Mandar Paradkar, MBBS, DCH, MPH

Pune, India
Role: 
Staff
Senior TB Research Manager
Mandar Paradkar, MBBS, DCH, MPH

Dr. Paradkar is Senior TB Research Manager and Study Coordinator for Johns Hopkins Center for Infectious Diseases in India (JH-CIDI), and is based at the Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site (BJGMC-JHU-CRS) in Pune, India. He coordinates the Regional, Prospective, Observational Research in Tuberculosis (RePORT India) studies at the site including: Tuberculosis Research by the Indo-US Medical Partnership (CTRIUMPh) and its several ongoing biomarker substudies, the phase 1 and 2 Common protocol, RICC Pediatric Transcriptomic study (Co-PI); and he was part of TBM Kids clinical trial and its substudies. He is also currently coordinating the Genome Wide Analysis Study (RO1, GWAS, Emory University); the quantiferon study among household contacts of TB patients; the CATALYST (UNITAID) trial studying new child friendly formulations of moxifloxacin and clofazimine; and upcoming phase 1 pediatric trial of pretomanid (P2034, IMPAACT). He is currently the RePORT India Operations Working Group Chair and Junior Investigator in the consortium. He is a pediatrician by training and successfully completed the full time Master of Public Health degree through Cardiff University, UK, under the prestigious Commonwealth Scholarship Program in November, 2015. He rejoined the site in the role of study coordinator in December 2015.

In his current role, he coordinates the activities of aformentioned adult and pediatric TB study teams at the site. These activities involve regulatory documentation and reporting, recruitment of participants, ensuring the conduct of study procedures are in accordance with the study protocol, staff training, QC procedures, and regular communication with the CRS leadership, study laboratories, BJGMC faculty, local authorities for National TB Elemination Programme (NTEP) and the protocol teams on relevant subjects. His research interests are clinical epidemiology of pediatric TB, TBM, HIV-TB co-infection. He has been involved in 3 first-authored and several co-authored publications till date (https://pubmed.ncbi.nlm.nih.gov/?term=Mandar+Paradkar&sort=pubdate).

He completed his medical education in 2007 followed by pediatric post-graduation in 2009, and he worked as a pediatric intensive care registrar at Deenanath Mangeshkar Hospital, a tertiary care hospital in Pune till 2010. He then joined the BJMC-CRS in 2010 and worked for four years as a pediatric research clinician for various HIV studies, including the PROMISE study under NIH’s IMPAACT trial network. He also assisted in adult cryptococcal meningitis study under NIH’s ACTG trial network.

Dr. Paradkar was selected as the New Investigator awardee for 2011-12 by the IMPAACT network and received mentorship during the award year by Dr. Charles Mitchel (US based IMPAACT investigator). This award included participation on a network protocol development team (Dose finding, safety, and tolerance study of Raltegravir containing antiretroviral therapy in children), participation on the IMPAACT HIV complications scientific committee, and a grant award for research or training purposes. Dr. Paradkar completed the Clinical Vaccine Trials and Good Clinical Practice certificate course from Johns Hopkins University, attended the annual IMPAACT network meetings in Washington, DC, in 2011 and 2012.

Childhood ‘Omics’ and Mycobacterium tuberculosis-derived BiOsignatures (COMBO) for TB diagnosis

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2021-10-18
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The overall objective of the project is to identify Mtb- and/or host-derived biosignatures in children that can achieve World Health Organization (WHO) target product profile (TPP) accuracy thresholds for a non-sputum biomarker-based triage or diagnostic test for childhood TB. We hypothesize that...

Epidemiologic Factors Associated with TB Treatment Outcomes Across Report International Consortia

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2021-08-12
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Rationale: RePORT International was designed to enable cross-consortium data analysis. Now that a large number of consortium sites have completed participant enrollment in Common Protocol Cohort A, we can proceed with large-scale analysis of aligned RePORT data. The current study will harmonize and...

