Abstract:
BACKGROUND:Injectable life-saving drugs should not be exposed to temperatures <4°C/39°F or >30°C/86°F. Frequently, weather conditions exceed these temperature thresholds in many countries. Insulin is to be kept at 4-8°C/~ 39-47°F until use and once opened, is supposed to be stable for up to 31 days at room temperature (exception: 42 days for insulin levemir). Extremely hot or cold external temperature can lead to insulin degradation in a very short time with loss of its glucose-lowering efficacy. METHODS:Combined chemical and engineering solutions for heat protection are employed in ViViCap-1 for disposable insulin pens. The device works based on vacuum insulation and heat consumption by phase-change material. Laboratory studies with exposure of ViViCap-1 to hot outside conditions were performed to evaluate the device performance. RESULTS:ViViCap-1 keeps insulin at an internal temperature < 29°C/84.2°F for a minimum of 12 h without external power requirement, even when constantly exposed to an outside temperature of 37.8°C/100°F. Bringing the device into an ambient temperature < 26°C/78.8°F reverses the phase-change process and 'recharges' the device for further use. CONCLUSIONS:ViViCap-1 performed within its specifications. The small and convenient device maintains the efficacy and safety of using insulin even when carried under hot weather conditions.
journal_name
Expert Opin Drug Delivjournal_title
Expert opinion on drug deliveryauthors
Pfützner A,Pesach G,Nagar Rdoi
10.1080/17425247.2017.1316261subject
Has Abstractpub_date
2017-06-01 00:00:00pages
709-714issue
6eissn
1742-5247issn
1744-7593journal_volume
14pub_type
杂志文章abstract:OBJECTIVES:Thermosensitive chitosan/glycerophosphate (C/GP) solutions exhibiting sol-gel transition around body temperature were prepared to develop a class of injectable hydrogel platforms for the imaging and loco-regional treatment of hepatocellular carcinoma (HCC). Indocyanine green (ICG) was loaded in the thermosen...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章
doi:10.1517/17425247.2015.1042452
更新日期:2015-01-01 00:00:00
abstract::Introduction: Pulmonary drug delivery is a complex field of research combining physics which drive aerosol transport and deposition and biology which underpins efficacy and toxicity of inhaled drugs. A myriad of preclinical methods, ranging from in-silico to in-vitro, ex-vivo and in-vivo, can be implemented.Areas cove...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1080/17425247.2020.1730807
更新日期:2020-04-01 00:00:00
abstract:IMPORTANCE OF THE FIELD:Drug combinations have been the standard of care in the treatment of cancer for > 50 years. Typically, combination chemotherapy uses agents with non-overlapping toxicities which are escalated to their maximum tolerated dose. However, emerging evidence indicates that this approach may not be prov...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425247.2010.538678
更新日期:2010-12-01 00:00:00
abstract::The demand for new vaccine adjuvants is well documented. New purified antigens from parasites, bacterial or viral pathogens, as well as recombinant subunit antigens and synthetic peptides, are often inherently weak immunogens; therefore, they need some kind of adjuvant to help initiate an immune response. In addition,...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425247.2.5.807
更新日期:2005-09-01 00:00:00
abstract::Cancer is the second leading cause of death in the US. Currently, protocols for cancer treatment include surgery to remove diseased and suspect tissues, focused radiation, systemic chemotherapy, immunotherapy and their combinations. With conventional chemotherapy, it is almost impossible to deliver anticancer drugs sp...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425240903085128
更新日期:2009-08-01 00:00:00
abstract:BACKGROUND:Targeted delivery of antithrombotic (thrombolytic) drugs is expected to increase their efficacy and decrease side effects, especially in the case of thrombolytic enzymes. Liposomes, phospholipid nanosized bubbles with a bilayered membrane structure, have drawn a lot of interest as pharmaceutical carriers for...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425240802497457
更新日期:2008-11-01 00:00:00
abstract:IMPORTANCE OF THE FIELD:Cancer is the most formidable human disease. Owing to the heterogeneity of cancer, a single-treatment modality is insufficient for the complete elimination of cancer cells. Therapeutic strategies from various aspects are needed for cancer therapy. These therapeutic agents should be carefully sel...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425247.2010.510511
更新日期:2010-09-01 00:00:00
abstract::The CYPHER (Cordis, Johnson & Johnson) sirolimus-eluting stent and the TAXU (Boston Scientific) paclitaxel-eluting stent have been extensively evaluated and have been proven to be significant novel tools for the treatment of coronary artery disease. Several sirolimus derivatives have already emerged, receiving CE Mark...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425247.3.6.783
