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This document provides an outline of a presentation and is incomplete without the accompanying oral commentary and discussion. Conclusions and/ or potential strategies contained herein are NOT necessarily endorsed by Pfizer
management. Any implied strategy herein would be subject to management, regulatory and legal review and approval before implementation.
On the horizon: The integrated PAT control strategy for
PCMM (portable, continuous, miniature, modular)
- an agile development and manufacturing platform
Yang Angela Liu, Ph.D.
Pfizer Worldwide Research & Development
Groton CT, USA
Outline
• Introduce PCMM OSD
– Agile, small foot print, fast change over, knowledge accural
• The design sweet spot – integrated control strategy starting from the
design
– Engineering design
– Engineering model
– PAT
• Integrated attribute based monitoring system
• Maximize value in the early development life cycle to cover critical control
strategy components
– APC
• Stage appropriate approach in an accelerated development timeline
• Conclusion
│ 1
PCMM OSD: A Factory in a POD Continuous Processing Platform Technology for Solid
Oral Dosage Forms (HSWG and CDC)
Skids Pre-fabricated in Belgium
… and re-assembled into a grey space warehouse in Groton, CT
Integrated into a ‘Portable’ cGMP POD
6 Modules Pre-fabricated in College Station
Texas
Building 90
Mock-up
FAT in Belgium
Shipped to Groton
FAT in Texas
Shipped to Groton Equip.
Skids 1. Phillip R. Nixon, Changing the Pharmaceutical Industry
Paradigm: Portable, Continuous, Miniature & Modular
Development and Manufacturing, 2015 ISPE/FDA/PQRI
Quality Manufacturing Conference, June 1, 2015
PCMM OSD POD Layout
Raw
Materials
cGMP
Space
Airlo
ck &
Cle
an
ing
Tech
Space
Co
rrido
r/En
tran
ce
PO
D
│ 3
Future State PCM&M Platform Technology
Current State
Tech Transfer &
Process Scale Up
Tech Transfer &
Process Scale Up
x
x 100 to
1000 kg
<10 kg
<100 kg
Commercial Supplies
Phase III Clinical Supplies
Phase IIB Clinical Supplies
Drug Product
Quantities (dry granulation / roller compaction)
│ 4
Future State (dry blend / direct compaction)
several hours
Flexible
time
time
<1 hour
time
Future State PCM&M Platform Technology
100 to
1000 kg
<10 kg
<100 kg
Drug Product
Quantities Future State
(dry blend / direct compaction)
several hours
Flexible
time
time
<1 hour
time
│ 5
Engineering
Models
Process Analytical
Technology
Advanced Process
Control
Experiments
Reduced Time, $, Resources
Commercial
Supplies
Phase III Clinical
Supplies
Phase IIB Clinical
Supplies
Platform Technology
2. Daniel Blackwood, Portable, Continuous, Miniature and Modular (PCM&M)
Approach to Redefining the Development and Manufacturing Paradigm,
AAPS - Arden House Conference, Baltimore, MD, March 17, 2015
Ac
Continuous Knowledge Accrual Paradigm with PCMM F
utu
re
Product B
Within R&D Tech Transfer R&D to Commercial Tech Transfer
Knowledge from
Product A directly
informs Product B
Knowledge
Accrual
Knowledge
Accrual Knowledge
Accrual
Within Commercial Tech Transfer Within R&D Tech Transfer R&D to Commercial Tech Transfer
Within Commercial Tech Transfer
Product A
Process Knowledge Build
Process Knowledge Build
3 . Phillip Nixon, Broad Implementation of Continuous Manufacturing for Solid Oral Drug Products: What
Can the Future Look Like? AAPS - Arden House Conference, Baltimore, MD, 2015 March 17, 2015
Advanced
Process
Control
Engineering
Models
Process
Analytical
Technology
Equipment
Design
Integrated System
An Integrated Approach to a Platform Technology
│ 7
World-class
Materials
Science
& Formulation
Development
Practices
