TB Drug Co-Development Roundtable: TMC207 (bedaquiline)

Chrispin Kambili, M.D.

CPTR meeting Oct 04, 2012

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Why MDR?

• Current SOC in DS TB:– 95% effective– Inexpensive (USD 36/regimen)

• TMC 207 interaction w/rifampicin

• MDR-TB: greater medical need– Current SOC only ~60% effective– Requires 5-6 second line drugs to create a regimen which is more

expensive, less effective, and associated with more side effects.– Long treatment duration (typically 18-24 months)– Huge fiscal burden to public health systems

MDR TB is a time bomb.*

* Margaret Chan, WHO Director General, Beijing, 2009

Bedaquiline Development Plan

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

Non-Clinical

11 trials

C20275 pts

C208 Stage 1 MDR-TB pts

C209, 233 MDR, pre-XDR, XDR-TB pts

Phase II

Phase I

Phase III

C210, ~600 MDR , pre-XDR-TB pts

Non Clinical

C208 Stage 2, MDR-TB pts

Intro: Clinical Development Status PhIIb

• Key Phase I PK findings• Linear PK• Positive food effect (2-fold increase in exposure)• Administration of rifampin lowers TMC207 levels 50% (CYP3A4)• Administration of LPV/r modestly increased TMC207 exposure (22%).• Administration of NVP does not affect TMC207 exposure • Long terminal elimination half-life (steady state levels not achieved by

day 14)

• Key Phase II findings• TMC207-C202: Proof of Principle demonstrated in a one-week EBA trial• TMC207-C208 Stage I: TMC207 added to a 5-drug BR increased culture

conversion by ~40% at 8 weeks in MDRTB– TMC207-C208 Stage II: in a placebo controlled trial, TMC207 added to

a 5-drug BR resulted in faster culture conversion (12 wks vs 18 wks; p = 0.003) and higher proportion of sputum culture conversions (79% vs 58%; p=0.008) at 24 weeks .

McNeeley D, et al. IUATLD 2006. oralVan Heeswijk et al., ICAAC 2007, A-780

Van Heeswijk, et al., IUATLD 2007, PS-71358-11 Van Heeswijk et al, IAS 2010, WEPE0097 Van Heeswijk et al, IAS 2011, MOPE172

Rustomjee et al., AAC 2008, 52, 2832Diacon et al., NEJM 2009, 360, 2397

McNeeley et al, IUATLD, 2010 Session N.00189

More Effective

Treatment

Improved Safety /

Tolerability

Shortening Treatment Duration

Simplified Regimens

5

Objectives for Development of New MDR-TB Therapy

Dec 2012: TMC207-C210: Phase III superiority design: A new short course regimen in MDR-TB

6BR = K(4m)PrHLECZ (6m) + LECZ (3m)

• Change an antiquated,

cumbersome, treatment paradigm

• Contribute to the realization of global ambitions to eradicate TB by 2050

• Forge a sustainable model(s) to develop medicines that address neglected diseases

• Save the lives of nearly 150,000 people who die each year from MDR-TB around the world

We hope to…

Photo courtesy of James Nachtwey

• June 29, 2012: Janssen submitted a New Drug Application (NDA) to the U.S. Food and Drug Administration (FDA) seeking accelerated approval for bedaquiline (TMC207), as part of combination therapy for pulmonary multi-drug resistant tuberculosis (MDR-TB). – This is the first NDA to seek an indication for MDR-TB. – Priority review has been granted

• August 31, 2012: Janssen announced submission of a Marketing Authorisation Application to the European Medicines Agency (EMA) seeking conditional approval for bedaquiline (TMC207), to be used as part of combination therapy for pulmonary, multi-drug resistant tuberculosis (MDR-TB) in adults.

Current status

FDA Advisory Committee:

FDA Advisory committee meeting to discuss TMC207 (bedaquiline) scheduled for Nov 28, 2012

Thank you!

Questions?