更新日期:2006-11-01 00:00:00
abstract:INTRODUCTION:Bisphosphonates (BPs) were introduced 45 years ago as anti-osteoporotic drugs and during the last decade have been utilized as bone-targeting groups in systemic treatment of bone diseases. Very recently, strategies of chemical immobilization of BPs in hydrogels and nanocomposites for bone tissue engineerin...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425247.2015.1021679
更新日期:2015-01-01 00:00:00
abstract:INTRODUCTION:Lymphatic vessels are the preferential route of most solid tumors to spread their metastases in the body. The onset of metastatic nests in draining lymph nodes (LNs) are a significant indicator of cancer progression and a dismaying sign of worsen staging. Therefore, the individuation and elimination of can...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1080/17425247.2018.1446937
更新日期:2018-05-01 00:00:00
abstract:INTRODUCTION:Calcium channel blockers are a very important class of antihypertensive drugs. Most calcium channel blockers (CCBs) exhibiting low oral bioavailability are required to be taken more than once a day due to their short half-lives which result in poor patient compliance. There is an ineluctable requirement fo...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425247.2013.783562
更新日期:2013-08-01 00:00:00
abstract::Introduction: Systemically administered non-viral gene delivery systems face multiple biological barriers that decrease their efficiency. These systems are rapidly cleared from the circulation and sufficient concentrations do not accumulate in diseased tissues. A number of targeting strategies can be used to provide f...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1080/17425247.2019.1656196
更新日期:2019-10-01 00:00:00
abstract:INTRODUCTION:Recent developments in ultrasound imaging and ultrasound contrast agents (UCAs) improved diagnostic confidence in echography and set into motion their combined use as a tool for drug delivery and therapeutic monitoring. Non-invasive, precise and targeted delivery of drug molecules to pathological tissues b...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1080/17425247.2017.1266328
更新日期:2017-09-01 00:00:00
abstract::The advent of sophisticated drug delivery strategies for cancer applications has inundated the scientific and clinical community with new tactics and approaches such as molecular targeting, nanotechnology-based methods and personalized therapies. Unfortunately, the clinical impact has been moderate at best, falling si...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425247.4.4.359
更新日期:2007-07-01 00:00:00
abstract:INTRODUCTION:The development of therapeutics for central nervous system (CNS) disorders is still considered a challenging area in drug development due to insufficient translocation through the blood-brain barrier (BBB). Under normal conditions, BBB restrict the penetration of more than 98% of blood-borne molecules incl...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1080/17425247.2018.1444601
更新日期:2018-04-01 00:00:00
abstract::Functionalised carbon nanotubes (f-CNTs) are emerging as new tools in the field of nanobiotechnology and nanomedicine. This is because they can be easily manipulated and modified by encapsulation with biopolymers or by covalent linking of solubilising groups to the external walls and tips. The possibility of incorpora...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425247.1.1.57
更新日期:2004-11-01 00:00:00
abstract::Introduction: Poloxamer based in situ gelling systems offer numerous advantages in drug delivery; however, their application as prolonged-release delivery platforms is limited mainly due to their weak mechanical properties and the interconnected aqueous network causing fast gel erosion and drug diffusion.Area covered:...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1080/17425247.2020.1731469
更新日期:2020-04-01 00:00:00
abstract:INTRODUCTION:Reversible Addition Fragmentation Chain Transfer (RAFT) polymerisation is now an established tool for polymer chemists to create various polymer architectures with precise control over the molecular weight, and to install a variety of different moieties onto the polymer chain ends. Recently, there seems to...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425247.2011.548381
更新日期:2011-02-01 00:00:00
abstract::The pressurised metered-dose inhaler (pMDI) has now been available for 50 years. Once regarded as an inefficient and difficult-to-use device, the technology has evolved significantly over the last few years, particularly since the introduction of novel formulations containing hydrofluoroalkane (HFA) propellants. Many ...
