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Completed

NCT Number: NCT05103332

Zilebesiran as Add-on Therapy in Patients With Hypertension Not Adequately Controlled by a Standard of Care Antihypertensive Medication (KARDIA-2)

The purpose of this study is to evaluate the effect of zilebesiran on systolic and diastolic blood pressure and to characterize the pharmacodynamic (PD) effects and safety of zilebesiran as add-on therapy.

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Key information

Conditions

Hypertension Cardiovascular Diseases Vascular Diseases

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Clinical Trial Site, Brampton, Ontario, Canada

Loading trial locations.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Office SBP at Screening as follows:
  • ≥155 mmHg and ≤180 mmHg for patients with untreated hypertension
  • ≥145 mmHg and ≤180 mmHg for patients on antihypertensive medications
  • 24-hour mean SBP ≥130 mmHg and ≤160 mmHg by ABPM after at least 4 weeks of run-in

Exclusion criteria

  • Secondary hypertension, orthostatic hypotension
  • Elevated potassium <lower limit of normal (LLN) range or >5 milliequivalents per liter (mEq/L)
  • Estimated glomerular filtration rate (eGFR) of <30 mL/min/1.73m^2
  • Received an investigational agent within the last 30 days
  • Type 1 diabetes mellitus, poorly controlled Type 2 diabetes mellitus, or laboratory evidence of diabetes during screening without known diagnosis of diabetes
  • History of any cardiovascular event within 6 months prior to randomization
  • History of intolerance to SC injection(s)

Treatment and study plan

Indapamide

Drug

Indapamide administered orally

Amlodipine

Drug

Amlodipine administered orally

Olmesartan

Drug

Olmesartan administered orally

Placebo

Drug

Placebo administered by SC injection

Zilebesiran

Drug

Zilebesiran administered by SC injection

Other names: ALN-AGT01

Primary outcomes

  1. Indapamide: Change From Baseline at Month 3 in 24-hour Mean SBP Assessed by ABPM - Censored Data

    Time frame: Baseline and Month 3

    24-hour ABPM device was programmed to take readings every 20 minutes during day (6 am- 9:59 pm) and every 30 minutes during night (10 pm-5:59 am). ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; 3. no more than 3 hours are not represented (i.e.,3 sections of 60 minutes where 0 valid readings were obtained). To summarize 24-hour ABPM, the hourly adjusted mean was calculated. Hourly adjusted mean was the average BP for each hour of the day. The 24-hour mean was the average of the hourly means. Least squares (LS) mean and standard error (SE) were calculated using a mixed model repeated measures (MMRM) approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for SBP assessed using ABPM, while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

  2. Amlodipine: Change From Baseline at Month 3 in 24-hour Mean SBP Assessed by ABPM - Censored Data

    Time frame: Baseline and Month 3

    24-hour ABPM device was programmed to take readings every 20 minutes during day (6 am- 9:59 pm) and every 30 minutes during night (10 pm-5:59 am). ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; 3. no more than 3 hours are not represented (i.e.,3 sections of 60 minutes where 0 valid readings were obtained). To summarize 24-hour ABPM, the hourly adjusted mean was calculated. Hourly adjusted mean was the average BP for each hour of the day. The 24-hour mean was the average of the hourly means. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for SBP assessed using ABPM, while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

  3. Olmesartan: Change From Baseline at Month 3 in 24-hour Mean SBP Assessed by ABPM - Censored Data

    Time frame: Baseline and Month 3

    24-hour ABPM device was programmed to take readings every 20 minutes during day (6 am- 9:59 pm) and every 30 minutes during night (10 pm-5:59 am). ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; 3. no more than 3 hours are not represented (i.e.,3 sections of 60 minutes where 0 valid readings were obtained). To summarize 24-hour ABPM, the hourly adjusted mean was calculated. Hourly adjusted mean was the average BP for each hour of the day. The 24-hour mean was average of the hourly means. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for SBP assessed using ABPM, while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

Secondary outcomes

  1. Indapamide: Change From Baseline at Month 3 in Office SBP - Censored Data

    Time frame: Baseline and Month 3

    The mean office BP in the sitting position was used for the analysis. Office BP in the sitting position was collected with a set of 4 replicates. The average of the last 3 replicates was calculated and used for analysis. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for office SBP assessed while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

  2. Indapamide: Time-adjusted Change From Baseline Through Month 6 in 24-hour Mean SBP, Assessed by ABPM - All Collected Data

    Time frame: Baseline through Month 6

    Time-adjusted change was defined as the area under the curve (AUC) of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for SBP assessed by ABPM, were included in the analysis for this endpoint.

