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Uzma Khan [On behalf of the endTB consortium] 15 Nov 2018 endTB Updates from the observational study

endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

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Page 1: endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

Uzma Khan[On behalf of the endTB consortium]

15 Nov 2018

endTBUpdates from the observational study

Page 2: endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

Largest multi-centric observational study

on regimens containing

bedaquiline and/or delamanid

endTBObservational

Study

17Countries

> 2600Patients

Haiti

Peru

Belarus KazakhstanKyrgyzstan

Pakistan

Armenia

GeorgiaMyanmar

Bangladesh

Vietnam

Indonesia

DPRK

Ethiopia

Kenya

LesothoS. Africa

Page 3: endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

Methods

Data captureCohort analysis of research-consented patients§ Receiving MDR-TB treatment regimen including bedaquiline

and/or delamanid per WHO recommendations§ Standardized data collection at project sites§ Electronic medical record (OpenMRS, Bahmni),

pharmacovigilance database§ Standardized endpoints

Page 4: endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

Cohort Description

2241 patients starting Bdq or Dlm

April 1, 2015 to May 31, 2018

Armenia 4% Bangladesh

11%

Belarus 4%

Ethiopia 3%

Georgia 12%

Haiti0.5%

Indonesia 2%

Kazakhstan 23%

Kenya0.2%

DPRK 5%

Kyrgyzstan 1%

Lesotho 9%

Myanmar 2%

Pakistan 12%

Peru 9%

South Africa 1%

Vietnam 0.6%

Page 5: endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

Use of Bedaquiline Predated Use of DelamanidEnrolled until May 31 2018

020040060080010001200140016001800

0

50

100

150

200

250

Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2

2015 2016 2017 2018

Cum

ula

tive

Enro

llme

nts

BDQ DLM Cumu_BDQ Cumu_DLM

Page 6: endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

Patient CharacteristicsApril 1, 2015 – 31 May 2018

Characteristic Total N (%)N=2241

Median age [range] 37 [9 – 88]

Female 794 (35)

Body mass index <18.5 (n=2207) 928 (42)

Resistance (n=2137)RR/MDR-TB

Pre-XDR (FQ)Pre-XDR (Inj)

XDR

697 (31)

519 (23)270 (12)

651 (29)

ComorbiditiesHIV (N=2217)

Hepatitis C (N=2194)Diabetes (N=2107)

297 (13)

236 (11)266 (13)

Previously treated w/ SLDs (N=2240) 1638 (73)

Page 7: endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

Proportion of Patients with HIV, hep C and DM

12% 12%

33%

6%1%

80%

1% 4%

23% 25%

4%

23%

14%

1%

10%10%6%

13% 11% 10%7%

14%9%

27%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Armenia Belarus Ethiopia Georgia Kazakhstan Lesotho Pakistan Peru Bangladesh

HIV hep C DM

Page 8: endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

0

10

20

30

40

50

60

70

80

90

100

Q2 2015

Q3 2015

Q4 2015

Q1 2016

Q2 2016

Q3 2016

Q4 2016

Q1 2017

Q2 2017

Q3 2017

Perc

enta

ge (%

)

Resistance indications Unable to tolerate MDR drugs

Patients Enrolled Early were Chronic & Sicker

Page 9: endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

IndonesiaendTB Patients

2015

Started treatment at another private clinic.

Doctor suggests patient should seek treatment in

Malaysia

2016

Patient started treatment again at a

private hospital, after a few months patient was asked to go to RS Islam

Cempaka Putih

2014

DS-TB Rx at a private clinic, outcome unknown

Patient traveled to Malaysia and

stayed there for 2 months without improvement

Returned to Jakarta.Got hospitalized at a private hospital. After

discharge, did not return to the hospital

2017

– now –Received MDR TB treatment at RS Islam Cempaka

Putih (enrolled on endTB in October

2017)

Page 10: endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

1. What is the evidence for or against the use of delamanid in multidrug regimens for RR/MDR-TB?

3. What is the range of adverse event (AE) profiles observed in multidrug regimens that include bedaquiline and/or delamanid?

2. What is the evidence for or against the use of injectable-sparing regimens for RR/MDR-TB when BDQ &/or DLM are available?

endTB Interim Analysis

Page 11: endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

Interim AnalysisDelamanid Efficacy & Toxicity

§ ≥ Grade 3 QTc interval prolongation infrequent

§ Culture conversion occurs in ~ 80%,including among XDR and patients with comorbiditieso Conversion in HIV coinfected lower

• Balance of efficacy and safety supports delamanid use

Overall

Page 12: endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

§ Important! toxicity common among patients receiving SL injectableo 20% of patients had hearing losso 36% had injectable-related AE (hearing loss,

acute renal failure, electrolyte imbalance)§ Balance of evidence does not support universal

use of SL injectable (also supported by the IPD analysis – WHO recommendations)o Consider treatment options, patient

preferenceo effective monitoring

Interim AnalysisInjectable Efficacy & Toxicity

Overall

Page 13: endTB O1 update Geneva FINAL (2). endTB... · § Electronic medical record (OpenMRS, Bahmni), pharmacovigilance database § Standardized endpoints. Cohort Description 2241 patients

BDQ- and DLM-containing multidrug-regimens achieve excellent interim treatment response without safety concerns

endTB Interim Analysishttp://www.endtb.org/resources/endtb-interim-analysis-july2018