Please assess the completion status of the following clinical trial:

Trial Title: Effects of Pentazocine on Manic Symptoms

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE2
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Young Mania Rating Scale (YMRS) greater than 14~* Inpatient~Exclusion Criteria:~* History of opiate abuse/dependence~* Recent history of substance abuse~* Pregnancy~* Unstable medical issues~* Use of opiate medications for pain management

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 60 Years
- Healthy Volunteers: f

Study Arms:
- Pentazocine/Talwin (Type: EXPERIMENTAL): Talwin NX

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