  3. Indapamide: Time-adjusted Change From Baseline Through Month 6 in Office SBP - All Collected Data

    Time frame: Baseline through Month 6

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for office SBP were included in the analysis for this endpoint.

  4. Indapamide: Percentage of Participants With 24-hour Mean SBP <130 mmHg and/or Reduction From Baseline ≥20 mmHg Assessed by ABPM Without Escape Antihypertensive Medications at Month 6

    Time frame: Month 6

    24-hour ABPM device was programmed to take readings every 20 minutes during the day (6 am to 9:59 pm) and every 30 minutes during the night (10 pm to 5:59 am). An ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; 3. no more than 3 hours are not represented (i.e., 3 sections of 60 minutes where 0 valid readings were obtained). To summarize the 24-hour ABPM, the hourly adjusted mean was calculated. Hourly adjusted mean was the average of BP for each hour of the day. The 24-hour mean was average of the hourly means.

  5. Indapamide: Change From Baseline at Month 3 in 24-hour Mean Diastolic Blood Pressure (DBP), Assessed by ABPM - Censored Data

    Time frame: Baseline and Month 3

    24-hour ABPM device was programmed to take readings every 20 minutes during the day (6 am to 9:59 pm) and every 30 minutes during the night (10 pm to 5:59 am). An ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; 3. no more than 3 hours are not represented (i.e., 3 sections of 60 minutes where 0 valid readings were obtained). To summarize the 24-hour ABPM, the hourly adjusted mean was calculated. Hourly adjusted mean was the average BP for each hour of the day. The 24-hour mean was average of the hourly means. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for DBP assessed using ABPM, while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

  6. Indapamide: Change From Baseline at Month 3 in Office DBP - Censored Data

    Time frame: Baseline and Month 3

    The mean office BP in the sitting position was used for the analysis. Office BP in the sitting position was collected with a set of 4 replicates. The average of the last 3 replicates was calculated and used for analysis. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for office DBP assessed while participants were on and within 2 weeks after stopping any escape medication was censored for this endpoint.

  7. Indapamide: Time-adjusted Change From Baseline Through Month 3 in 24-hour Mean SBP and DBP, Assessed by ABPM - Censored Data

    Time frame: Baseline through Month 3

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for SBP and DBP, assessed using ABPM, while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

  8. Indapamide: Time-adjusted Change From Baseline in Office SBP and DBP Through Month 3 - Censored Data

    Time frame: Baseline through Month 3

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for office SBP and DBP, while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

  9. Indapamide: Change From Baseline at Month 6 in 24-hour Mean SBP and DBP, Assessed by ABPM - All Collected Data

    Time frame: Baseline and Month 6

    24-hour ABPM device was programmed to take readings every 20 minutes during the day (6 am to 9:59 pm) and every 30 minutes during the night (10 pm to 5:59 am). An ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; 3. no more than 3 hours are not represented (i.e., 3 sections of 60 minutes where 0 valid readings were obtained). To summarize the 24-hour ABPM, the hourly adjusted mean was calculated. Hourly adjusted mean was the average BP for each hour of the day. The 24-hour mean was average of the hourly means. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for SBP and DBP assessed by ABPM are included in the analysis for this endpoint.

  10. Indapamide: Change From Baseline at Month 6 in Office SBP and DBP - All Collected Data

    Time frame: Baseline and Month 6

    The mean office BP in the sitting position was used for the analysis. Office BP in the sitting position was collected with a set of 4 replicates. The average of the last 3 replicates was calculated and used for analysis. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for office SBP and DBP, were included in the analysis for this endpoint.

  11. Indapamide: Time-adjusted Change From Baseline Through Month 6 in 24-hour Mean DBP, Assessed by ABPM - All Collected Data

    Time frame: Baseline through Month 6

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for DBP assessed by ABPM were included in the analysis for this endpoint.

