PSCA-targeted BPX-601 CAR T cells with pharmacological activation by rimiducid in metastatic pancreatic and prostate cancer: a phase 1 dose escalation trial.

Here we report results of a phase 1 multi-institutional, open-label, dose-escalation trial (NCT02744287) of BPX-601, an investigational autologous PSCA-directed GoCAR-T® cell product containing an inducible MyD88/CD40 ON-switch responsive to the activating dimerizer rimiducid, in patients with metastatic pancreatic (mPDAC) or castration-resistant prostate cancer (mCRPC). Primary objectives were to evaluate safety and tolerability and determine the recommended phase 2 dose/schedule (RP2D). Secondary objectives included the assessment of efficacy and characterization of the pharmacokinetics of rimiducid.

Peripheral neuropathy induced by paclitaxel: recent insights and future perspectives.

Paclitaxel is an antineoplastic agent derived from the bark of the western yew, Taxus brevifolia, with a broad spectrum of activity. Because paclitaxel promotes microtubule assembly, neurotoxicity is one of its side effects. Clinical use of paclitaxel has led to peripheral neuropathy and this has been demonstrated to be dependent upon the dose administered, the duration of the infusion, and the schedule of administration.

Randomized crossover pharmacokinetic study of solvent-based paclitaxel and nab-paclitaxel.

Purpose: Abraxane (ABI-007) is a 130-nm albumin-bound (nab) particle formulation of paclitaxel, devoid of any additional excipients. We hypothesized that this change in formulation alters the systemic disposition of paclitaxel compared with conventional solvent-based formulations (sb-paclitaxel; Taxol), and leads to improved tolerability of the drug.

Patients And Methods: Patients with malignant solid tumors were randomized to receive the recommended single-agent dose of nab-paclitaxel (260 mg/m(2) as a 30-minute infusion) or sb-paclitaxel (175 mg/m(2) as a 3-hour infusion).

Paclitaxel chemotherapy: from empiricism to a mechanism-based formulation strategy.

Paclitaxel is an anticancer agent effective for the treatment of breast, ovarian, lung, and head and neck cancer. Because of water insolubility, paclitaxel is formulated with the micelle-forming vehicle Cremophor EL to enhance drug solubility. However, the addition of Cremophor EL results in hypersensitivity reactions, neurotoxicity, and altered pharmacokinetics of paclitaxel.

Thalidomide metabolism and hydrolysis: mechanisms and implications.

Despite its controversial past, thalidomide is currently under investigation for the treatment of several disease types, ranging from inflammatory conditions to cancer. The mechanism of action of thalidomide is complex and not yet fully understood, but there is some evidence to suggest that metabolism may play a role. Consequently, there has been a considerable effort to characterize the metabolism of thalidomide in recent years.

The role of drug-metabolising enzymes in clinical responses to chemotherapy.

Interindividual differences in efficacy and toxicity of cancer chemotherapy are especially important given the narrow therapeutic index of these drugs. Pharmacokinetic and pharmacodynamic responses to chemotherapy are difficult to predict in a particular patient as numerous variables (e.g.

Drug interactions in cancer therapy.

Drug interactions in oncology are of particular importance owing to the narrow therapeutic index and the inherent toxicity of anticancer agents. Interactions with other medications can cause small changes in the pharmacokinetics or pharmacodynamics of a chemotherapy agent that could significantly alter its efficacy or toxicity. Improvements in in vitro methods and early clinical testing have made the prediction of potentially clinically significant drug interactions possible.

Determination of the heat shock protein 90 inhibitor 17-dimethylaminoethylamino-17-demethoxygeldanamycin in plasma by liquid chromatography-electrospray mass spectrometry.

A rapid method was developed for the quantitative determination of the novel heat shock protein 90 inhibitor, 17-dimethylaminoethylamino-17-demethoxygeldanamycin (17-DMAG; NSC707545), in human plasma. Calibration curves were constructed, and were analyzed using a weight factor proportional to the nominal concentration. Sample pretreatment involved a one-step extraction with ethyl acetate of 0.

Modulation of cytochrome P450 activity: implications for cancer therapy.

Although metabolism mediated by cytochrome P450 isoenzymes is known to play a major part in the biotransformation of anticancer agents in vivo, few clinical studies have investigated activity of cytochrome P450s and therapeutic outcome in people with cancer. Variability between individuals in the pharmacokinetics of cancer chemotherapy has important consequences in terms of therapeutic efficacy and safety. We discuss here the effect of drug metabolism mediated by cytochrome P450 on therapeutic outcome.

Leuprolide acetate given by a subcutaneous extended-release injection: less of a pain?

Androgen deprivation therapy is a mainstay for the treatment of advanced prostate cancer. Hormonal therapy commonly consists of injection of gonadotropin hormone-releasing hormone agonists. Based on the need for improved convenience of administration, a novel formulation of leuprolide acetate (Eligard; Atrix Laboratories Inc.

Comparative preclinical and clinical pharmacokinetics of a cremophor-free, nanoparticle albumin-bound paclitaxel (ABI-007) and paclitaxel formulated in Cremophor (Taxol).

Purpose: To compare the preclinical and clinical pharmacokinetic properties of paclitaxel formulated as a Cremophor-free, albumin-bound nanoparticle (ABI-007) and formulated in Cremophor-ethanol (Taxol).

Experimental Design: ABI-007 and Taxol were given i.v.

Comparative in vitro properties and clinical pharmacokinetics of Paclitaxel following the administration of taxol(r) and paxene(r).

Purpose: Taxol contains paclitaxel formulated in Cremophor EL-P (CrEL-P) and ethanol. Paxene is similar to Taxol, except for the use of Cremophor EL (CrEL) and the addition of citric acid. Here, we investigated the physicochemical properties and clinical pharmacokinetics of the two paclitaxel formulations.

Activities of cytochrome P450 1A2, N-acetyltransferase 2, xanthine oxidase, and cytochrome P450 2D6 are unaltered in children with cystic fibrosis.

The activities of hepatic cytochrome P450 (CYP) 1A2, N-acetyltransferase 2 (NAT-2), xanthine oxidase (XO), and CYP2D6 were evaluated in 12 young children (aged 3-8 years) with mild cystic fibrosis (CF) and 12 age-matched healthy control subjects by use of standard caffeine and dextromethorphan phenotyping methods. Subjects were given 4 oz of Coca-Cola (approximately 35 mg caffeine) (The Coca-Cola Company, Atlanta, Ga) and a single 0.5-mg/kg dose of dextromethorphan.