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This study aimed to present findings on a paclitaxel (PTX)-loaded polymeric micellar formulation based on polycaprolactone-vitamin E TPGS (PCL-TPGS) and evaluate its in vitro anticancer activity as well as its in vivo pharmacokinetic profile in healthy mice in comparison to a marketed formulation. Micelles were prepared by a co-solvent evaporation method. The micelle's average diameter and polydispersity were determined using dynamic light scattering (DLS) technique. Drug encapsulation efficiency was assessed using an HPLC assay. The in vitro cytotoxicity was performed on human breast cancer cells (MCF-7 and MDA-MB-231) using MTT assay. The in vivo pharmacokinetic profile was characterized following a single intravenous dose of 4 mg/kg to healthy mice. The mean diameters of the prepared micelles were ≤ 100 nm. Moreover, these micelles increased the aqueous solubility of PTX from ∼0.3 μg/mL to reach nearly 1 mg/mL. While the PTX-loaded micelles showed an in vitro cytotoxicity comparable to the marketed formulation (Ebetaxel), drug-free PCL-TPGS micelles did not show any cytotoxic effects on both types of breast cancer cells (∼100% viability). Pharmacokinetics of PTX as part of PCL-TPGS showed a significant increase in its volume of distribution compared to PTX conventional formulation, Ebetaxel, which is in line with what was reported for clinical nano formulations of PTX, i.e., Abraxane, Genexol-PM, or Apealea. The findings of our studies indicate a significant potential for PCL-TPGS micelles to act as an effective system for solubilization and delivery of PTX.

Objectives: Capacity building exercises are important to increase understanding of healthcare processes by key stakeholders, and to facilitate open discussions to build consensus. This study explored the views of a multi-stakeholder group of local Saudi experts on possible value elements that could be important for health technology assessment (HTA) processes and methods regarding pharmaceutical products in Saudi Arabia (‘value drivers’). Methods: A diversified group of local experts were invited to a two-day capacity building workshop from 18 to 19 December 2019 in Riyadh, Saudi Arabia. Information regarding the participants’ demographic and educational/professional background, along with their self-assessed knowledge and experience of HTAs and the concept of value in the pharmaceutical market was collected. For each of 22 value drivers identified during a targeted literature search, participants were asked either to ‘opt out’ of its consideration for future HTA assessments, or rate it from 1 to 10 (low–high) on feasibility and acceptability. Results: Efficacy and safety were the highest rated value drivers for acceptability and feasibility. Explicit cost-effectiveness thresholds had the lowest ratings for acceptability and feasibility. Participants highlighted data availability and accuracy as a potential challenge to HTA implementation in Saudi Arabia. Conclusions: Participants valued a pharmaceutical product’s efficacy and safety alongside the consideration of disease characteristics for HTA processes. Participants also valued a binding HTA recommendation and the use of local real-world evidence, where available, to support HTA submissions.

Collecting evidence suggests that the intercellular infection of Chlamydia pneumoniae in lungs contributes to the etiology of lung cancer. Many proteins of Chlamydia pneumoniae outmanoeuvre the various system of the host. The infection may regulate various factors, which can influence the growth of lung cancer in affected persons. In this in-silico study, we predict potential targeting of Chlamydia pneumoniae proteins in mitochondrial and cytoplasmic comportments of host cell and their possible involvement in growth and development of lung cancer. Various cellular activities are controlled in mitochondria and cytoplasm, where the localization of Chlamydia pneumoniae proteins may alter the normal functioning of host cells. The rationale of this study is to find out and explain the connection between Chlamydia pneumoniae infection and lung cancer. A sum of 183 and 513 proteins were predicted to target in mitochondria and cytoplasm of host cell out of total 1112 proteins of Chlamydia pneumoniae. In particular, many targeted proteins may interfere with normal growth behaviour of host cells, thereby altering the decision of program cell death. Present article provides a potential connection of Chlamydia pneumoniae protein targeting and proposed that various targeted proteins may play crucial role in lung cancer etiology through diverse mechanisms. Keywords: Lung cancer, Chlamydia pneumoniae, Etiology, Systems biology, Protein targeting

Saudi Arabia is undergoing a massive healthcare transformation to fulfill its new, national “Vision 2030.” To align with this objective, Saudi Arabia is establishing a new, independent and evidence-based health technology assessment (HTA) entity to help it maximize health gains through efficient use of resources. This study was designed to ascertain how pharmaceutical companies perceive the creation of such a national HTA entity in Saudi Arabia; what they think about it and expect from it. To achieve the study’s aim, we held a workshop in Riyadh, Saudi Arabia, lasting four and a half hours and hosted by the Saudi Ministry of Health (MOH). We invited 16 market access directors and managers from different multinational pharmaceutical companies to discuss the establishment of a national HTA entity. The findings from the workshop were structured around three axes: vision and remit; HTA method; and implementation and practical considerations. Overall, the pharmaceutical company participants were positive about HTA’s value for the Saudi healthcare system and expressed willingness to adapt to meet its future requirements.