E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
This study does not investigate a medical condition and is performed in healthy volunteers. |
Deze studie onderzoekt geen ziekte en wordt uitgevoerd in gezonde vrijwilligers. |
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E.1.1.1 | Medical condition in easily understood language |
This study does not investigate a medical condition, but it will investigate the effect of 2 immunosuppressive medication on the body systems, such as the bodies stress system and immune system. |
Deze studie onderzoekt geen ziekte, maar zal de effecten van 2 immunosuppressieve medicijnen onderzoeken op meerdere onderdelen van het menselijk lichaam, o.a. het stresssysteem en het immuunsysteem. |
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E.1.1.2 | Therapeutic area | Body processes [G] - Biological Phenomena [G16] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The main objectieve of the current clinical trial is to re-examine the bioequivalance of prednisolone and dexamethasone on multiple physiological components of the human body, including the hypothalamic-pituitary-adrenal axis (HPA-axis). |
Het hoofddoel van de huidige studie is om de bio-equivalentie van prednisolon en dexamethason opnieuw onder de loep te nemen, voor verschillende fysiologische componenten van het menselijk lichaam, inclusie de hypothalamus-hypofyse-bijnieras |
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E.2.2 | Secondary objectives of the trial |
- To compare and examine the effects of prednisolone and dexamethasone in a (double-blind) randomized clinical trial - To study the (potential difference in) effects of prednisolone and dexamethasone using modern and more accurate laboratorytechniques. |
- Het vergelijken van prednisolon en dexametason in een (dubbelblinde) randomized clinical trial - To study the (potential difference in) effects of prednisolone and dexamethasone using modern and more accurate laboratory techniques.
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Participants must be healthy with no relevant medical history and no use of medication. 2. Female participants must be using oral contraceptives 3. Command of the Dutch language 4. Providing written IC 5. BMI between 18.5 and 30 kg/m2
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1. Deelnemers moeten gezond zijn zonder relevante medische voorgeschiedenis en mogen geen medicatie gebruiken 2. Vrouwelijke deelnemers moet orale anticonceptie gebruiken 3. Deelnemers moeten de Nederlandse taal beheersen 4. Deelnemers moeten geschreven informed consent leveren 5. Deelnemers moeten een BMI tussen de 18.5 en 30 kg/m2 hebben. |
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E.4 | Principal exclusion criteria |
1. Potential participants who are unlikely to adhere to the study protocol (for instance subjects which have a history of substance abuse or non-compliance) 2. Potential participants with a medical history of: a. Diseases affecting the HPA-axis: e.g. primary and secondary adrenal insufficiency, pituitary tumors, and nightshift workers b. Diseases affecting the HPG-axis: e.g. diabetes c. Chronic inflammatory diseases: e.g. rheumatoid arthritis, polymyalgia rheumatic, and asthma d. Psychiatric diseases e. Diabetes
3. Shift workers. 4. Potential participants with a kidney function <60 ml/min/1.73m2, abnormalities in liver enzymes, and/or abnormalities in thyroid function 5. Potential participants who are dependent on corticosteroids, e.g. asthmatic patients, and transplant recipients 6. Potential participants who utilize any medication which is likely to confound assessment of the endpoint (e.g. inhaled corticosteroids, hormone supplements, psychotropic drugs, carbamazepine or vaccination) 7. Potential participants who have known contraindication to the study medication (e.g. known peptic ulcer disease or active infectious disease) 8. Potential participants who intend to undergo significant lifestyle changes e.g. voluntary weight loss and discontinue smoking habits.
