Fig 1. Consort flow diagram of patients with tuberculosis, from screening to analysis.

PBA, Phenylbutyrate; vitD₃, vitamin D₃; ¹Other reasons for not randomizing include living outside Dhaka, difficult to continue in the trial due to job- and academic activity-related problems. ²At base line two participants in the PBA-group did not receive allocation as they refused to continue in the study just after enrollment. ³There were five dropouts between enrollment and week 8, due to migration to other cities, could not be contacted or refused to continue since they moved from Dhaka to their respective village homes in the country side. ⁴Excluded from analysis: 28 patients were culture negative at baseline, among them, 3 are included in the above 5 dropouts. ⁵Excluded from analysis: seven patients had multidrug resistant tuberculosis (MDR TB) unevenly distributed among the treatment arms. ⁶There were thirty patients who discontinued the intervention between week 12 to 24, due to migration, pilgrimage, sent to jail, could not be contacted via phone or when visits to respective homes were made, refused to come to Dhaka for follow-up visits since they moved to their village homes.