World-class
Commercial
Manufacturing
Particle
Engineering
for API and
Excipients
~500 MM tab/year
24/5 operation,
30% downtime
PCMM OSD Prototype Processing Equipment
Granule
Conditioning
Unit
Total
Elevation
~14.5 ft HSWG Wet
Granulation
Dryer
Continuous Mixing
& Direct Compression ConsiGmaTM WG
CMT
Mixer
Tablet
Press
Feeders
CMT
Mixer Feeders
Raw
Material
Dispensing
Continuous Mixing Technology Goals
• Powder mixing as close to dosage form creation
as possible
• Independent control of
– Powder Hold Up Mass,
– Mass Throughput, and
– Impeller RPM
• Residence Time Distribution
– Based on simple CSTR model
– Consistent RTDs over a wide range of
process conditions
• Integrated powder de-lumping capabilities
• Integrated PAT sensors
• Minimal/Zero Waste Start Up & Shutdown
Continuous Mixing Technology (CMT) Engineering Design
│ 9
Gravimetric
Feeders
In-Line
Mixer
Tablet
Press
2. Daniel Blackwood, Portable, Continuous, Miniature and Modular
(PCM&M) Approach to Redefining the Development and
Manufacturing Paradigm, AAPS - Arden House Conference,
Baltimore, MD, March 17, 2015
What Is PAT Expected To Achieve
• Fast development of “processing”
• Optimization of product processing
• Condition monitoring / fault diagnostics
– Know if something deviates from normal
• Check correctness of each unit operation
• Support for the use of Advanced Process Control
• “Fast Release” of product
• Mission statement - Maximize the value and knowledge
starting from the early design and development stage
10
4. Steve Hammond, Sonja Sekulic, Fast Release and Continuous Processing: A Vision of the Future, Going
Continuous - Advanced PAT and Real Time Release, Graz, Austria, September 16th, 2015
PCMM OSD PAT and Product Diversion
Continuous Mixing
& Direct Compression ConsiGmaTM WG
PAT 1 (NIR) Post CMT
Potency & Blend
Uniformity
PAT 2 (NIR) Post TSWG
Granule Formation PAT 3 (NIR)
Post Granule Sizing
Potency & Granule
Uniformity, Moisture PAT 4 (FBRM) Post Granule Sizing
PSD
PAT 5 (NIR) Feed Frame
Potency & Blend/Granule
Uniformity
Diversion 1
Post Fluid Bed
Drying
Diversion 2
Post Granule
Sizing
Diversion 3
Tablet Eject Chute
Combi Tester Weight Hardness
Thickness
The Integrated PAT Platform
• Analyzers: reliable, fast sensing, consistent, standardized.
• Sample interfaces :
– Representative sampling
– No probe fouling
– Minimal process intrusion
• Communication platform – PAT Real Time Manager system
– Supported by automation and IT infrastructure
– PAT devices, data and model are centrally control and managed
– Data exchange with process SCADA: acquisition triggering, alarming, diversion
– PAT data and process data are synchronized: trending and modeling
• Chemometrics /modeling
– Large, real time, multivariate data
– Robust and minimal calibration approaches
– Connection with APC
│ 12
Foundation of robust
real time monitoring
Intelligence Center
0 50 100 150 200 250 300-0.5
0
0.5
1
1.5
2
2.5
3
3.5x 10
-3
AP
I pote
ncy t
rend
Samples (elapsed time)
CMT trial DoE Run
Run #15
Mass throughput: 7.5kg/hr
Hold up mass: 460g
Upper impeller: 1000
Lower impeller: 1000
PAT1 – Mixing Dynamic Characterization
• PAT1 tracks the blend potency out of CMT.
• Important to characterize the CMT mixing dynamic and residence
time distribution
5.5% Tracer
Spike
Segmented dryer 100 200 300 400 500 600 700 800 900 1000
-4
-3
-2
-1
0
1
2
3x 10
-3
Sample
Sco
res
on P
C 1
(68
.04%
)
Samples/Scores Plot of pX
Liquid addition ramp: 15% to 18%
PAT2 – NIR at Twin Screw Wet Granulator Outlet
PAT2 - Granule Condition Monitoring
• Granules from different conditions showed in clusters based on their
overall spectral feature.
