Please assess the completion status of the following clinical trial:

Trial Title: Anti-histamines Promote Electroacupuncture Analgesia: Basic and Clinical Research

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~1. . Age: 20 to 30 years of age.~2. . Agrees to undergo a comprehensive medical history and physical examination.~3. . No history of analgesic, sedative, dietary/appetite medication intake for more than 3 weeks prior to enrolment.~Exclusion Criteria:~1. . An ongoing medical condition that requires active medical intervention or monitoring to avert serious danger to the participant's health or well-being (e.g., hypertension, diabetes mellitus, or epilepsy).~2. . A compromised skin barrier (e.g., skin disease, allergy) that would interfere with the conduct of the EA procedure and assessments of the study.~3. . An implant such as a pacemaker, defibrillator, or electronic medical equipment.~4. . Pregnancy, or planning for pregnancy.

- Gender: ALL
- Minimum Age: 20 Years
- Maximum Age: 30 Years
- Healthy Volunteers: t

Study Arms:
- sham EA group (Type: SHAM_COMPARATOR): Minimal needling at ST36 and GB34 (n=10)
- true EA group (Type: EXPERIMENTAL): EA at ST36 and GB34 (n=10)
- EA+antihistamine(low dose) group (Type: ACTIVE_COMPARATOR): EA at ST36 and GB34 plus low-dose chlorpheniramine( Dexchlorpheniramine maleate 2mg/tab, 1 tab; n=10)
- EA+antihistamine(high dose) group (Type: ACTIVE_COMPARATOR): EA at ST36 and GB34 plus high-dose chlorpheniramine (Dexchlorpheniramine maleate 2mg/tab, 2 tabs; n=10)

Based on this trial design, predict the completion outcome and termination type (if applicable).