Founder & Managing Director · Shafi Consultancy Ltd.

Shafi
Chowdhury

Bridging clinical rigour with advanced computational analytics.

Approximately 33 years in the pharmaceutical industry. Since founding Shafi Consultancy in 2001, Shafi has led a specialist clinical programming company serving pharmaceutical sponsors and CROs, from CDISC-standard data and TLF reporting to analysis-ready PK/PD datasets for NONMEM.

33+years in the pharmaceutical industry
2001founded Shafi Consultancy Ltd.
CDISCSDTM and ADaM standards-driven delivery

Clinical trials Statistics & clean data Advanced modelling

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Clinical trials Modelling

The work, as structure

Two interactive models of the data Shafi's teams work with. Drag to rotate. Select a node or a point on the surface to read its values.

Clinical trial connectivity

SDTM collected data and ADaM analysis data as two linked strands. Each rung is a traceability link between them.

Drag · Select

SDTM · collected data

Node 2 of 52

AEAdverse Events

Traces to ADAE through STUDYID and USUBJID.

PopPK clearance surface

Simulated one-compartment oral model: plasma concentration across time and clearance, at three volume-of-distribution percentiles.

Hover · Drag

Median layer · V = 38 L

Dose 400 mg · KA 1.1 h⁻¹

TIME

2.3 h

CL

4.2 L/h

CONC.

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Statistics & clean data

Clinical analytics dashboard

The kind of outputs statistical programmers produce at the end of a trial. The charts use simulated data and respond to hover and the controls.

Industry experience

33+

Years in the pharmaceutical industry

Founded

2001

Shafi Consultancy Ltd. established

Leadership

25

Years leading a specialist clinical programming company

Simulated data

At risk

Statistics · Reporting

TLF reporting engine

Tables, listings and figures are the reviewed outputs of a clinical study. Switch between three typical outputs, generated here from simulated ADaM-style data.

Program: t_14_1_dm.sas Source: ADSL QC: independent double programming

Generating PDF

Demonstration only. No file is created.

Advanced modelling

NONMEM analysis hub

Non-linear mixed-effects modelling estimates how drug exposure varies between patients. Analysis-ready NONMEM datasets and clinical pharmacology programming are a specialist service delivered under Shafi's leadership.

Event records

Dosing and observation rows with AMT, EVID, MDV and CMT, built from ADaM.

Covariates

Weight, renal function and other subject-level covariates, merged and checked.

Diagnostics

Goodness-of-fit plots such as observed against predicted concentrations.

run001.ctl

        
Ready. Press Run to replay a simulated estimation.

Observed vs predicted

ParameterEstimateRSE
CL (L/h)4.184.6%
V (L)37.95.2%
KA (1/h)1.079.8%
Proportional error11.8%6.1%

Simulated run: 40 subjects, 320 observations. Estimates are illustrative.

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Shafi Chowdhury

Founder & Managing Director, Shafi Consultancy Ltd.

Shafi has spent approximately 33 years in the pharmaceutical industry, in roles spanning pharmaceutical operations, clinical research and clinical statistical programming. In 2001 he founded Shafi Consultancy Ltd., a specialist clinical programming company working with pharmaceutical companies and contract research organisations, where he continues to focus on quality, programming innovation and developing people.