Study: NCT03472508

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Folic Acid
Description: Folic acid used in this study are listed products. All drugs used in the double-blind treatment period of this study will be loaded into safety capsules with the same outer appearance; all parties involved in the trial will be unaware of the contents of the capsules.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Folic Acid
Description: Folic acid used in this study are listed products. All drugs used in the double-blind treatment period of this study will be loaded into safety capsules with the same outer appearance; all parties involved in the trial will be unaware of the contents of the capsules.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Enalapril Maleate and Folic Acid Tablets (Yiye)
Description: Enalapril Maleate and Folic Acid Tablets (Yiye) have been approved for listing by the China Food and Drug Administration. Approval number: Zhunzi H20103723.All drugs used in the double-blind treatment period of this study will be loaded into safety capsules with the same outer appearance; all parties involved in the trial will be unaware of the contents of the capsules.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Enalapril Maleate and Folic Acid Tablets (Yiye)
Description: Enalapril Maleate and Folic Acid Tablets (Yiye) have been approved for listing by the China Food and Drug Administration. Approval number: Zhunzi H20103723.All drugs used in the double-blind treatment period of this study will be loaded into safety capsules with the same outer appearance; all parties involved in the trial will be unaware of the contents of the capsules.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Enalapril Maleate and Folic Acid Tablets (Yiye)
Description: Enalapril Maleate and Folic Acid Tablets (Yiye) have been approved for listing by the China Food and Drug Administration. Approval number: Zhunzi H20103723.All drugs used in the double-blind treatment period of this study will be loaded into safety capsules with the same outer appearance; all parties involved in the trial will be unaware of the contents of the capsules.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Enalapril Maleate and Folic Acid Tablets (Yiye)
Description: Enalapril Maleate and Folic Acid Tablets (Yiye) have been approved for listing by the China Food and Drug Administration. Approval number: Zhunzi H20103723.All drugs used in the double-blind treatment period of this study will be loaded into safety capsules with the same outer appearance; all parties involved in the trial will be unaware of the contents of the capsules.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Enalapril Maleate and Folic Acid Tablets (Yiye)
Description: Enalapril Maleate and Folic Acid Tablets (Yiye) have been approved for listing by the China Food and Drug Administration. Approval number: Zhunzi H20103723.All drugs used in the double-blind treatment period of this study will be loaded into safety capsules with the same outer appearance; all parties involved in the trial will be unaware of the contents of the capsules.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Enalapril Maleate and Folic Acid Tablets (Yiye)
Description: Enalapril Maleate and Folic Acid Tablets (Yiye) have been approved for listing by the China Food and Drug Administration. Approval number: Zhunzi H20103723.All drugs used in the double-blind treatment period of this study will be loaded into safety capsules with the same outer appearance; all parties involved in the trial will be unaware of the contents of the capsules.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Enalapril Maleate and Folic Acid Tablets (Yiye)
Description: Enalapril Maleate and Folic Acid Tablets (Yiye) have been approved for listing by the China Food and Drug Administration. Approval number: Zhunzi H20103723.All drugs used in the double-blind treatment period of this study will be loaded into safety capsules with the same outer appearance; all parties involved in the trial will be unaware of the contents of the capsules.

Intervention type: DRUG
Group type: SHAM_COMPARATOR
Intervention: Enalapril
Description: Enalapril used in this study are listed products. All drugs used in the double-blind treatment period of this study will be loaded into safety capsules with the same outer appearance; all parties involved in the trial will be unaware of the contents of the capsules.