Abstract:
:Nasal sprays containing different concentrations of the somatostatin analogue octreotide and sodium tauro-24,25-dihydrofusidate (STDHF) as an absorption promoter were evaluated in two consecutive pharmacokinetic studies in healthy volunteers to characterize their bioavailability and local tolerability. The concentrations of STDHF were selected on the basis of a phase diagram generated by a dynamic laser light-scattering technique to ensure that the mixture was above the critical micellar concentrations. Compared to a 50-micrograms subcutaneous injection, the nasal spray formulation without STDHF had a mean relative bioavailability of 17.9%. For nasal formulations containing 3 and 1.65% (w/v) of STDHF, the bioavailability increased to 29.0 and 25.7%, respectively. The enhancement of nasal absorption was dependent on the STDHF concentrations as shown by decreasing the amounts to 1.2 and 0.8% (w/v) for tolerability reasons; the bioavailability was reduced to 15.3 and 20.5% in these cases, respectively. The local tolerability of all STDHF-containing sprays was poor, leading to stinging sensations and lacrimation. The poor local tolerability of the octreotide nasal spray containing different concentrations of STDHF required for effective nasal absorption enhancement appears to be impractical for further clinical development. These findings clearly stress the necessity to investigate tolerability and safety issues of new drug delivery systems in early developmental phases.
journal_name
Pharm Resjournal_title
Pharmaceutical researchauthors
Kissel T,Drewe J,Bantle S,Rummelt A,Beglinger Cdoi
10.1023/a:1018927710280subject
Has Abstractpub_date
1992-01-01 00:00:00pages
52-7issue
1eissn
0724-8741issn
1573-904Xjournal_volume
9pub_type
临床试验,杂志文章,随机对照试验abstract:PURPOSE:This study aimed to assess impact of different vehicles for laser-assisted skin drug delivery. We also tried to uncover the mechanisms by which different vehicles affect laser-aided skin permeation. METHODS:Full-surface ablative (conventional) and fractional lasers were used to irradiate nude mouse skin. Imiqu...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-013-1167-4
更新日期:2014-02-01 00:00:00
abstract:PURPOSE:Penetration enhancers (PEs) enhancing efficacy depends on two processes: PEs release from patches and action on skin. Compared with their action on skin, PEs release process was poorly understood. Therefore, the purpose of this study was to make a mechanistic understanding of PEs release from acrylic pressure-s...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-020-02901-0
更新日期:2020-08-13 00:00:00
abstract:PURPOSE:The purpose of this study was to investigate the delivery of itraconazole (ITZ) particles to a murine lung model by nebulization. METHODS:Three ITZ formulations were prepared and characterized in the dry state using contact angle, dissolution, X-ray powder diffraction, scanning electron microscopy, and Brunaue...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-006-9904-6
更新日期:2006-05-01 00:00:00
abstract:PURPOSE:We prepared injectable microspheres for controlled release of TAK-029, a water-soluble GPIIb/IIIa antagonist and discussed the characteristics of controlled release from microspheres. METHODS:Copoly(dl-lactic/glycolic)acid (PLGA) microspheres were used for controlled release of TAK-029 [4-(4-amidinobenzoylglyc...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1012190304074
更新日期:1997-09-01 00:00:00
abstract:PURPOSE:Cisplatin, is recognized as a first line therapeutic for the treatment of non-small cell lung cancer (NSCLC). Cisplatin resistance is identified as the most detrimental complication during treatment and has been associated with upregulation of several genes, such as the anti-apoptotic gene survivin. In this stu...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-016-2016-z
更新日期:2016-12-01 00:00:00
abstract:PURPOSE:Pulmonary antibiotic delivery is recommended as maintenance therapy for cystic fibrosis (CF) patients who experience chronic infections. However, abnormally thick and sticky mucus present in the respiratory tract of CF patients impairs mucus penetration and limits the efficacy of inhaled antibiotics. To overcom...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-016-1921-5
更新日期:2016-08-01 00:00:00
abstract:PURPOSE:Chemically modified heparin-DOCA was prepared and found to have markedly lower anticoagulant activity than heparin. In the present study, we elucidated the antiangiogenic and antitumoral activities of heparin-DOCA derivative. METHODS:To evaluate the antiangiogenic and antitumoral effects of heparin-DOCA, capil...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-006-9139-6
更新日期:2007-01-01 00:00:00
abstract:PURPOSE:To develop a method for drawing statistical inferences from differences between multiple experimental pair distribution function (PDF) transforms of powder X-ray diffraction (PXRD) data. METHODS:The appropriate treatment of initial PXRD error estimates using traditional error propagation algorithms was tested ...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-010-0259-7
更新日期:2010-12-01 00:00:00
abstract:PURPOSE:Gastrointestinal deposition of nanoparticles was examined after oral administration to mice suffering from an experimental gastric ulcer model. Local drug delivery could reduce side effects and would be a distinct improvement compared to existing therapeutic approaches, e.g. in the local therapy of Helicobacter...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-009-9834-1
