E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Patients with Chronic Kidney Disease treated for Hyperkalaemia whilst in hospital, who are normokalemic and established on maintenance dose of SZC at discharge. |
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E.1.1.1 | Medical condition in easily understood language |
Hyperkalemia means that the potassium level in the blood is higher than normal |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nutritional and Metabolic Diseases [C18] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10020646 |
E.1.2 | Term | Hyperkalaemia |
E.1.2 | System Organ Class | 10027433 - Metabolism and nutrition disorders |
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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 |
To evaluate the efficacy of continuing SZC as part of the discharge medications, compared to SoC, in maintaining NK |
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E.2.2 | Secondary objectives of the trial |
To evaluate the effect of continuing SZC as part of the discharge medications, compared to SoC: 1. in reducing the incidence of the composite outcome of hospital admissions or ED visits with HK as a contributing factor, all-cause death, or use of rescue-therapy for HK 2. in reducing the incidence of hospital admissions or ED visits with HK as a contributing factor 3. in reducing the the number of hospital admission or ED visits with HK as a contributing factor 4. in reducing the incidence of hospital admissions or ED visits with HK as a contributing factor 5. in reducing the number of hospital admissions or ED visits with HK as a contributing factor 6. on reducing the risk of RAASi down-titration or discontinuation |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1 Must be 18 years of age or older, at the time of signing the informed consent 2 Admitted to hospital (inpatient care; directly or from ED) 3 With: - diagnosed CKD (any stage) or - eGFR < 90 ml/min/1.73 m2 at, or within 3 months of, study screening, based on the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation (Levey et al, 2009). Note: Race/ethnicity should not be included in CKD-EPI equation calculation. 4 Local laboratory K+ measurement within 24 hours of baseline visit (visit2), where result is either: - Hyperkalaemic as defined by site's local practice and K+ ≤ 6.5 mmol/L - Or, normakalaemic: K+ between ≥ 3.5 and ≤ 5 mmol/L , where patient started and is receiving treatment for this episode of HK 5 Male or female 6 Capable and willing of giving signed informed consent as described in Appendix A which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in the protocol. |
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E.4 | Principal exclusion criteria |
1 Hospitalisation for an acute cardiovascular event within 12 weeks prior to screening 2 Unable to take oral SZC drug mix 3 - 4 With a life expectancy of less than 6 months 5 Any medical condition that, in the opinion of the investigator or sponsor, makes the participant not suitable for inclusion 6 QT interval corrected by the Fridericia method (QTcF) > 550 msec 7 History of QT prolongation associated with other medications that required discontinuation of that medication 8 Congenital long QT syndrome 9 Clinically significant arrythmias as judged by the investigator 10 Ongoing treatment with SZC or patiromer before current ED visit/hospital admission (ongoing treatment with other K-binders before current ED visit/hospital admission is allowed). Note: Initiation of SZC or patiromer during the current ED visit/hospitalization preceding enrolment is allowed. 11 Chronic haemodialysis or peritoneal dialysis or the recipient of or scheduled date for a kidney transplant. Note: Emergency/unscheduled haemodialysis to treat HK during the current ED visit/hospitalisation preceding enrolment is allowed. 12 Participation in another clinical study with an investigational medical product (IMP) administered during the month before screening. 13 Known hypersensitivity to SZC or any of the excipients of the product 14 Involvement in the planning and/or conduct of the study (applies to both AstraZeneca staff and/or staff at the study site) 15 Judgment by the investigator that the participant should not participate in the study if the participant is unlikely to comply with study procedures, restrictions, and requirements 16 Previous randomisation in the present study 17 For women only: Women of child-bearing potential (WOCBP; ie, those who are not chemically or surgically sterilised or who are not postmenopausal) who are not willing to use one of the methods of contraception described hereafter, or who are not stable on the contraception method for the last one month, from the time of signing the informed consent throughout the study and 7 days after the last dose (a) Combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation: oral, intravaginal, transdermal (b) Progestogen-only hormonal contraception associated with inhibition of ovulation: oral, injectable, implantable (c) Intrauterine device (IUD) (d) Intrauterine hormone-releasing system (IUS) (e) Bilateral tubal occlusion (f) Vasectomised partner (vasectomised partner is a highly effective birth control method provided that partner is the sole sexual partner of the WOCBP participant and that the vasectomised partner has received medical assessment of the surgical success (g) Sexual abstinence: it is considered a highly effective method only if defined as refraining from heterosexual intercourse during the entire period of risk associated with the study treatments. The reliability of sexual abstinence needs to be evaluated in relation to the duration of the study and the preferred and usual lifestyle of the participant. 18 For WOCBP only: Women who have a positive pregnancy test at screening OR women who are breastfeeding. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Occurrence (yes/no) of NK (K+ between 3.5 and 5.0 mmol/L, inclusive) at 180 days post-discharge. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Up to 180 days post-discharge |
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E.5.2 | Secondary end point(s) |
Time to first occurrence of: • All-cause hospital admissions or ED visits with HK as a contributing factor, or all-cause death or use of rescue therapy for HK at any time post-discharge up to 180 days • All-cause hospital admission, or ED visit, with HK as a contributing factor at any time post-discharge up to 180 days. • Number of all-cause hospital admission, or ED visits, with HK as a contributing factor at any time post discharge up to 180 days. • Hospital admission or ED visit, both with HK as a contributin gfactor at any time post-discharge up to 180 days. • AlNumber of hospital admission or ED visits, both with HK as a contributing factor at any time post discharge up to 180 days. • RAASi down titration (or discontinuation)
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
At any time post-discharge up to 180 days. |
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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 | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
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 | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
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 |
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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
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 4 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 39 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
United Kingdom |
Belgium |
France |
Italy |
Netherlands |
Spain |
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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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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 2 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 30 |
E.8.9.2 | In all countries concerned by the trial years | 2 |
E.8.9.2 | In all countries concerned by the trial months | 6 |
E.8.9.2 | In all countries concerned by the trial days | 30 |