Please assess the completion status of the following clinical trial:

Trial Title: Trial of Azithromycin vs. Doxycycline for the Treatment of Rectal Chlamydia in MSM

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

Eligibility Criteria:
Inclusion Criteria:~1. Willing and able to understand and provide written informed consent before initiation of any study procedures.~2. Willing and able to comply with planned study procedures for all study visits.~3. Male sex at birth and aged = / \> 18 years with valid contact information.~4. At least one male sex partner (oral or anal) in the past 12 months.~5. Untreated rectal CT diagnosed by a positive NAAT result.~6. Willingness to abstain from condomless receptive anal sex during the trial.~7. Willingness to complete a 7-day study drug regimen.~Exclusion Criteria:~1. Current clinical diagnosis of acute proctitis per the CDC's 2015 STD Treatment Guidelines: symptoms of anorectal pain, tenesmus, and/or rectal discharge with anoscopy findings confirming inflammation.~2. Concomitant untreated gonorrhea (rectal, pharyngeal, or urethral) or known exposure to gonorrhea in the time between CT testing and study enrollment.~3. Clinical diagnosis of concomitant untreated primary or secondary syphilis.~4. Known allergy to tetracyclines or macrolides.~5. Received antimicrobial therapy active against C. trachomatis within 21 days of positive rectal CT NAAT result, or between the positive CT NAAT result and study enrollment\*.~   \*This includes subjects treated empirically on the day of testing due to known exposure to gonorrhea or chlamydia, as well as enrollment in another study using antimicrobial therapy active against C. trachomatis, or planned enrollment in such a study during their time in this trial. Specifically, use of the following antibiotics is an exclusion criterion: azithromycin and other macrolides, doxycycline and related tetra- or glycylcyclines, fluoroquinolones, rifampin, quinupristin-dalfopristin, and linezolid.~6. Plans to move to another location that would preclude study follow-up appointments in clinic or by mail-in in the next 30 days.~7. Use of any investigational drug contraindicated to treatment with azithromycin or doxycycline within 7 days before enrollment.~8. Previous enrollment in this trial.~9. Any other condition that, in the opinion of the investigator, would interfere with participation in the trial.

- Gender: MALE
- Minimum Age: 18 Years
- Maximum Age: 99 Years
- Healthy Volunteers: f

Study Arms:
- Arm 1 (Type: EXPERIMENTAL): 1 gram of Azithromycin (4 capsules of 250 mg) administered orally as a single dose on Day 1, and Doxycycline placebo (1 capsule) administered orally twice daily for 7 days starting on Day 1. N=123
- Arm 2 (Type: EXPERIMENTAL): 100 mg of Doxycycline (1 capsule) administered orally twice daily for 7 days starting on Day 1, and Azithromycin placebo (4 capsules) administered orally as a single dose on Day 1. N=123

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

Answer: outcome: complete