The Pharmacokinetics, Safety and Acceptability of New Child-Friendly Formulations of Clofazimine and Moxifloxacin in Children Routinely Treated for Rifampicin-Resistant Tuberculosis (CATALYST)

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2021-04-26
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PK, safety and acceptability data and practical guidance on the optimal dosing of new more child-friendly formulations of moxifloxacin and clofazimine in children are urgently needed to inform their current and future use in children with Rifampicin-Resistant TB (RR-TB). Both medications have a key...

Dynamics and immune mechanisms of QFT response in close contacts of TB cases

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2021-04-05
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Rationale: A vaccine that prevents infection with Mycobacterium tuberculosis (Mtb) (POI vaccine) is an ideal approach to TB control. As Mtb infection (MTBI) is measured indirectly (positive tuberculin skin test (TST) or interferon gamma release assay (IGRA), prevention of IGRA conversion is the...

A Nanopore Biosensor for Leveling MTB Antigens in Blood

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2021-04-01
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Purpose of the study: The inability to obtain diagnostically useful sputum specimens, or the inability to analyze non-sputum specimens, is a significant contributor to poor diagnostic sensitivity of current TB assays, leading to the WHO to call for the development of non-sputum-based biomarker or...

Identification of Biomarkers That Can Predict Progression from Latent Tuberculosis Infection to Active Tuberculosis Disease

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2020-08-23
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Purpose: The C-TRIUMPH study has identified 20 household contacts (HHC), who have progressed to active TB from its HHCs cohort (Cohort B). Immunological profiling of TB antigen induced biosignatures, profiling of transcriptional and proteomic biosignatures should provide novel insights into the...

Markers of Lung Impairment in HIV-TB Coinfected Indian Adults

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2019-12-11
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Objectives/Aims We will compare the degree of lung impairment between HIV-TB co-infected adults (HIV-TB group) and TB cases without HIV co-infection (TB group) who successfully complete TB therapy. We hypothesize that the HIV-TB group will have a greater degree of lung...

T Cell Biomarkers and T-regulatory Responses to Pediatric TB

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2019-11-21
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The goals of this study are to: Validate host T cell biomarkers for diagnosis of pediatric TB Investigate the phenotype and functions of T-regulatory cells in pediatric TB We will use cryopreserved PBMC samples from CTRIUMPH cohorts: Pediatric unconfirmed TB, confirmed TB, latest Tb, and no TB...

Inflammasome Genetics and Tuberculosis Treatment Outcomes

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2019-11-07
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Dr. Amita Gupta is a Co-PI on this study. STUDY DESIGN We will conduct a retrospective case-cohort study nested within the CTRIUMPH and EDOTS cohorts to address our study objectives. This will enable us to measure the association of polymorphisms with multiple clinical outcomes simultaneously and...

Evaluation of a Urinary Biomarker Assay for Diagnosis and Test of Cure for Tuberculosis

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2019-09-09
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Dr. Jeff Tornheim is PI of this study. METHODS This study will make use of biorepository samples from the Cohort for TB Research by the Indo-US Medical Partnership (CTRIUMPh). CTRIUMPh, funded by the US NIH and Indian Department of Biotechnology, is an academic collaboration between Johns Hopkins...

Characterization of Genomics and Metabolomics among Individuals Highly-Exposed, but Resistant to MTB Infection

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2018-12-13
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New study launched in India & South Africa to identify functional relationships between genomics & metabolomics, & to characterize fundamental biological systems underlying resistance to Mtb infection.

Host RNA Expression for Diagnosis and Monitoring of Pediatric TB in Africa and India

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2018-12-13
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We are leveraging the RePORT platform by including a cohort of Indian children together with South African children in a large validation study to study on changes in gene expression profiles during treatment for TB

Validating a Novel Functional Correlate of Immune Protection of Tuberculosis

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2018-10-03
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This C-TRIUMPH study is a longitudinal assessment of PBMC samples of progressors and non-progressors among adult household contacts of active TB patients. The purpose of the study is to probe the functional diversity of T cell responses to several of the antigens encoded by Mtb simultaneously in...