1300 1400 1500 1600 1700 1800 1900 2000-0.15
-0.1
-0.05
0
0.05
0.1
0.15
0.2
0.25
Variable
PC
1 (
59.9
9%
), P
C 2
(19.1
4%
)
Variables/Loadings Plot for pX
-10 -8 -6 -4 -2 0 2 4
x 10-3
-6
-5
-4
-3
-2
-1
0
1
2
3
4x 10
-3
Scores on PC 1 (59.91%)
Score
s o
n P
C 2
(18.0
7%
)
Samples/Scores Plot of pX
Low moisture,
high potency
PAT5 - Feed Frame Monitoring
• Innovated sample interface design to
achieve robust spectral signal.
│ 16
• Location advantage:
– Characterize the blend right before tablet
compression: potency and the extent of
lubrication.
– Real time characterize process dynamic.
– Enable diversion, feed back/forward
control.
– Platform technology: no impact from tablet
size, commercial image
NIR probe
Micrometer
Modified paddle wheel
6% (120% potency)
4% (80% potency) *assume 5% as target
potency (100%)
Sensitivity for low dosage product demonstrated
PAT and Process Variables For Process Dynamic
Understanding
API% setpoint
change
Potency in feed
frame change
onset
CSTR
Impeller set
point change
Hold up mass
sudden drop
Potency decrease
observed by PAT 5
Product Tracking and Condition Monitoring
│ 18
Feeders
-60 -40 -20 0 20 40 60 800
5
10
15
20
25
Time/Min
AP
I% Feeders Set Point
Step Change
PAT 1 (NIR) Post CMT
Time 0:00
Feeders Set Point
Step Change
-60 -40 -20 0 20 40 60 800
5
10
15
20
25
Time/Min
AP
I% PAT1, Post CMT
~75sec
Time 1:15
Blends Post CMT
PAT 3 (NIR)
Post Granule Sizing
-80 -60 -40 -20 0 20 40 60 800
5
10
15
20
25
Time/Min
AP
I%
11min
PAT3, GCU
Time 11:00
Milled Granules in
GCU
PAT 5 (NIR) Feed Frame
-80 -60 -40 -20 0 20 40 60 800
5
10
15
20
25
Time/Min
AP
I%
22min
PAT5, Feed Frame
Time 22:00
In feed frame
immediate before
tableting
-80 -60 -40 -20 0 20 40 60 800
5
10
15
20
25
Time/Min
AP
I%
Set Point
PAT1 Post CMT
PAT3 GCU
PAT5 FeedFrame
22min 11min
75sec Case study:
Results are for the
specific operating
conditions of the
trial
Value of PAT For Control Strategy and Quality
Assurance
• Fast, real time monitoring
• Map out critical control strategy components at early design
stage by leveraging effective experiment design
– Characterize process dynamic
– Product tracking
– Condition monitoring/fault detection: Besides potency, potentially
on other components and physical properties
│ 19
Advanced Process Control
• PCMM is equipped with APC platform capability
• POC demonstrated on prototype equipment
– Model predictive control on critical process parameters
– Feed back control with PAT and soft sensor
• Ongoing effort on:
– MSPC and fault detection
– Hybrid soft sensors
– End-to-end APC system
│ 20
Stage Appropriate Control Strategy: A Development
Continuum
The platform is equipped with monitoring, modeling and control capability to
ensure product quality – higher level control with combination of different
components.
To realize the vision of an adaptable and agile manufacturing paradigm, there
is a need to balance the online and offline analytics to the stage of
development..