  12. Indapamide: Time-adjusted Change From Baseline Through Month 6 in Office DBP - All Collected Data

    Time frame: Baseline through Month 6

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for office DBP were included in the analysis for this endpoint.

  13. Indapamide: Change From Baseline in Daytime and Nighttime SBP and DBP by ABPM at Each Visit - All Collected Data

    Time frame: Baseline, and Month 2, 3 and 6

    ABPM device was programmed to take readings every 20 minutes during the day (6 am to 9:59 pm) and every 30 minutes during the night (10 pm to 5:59 am). An ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; and 3. no more than 3 hours are not represented (i.e., 3 sections of 60 minutes where 0 valid readings were obtained). LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for daytime and nighttime SBP and DBP, assessed by ABPM, were included in the analysis for this endpoint.

  14. Indapamide: Percent Change From Baseline in Serum Angiotensinogen (AGT)

    Time frame: Baseline, Week 2 and Months 1, 2, 3, 4, 5 and 6

  15. Amlodipine: Change From Baseline at Month 3 in Office SBP - Censored Data

    Time frame: Baseline and Month 3

    The mean office BP in the sitting position was used for the analysis. Office BP in the sitting position was collected with a set of 4 replicates. The average of the last 3 replicates was calculated and used for analysis. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for office SBP assessed while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

  16. Amlodipine: Time-adjusted Change From Baseline Through Month 6 in 24-hour Mean SBP, Assessed by ABPM - All Collected Data

    Time frame: Baseline through Month 6

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for SBP assessed by ABPM, were included in the analysis for this endpoint.

  17. Amlodipine: Time-adjusted Change From Baseline Through Month 6 in Office SBP - All Collected Data

    Time frame: Baseline through Month 6

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for office SBP were included in the analysis for this endpoint.

  18. Amlodipine: Percentage of Participants With 24-hour Mean SBP <130 mmHg and/or Reduction From Baseline ≥20 mmHg Assessed by ABPM Without Escape Antihypertensive Medications at Month 6

    Time frame: Month 6

    24-hour ABPM device was programmed to take readings every 20 minutes during the day (6 am to 9:59 pm) and every 30 minutes during the night (10 pm to 5:59 am). An ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; 3. no more than 3 hours are not represented (i.e., 3 sections of 60 minutes where 0 valid readings were obtained). To summarize the 24-hour ABPM, the hourly adjusted mean was calculated. Hourly adjusted mean was the average of BP for each hour of the day. The 24-hour mean was average of the hourly means.

  19. Amlodipine: Change From Baseline at Month 3 in 24-hour Mean DBP, Assessed by ABPM - Censored Data

    Time frame: Baseline and Month 3

    24-hour ABPM device was programmed to take readings every 20 minutes during the day (6 am to 9:59 pm) and every 30 minutes during the night (10 pm to 5:59 am). An ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; 3. no more than 3 hours are not represented (i.e., 3 sections of 60 minutes where 0 valid readings were obtained). To summarize the 24-hour ABPM, the hourly adjusted mean was calculated. Hourly adjusted mean was the average BP for each hour of the day. The 24-hour mean was average of the hourly means. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for DBP assessed using ABPM, while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

  20. Amlodipine: Change From Baseline at Month 3 in Office DBP - Censored Data

    Time frame: Baseline and Month 3

    The mean office BP in the sitting position was used for the analysis. Office BP in the sitting position was collected with a set of 4 replicates. The average of the last 3 replicates was calculated and used for analysis. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for office DBP assessed while participants were on and within 2 weeks after stopping any escape medication was censored for this endpoint.

  21. Amlodipine: Time-adjusted Change From Baseline Through Month 3 in 24-hour Mean SBP and DBP, Assessed by ABPM - Censored Data

    Time frame: Baseline through Month 3

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for SBP and DBP, assessed using ABPM, while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

  22. Amlodipine: Time-adjusted Change From Baseline in Office SBP and DBP Through Month 3 - Censored Data

    Time frame: Baseline through Month 3

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for office SBP and DBP, while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

  23. Amlodipine: Change From Baseline at Month 6 in 24-hour Mean SBP and DBP, Assessed by ABPM - All Collected Data

    Time frame: Baseline and Month 6

    24-hour ABPM device was programmed to take readings every 20 minutes during the day (6 am to 9:59 pm) and every 30 minutes during the night (10 pm to 5:59 am). An ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; 3. no more than 3 hours are not represented (i.e., 3 sections of 60 minutes where 0 valid readings were obtained). To summarize the 24-hour ABPM, the hourly adjusted mean was calculated. Hourly adjusted mean was the average BP for each hour of the day. The 24-hour mean was average of the hourly means. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for SBP and DBP assessed by ABPM are included in the analysis for this endpoint.

