Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Lao Zinc Study: The Effects of Two Forms of Daily Preventive Zinc Supplementation Versus Therapeutic Zinc Supplementation for Diarrhea on Young Children's Physical Growth and Risk of New Episodes of Diarrhea
Brief Summary: The study will be conducted as a community-based, randomized, placebo-controlled, trial with four study groups. The overall objective of the study is to determine the optimal method for delivering zinc to young children, both for the prevention of zinc deficiency and treatment of diarrhea. In particular, the investigators plan to compare the impact on physical growth, morbidity, micronutrient status, immune function, environmental enteric dysfunction, parasite burden and hair cortisol concentration of: 1) daily preventive zinc supplementation as a micronutrient powder (MNP); 2) placebo powders; 3) daily preventive zinc supplementation as dispersible tablets; 4) therapeutic zinc supplementation as dispersible tablets given in relation to episodes of diarrhea.

In addition to the major outcomes mentioned above, the investigators will monitor adherence to the interventions, neuro-behavioral development, and the occurrence of any adverse events.


Options:
A: Arm Label: a; Type: EXPERIMENTAL; Interventions: Drug: Glutamine | Arm Label: b; Type: EXPERIMENTAL; Interventions: Drug: Vitamin A, Drug: zinc | Arm Label: c; Type: ACTIVE_COMPARATOR; Interventions: Drug: Vitamin A, Drug: zinc | Arm Label: d; Type: PLACEBO_COMPARATOR; Interventions: Drug: glycine | Arm Label: e; Type: PLACEBO_COMPARATOR; Interventions: Drug: Vitamin A, Drug: zinc | Arm Label: f; Type: EXPERIMENTAL; Interventions: Drug: Vitamin A, Drug: zinc | Intervention Type: DRUG; Name: Glutamine; Assigned to Arm(s): a | Intervention Type: DRUG; Name: Vitamin A; Assigned to Arm(s): b, c, e, f | Intervention Type: DRUG; Name: glycine; Assigned to Arm(s): d | Intervention Type: DRUG; Name: zinc; Assigned to Arm(s): b, c, e, f
B: Arm Label: micronutrient powder (MNP); Type: ACTIVE_COMPARATOR; Interventions: Dietary Supplement: MNP, Dietary Supplement: therapeutic placebo supplement | Arm Label: placebo powder; Type: PLACEBO_COMPARATOR; Interventions: Dietary Supplement: therapeutic placebo supplement, Dietary Supplement: placebo powder | Arm Label: preventive zinc supplements; Type: ACTIVE_COMPARATOR; Interventions: Dietary Supplement: preventive zinc supplement, Dietary Supplement: therapeutic placebo supplement | Arm Label: therapeutic zinc supplements; Type: ACTIVE_COMPARATOR; Interventions: Dietary Supplement: therapeutic zinc supplement, Dietary Supplement: preventive placebo supplement | Intervention Type: DIETARY_SUPPLEMENT; Name: MNP; Assigned to Arm(s): micronutrient powder (MNP) | Intervention Type: DIETARY_SUPPLEMENT; Name: preventive zinc supplement; Assigned to Arm(s): preventive zinc supplements | Intervention Type: DIETARY_SUPPLEMENT; Name: therapeutic zinc supplement; Assigned to Arm(s): therapeutic zinc supplements | Intervention Type: DIETARY_SUPPLEMENT; Name: preventive placebo supplement; Assigned to Arm(s): therapeutic zinc supplements | Intervention Type: DIETARY_SUPPLEMENT; Name: therapeutic placebo supplement; Assigned to Arm(s): micronutrient powder (MNP), placebo powder, preventive zinc supplements | Intervention Type: DIETARY_SUPPLEMENT; Name: placebo powder; Assigned to Arm(s): placebo powder
C: Arm Label: Multivitamins; Type: ACTIVE_COMPARATOR; Interventions: Dietary Supplement: Multivitamins-vitamins B-complex, C, and E | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Dietary Supplement: Placebo | Intervention Type: DIETARY_SUPPLEMENT; Name: Multivitamins-vitamins B-complex, C, and E; Assigned to Arm(s): Multivitamins | Intervention Type: DIETARY_SUPPLEMENT; Name: Placebo; Assigned to Arm(s): Placebo
D: Arm Label: 1; Type: EXPERIMENTAL; Interventions: Drug: Zinc and vitamin A single dose at enrollment | Arm Label: 2; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo and vitamin A single dose at enrollment | Intervention Type: DRUG; Name: Zinc and vitamin A single dose at enrollment; Assigned to Arm(s): 1 | Intervention Type: DRUG; Name: Placebo and vitamin A single dose at enrollment; Assigned to Arm(s): 2

Answer: B