11C-Metomidate PET/CT for Endocrine Hypertension and Characterisation of Adrenal Tumours
Primary Aldosteronism Due to Aldosterone Producing AdenomaPrimary Aldosteronism1 more10% of patients with hypertension potentially have the treatable condition - primary aldosteronism (PA). This is caused by either bilateral adrenal disease (~40%), managed with lifelong medications; or unilateral disease (~60%), cured with laparoscopic surgery (adrenalectomy). Current diagnosis of PA includes a screening test with aldosterone-renin ratio, followed by a confirmatory salt loading test (in most patients) to demonstrate unsuppressed aldosterone levels. Of note, some patients with suppressed aldosterone after confirmatory tests (also termed low-renin hypertension) may also have unilateral adrenal tumors. The difficulty with identifying curable unilateral disease is due to adrenal vein sampling (AVS): an invasive, and technically-difficult procedure. An alternative novel imaging, 11C-Metomidate Positron emission tomography-computed tomography (PET-CT), can detect adrenal tumors which are over-producing aldosterone. It is non-invasive, non-operator-dependent, and potentially may identify more patients with curable unilateral disease. The results from our pilot study in 25 patients with confirmed PA (ClinicalTrials.gov NCT03990701, PA_CURE) showed that 11C-Metomidate PET-CT exhibited comparable performance to AVS in subtyping PA, and this should be validated in a larger study. In addition, 11C-Metomidate is also able to differentiate adrenocortical lesions in the adrenal gland from other lesions found in adrenal tissue, such as adrenomedullary lesions (e.g. pheochromocytoma). Hence, the investigators hypothesize that 11C-metomidate PET-CT can accurately (1) identify patients with surgically curable unilateral adrenal disease among hypertensive Asians with primary aldosteronism (PA_CURE 2 / PA_MTO EH study) and (2) differentiate adrenocortical lesions from other lesions in patients with adrenal tumors (PA_MTO AT study)
Superselective Adrenal Arterial Embolization for Bilateral Idiopathic Hyperaldosteronism: A Prospective...
Primary Aldosteronism Due to Adrenal Hyperplasia (Bilateral)The most common two subtypes of primary aldosteronism (PA ) are aldosterone producing adenoma (APA) and bilateral idiopathic hyperaldosteronism (IHA). Mineralocorticoid receptor (MR) antagonists is the main treatment for bilateral IHA, because of its side effects, the treatment compliance of those patients is poor. Hence, an alternative therapy is needed in such cases. We hypothesized that superselective adrenal artery embolization (SAAE) could be a suitable alternative approach. To our knowledge, SAAE has so far not been applied to treat bilateral IHA. This study aimed to evaluate the efficacy and safety of SAAE in the treatment of PA patients with bilateral IHA.
Antecubital Versus Femoral Approach for Adrenal Venous Sampling
HyperaldosteronismSubtype diagnosis is crucial for the treatment of primary aldosteronism (PA), which conducts the appropriate treatment strategy. Currently, adrenal venous sampling (AVS) serves as the gold standard for subtyping of PA. At present, almost all medical centers use the femoral vein approach for AVS, and most studies report that the success rate is 30%-80%. Our research team is the first in the world to conduct AVS via an antecubital approach. The aim of this study is to compare the success rate and safety of AVS via antecubital and femoral approach.
Application of 68Ga-Pentixafor PET/CT in Primary Aldosteronism and Pre-postoperative of SAAE
Positron-Emission TomographyPrimary aldosteronism is the most common cause of secondary hypertension. The two main types of primary aldosteronism are aldosteronoma(30%) and adrenal hyperplasia(60%). The gold standard that determines the diagnosis and treatment strategy of primary aldosteronism is adrenal vein sampling(AVS), but the success rate is only about 80%. Using CXCR4 as a probe for 68Ga-Pentixafor PET/CT imaging can guide the classification diagnosis and treatment strategy of primary aldosteronism, which is a favorable supplement to AVS. Superselective adrenal artery embolization(SAAE) and laparoscopy are the main operation treatments for primary aldosteronism. SAAE is an invasive interventional operation. It is a novel way to evaluate the changes in the structure and function of adrenal tissue pre-postoperative SAAE by using the changes in 68Ga-Pentixafor PET/CT imaging.