  24. Amlodipine: Change From Baseline at Month 6 in Office SBP and DBP - All Collected Data

    Time frame: Baseline and Month 6

    The mean office BP in the sitting position was used for the analysis. Office BP in the sitting position was collected with a set of 4 replicates. The average of the last 3 replicates was calculated and used for analysis. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for office SBP and DBP, were included in the analysis for this endpoint.

  25. Amlodipine: Time-adjusted Change From Baseline Through Month 6 in 24-hour Mean DBP, Assessed by ABPM - All Collected Data

    Time frame: Baseline through Month 6

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for DBP assessed by ABPM were included in the analysis for this endpoint.

  26. Amlodipine: Time-adjusted Change From Baseline Through Month 6 in Office DBP - All Collected Data

    Time frame: Baseline through Month 6

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for office DBP were included in the analysis for this endpoint.

  27. Amlodipine: Change From Baseline in Daytime and Nighttime SBP and DBP by ABPM at Each Visit - All Collected Data

    Time frame: Baseline, and Month 2, 3 and 6

    ABPM device was programmed to take readings every 20 minutes during the day (6 am to 9:59 pm) and every 30 minutes during the night (10 pm to 5:59 am). An ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; and 3. no more than 3 hours are not represented (i.e., 3 sections of 60 minutes where 0 valid readings were obtained). LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for daytime and nighttime SBP and DBP, assessed by ABPM, were included in the analysis for this endpoint.

  28. Amlodipine: Percent Change From Baseline in Serum AGT

    Time frame: Baseline, Week 2 and Months 1, 2, 3, 4, 5 and 6

  29. Olmesartan: Change From Baseline at Month 3 in Office SBP - Censored Data

    Time frame: Baseline and Month 3

    The mean office BP in the sitting position was used for the analysis. Office BP in the sitting position was collected with a set of 4 replicates. The average of the last 3 replicates was calculated and used for analysis. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for office SBP assessed while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

  30. Olmesartan: Time-adjusted Change From Baseline Through Month 6 in 24-hour Mean SBP, Assessed by ABPM - All Collected Data

    Time frame: Baseline through Month 6

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for SBP assessed by ABPM, were included in the analysis for this endpoint.

  31. Olmesartan: Time-adjusted Change From Baseline Through Month 6 in Office SBP - All Collected Data

    Time frame: Baseline through Month 6

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for office SBP were included in the analysis for this endpoint.

  32. Olmesartan: Percentage of Participants With 24-hour Mean SBP <130 mmHg and/or Reduction From Baseline ≥20 mmHg Assessed by ABPM Without Escape Antihypertensive Medications at Month 6

    Time frame: Month 6

    24-hour ABPM device was programmed to take readings every 20 minutes during the day (6 am to 9:59 pm) and every 30 minutes during the night (10 pm to 5:59 am). An ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; 3. no more than 3 hours are not represented (i.e., 3 sections of 60 minutes where 0 valid readings were obtained). To summarize the 24-hour ABPM, the hourly adjusted mean was calculated. Hourly adjusted mean was the average of BP for each hour of the day. The 24-hour mean was average of the hourly means.

  33. Olmesartan: Change From Baseline at Month 3 in 24-hour Mean DBP, Assessed by ABPM - Censored Data

    Time frame: Baseline and Month 3

    24-hour ABPM device was programmed to take readings every 20 minutes during the day (6 am to 9:59 pm) and every 30 minutes during the night (10 pm to 5:59 am). An ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; 3. no more than 3 hours are not represented (i.e., 3 sections of 60 minutes where 0 valid readings were obtained). To summarize the 24-hour ABPM, the hourly adjusted mean was calculated. Hourly adjusted mean was the average BP for each hour of the day. The 24-hour mean was average of the hourly means. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for DBP assessed using ABPM, while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

  34. Olmesartan: Change From Baseline at Month 3 in Office DBP - Censored Data

    Time frame: Baseline and Month 3

    The mean office BP in the sitting position was used for the analysis. Office BP in the sitting position was collected with a set of 4 replicates. The average of the last 3 replicates was calculated and used for analysis. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for office DBP assessed while participants were on and within 2 weeks after stopping any escape medication was censored for this endpoint.

