Geneva, March 23 -- International Clinical Trials Registry received information related to the study (ChiCTR2600120008) titled 'ED90 of phenylephrine to prevent spinal anesthesia-induced hypotension during elective cesarean section in the supine position--An Up-Down Sequential Allocation Dose-Response Study' on March 7.

Study Type: Interventional study

Study Design: Single arm

Primary Sponsor: Shanghai First Maternal and Infant Hospital

Condition: Spinal anesthesia-induced hypotension

Intervention: Supine Dose-Escalation Cohort:Up-and-down sequential dose-response trial: Each subject received prophylactic phenylephrine after anesthesia positioning. Initial dose 40µg, subsequent doses adjusted based on the previous subject's ...