Low
Medium
High
Process Control: Comprehensive
Closed loop control
strategy
Release: Online (RTRt)
Process Control: MSPC/SQC
(parameters &
attributes), MPC on
CPP
Release: Combination of
Online and Offline Process
Monitoring/Control: SPC/MSPC/SQC,
(parameters & attributes)
Release: Offline
Imp
ac
t
Stage 1
Clinical Stage 2
Co-Development
Stage 3
Commercial
Development Stage
Variable Input
& Limited Understanding
Managing Variable Inputs: Part of the Journey to Six Sigma
Current State
Variable Input & Advanced
Understanding
Preferred State
Variable Output
(Optimized) Constant Process
Variable Process (APC)
Constant Output (Robust Process)
Feed Forward Feed Back
Stage-appropriate!
Conclusion
• The PCMM control strategy roots from its integrated
design concept.
• The sweet spot of engineering design, engineering
models, PAT and APC ensures quality and maximizes the
continuous process benefit.
• The state appropriate control strategy enables agile
product development and manufacturing.
│ 23
References
1. Phillip R. Nixon, Changing the Pharmaceutical Industry Paradigm: Portable, Continuous, Miniature & Modular
Development and Manufacturing, 2015 ISPE/FDA/PQRI Quality Manufacturing Conference, June 1, 2015
2. Daniel Blackwood, Portable, Continuous, Miniature and Modular (PCM&M) Approach to Redefining the Development
and Manufacturing Paradigm, AAPS - Arden House Conference, Baltimore, MD, March 17, 2015
3. Phillip Nixon, Broad Implementation of Continuous Manufacturing for Solid Oral Drug Products: What Can the Future
Look Like? AAPS - Arden House Conference, Baltimore, MD, 2015 March 17,
4. Steve Hammond, Sonja Sekulic, Fast Release and Continuous Processing: A Vision of the Future, Going Continuous
- Advanced PAT and Real Time Release, Graz, Austria, September 16th, 2015
5. Yang (Angela) Liu, PAT and multivariate condition monitoring for drug product continuous process, SciX, Providence, RI,
September 29, 2015
6. Yang (Angela) Liu, Daniel Blackwood, Jeffrey Moriarty, NIR In-Line Monitoring for Drug Product Continuous Process: From
Understanding to Control, BioPharma Asia, June 16th, 2015
7. Koji Muteki, Daniel O. Blackwood, Brent Maranzano, Yong Zhou, Yang A. Liu, Kyle R. Leeman, and George L. Reid, Mixture
component prediction using iterative optimization technology (calibration-free/minimum approach), Industrial & Engineering
Chemistry Research, 52(35), 12258–12268
8. Yang (Angela) Liu, Koji Muteki, Daniel O. Blackwood, Online Feed Frame Monitoring of Blends/Granules During Tablet
Compression, IFPAC, Baltimore, Jan 22-25,2013
9. Howard W. Ward, Daniel O. Blackwood, Mark Polizzi, Hugh Clarke , Monitoring Blend Potency in A Tablet Press Feed Frame
Using Near Infrared Spectroscopy, Journal of Pharmaceutical and Biomedical Analysis, 80 (2013), 18– 23
10. Yang Liu, Daniel O. Blackwood, Sample Presentation in Rotary Tablet Press Feed Frame Monitoring by Near Infrared
Spectroscopy, American Pharmaceutical Review, May 2012
│ 24
Acknowledgement
• PCMM OSD Prototype Team
• PCMM Implementation Team
• PCMM PAT Team
• PCMM Analytical support team
• Perceptive Engineering
• Colleagues from GEA and G-Con
│ 25
• Slides and references courtesy
• Daniel Blackwood
• Phil Nixon
• Steve Hammond
• Sonja Sekulic
A PCMM campaign as an example of large data mining
• 5 days. 1 day of DC integrated run, 1 day of WG integrated run.
• DC integrated run:
– 6 hours of run time, 19 DoE runs on process parameters.
– 1 PAT (PAT5) with ~60 process parameters simultaneously tracked in every 4 sec interval.
– ~110Mb data
• WG integrated run:
– 6 hours of run time, 18 DoE runs on process parameters.
– 5 PATs, 200+ process parameters simultaneously tracked.
– ~500Mb data
• Rich process understanding info.
• Great opportunity for utilizing data mining and modeling to gain process understanding for development and control.