Please assess the completion status of the following clinical trial:

Trial Title: Safety and Effectiveness of Alendronate for Bone Mineral Density in HIV-infected Children and Adolescents

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE2
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria (Version 2.0 of protocol):~* Documentation of HIV-1 infection~* HIV-infection acquired before puberty~* For participants receiving antiretroviral therapy, must have been on the same antiretroviral agents for at least 12 weeks prior to study entry and have a viral load less than 10,000 copies/mL. For participants not receiving antiretroviral therapy, must have not been on antiretroviral agents for at least 12 weeks prior to study entry and have no indication for therapy~* Lumbar spine DXA BMD z-score less than -1.5 or history of fragility fracture within the prior 12 months (regardless of DXA result).~* Available for routine dental exam and care every 6 months~* Demonstrated ability and willingness to swallow study medications~* Females of reproductive potential must have had a negative pregnancy test at screening and within 48 hours prior to study entry. They must also have agreed to avoid pregnancy while on the study and if engaging in sexual activity, use at least two forms of contraception.~* Parent or legal guardian able and willing to provide signed informed consent for children who could not provide consent for themselves.~Exclusion Criteria (Version 2.0 of protocol):~* Body weight more than 300 lbs.~* For female participants: if on Depo-Provera, they must have been on it for at least 1 year prior to study entry; if not on Depa-Provera, they must have not been on it for at least 1 year prior to study entry.~* Anticonvulsant therapy~* Proven growth hormone deficiency~* Use of growth hormone in the 12 months prior to entry~* Primary hyperparathyroidism~* Hypoparathyroidism~* Renal failure~* Cushing syndrome~* Active dental infection~* Dental or periodontal disease expected to require more than basic restorative care~* Pregnancy or lactation~* Esophageal or gastric ulcer, chronic nonsteroidal anti-inflammatory drug (NSAID) use, or aspirin use~* Tenofovir disoproxil fumarate (TDF): if on TDF, they must have been on it for at least 6 months prior to study entry; if not on TDF, they must have not been on it for at least 6 months prior to study entry.~* Hemoglobin less than 10 g/dL~* Any past pharmacologic treatment (except vitamin D and/or calcium supplementation) for low bone density~* Inability to stand or sit upright for at least 30 minutes~* Hypersensitivity to any component of alendronate~* Hypocalcemia (less than the lower limit of normal established by the local laboratory in which it was performed)~* Known abnormalities of the esophagus that delay esophageal emptying such as stricture or achalasia~* 25-OH vitamin D less than 10 ng/mL in combination with elevated intact PTH above the upper limit of normal for the local laboratory in which it was performed

- Gender: ALL
- Minimum Age: 11 Years
- Maximum Age: 24 Years
- Healthy Volunteers: f

Study Arms:
- 1A: Alendronate/Alendronate (Type: EXPERIMENTAL): Participants received alendronate for 96 weeks and calcium carbonate/vitamin D for 144 weeks
- 1B: Alendronate/Placebo (Type: EXPERIMENTAL): Participants received alendronate for 48 weeks followed by placebo for 48 weeks and calcium carbonate/vitamin D for 144 weeks
- 2: Placebo/Alendronate (Type: EXPERIMENTAL): Participants received placebo for 48 weeks followed by alendronate for 48 weeks and calcium carbonate/vitamin D for 144 weeks

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

Answer: outcome: complete