journal_title:Expert opinion on drug delivery
pub_type: 历史文章,杂志文章,评审
doi:10.1517/17425247.4.3.215
更新日期:2007-05-01 00:00:00
abstract:IMPORTANCE OF THE FIELD:Vascular delivery of several classes of therapeutic agents may benefit from carriage by red blood cells (RBC), for example, drugs that require delivery into phagocytic cells and those that must act within the vascular lumen. The fact that several protocols of infusion of RBC-encapsulated drugs a...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425241003610633
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:Liposomes, phospholipids, nanosized bubbles with a bilayered membrane structure, have drawn a lot of interest as pharmaceutical carriers for drugs and genes. In particular, liposomes are widely used for drug delivery into tumors. OBJECTIVE:In many cases, to enhance the efficacy of the liposomal drugs, drug-...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425247.5.9.1003
更新日期:2008-09-01 00:00:00
abstract::Introduction: Making selective inhibitors of novel Gram-negative targets is not a substantial challenge - getting them into Gram-negative bacteria to reach their lethal target is the bottleneck. Poor permeability of the antibiotic requires high concentration causing off target activity. The lack of simple experimental...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章
doi:10.1080/17425247.2021.1847080
更新日期:2020-11-13 00:00:00
abstract:INTRODUCTION:Pressurized metered dose inhalers (pMDIs) are evolving to be a very effective drug delivery option in patients with airway diseases. They offer comparable lung deposition and reduced oropharyngeal deposition similar with the dry powder inhalers. As recommended by the Global Initiative for Asthma guidelines...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425247.2015.987661
更新日期:2015-06-01 00:00:00
abstract:INTRODUCTION:Simvastatin (SV) is a drug from the statin class, currently used orally as an anti-cholesterolemic drug. It inhibits the 3-hydroxy-3-methyl-glutaryl-Coenzyme A (HMG-CoA) reductase to reduce cholesterol synthesis. Recently, it has been found that SV also has several other protective pharmacological actions ...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1080/17425247.2016.1193150
更新日期:2016-10-01 00:00:00
abstract:INTRODUCTION:For poorly soluble compounds, a good bioavailability is typically needed to assess the therapeutic index and the suitability of the compound for technical development. In industry, the selection of the delivery technology is not only driven by technical targets, but also by constraints, such as production ...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425247.2011.614228
更新日期:2011-11-01 00:00:00
abstract::FlexTouch® (FT) is a new prefilled insulin pen with the unique characteristic of no extendable push button at any dose setting and consequently a low activation force. Its technical features along with health care professionals' and patients' preferences in comparison to other traditionally used devices for insulin de...
journal_title:Expert opinion on drug delivery
pub_type: 社论
doi:10.1517/17425247.2014.894505
更新日期:2014-05-01 00:00:00
abstract::Introduction: Incorrect inhaler technique is one reason why the efficacies of inhaled asthma treatments in clinical trials and effectiveness in the real world differ. Inhaler technique is critical for drug delivery to the lungs; incorrect technique negatively impacts asthma control and long-term outcomes. Breath-trigg...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1080/17425247.2019.1689957
更新日期:2019-12-01 00:00:00
abstract:BACKGROUND:Although various injected peptide and protein therapeutics have been developed successfully over the past 25 years, several pharmacokinetic and immunological challenges are still encountered that can limit the efficacy of both novel and established biotech molecules. OBJECTIVE AND METHOD:PEGylation is a pop...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425247.5.4.371
更新日期:2008-04-01 00:00:00
abstract::Introduction: Current therapies of neurodegenerative or neurometabolic diseases are, to a large extent, hampered by the inability of drugs to cross the blood-brain barrier (BBB). This very tight barrier severely restricts the entrance of molecules from the blood into the brain, especially macromolecular substances (i....
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1080/17425247.2020.1698544
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:The lung comprises an interesting route of administration not only for topical drugs but also for systemically acting drugs. Over the last years, several models have been developed in order to study the efficacy and safety of pulmonary drug delivery. OBJECTIVE:This review describes relevant drug delivery mo...
journal_title:Expert opinion on drug delivery
pub_type: 杂志文章,评审
doi:10.1517/17425240903241788
更新日期:2009-11-01 00:00:00