Molecular Signatures of Tuberculosis-Diabetes Interaction: Metabolomics Study

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2018-06-15
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This study is using stored samples from the Cohort for Tuberculosis Research by the Indo-US Medical Partnership (C-TRIUMPH), under the Regional Prospective Observational Research for Tuberculosis (RePORT) Network, an international TB consortium. Type 2 diabetes mellitus (DM...

Molecular Signatures of Tuberculosis-Diabetes Interaction: Transcriptomics Study

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2018-06-15
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This study is using stored samples from the Cohort for Tuberculosis Research by the Indo-US Medical Partnership (C-TRIUMPH), under the Regional Prospective Observational Research for Tuberculosis (RePORT) Network, an international TB consortium. Type 2 diabetes is an...

Validation of Transcriptional Signature to Predict Active TB Disease among Advanced HIV Patients

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2017-08-15
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This study was terminated June 20, 2021. There have been tremendous advances in the diagnosis of patients with tuberculosis (TB) based on nucleic acid amplification of bacteria in the sputum. The GenXpert MTB/RIF provides results in 2 hours. However, in HIV-infected sputum...

Biomarkers for Tuberculosis Diagnosis and Treatment Response

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2017-03-24
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This study is conducted by the Cohort for Tuberculosis Research by the Indo-US Medical Partnership (C-TRIUMPH) under the Regional Prospective Observational Research for Tuberculosis (RePORT) Network, an international TB consortium. Aims: ...

Impact of HIV and Diabetes Mellitus on TB Drug Resistance and Recurrence

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2017-03-02
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This study was terminated in January 2021. Tuberculosis (TB) is the leading cause of mortality globally. With increasing burden of HIV and diabetes mellitus (DM), there is a critical need to understand the microbial response and ensuing disease dynamics of TB in the HIV-infected and diabetic host...

Transcriptomic and Metabolomic Analysis of Microbiologically Confirmed Pediatric Tuberculosis Patients and Uninfected Household Contacts

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2016-09-01
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This study was terminated in June 2020. This study is using stored samples from the Cohort for Tuberculosis Research by the Indo-US Medical Partnership (C-TRIUMPH), under the Regional Prospective Observational Research for Tuberculosis (RePORT) Network, an international TB...

Residual Respiratory Impairment Following Pulmonary Tuberculosis

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2015-09-13
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This study is conducted by the Cohort for Tuberculosis Research by the Indo-US Medical Partnership (C-TRIUMPH) under the Regional Prospective Observational Research for Tuberculosis (RePORT) Network, an international TB consortium. Many TB patients have...

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Characterising cause of death among people treated for drug-susceptible TB in India

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2023-01-12
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The International Journal of Tuberculosis and Lung Disease
Annually, 1.5 million people die of TB.1 India has thehighest burden of TB,1 and in 2020, the case fatality ratio (CFR) among people with drug-susceptible TB was 4.3%.2 Even after treatment, mortality is more than two-fold higher among people with prior TB compared to the general population.3...

Predictive performance of interferon-gamma release assays and the tuberculin skin test for incident tuberculosis: an individual participant data meta-analysis

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2023-01-05
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EClinicalMedicine
Background: Evidence on the comparative performance of purified protein derivative tuberculin skin tests (TST) and interferon-gamma release assays (IGRA) for predicting incident active tuberculosis (TB) remains conflicting. We conducted an individual participant data meta-analysis to directly...

The Kynurenine / Tryptophan Ratio is a Sensitive Biomarker for the Diagnosis of Pediatric Tuberculosis among Indian Children

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2022-12-22
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Frontiers in Immunology
Objectives: Pediatric tuberculosis (TB) remains difficult to diagnose. The plasma kynurenine to tryptophan ratio (K/T ratio) is a potential biomarker for TB diagnosis and treatment response but has not been assessed in children. Methods: We performed a targeted diagnostic accuracy analysis of four...

Randomized Clinical Trial of High Dose Rifampicin with or without Levofloxacin versus Standard of Care for Paediatric Tuberculous Meningitis: The TBM-KIDS Trial

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2022-10-29
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Clinical Infectious Diseases
Background Pediatric tuberculous meningitis (TBM) commonly causes death or disability. In adults, high-dose rifampicin may reduce mortality. The role of fluoroquinolones remains unclear. There have been no antimicrobial treatment trials for pediatric TBM. Methods TBM-KIDS was a phase 2 open-label...

