Here is the design of a clinical trial:

Official Title: A Cluster Randomised Controlled Trial of M-health Enabled, Nurse Care Coordinator Led Intervention to Improve Management of Hypertension in India: m-Power Heart Project

Included conditions:
- Hypertension

Study Armgroups:
- {'label': 'Intervention', 'type': 'ACTIVE_COMPARATOR', 'description': 'Trained NCC together with electronic decision support system', 'interventionNames': ['Other: Intervention']}
- {'label': 'Control', 'type': 'OTHER', 'description': 'No trained NCC and electronic decision support system', 'interventionNames': ['Other: Control']}

Interventions:
- {'type': 'OTHER', 'name': 'Intervention', 'description': 'A trained nurse care coordinator enabled with a electronic decision support system placed at the CHCs to share the task of management of hypertension.', 'armGroupLabels': ['Intervention']}
- {'type': 'OTHER', 'name': 'Control', 'description': 'No NCC or EDSS will be placed in the CHCs. Doctors working in the CHCs will be given training (one day) on evidence based management of hypertension', 'armGroupLabels': ['Control']}

Primary Outcomes:
- {'measure': 'Difference in the mean systolic blood pressure', 'description': 'Difference in the mean systolic blood pressure between the intervention and control arm at the end of the intervention', 'timeFrame': '12 months'}

Please estimate the sample size based on the assumption: 
significance at 5%, power of 80%, attrition rate of 20%
Sample size
        The sample size has been calculated based on the following â significance at 5%, power of 80%, mean difference in SBP of 6.5Â mmHg between the intervention and standard treatment arms, standard deviation (SD) of SBP of 17, intracluster coefficient of 0.03 (estimated from the baseline study of a comprehensive diabetes and hypertension prevention and management program entitled UDAY in Visakhapatnam) and attrition rate of 20%. The sample size will be 936 participants from six CHCs in each arm, which totals to 1872 from 12 CHCs.