Effect of MRA on Cardiovascular Disease in Patients With Hypertension and Hyperaldosteronemia
HypertensionHyperaldosteronaemiaElevated aldosterone causes moderate to severe increase in blood pressure, and leads to various target organ damage including cardiovascular ones. Aldosterone has been considered one of the important risk factors for cardiovascular and cerebrovascular diseases. Currently, the use of mineralocorticoid receptor antagonists(MRA) has been proven to reduce blood pressure levels, but long-term prognostic data are lacking in hypertensive patients. Therefore, the purpose of this clinical trial is to assess the effect of MRA on cardiovascular disease in patients with Hypertension and Hyperaldosteronemia.
A Study of CIN-107 in Adults With Primary Aldosteronism
Primary AldosteronismHyperaldosteronismThis is a multicenter, open-label study in adult patients with PA to evaluate the effectiveness and safety of CIN-107 after up to 12 weeks of treatment (Part 1), and then for eligible, consenting patients follow patients in Part 2 for up to 74 weeks for evidence of long-term safety and tolerability.
Comparison of Imaging Quality Between Spectral Photon Counting Computed Tomography (SPCCT) and Dual...
Diabetic Foot UlcerCoronary Artery Disease11 moreThis pilot study wants to determine to which extent SPCCT allows obtaining images with improved quality and diagnostic confidence when compared to standard Dual Energy CT (DECT), both with and without contrast agent injection. Depending on the anatomical structures/organs to be visualized during CT examinations, different scanning protocols are performed with quite variable ionizing radiation doses. Therefore, in order to obtain the most extensive and representative results of the improvement in image quality between SPCCT and DECT that will be performed CT imaging on several body regions and structures, including diabetic foot, diabetic calcium coronary scoring, adrenal glands, coronary arteries, lung parenchyma, kidney stones, inner ear, brain and joints, earl/temporal bone, colorectal carcinosis.
Determination of Threshold Values of Aldosterone in HPLC-MS/MS, of Renin and of the Aldosterone...
Hyperaldosteronism; Primarycollaborative work within 2 hospitals at the CHU of Caen, at the CHRU of Lille, concerning the evaluation of the biological markers of primary hyperaldosteronism (PAH) with the dosage of aldosterone in LC -MS/MS, which is performed in both centers, with two different techniques. The main objective is to define the range of Aldosterone concentrations in LC MS/MS, of renin in an automated method, in populations of healthy volunteers, essential hypertensives, and hypertensives with primary hyperaldosteronism. , in order to establish a threshold for the screening of PAH by the RAR, and for the confirmation of PAH by a dynamic test with an Aldosterone threshold post salt load test.
Primary Aldosteronism in Western Norway
HyperaldosteronismIn this study the investigators aim to identify and include consecutively patients with primary aldosteronism (PA) diagnosed in the Western and Mid-parts of Norway, to describe the characteristics of these patients, to explore the cardiac effects of PA before and after specific treatment, and to identify long-term outcomes after treatment. One subgroup of the PA patients perform echocardiography to assess left ventricular systolic myocardial function before and after treatment. One subgroup of PA patients perform cardiac MRI to assess myocardial mass, myocardial fibrosis and myocardial function in rest and during stress, before and after treatment. For the cardiac MRI substudy, the PA patients are compared with a group of healthy controls, also included in the study. From 2022 onwards, PA patients diagnosed or subtyped with adrenal vein sampling at Oslo University Hospital will additionally be included in the study, thereby providing a national registration of PA patients.
Real-time Monitoring of Cortisol - Comparison of Cortisol Levels in Four Biological Fluids
Adrenal InsufficiencyCushing Syndrome1 moreCortisol is an essential for life hormone secreted in a pulsatile pattern on a diurnal rhythm. Given the complexity of cortisol secretion on a circadian rhythm with pulsations, current methods of cortisol measurement have limitations. Therefore, a non-invasive and ambulatory method would be useful to measure cortisol levels in real-time. The main aim of the study is to compare cortisol levels across biological fluids (sweat, saliva, interstitial fluid, and blood) in order to validate in the long term a continuous and non-invasive cortisol measurement device (currently under development).