更新日期:2009-05-01 00:00:00
abstract::The pharmacokinetics of trilostane and one of its metabolites ketotrilostane are described and characterized in the rat following the separate intravenous administration of trilostane and ketotrilostane. It was noted during these studies that the parent compound and its metabolite undergo metabolic interconversion-tri...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1015828027060
更新日期:1992-04-01 00:00:00
abstract::Published permeability coefficient (Kp) data for the transport of a large group of compounds through mammalian epidermis were analyzed by a simple model based upon permeant size [molecular volume (MV) or molecular weight (MW)] and octanol/water partition coefficient (Koct). The analysis presented is a facile means to ...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1015810312465
更新日期:1992-05-01 00:00:00
abstract::A biopharmaceutics drug classification scheme for correlating in vitro drug product dissolution and in vivo bioavailability is proposed based on recognizing that drug dissolution and gastrointestinal permeability are the fundamental parameters controlling rate and extent of drug absorption. This analysis uses a transp...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1016212804288
更新日期:1995-03-01 00:00:00
abstract::Under the heading "Methods-Synthesis of the Bioreducible Modified-PAE (mPAE)", on page 3, line 14-17, there is an error. The quantity unit of PAE and 2-iminothiolane hydrochloride needs to be corrected to mg instead of g. ...
journal_title:Pharmaceutical research
pub_type: 杂志文章,已发布勘误
doi:10.1007/s11095-018-2488-0
更新日期:2018-09-05 00:00:00
abstract::Photodegradation of solutions of metronidazole in the presence and absence of sodium urate was studied. Photodegradation appeared to follow zero-order kinetics and was found to be dependent on the pH, buffer species, sodium urate concentration, and light source. Complex formation between metronidazole and sodium urate...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1015851719579
更新日期:1989-01-01 00:00:00
abstract::The transient dynamic swelling and dissolution behavior during the release of a growth hormone releasing peptide, [D-Trp2-D-Phe5]GHRP, from erodible, non-cross-linked poly(methyl methacrylate-co-methacrylic acid) (PMMA/MAA) beads has been investigated at pH 7.4 as a function of buffer concentration. Although the swell...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1018902404036
更新日期:1993-07-01 00:00:00
abstract:PURPOSE:This study focuses on the formulation optimization, in vitro and in vivo performance of differently sized nano-crystalline liquid suspensions and spray-dried powders of a poorly soluble BCS class II compound i.e. Danazol. METHODS:A DoE approach was utilized to optimize stabilizer concentration and formulate da...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-014-1567-0
更新日期:2015-05-01 00:00:00
abstract:PURPOSE:Simvastatin (SIM), a HMG-CoA reductase inhibitor widely prescribed for hypercholesterolemia, has been reported to ameliorate inflammation and promote osteogenesis. Its clinical applications on these potential secondary indications, however, have been hampered by its lack of osteotropicity and poor water solubil...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-018-2444-z
更新日期:2018-06-25 00:00:00
abstract::Loracarbef is an oral 1-carba-1-dethiacephalosporin antibiotic structurally related to cefaclor. Like many beta-lactam antibiotics, loracarbef exists in several hydrated crystalline forms. The pH-solubility profile curve for loracarbef monohydrate is U-shaped, resembling those of other zwitterionic cephalosporins. Lor...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1018949709797
更新日期:1992-02-01 00:00:00
abstract:PURPOSE:Supramolecular Biovectors (SMBV) consist of cross-linked cationic nanoparticles surrounded by a lipid membrane. The purpose was to study the structure of the lipid membrane and to characterise its interaction with the nanoparticles in order to differentiate SMBV from other polymer/lipid associations. METHODS:T...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1007504124603
更新日期:2000-07-01 00:00:00
abstract:PURPOSE:Some therapeutic peptides exhibit amyloidogenic properties that cause insolubility and cytotoxicity against neuronal cells in vitro. Here, we characterize the conformational change in monomeric therapeutic peptide to its fibrillar aggregate in order to prevent amyloidogenic formation during clinical application...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/b:pham.0000033016.36825.2c
更新日期:2004-07-01 00:00:00
abstract:PURPOSE:To investigate, for the first time, the performance of a dry powder inhaler (DPI, Aerolizer(®)) in the case of a model drug (i.e. albuterol sulphate) formulated with spray dried mannitol carrier particles with homogeneous shape and solid-state form but different sizes. METHODS:Spray dried mannitol (SDM) partic...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-013-1132-2
更新日期:2014-01-01 00:00:00
abstract::New generation vaccines, particularly those based on recombinant proteins and DNA, are likely to be less reactogenic than traditional vaccines but are also less immunogenic. Therefore, there is an urgent need for the development of new and improved vaccine adjuvants. Adjuvants can be broadly separated into two classes...
