Please assess the completion status of the following clinical trial:

Trial Title: Efficacy of Traditional Persian Medicine Preparation Versus Artificial Saliva for Radiation Induced Xerostomia

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

Eligibility Criteria:
Inclusion Criteria:~* patients with head and neck cancer who had grade 1 and 2 xerostomia (based on the Common Terminology Criteria for Adverse Events (CTCAE) Version 4.0) and finished radiotherapy at least two months before the study(22).~Exclusion Criteria:~* history of connective tissue disorder (e.g., Sjogren) other medical causes of xerostomia (such as diabetes, bowel and renal diseases), using antidepressants drugs, recurrence of cancer, end stage cancer, pregnancy, lactation history of hypersensitivity or allergy to A. digitata and M. sylvestris

- Gender: ALL
- Minimum Age: 20 Years
- Maximum Age: 70 Years
- Healthy Volunteers: f

Study Arms:
- control (Type: ACTIVE_COMPARATOR): In the control group, patients received Hypozalix (artificial saliva)spray three times per day for a period of four weeks.
- intervention (Type: EXPERIMENTAL): Patients in intervention group received sachets containing 4 grams of mixed powder of A. digitata and M. sylvestris (in a proportion of 1:1), three times per day for a period of four weeks

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