Please assess the completion status of the following clinical trial:

Trial Title: Laxative Effectiveness of a Phytotherapeutic Tea

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: SINGLE
- Phase: PHASE2
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion criteria:~* patients with 18 to 55 years old with chronic constipation according to the criteria of the American Association of Gastroenterology (AAG);~* patients should present good understanding and collaboration capacity, an not be in use of other medications with effects on the intestinal habit;~* patients with no abnormalities in the exams;~* willing to sign a written informed consent;~* women in fertile age should make use of appropriate anti-conception.~Exclusion Criteria:~* pregnant or breast feeding women;~* patients with history of abuse of alcohol or use of drugs;~* significant or not-controlled disease, except constipation.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 55 Years
- Healthy Volunteers: f

Study Arms:
- Placebo/Laxative tea crossover (Type: ACTIVE_COMPARATOR): This arm received placebo in the first period and laxative tea in the second period (after washout period of 9 days).
- Laxative tea/Placebo crossover (Type: ACTIVE_COMPARATOR): This arm received laxative tea in the first intervention period and placebo in the second intervention period (after washout period of 9 days).

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