Whole Genome Sequencing Assessing Impact of Diabetes Mellitus on Tuberculosis Mutations and Type of Recurrence in India

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2022-10-06
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Clinical Infectious Diseases
Dr. Vidya Mave and colleagues concluded considerable intrahost mycobacterium tuberculosis mutation rates were present at recurrence among patients with diabetes mellitus.

Concomitant pulmonary disease is common among patients with extrapulmonary TB

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2022-08-12
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International Journal of Tuberculosis and Lung Disease
Dr. Shivakumar and his group discovered that a high proportion of patients classified as EPTB in India have concomitant PTB. Their results support the need for improved symptom and CXR screening, and recommends routine sputum TB microbiology screening of all Indian patients with EPTB.

Comparative immune responses to M. tuberculosis in individuals with latent infection or sterile protection against infection

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2022-07-13
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bioRxiv
Summary To identify immunologic targets for tuberculosis vaccines more efficacious than BCG, we investigated the immune responses that differentiate individuals with sterile protection against M. tuberculosis (Mtb) infection (TB-resisters) from those who develop latent tuberculosis infection (LTBI-...

Performance of Xpert MTB/RIF and Xpert Ultra for the diagnosis of tuberculous meningitis among Indian children

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2022-04-01
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International Journal of Tuberulosis and Lung Disease
OBJECTIVE: To assess Xpert® MTB/RIF (Xpert) and Xpert® MTB/RIF Ultra (Ultra) performance in diagnosing pediatric tuberculous meningitis (TBM). METHODS: We conducted a study among children with suspected meningoencephalitis in Pune, India. Clinical, radiological, laboratory, and treatment data were...

Host lipidome and tuberculosis treatment failure

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2022-01-06
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European Respiratory Journal
Introduction: Host lipids play important roles in tuberculosis (TB) pathogenesis. Whether host lipids at TB treatment initiation (baseline) affect subsequent treatment outcomes has not been well characterised. We used unbiased lipidomics to study the prospective association of host lipids with TB...

Baseline IL-6 is a biomarker for unfavorable tuberculosis treatment outcomes: a multi-site discovery and validation study

Post Date: 
2021-11-08
Publication: 
The European Respiratory Journal
Dr. Akshay Gupte and colleagues discovered that elevated IL-6 can predict poor treatment outcomes, showcasing a need for including IL-6 in clinical screenings.

Modern lineages of Mycobacterium tuberculosis were recently introduced in western India and demonstrate increased transmissibility

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2021-08-21
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Open Forum Infectious Diseases
Background Mycobacterium tuberculosis (Mtb) transmissibility may vary between lineages (or variants) and this may contribute to the slow decline of tuberculosis (TB) incidence. The objective of our study was to compare transmissibility across four major lineages (L1-4) of Mtb among participants...

Unhealthy alcohol use independently associated with unfavorable TB treatment outcomes among Indian men

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2021-03-10
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International Journal of Tuberculosis and Lung Disease
This study by Samyra Cox and colleagues highlights the need for integrating effective alcohol interventions into TB care.

Measuring TB drug levels in the hair in adults and children to monitor drug exposure and outcomes

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2021-01-01
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International Journal of Tuberculosis and Lung Disease
INTRODUCTION: Testing for anti-TB drugs in small hair samples may serve as a non-invasive tool to measure cumulative drug exposure and/or adherence, as these determine treatment success. We aimed to assess how well hair assays of TB drugs predict TB treatment outcomes.METHODS: A small thatch of...

Integration of metabolomics and transcriptomics reveals novel biomarkers in the blood for tuberculosis diagnosis in children

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2020-11-11
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Scientific Reports
Pediatric tuberculosis (TB) remains a major global health problem. Improved pediatric diagnostics using readily available biosources are urgently needed. We used liquid chromatography-mass spectrometry to analyze plasma metabolite profiles of Indian children with active TB (n = 16) and age- and sex...