journal_title:Pharmaceutical research
pub_type: 杂志文章,评审
doi:10.1023/a:1016104910582
更新日期:2002-06-01 00:00:00
abstract:PURPOSE:To explore whether miR-19 is involved in the regulation of multidrug resistance (MDR), one of the main causes of breast cancer mortality, and modulates sensitivity of tumor cells to chemotherapeutic agents. METHODS:We analyzed miRNA expression levels in three MDR cell lines in comparison with their parent cell...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-011-0570-y
更新日期:2011-12-01 00:00:00
abstract:PURPOSE:To examine the inhibitory potential of enalapril [and other angiotensin converting enzyme (ACE) inhibitors] on glycylsarcosine (GlySar) transport by the high-affinity renal peptide transporter. METHODS:Studies were performed in rabbit renal brush border membrane vesicles in which the uptake of radiolabeled Gly...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1018847818766
更新日期:1999-05-01 00:00:00
abstract:PURPOSE:The purpose of the present study is to explore whether a poly-L-arginine (poly-L-Arg)-induced increase in tight junctions (TJ) permeability of fluorescein isothiocyanate-labeled dextran (MW 4.4 kDa, FD-4) is associated with the Ca2+-dependent signaling and occurs following the phosphorylation/dephosphorylation ...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/b:pham.0000003383.86238.d1
更新日期:2003-11-01 00:00:00
abstract:PURPOSE:Understanding the critical factors governing the crystallization tendency of organic compounds is vital when assessing the feasibility of an amorphous formulation to improve oral bioavailability. The objective of this study was to investigate potential links between viscosity and crystallization tendency for or...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-011-0540-4
更新日期:2012-01-01 00:00:00
abstract:PURPOSE:To determine the factors influencing "solid solubility" and phase separation kinetics of drugs from amorphous solid dispersions. METHODS:Solid dispersions of griseofulvin-poly(vinyl pyrrolidone) (PVP) and indoprofen-PVP were prepared using solvent evaporation technique. Dispersions demonstrating single Tg were...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-004-1882-y
更新日期:2005-03-01 00:00:00
abstract:PURPOSE:Since the absorption of ceftriaxone (CTO) in the intestine is restricted by its natural physiological characteristics, we developed a series of small synthetic compounds derived from bile acids to promote the absorption of CTO in the gastrointestinal tract. METHODS:Several bile acid derivatives were screened b...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-012-0932-0
更新日期:2013-04-01 00:00:00
abstract:PURPOSE:The objective of this study was to determine the influence of the peptide bond with emphasis on the carbonyl group on the interaction with and transport by the intestinal small-peptide carrier. Therefore enalapril, a known substrate for the small-peptide carrier, has been modified to an analogue with a reduced ...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1018866611555
更新日期:1999-01-01 00:00:00
abstract:PURPOSE:To investigate the suitability of three antimicrobial peptides (AMPs) as cell-penetrating antimicrobial peptides. METHODS:Cellular uptake of three AMPs (PK-12-KKP, SA-3 and TPk) and a cell-penetrating peptide (penetratin), all 5(6)-carboxytetramethylrhodamine-labeled, were tested in HeLa WT cells and analyzed ...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-014-1550-9
更新日期:2015-05-01 00:00:00