Please assess the completion status of the following clinical trial:

Trial Title: Effect of Citalopram on Chest Pain in Patients With Functional Chest Pain

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Written informed consent~* Minimum age: 18 years~* Functional chest pain according to Rome IV criteria~* Ruled out cardiac origin of chest pain~* ECG with corrected QT interval (QTc) within the normal range (\<450ms male, \<460ms female)~* Symptoms of chest pain for at least 6 months~* Frequency of symptoms at least once a week~* Gastroduodenoscopy, high-resolution manometry and 24-hour pH-impedance monitoring need to have been performed recently.~Exclusion Criteria:~* Currently using antidepressants~* Contraindication for the use of SSRI~* Already tried antidepressants off-label to treat chest pain~* Known allergy to citalopram~* Severe and clinically unstable concomitant disease~* Pregnant, lactating or fertile women (without contraception)

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Citalopram 20mg (Type: ACTIVE_COMPARATOR): None
- Placebo (Type: PLACEBO_COMPARATOR): None

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