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Potentieel deelnemers die niet geschikt zijn om mee te doen aan de huidige studie zijn: 1. Potentiële deelnemers die zich met grote zekerheid niet aan het studie protocol zullen houden (bijv. mensen met een voorgeschiedenis van middelenmisbruik of therapie ontrouw) 2. Potentiële deelnemers met een medische voorgeschiedenis van: a. Aandoeningen van de HPA-as: bijv. primaire of secundaire bijnierschorinsufficiëntie, hypofyse tumoren en mensen die nachtdiensten werken b. Aandoeningen die effect hebben op de HPG-as: bijv. diabetes c. Chronische inflammatoire ziekten bijv. reumatoïde artritis, polymyalgia rheumatica en astma d. Psychiatrische aandoeningen
3. Mensen die in ploegendienst werken 4. Potentiële deelnemers met een nierfunctie <60 ml/min/1.73m2, afwijkende leverwaarden en/of abnormale schildklierfunctie 5. Potentiële deelnemers die afhankelijk zijn van corticosteroïden zoals patiënten met astma en transplantatie patiënten 6. Potentiële deelnemers die medicatie gebruiken welke met grote zekerheid een interactie heeft met een van de eindpunten (bijv. inhalatie corticosteroïden, hormoon supplementen, psychotrope medicatie, carbamazepine of vaccinaties 7. Potentiële deelnemers die een contra-indicatie hebben tegen de studie medicatie (bijv. maagzweren of actieve infectie) 8. Potentiële deelnemers die van plan zijn om gedurende de studieperiode grote leefstijlveranderingen door te voeren zoals bewust gewichtsverlies en stoppen met roken.
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary study parameter will be the bioequivalence of prednisolone and dexamethasone as determined by the level of suppression of total cortisol excretion in 24h-urine between low dose prednisolone and dexamethasone and high dose prednisolone and dexamethasone. |
Het primaire eindpunt van de studie is de bio-equivalentie van prednisolon en dexamethason. Dit eindpunt wordt afgemeten aan de mate van suppressie van de totale cortisol excretie in 24h urine tussen de lage dosis prednisolon en dexamethason en tussen de hoge dosis prednisolon en dexametason. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
All study visits ( 5 times) |
Alle studievisites (5 keer) |
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E.5.2 | Secondary end point(s) |
Secondary study parameters will be: - Suppression of the HPA-axis measured by plasma cortisol, adrenocorticotropic hormone, and metabolites in the steroid profile in 24h urine (e.g. free and total cortisol, tetrahydrocortisol, tetrahydrocortisone, and allo-tetrahydrocortisol). - Suppression of the HPG-axis measured by testosterone, LH, FSH, SHBG, dihydrotestosterone, and steroid profile in 24h urine (e.g. androsterone, etiocholanolone, and dehydroepiandrosterone). - The pharmacokinetics and pharmacodynamics of prednisolone and dexamethasone. - Suppression of the immune system measured by leucocyte count, granulocyte count (neutrophils, eosinophil’s, and basophils), monocyte count, absolute B cell (CD19+) count, absolute T cell (CD3+, CD4+ and CD8+) count, absolute natural killer cell (CD16+ en CD56+) count, and RNA. - Renin–angiotensin–aldosterone system measured by plasma renin, aldosterone, potassium, 24h urine potassium, and trans-tubular potassium gradient. - Muscle mass measured by 24h urinary creatinine excretion rate and creatine kinase. - Metabolic parameters measured by fasting glucose, fasting insulin, HbA1c, cholesterol, triglycerides, glycerol, and non-esterified fatty acids. - Bone status as measured by calcium and osteocalcin - Clinical parameters: body weight, height, waist circumference, hip circumference, blood pressure - Neurocognitive function as measured by CanTab Cognitive and Psychological test
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Secundaire eindpunten zijn: - Suppressie van de HPA-as gemeten aan: het plasma cortisol, ACTH en cortisol metabolieten in 24h urine (bijv. vrij en totaal cortisol, tetrahydrocortisol, tetrahydrocortisol, tetrahydrocortisone, and allo-tetrahydrocortisol) - Suppressie van de HPG-as gemeten aan: testosteron, LH,FSH, SHBG, DHT, en androgeen metabolieten in 24h urine (bijv. androsterone, etiocholanolone, and dehydroepiandrosterone). - De farmacokinetiek en farmacodynamiek van prednisolon en dexamethason. - Suppressie van het immuunsysteem - Spiermassa - Bot parameters - Klinische uitkomstmaten - Neurocognitief functioneren |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
All study visits ( 5 times) |
Alle studievisites (5 keer) |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | No |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | Yes |
E.6.9 | Dose response | Yes |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | Yes |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
Dexamethason |
Dexamethasone |
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E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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LVLS |
De laatste studie visite van de laatste deelnemer |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |