Please assess the completion status of the following clinical trial:

Trial Title: Comparative Abuse Liability Among African American and White Smokers

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

Eligibility Criteria:
Inclusion Criteria:~* Non-Hispanic African American or white/Caucasian,~* ≥21 years old, smoke 5-30 cigarettes per day,~* daily cigarette smoker~* smoked at current rate for at least 6 months~* interested in trying e-cigarettes and heat not burn products~* not interested in or unable/unwilling to quit cigarette smoking~* willing to complete three in-person study visits~* willing to have IV catheter placed~Exclusion Criteria:~* Interested in quitting cigarettes in the next 30 days~* use of smoking cessation pharmacotherapy in the past 30 days~* use of non-cigarette tobacco products in the past 30 days~* use of e-cigarettes \>5x in lifetime~* use of e-cigarettes ≥4 of the past 30 days~* use of heat not burn products \>5x in lifetime~* use of heat not burn products ≥4 of the past 30 days~* weight \< 110 lbs~* uncontrolled hypertension (systolic BP ≥ 180 or diastolic BP ≥ 105)~* pregnant, plans to become pregnant, or breastfeeding~* live \>10 miles from study site (Fairway CRU)~* current enrollment is a research study or program that aims to alter tobacco use

- Gender: ALL
- Minimum Age: 21 Years
- Maximum Age: None
- Healthy Volunteers: t

Study Arms:
- E-Cigarette then Heat not burn. (Type: ACTIVE_COMPARATOR): We will use a 1:1 fashion randomization to product order (combustible cigarette, e-cigarette, heat-not-burn device.
- Heat not burn then E-Cigarette (Type: ACTIVE_COMPARATOR): We will use a 1:1 fashion randomization to product order combustible cigarette, heat-not-burn device, e-cigarette.

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