Dr Raj Badhan

Lecturer in Pharmacokinetics Aston University

  • Birmingham

Dr Badhan's interest is in applying clinical pharmacokinetics to challenging pre-clinical scenarios and clinical patient groups scenarios.

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Aston University partnership with medicine manufacturer improves oral medicine formulation development process

Aston University and medicine manufacturer Catalent formed a Knowledge Transfer Partnership to identify more effective formulation additives The new selection matrix makes choosing the right additive quicker and the medicine development process shorter The project has been rated as ‘outstanding’ by Innovate UK A partnership between Aston University and contract medicine manufacturer Catalent has led to a faster process to identify the best ingredients for optimal medicine formulations, and has been rated as outstanding by Innovate UK. Catalent is a global leader in enabling pharma, biotechnology and consumer health partners to optimise product development, launch and full life-cycle supply for patients around the world. Its proprietary Zydis orally dissolving tablet (ODT) technology enables the absorption of drugs or active pharmaceutical ingredients (APIs) through the mouth tissues, which is much faster than absorption through the gut. However, many APIs have poor pre-gastric absorption and need to be combined with suitable excipients, or additives, to bind the active ingredients and speed up the process of dissolving and absorbing via the pre-gastric route. Identifying suitable excipients for the formulation is difficult, and so the Knowledge Transfer Partnership (KTP) between Aston University and Catalent was set up to develop a faster, more efficient approach. A KTP is a three-way collaboration between a business, an academic partner and a highly qualified researcher, known as a KTP associate. The UK-wide programme helps businesses to improve their competitiveness and productivity through the better use of knowledge, technology and skills. Aston University is a sector leading KTP provider, with 80% of its completed projects being graded as very good or outstanding by Innovate UK, the national body. The project was led by Aston University’s Afzal Mohammed, professor of pharmaceutics in the School of Pharmacy and associate dean (impact and knowledge exchange) for the College of Health and Life Sciences, who has expertise in the design and optimisation of orally dissolving tablet formulation. He was supported by other colleagues from Aston Pharmacy School including Dr Daniel Kirby, whose main area of research is the formulation of age-appropriate medicines for the extremes of life, Dr Affiong Iyire, who has research expertise in mucosal drug delivery, and Dr Raj Badhan, who is a pharmacokinetics expert with research interests in analytical approaches to predict oral drug absorption. Dr Ruba Bnyan, who has a master’s degree and a PhD in pharmaceutical drug formulation, as well as experience in cell-based models, was the KTP associate for the project. The KTP partners developed a selection matrix, whereby, based on the API properties, Catalent formulation scientists can quickly identify excipients that will improve the absorption of the drug through the mouth. Adopting this novel tool allows for quicker and more efficient drug development and has the potential to increase the number of Zydis ODT candidates in the pipeline for future development. Desmond Wong, product development supervisor at Catalent, said: “This project has exceeded our initial expectations and has the potential to accelerate product development for our clients. Our strong relationship with the Aston University team on this KTP project highlights the transformative potential of collaborative research and its impact on pharmaceutical innovation.” Professor Mohammed said: “This has been a very successful project, which has been rated as ‘outstanding’ by Innovate UK. We plan to put it forward for a KTP award and are looking forward to continuing working with Catalent on our next KTP project.” For more information on the KTP visit the webpage.

Dr Raj BadhanDr Afzal-Ur-Rahman Mohammed

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Biography

Dr Raj Badhan joined Aston University in June 2010 as Lecturer in Pharmacokinetics following over 3 years of extensive pharmacokinetics training with the world-renowned Centre for Applied Pharmacokinetics Research as a post-doctorate research associate, within the School of Pharmacy at the University of Manchester.

Raj has a broad background and interest in applying the principles of clinical pharmacokinetics to challenging pre-clinical and clinical scenarios in the context of medicines optimisation. As a pharmacokineticist and practicing pharmacist, he has a singular vision of developing tools and approaches which provide clear end-user/clinical benefits. This approach has driven successes in developing research tools to predict oral drug absorption and central nervous system drug biodistribution in addition to medicines optimisation for a range of disease conditions (e.g. mental health, tropical diseases, cardiovascular disease, drug abuse) and patient groups (paediatrics, geriatrics and pregnancy).

Areas of Expertise

Pharmacokinetics
Population Pharmacokinetics
Modelling
Mental Health
Paediatrics
Pregnancy
Medicines Optimisation
Opioid Abuse

Education

University of Manchester

PhD

Pharmacology, Molecular Biology and Pharmacokinetics

2005

University of Manchester

MPharm

Pharmacy

2001

Affiliations

  • Royal Pharmaceutical Society of Great Britain
  • International Society for the Study of Xenobiotics
  • Academy of Pharmaceutical Sciences Great Britain (APSGB)
  • United Kindgom and Ireland Controlled Release Society (UKICRS)

Media Appearances

Improving the use of methadone for drug users with tuberculosis to prevent withdrawal

Medical Xpress  online

2019-05-21

Dr. Raj K. Singh Badhan, Lecturer in Pharmacokinetics, Aston University said: "We found that rifampicin significantly alters the level of methadone in the blood and necessitates dose adjustments, with daily doses of almost double those commonly used in clinical practice required for optimal levels of methadone in the blood.

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Articles

The Application of Virtual Therapeutic Drug Monitoring to Assess the Pharmacokinetics of Imatinib in a Chinese Cancer Population Group

Journal of Pharmaceutical Sciences

2022

This study utilised a previously validated a Chinese cancer population and assessed the impact of imatinib virtual-TDM in Chinese and Caucasian cancer populations across a dosing range from 200-800 mg daily.

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Precision dosing of methadone during pregnancy: A pharmacokinetics virtual clinical trials study

Journal of Substance Abuse Treatment

2021

This study applied a pharmacokinetic modeling approach to examine gestational changes in R- and S-methadone concentrations in maternal plasma and fetal (cord) blood. This study did so to derive a theoretical optimal dosing regimen during pregnancy, and to identify the impact of Cytochromes P450 (CYP) 2B6 and 2C19 polymorphisms on methadone maternal and fetal pharmacokinetics.

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The Pharmacokinetics of Gefitinib in a Chinese Cancer Population Group: A Virtual Clinical Trials Population Study

Journal of Pharmaceutical Sciences

2021

Gefitinib, a selective inhibitor of the epidermal growth factor receptor (EGFR) tyrosine kinase, is used to treat non-small-cell lung cancer (NSCLC). Lung cancer rates are high in China and are expected to increase over the next decade. CYP 2D6 intermediate metaboliser (IM) phenotypes are more prevalent in the Chinese population compared to Caucasians; the increased risk of drug-drug interactions (DDI) with chemotherapy polypharmacy may lead to different clinical pharmacokinetics outcomes for Chinese patients.

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