adrenalectomy in patients with unilateral disease |
Study Type : | Observational |
Estimated Enrollment : | 600 participants |
Observational Model: | Cohort |
Time Perspective: | Retrospective |
Official Title: | Long-term Outcomes in Patients With Primary Aldosteronism After Treatment |
Actual Study Start Date : | October 1, 2016 |
Estimated Primary Completion Date : | July 30, 2022 |
Estimated Study Completion Date : | July 30, 2022 |

Group/Cohort | Intervention/treatment |
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Surgery
Patients treated with surgery
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Procedure: Unilateral adrenalectomy in patients with unilateral disease
Unilateral adrenalectomy in patients with unilateral disease |
Medications
Patients treated with mineralocorticoid antagonists or potassium sparing diuretics for primary aldosteronism
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- change in systolic blood pressure before and after treatment [ Time Frame: six months after treatment ]change in systolic blood pressure
- change in diastolic blood pressure before and after treatment [ Time Frame: six months after treatment ]change in diastolic blood pressure
- change in systolic blood pressure before and after treatment [ Time Frame: through study completion, an average of 5 years ]change in systolic blood pressure
- change in diastolic blood pressure before and after treatment [ Time Frame: through study completion, an average of 5 years ]change in diastolic blood pressure
- cardiovascular outcome [ Time Frame: through study completion, an average of 5 years ]incidence of new cardiovascular events including acute myocardial infarction, revascularisation percutaneously, coronary artery bypass graft, stroke, admission for congestive cardiac failure, atrial fibrillation
- chronic kidney disease [ Time Frame: through study completion, an average of 5 years ]incidence of worsening chronic kidney disease, decline of glomerular filtration rate by 15ml/min from at least 60m/min
- Renal Progression [ Time Frame: through study completion, an average of 5 years ]rate of decline of glomerular filtration rate
- variables that predict unilateral disease [ Time Frame: through study completion, an average of 5 years ]Identify variables that are more common in patients with unilateral disease
- variables that predict blood pressure response [ Time Frame: through study completion, an average of 5 years ]Identify variables that are more common in patients with positive blood pressure response

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Ages Eligible for Study: | 14 Years to 100 Years (Child, Adult, Older Adult) |
Sexes Eligible for Study: | All |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Patients with suspected primary aldosteronism
Exclusion Criteria:
- Nil

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04428827
Contact: Troy Puar, MRCP | 67888833 | troy_puar@cgh.com.sg |
Singapore | |
Changi General Hospital | Recruiting |
Singapore, Singapore, 529889 | |
Contact: Troy Puar 67888833 troy_puar@cgh.com.sg |
Principal Investigator: | Troy Puar, MRCP | Changi General Hospital |
Responsible Party: | Changi General Hospital |
ClinicalTrials.gov Identifier: | NCT04428827 |
Other Study ID Numbers: |
PA_Outcome |
First Posted: | June 11, 2020 Key Record Dates |
Last Update Posted: | August 12, 2021 |
Last Verified: | August 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
Plan Description: | Sharing of anonymised pooled data |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Adenoma Adrenal Hyperplasia, Congenital Adrenogenital Syndrome Renal Insufficiency, Chronic Kidney Failure, Chronic Hypokalemia Hyperaldosteronism Hyperplasia Kidney Diseases Urologic Diseases Pathologic Processes Neoplasms, Glandular and Epithelial Neoplasms by Histologic Type Neoplasms |
Adrenocortical Hyperfunction Adrenal Gland Diseases Endocrine System Diseases Disorders of Sex Development Urogenital Abnormalities Congenital Abnormalities Genetic Diseases, Inborn Steroid Metabolism, Inborn Errors Metabolism, Inborn Errors Metabolic Diseases Gonadal Disorders Renal Insufficiency Water-Electrolyte Imbalance |