Study: NCT04119947

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: SY-009
Description: The study will be initiated in healthy subjects at a 0.5mg dose that is the maximum recommended starting dose(MRSD) . Doses will be escalated in subsequent dosing process, after appropriate review of safety data. The subsequent planned doses are 2,5, 10, 20, 40mg successively. The increment of the dose escalation may be reduced, a lower dose may be administered following data review.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: SY-009
Description: The study will be initiated in healthy subjects at a 0.5mg dose that is the maximum recommended starting dose(MRSD) . Doses will be escalated in subsequent dosing process, after appropriate review of safety data. The subsequent planned doses are 2,5, 10, 20, 40mg successively. The increment of the dose escalation may be reduced, a lower dose may be administered following data review.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: SY-009
Description: The study will be initiated in healthy subjects at a 0.5mg dose that is the maximum recommended starting dose(MRSD) . Doses will be escalated in subsequent dosing process, after appropriate review of safety data. The subsequent planned doses are 2,5, 10, 20, 40mg successively. The increment of the dose escalation may be reduced, a lower dose may be administered following data review.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: SY-009
Description: The study will be initiated in healthy subjects at a 0.5mg dose that is the maximum recommended starting dose(MRSD) . Doses will be escalated in subsequent dosing process, after appropriate review of safety data. The subsequent planned doses are 2,5, 10, 20, 40mg successively. The increment of the dose escalation may be reduced, a lower dose may be administered following data review.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: SY-009
Description: The study will be initiated in healthy subjects at a 0.5mg dose that is the maximum recommended starting dose(MRSD) . Doses will be escalated in subsequent dosing process, after appropriate review of safety data. The subsequent planned doses are 2,5, 10, 20, 40mg successively. The increment of the dose escalation may be reduced, a lower dose may be administered following data review.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: SY-009
Description: The study will be initiated in healthy subjects at a 0.5mg dose that is the maximum recommended starting dose(MRSD) . Doses will be escalated in subsequent dosing process, after appropriate review of safety data. The subsequent planned doses are 2,5, 10, 20, 40mg successively. The increment of the dose escalation may be reduced, a lower dose may be administered following data review.

Intervention type: DRUG
Group type: PLACEBO_COMPARATOR
Intervention: SY-009
Description: The study will be initiated in healthy subjects at a 0.5mg dose that is the maximum recommended starting dose(MRSD) . Doses will be escalated in subsequent dosing process, after appropriate review of safety data. The subsequent planned doses are 2,5, 10, 20, 40mg successively. The increment of the dose escalation may be reduced, a lower dose may be administered following data review.