Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Study of Vitamin D Supplementation to Male HIV Sero-positive Patients
Brief Summary: The investigators want to investigate if HIV sero-positive males benefit from vitamin D supplementation. The study runs in 16 weeks and the participants are treated with one of three placebo controlled regimes (tablets):

1. Calcium
2. Calcium and 25-hydroxy-vitamin D
3. Calcium and 25-hydroxy-vitamin D and 1,25-dihydroxyvitamin D

The endpoints are:

* Serum vitamin D
* Parathyroid hormone
* ionized calcium
* T-lymphocyte fractions (naïve, mature, Tregs)
* Osteocalcin (bone metabolism)


Options:
A: Arm Label: A: tenofovir/vitamin D; Type: EXPERIMENTAL; Interventions: Dietary Supplement: Vitamin D supplement | Arm Label: B: tenofovir/placebo; Type: PLACEBO_COMPARATOR; Interventions: Other: Placebo | Arm Label: C: no tenofovir/vitamin D; Type: EXPERIMENTAL; Interventions: Dietary Supplement: Vitamin D supplement | Arm Label: D: no tenofovir/placebo; Type: PLACEBO_COMPARATOR; Interventions: Other: Placebo | Intervention Type: DIETARY_SUPPLEMENT; Name: Vitamin D supplement; Assigned to Arm(s): A: tenofovir/vitamin D, C: no tenofovir/vitamin D | Intervention Type: OTHER; Name: Placebo; Assigned to Arm(s): B: tenofovir/placebo, D: no tenofovir/placebo
B: Arm Label: Arm A: EFV/FTC/TDF plus vitamin D3 and calcium carbonate; Type: EXPERIMENTAL; Interventions: Drug: EFV/FTC/TDF, Drug: Calcium Carbonate, Drug: Vitamin D3 | Arm Label: Arm B: EFV/FTC/TDF plus vitamin D placebo and calcium placebo; Type: EXPERIMENTAL; Interventions: Drug: EFV/FTC/TDF, Drug: Placebo for calcium carbonate, Drug: Placebo for vitamin D3 | Intervention Type: DRUG; Name: EFV/FTC/TDF; Assigned to Arm(s): Arm A: EFV/FTC/TDF plus vitamin D3 and calcium carbonate, Arm B: EFV/FTC/TDF plus vitamin D placebo and calcium placebo | Intervention Type: DRUG; Name: Calcium Carbonate; Assigned to Arm(s): Arm A: EFV/FTC/TDF plus vitamin D3 and calcium carbonate | Intervention Type: DRUG; Name: Vitamin D3; Assigned to Arm(s): Arm A: EFV/FTC/TDF plus vitamin D3 and calcium carbonate | Intervention Type: DRUG; Name: Placebo for calcium carbonate; Assigned to Arm(s): Arm B: EFV/FTC/TDF plus vitamin D placebo and calcium placebo | Intervention Type: DRUG; Name: Placebo for vitamin D3; Assigned to Arm(s): Arm B: EFV/FTC/TDF plus vitamin D placebo and calcium placebo
C: Arm Label: Multiple RDA multivitamins; Type: ACTIVE_COMPARATOR; Interventions: Dietary Supplement: Multivitamins (including B, C and E) | Arm Label: Single RDA Multivitamins; Type: ACTIVE_COMPARATOR; Interventions: Dietary Supplement: Multivitamins B, C and E | Intervention Type: DIETARY_SUPPLEMENT; Name: Multivitamins (including B, C and E); Assigned to Arm(s): Multiple RDA multivitamins | Intervention Type: DIETARY_SUPPLEMENT; Name: Multivitamins B, C and E; Assigned to Arm(s): Single RDA Multivitamins
D: Arm Label: "Strong vitamin D"; Type: EXPERIMENTAL; Interventions: Drug: Rocaltrol, Drug: Vitamin D, Drug: Calcium | Arm Label: Vitamin D; Type: ACTIVE_COMPARATOR; Interventions: Drug: Vitamin D, Drug: Calcium | Arm Label: Calcium; Type: PLACEBO_COMPARATOR; Interventions: Drug: Calcium | Intervention Type: DRUG; Name: Rocaltrol; Assigned to Arm(s): "Strong vitamin D" | Intervention Type: DRUG; Name: Vitamin D; Assigned to Arm(s): "Strong vitamin D", Vitamin D | Intervention Type: DRUG; Name: Calcium; Assigned to Arm(s): "Strong vitamin D", Calcium, Vitamin D

Answer: D