Neoplasms

All Conditions

Skin and Connective Tissue Diseases

Urinary Tract, Sexual Organs, and Pregnancy Conditions

Gland and Hormone Related Diseases

Blood and Lymph Conditions

Immune System Diseases

Rare Diseases

Carcinoma

Breast Neoplasms

Carcinoma, Renal Cell

Ovarian Neoplasms

Carcinoma, Ovarian Epithelial

Lymphoma

Urogenital Diseases

Female Urogenital Diseases

Pregnancy Complications

Female Urogenital Diseases and Pregnancy Complications

Urogenital Neoplasms

Adenocarcinoma

Neoplasms, Glandular and Epithelial

Neoplasms by Histologic Type

Kidney Neoplasms

Urologic Neoplasms

Kidney Diseases

Urologic Diseases

Male Urogenital Diseases

Ovarian Cancer

Ovarian Epithelial Cancer

Lymphosarcoma

Antineoplastic Agents

All Drugs and Chemicals

Anti-Infective Agents

Antirheumatic Agents

Dermatologic Agents

Paclitaxel

Albumin-Bound Paclitaxel

Cyclosporine

Cyclosporins

polysaccharide-K

Tubulin Modulators

Antimitotic Agents

PSC 833

paclitaxel

This is a dosage escalation study to estimate the maximum tolerated dose of drug resistance inhibitor PSC 833 given in combination with paclitaxel. Groups of 3 to 6 patients receive continuous-infusion paclitaxel for 5 days and oral PSC 833 for 6-7 days, following paclitaxel on the first course, then beginning 3 days prior to paclitaxel on subsequent courses.

Stable and responding patients are re-treated every 21 days, with paclitaxel dose adjusted to maintain an absolute neutrophil count less than 500 for no more than 4 days.

The clinical study entitled "A Phase I Study of Infusional Paclitaxel with the P-glycoprotein Antagonist PSC 833" seeks to determine the maximum tolerated dose for the proposed P-glycoprotein antagonist, PSC 833, in combination with paclitaxel. PSC 833 is a cyclosporine analogue which is purportedly non-nephrotoxic and non-immunosuppressive. It has been shown in in vitro studies to enhance chemosensitivity as well as cyclosporine and to be far better at increasing intracellular drug accumulation than the concentrations of verapamil which are clinically achievable. The purpose of this study is to define the maximum tolerated dose in combination with paclitaxel, and to determine how the drug affects the pharmacokinetics of paclitaxel. PSC 833 will most likely reduce the clearance of paclitaxel as reported for the parent compound, cyclosporine. This effect will increase the area under the curve (AUC) of paclitaxel, may increase toxicity, and requires that the escalation scheme for PSC 833 be a conservative one. The first cycle of paclitaxel will be given in the absence of PSC 833. Subsequently, 7 days of PSC 833 will be given alone to allow monitoring of pharmacokinetics and adverse effects of PSC 833 alone. In the second cycle, both agents will be combined. Escalation of the PSC 833 will continue until a target concentration is reached, or until the maximum tolerated dose is reached. Clinical responses will be monitored in order to provide the best possible medical care to our patients.

A Phase I Study of Infusional Paclitaxel With the P-Glycoprotein Antagonist PSC 833

National Cancer Institute (NCI)

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
A Phase I Study of Infusional Paclitaxel With the P-Glycoprotein Antagonist PSC 833	NCT00001383	Breast Cancer Cancer Carcinoma, Rena... Lymphoma Ovarian Cancer	PSC 833 paclitaxel	-	National Institutes of Health Clinical Center (CC)
A Phase I Study of Infusional Paclitaxel With the P-Glycoprotein Antagonist PSC 833	NCT00001383	Breast Cancer Cancer Carcinoma, Rena... Lymphoma Ovarian Cancer	PSC 833 paclitaxel	-	National Institutes of Health Clinical Center (CC)

Spots Global Cancer Trial Database for pump blocker

Every month we try and update this database with for pump blocker cancer trials from around the world to help patients and their families find trials that might be right for them.
We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.