  35. Olmesartan: Time-adjusted Change From Baseline Through Month 3 in 24-hour Mean SBP and DBP, Assessed by ABPM - Censored Data

    Time frame: Baseline through Month 3

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for SBP and DBP, assessed using ABPM, while participants were on and within 2 weeks after stopping any escape medication were censored for this endpoint.

  36. Olmesartan: Time-adjusted Change From Baseline in Office SBP and DBP Through Month 3 - Censored Data

    Time frame: Baseline through Month 3

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Hypothetical strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., data for office SBP and DBP, while participants were on and within 2 weeks after stopping any escape medication was censored for this endpoint.

  37. Olmesartan: Change From Baseline at Month 6 in 24-hour Mean SBP and DBP, Assessed by ABPM - All Collected Data

    Time frame: Baseline and Month 6

    24-hour ABPM device was programmed to take readings every 20 minutes during the day (6 am to 9:59 pm) and every 30 minutes during the night (10 pm to 5:59 am). An ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; 3. no more than 3 hours are not represented (i.e., 3 sections of 60 minutes where 0 valid readings were obtained). To summarize the 24-hour ABPM, the hourly adjusted mean was calculated. Hourly adjusted mean was the average BP for each hour of the day. The 24-hour mean was average of the hourly means. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for SBP and DBP assessed by ABPM are included in the analysis for this endpoint.

  38. Olmesartan: Change From Baseline at Month 6 in Office SBP and DBP - All Collected Data

    Time frame: Baseline and Month 6

    The mean office BP in the sitting position was used for the analysis. Office BP in the sitting position was collected with a set of 4 replicates. The average of the last 3 replicates was calculated and used for analysis. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for office SBP and DBP, were included in the analysis for this endpoint.

  39. Olmesartan: Time-adjusted Change From Baseline Through Month 6 in 24-hour Mean DBP, Assessed by ABPM - All Collected Data

    Time frame: Baseline through Month 6

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for DBP assessed by ABPM were included in the analysis for this endpoint.

  40. Olmesartan: Time-adjusted Change From Baseline Through Month 6 in Office DBP - All Collected Data

    Time frame: Baseline through Month 6

    Time-adjusted change was defined as the AUC of BP change from baseline divided by the duration of the time period. LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for office DBP were included in the analysis for this endpoint.

  41. Olmesartan: Change From Baseline in Daytime and Nighttime SBP and DBP by ABPM at Each Visit - All Collected Data

    Time frame: Baseline, and Month 2, 3 and 6

    ABPM device was programmed to take readings every 20 minutes during the day (6 am to 9:59 pm) and every 30 minutes during the night (10 pm to 5:59 am). An ABPM was considered adequate if: 1. the number of successful daytime readings were ≥33; 2. the number of successful nighttime readings were ≥11; and 3. no more than 3 hours are not represented (i.e., 3 sections of 60 minutes where 0 valid readings were obtained). LS mean and SE were calculated using a MMRM approach. Treatment policy strategy was used for the intercurrent event of using antihypertensive escape medication, i.e., all collected data for daytime and nighttime SBP and DBP, assessed by ABPM, were included in the analysis for this endpoint.

  42. Olmesartan: Percent Change From Baseline in Serum AGT

    Time frame: Baseline, Week 2 and Months 1, 2, 3, 4, 5 and 6

Sponsors and collaborators

Lead sponsor

Alnylam Pharmaceuticals

Industry

Registry information

Official study title

A Randomized, Double-blind, Placebo-controlled, Multicenter Study to Evaluate the Efficacy and Safety of Zilebesiran Used as Add-on Therapy in Patients With Hypertension Not Adequately Controlled by a Standard of Care Antihypertensive Medication

Acronym: KARDIA-2

Important dates

Study start
2021
Primary completion
2023
Study completion
2024
First posted
Nov 2, 2021
Registry last updated
Nov 3, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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