Please assess the completion status of the following clinical trial:

Trial Title: RCE With FMT in the Treatment of Childhood Constipation

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

Eligibility Criteria:
Inclusion criteria:~* 4-14 years old;~* Roman IV criteria for childhood constipation;~* After a course of PEG and a course of Chinese medicine treatment was ineffective;~* Barium enema showing fecal impaction.~Exclusion criteria:~* Congenital and/or acquired intestinal diseases, such as congenital megacolon, intestinal stenosis, polyps, Crohn's disease, tuberculosis, inflammation, and tumors;~* Anorectal diseases, such as anal atresia, fistula, abscess, and tumor;~* Neurological diseases, such as brain and spinal cord diseases;~* genetic metabolic diseases;~* psychosocial and behavioral diseases;~* other systemic diseases;~* Refused to participate in.

- Gender: ALL
- Minimum Age: 4 Years
- Maximum Age: 14 Years
- Healthy Volunteers: t

Study Arms:
- Fecal supernatant (Type: ACTIVE_COMPARATOR): Fecal supernatant is used for treatment of childhood Constipation
- non-Fecal supernatant (Type: PLACEBO_COMPARATOR): Placebo is used for treatment of childhood Constipation

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