Assessment of persistent depression among TB patients

Post Date: 
2020-11-01
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International Journal of Tuberculosis and Lung Disease
(No abstract available)

Tuberculosis preventive treatment should be considered for all household contacts of pulmonary tuberculosis patients in India

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2020-07-29
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PLoS One
PLoS One: Dr. Mandar Paradkar and colleagues conducted a CTRIUMPH study that supports TB preventive therapy for all household contacts of pulmonary TB patients in India

Mullen Scales of Early Learning Adaptation for Assessment of Indian Children and Application to Tuberculous Meningitis

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2020-07-04
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Journal of Tropical Pediatrics
Introduction: Tuberculous meningitis (TBM) results in significant morbidity and mortality among children worldwide. Associated neurocognitive complications are common but not well characterized. The Mullen Scales of Early Learning (MSEL), a well-established measure for assessment of...

Transcriptomic profiles of confirmed pediatric tuberculosis patients and household contacts identifies active tuberculosis, infection, and treatment response among Indian children

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2019-12-04
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Journal of Infectious Diseases
Journal of Infectious Diseases: Gene expression profiles among Indian children with confirmed TB were distinct from those of adults, highlighting the importance of including distinct populations in differential gene expression models

MAL adaptor (TIRAP) S180L polymorphism and severity of disease among tuberculosis patients

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2019-10-31
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Infection, Genetics, and Evolution
Infection, Genetics, and Evolution : We investigated the association of TIRAP variants with severity of TB disease and IP-10 production in humans, which may be useful in predicting poor clinical outcome

Challenges in conducting trials for pediatric tuberculosis meningitis: lessons learned in the field

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2019-10-01
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International Journal of Tuberculosis and Lung Disease
International Journal of Tuberculosis and Lung Disease: Researchers describe the challenges associated with conducting the first randomized clinical trial of antimicrobial agents in pediatric tuberculosis meningitis.

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India Revises National TB Prevention Guidelines Using Findings from Indo-JHU Research 

Post Date: 
2021-08-31
Source: 
CCGHE
TB graphic
“If we can screen patients early and get their household contacts on preventive therapy, we have an opportunity to stop the chain of this horrible disease.”

Study Shows Extent, Danger of TB Exposure: Part I

Post Date: 
2020-08-24
Source: 
Medical Daily
Medical Daily: Amita Gupta and Mandar Paradkar are quoted in this report about TB preventive therapy for household contacts of confirmed cases in India

Research Story Tip: International Johns Hopkins Study Says Broad Measures Needed to Prevent TB Spread in India

Post Date: 
2020-08-06
Dr. Mandar Paradkar
Johns Hopkins News Release: News release highlights study findings published in PLOS One by Dr. Mandar Paradkar and colleagues.

Broad measures needed to check spread of TB in India: Study

Post Date: 
2020-08-05
Source: 
daijiworld.com
daijiworld.com (India): Dr. Mandar Paradkar is quoted about his recent study on TB preventive therapy for household contact of TB cases.

Broad measures needed to check spread of TB in India, say researchers

Post Date: 
2020-08-05
Source: 
The Tribune (India)
Drs. Mandar Paradkar and Robert Bollinger are quoted in this article that highlights their recent paper about administration of TB preventive therapy for household contacts of confirmed TB cases in India.

World Tuberculosis (TB) Day Recognized with Community Event at BJGMC

Post Date: 
2018-04-17
This year's themes: Maintaining healthy nutrition, addressing mental health challenges, and the latest in TB research.

Women's Empowerment at BJGMC World TB Day 2017

Post Date: 
2017-04-03
Posted 2017-04-03

World AIDS Day 2016 at BJGMC

Post Date: 
2016-12-06
Read more about 2016 World AIDS Day activities at the BJGMC Clinical Site in Pune, India.

Advancing Global TB Research through RePORT

Post Date: 
2016-02-29
Regional Prospective Observational Research for Tuberculosis (RePORT) International is a large, international tuberculosis research effort being undertaken by 4 regional consortia: RePORT Brazil, RePORT South Africa, RePORT Indonesia, and RePORT India. While each region collects and maintains...