Please assess the completion status of the following clinical trial:

Trial Title: Evaluation of Diphenhydramine Hydrochloride Effects in Subjects With Occasional Sleeplessness

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

Eligibility Criteria:
Inclusion Criteria:~* be male or female subjects, ≥18 years of age to 55 years of age, who report that they are currently experiencing occasional sleeplessness characterized by difficulty initiating sleep (ie, taking ≥30 minutes to fall asleep) on average 2-4 times per week for less than 1 month;~* be in good general health without clinically significant disease (no previously diagnosed sleep disorders);~* if female, have a negative screening pregnancy test and agree to be on approved methods of birth control throughout the study~Exclusion Criteria:~* have a clinically significant illness within 30 days of Screening;~* are taking medication that could interfere with the study medication;~* have been under a clinician's care for insomnia treatment and control within the past year or has a history of insomnia or is currently taking prescription medications for insomnia;~* are currently taking medications known to effect sleep function;~* have current or past history of serious, severe or unstable physical or psychiatric illness;~* have current diagnosis of severe urinary retention;~* have current diagnosis of untreated narrow angle glaucoma;~* had participated in a clinical drug study or used an investigational new drug during the previous 30 days;~* have any clinically significant or abnormal finding in physical examination, vital signs, ECG, or clinical laboratory tests that may affect the subject's safety or outcome of the study;

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

Study Arms:
- Diphenhydramine Hydrochloride (Type: EXPERIMENTAL): Diphenhydramine (50 mg) elixir taken when subjects had trouble falling asleep
- Placebo (Type: PLACEBO_COMPARATOR): Placebo elixir taken when subjects had trouble falling asleep

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