https://www.farm.ucl.ac.be/Full-texts-FARM/Danhier-2010-2.pdf

To exploit the tumor microenvironment: Passive and active tumor targeting of nanocarriers for anti-cancer drug delivery

In this review we provide an up to date snapshot of nanomedicines either currently approved by the US FDA, or in the FDA clinical trials process. We define nanomedicines as therapeutic or imaging agents which comprise a nanoparticle in order to control the biodistribution, enhance the efficacy, or otherwise reduce toxicity of a drug or biologic. We identified 51 FDA-approved nanomedicines that met this definition and 77 products in clinical trials, with ~40% of trials listed in clinicaltrials.gov started in 2014 or 2015. While FDA approved materials are heavily weighted to polymeric, liposomal, and nanocrystal formulations, there is a trend towards the development of more complex materials comprising micelles, protein-based NPs, and also the emergence of a variety of inorganic and metallic particles in clinical trials. We then provide an overview of the different material categories represented in our search, highlighting nanomedicines that have either been recently approved, or are already in clinical trials. We conclude with some comments on future perspectives for nanomedicines, which we expect to include more actively-targeted materials, multi-functional materials (“theranostics”) and more complicated materials that blur the boundaries of traditional material categories. A key challenge for researchers, industry, and regulators is how to classify new materials and what additional testing (e.g. safety and toxicity) is required before products become available.

Nanoparticle-Based Medicines: A Review of FDA-Approved Materials and Clinical Trials to Date.

Albumin as a drug carrier: design of prodrugs, drug conjugates and nanoparticles.

Nanomedicine in cancer therapy: challenges, opportunities, and clinical applications.

Nanomedicine, the application of nanotechnology to medicine, enabled the development of nanoparticle therapeutic carriers. These drug carriers are passively targeted to tumors through the enhanced permeability and retention effect, so they are ideally suited for the delivery of chemotherapeutics in cancer treatment. Indeed, advances in nanomedicine have rapidly translated into clinical practice. To date, there are five clinically approved nanoparticle chemotherapeutics for cancer and many more under clinical investigation. In this review, we discuss the various nanoparticle drug delivery platforms and the important concepts involved in nanoparticle drug delivery. We also review the clinical data on the approved nanoparticle therapeutics as well as the nanotherapeutics under clinical investigation.

Nanoparticle Delivery of Cancer Drugs

ABI-007, an albumin-bound, 130-nm particle form of paclitaxel, was developed to avoid Cremophor/ethanol-associated toxicities in Cremophor-based paclitaxel (Taxol) and to exploit albumin receptor-mediated endothelial transport. We studied the antitumor activity, intratumoral paclitaxel accumulation, and endothelial transport for ABI-007 and Cremophor-based paclitaxel. Antitumor activity and mortality were assessed in nude mice bearing human tumor xenografts [lung (H522), breast (MX-1), ovarian (SK-OV-3), prostate (PC-3), and colon (HT29)] treated with ABI-007 or Cremophor-based paclitaxel. Intratumoral paclitaxel concentrations (MX-1-tumored mice) were compared for radiolabeled ABI-007 and Cremophor-based paclitaxel. In vitro endothelial transcytosis and Cremophor inhibition of paclitaxel binding to cells and albumin was compared for ABI-007 and Cremophor-based paclitaxel. Both ABI-007 and Cremophor-based paclitaxel caused tumor regression and prolonged survival; the order of sensitivity was lung > breast congruent with ovary > prostate > colon. The LD(50) and maximum tolerated dose for ABI-007 and Cremophor-based paclitaxel were 47 and 30 mg/kg/d and 30 and 13.4 mg/kg/d, respectively. At equitoxic dose, the ABI-007-treated groups showed more complete regressions, longer time to recurrence, longer doubling time, and prolonged survival. At equal dose, tumor paclitaxel area under the curve was 33% higher for ABI-007 versus Cremophor-based paclitaxel, indicating more effective intratumoral accumulation of ABI-007. Endothelial binding and transcytosis of paclitaxel were markedly higher for ABI-007 versus Cremophor-based paclitaxel, and this difference was abrogated by a known inhibitor of endothelial gp60 receptor/caveolar transport. In addition, Cremophor was found to inhibit binding of paclitaxel to endothelial cells and albumin. Enhanced endothelial cell binding and transcytosis for ABI-007 and inhibition by Cremophor in Cremophor-based paclitaxel may account in part for the greater efficacy and intratumor delivery of ABI-007.

https://clincancerres.aacrjournals.org/content/clincanres/12/4/1317.full.pdf

Increased antitumor activity, intratumor paclitaxel concentrations, and endothelial cell transport of cremophor-free, albumin-bound paclitaxel, ABI-007, compared with cremophor-based paclitaxel.

The present invention provides stable pharmaceutical compositions of poorly water soluble pharmaceutical agents and stabilizing agents which function to increase stability of the compositions. The use of stabilizing agents provide extended stability of nanoparticle suspensions and other formulations of poorly water soluble pharmaceutical agents such as docetaxel under certain conditions, for example upon dilution for administration.

Compositions and methods for preparation of poorly water soluble drugs with increased stability

The present invention provides compositions comprising nanoparticles comprising: 1) a drug, such as a hydrophobic drug derivative; and 2) a carrier protein. Also provided are methods of treating diseases (such as cancer) using the compositions, as well as kits and unit dosages.

Nanoparticle formulations and uses thereof

The present invention provides combination therapy methods of treating proliferative diseases (such as cancer) comprising a first therapy comprising administering to an individual an effective amount of a taxane in a nanoparticle composition, and a second therapy which may include, for example, radiation, surgery, administration of chemotherapeutic agents, or combinations thereof. Also provided are methods of administering to an individual a drug taxane in a nanoparticle composition based on a metronomic dosing regime.

Methods and compositions for treating proliferative diseases

The present invention provides compositions comprising nanoparticles comprising: 1) a hydrophobic taxane derivative; and 2) a carrier protein. Also provided are methods of treating diseases (such as cancer) using the compositions, as well as kits and unit dosages.

Compositions of hydrophobic taxane derivatives and uses thereof

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