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Tariquidar and Docetaxel to Treat Patients With Lung, Ovarian, Renal and Cervical Cancer

A Clinical Trial of the P-Glycoprotein Antagonist, Tariquidar (XR9576), in Combination With Docetaxel in Patients With Lung, Ovarian, Renal and Cervical Cancer: Analysis of the Interaction Between Tariquidar and Docetaxel

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00069160
Enrollment
48
Registered
2003-09-16
Start date
2003-09-30
Completion date
2009-12-31
Last updated
2012-10-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cervix Neoplasms, Lung Neoplasms, Ovarian Neoplasms, Renal Neoplasms

Keywords

Pharmacokinetics, Pharmacodynamics, Multidrug Resistance Reversal, Molecular Target, P-Glycoprotein Inhibition, Lung Cancer, Ovarian Cancer, Cervical Cancer, Renal Cancer

Brief summary

The purpose of this study is three-fold: 1) to examine the ability of the experimental drug tariquidar to improve chemotherapy results by blocking a protein (P-glycoprotein) on some cancer cells that acts to pump out cancer drugs; 2) examine how tariquidar interacts with the cancer drug docetaxel; and 3) evaluate the effectiveness of combination treatment with tariquidar and docetaxel in treating patients with lung, ovarian, or cervical cancer. Patients 18 years of age and older with recurrent or metastatic (spreading) lung, cervical, or ovarian cancer who cannot benefit from any standard treatment may be eligible for this study. Candidates will be screened with a medical history and physical examination; review of pathology slides; blood and urine tests; imaging tests, including computed tomography (CT) or magnetic resonance imaging (MRI) scans; chest x-ray, electrocardiogram (EKG); and possibly echocardiogram. Participants will undergo the following tests and procedures: Blood draw. Blood is drawn before treatment begins to establish baseline levels for future blood tests. Blood counts are done twice weekly after chemotherapy begins. Central venous catheter placement. A plastic tube is put into a major vein in the chest. It is used to give the study drugs or other medications, including antibiotics and blood transfusions, if needed, and to withdraw blood samples. The line is usually placed under local anesthesia in the radiology department or the operating room. It can stay in the body for months or be removed after each treatment is completed. Chemotherapy. Treatment cycles are 21 days. Both drugs are given on day 1 of each cycle. First, tariquidar is given as a 30-minute infusion. One hour after the tariquidar infusion, docetaxel is infused over 1 hour. (For the first cycle only, docetaxel is given in divided doses one week apart and tariquidar is administered on either day 1 or day 8. The order of tariquidar administration is randomized to generate optimal pharmacokinetic data. Patients will be hospitalized for several days during this cycle to gather research data). The tariquidar dose remains the same throughout the study. Docetaxel may be increased or decreased from cycle to cycle, based on side effects.

Detailed description

Intrinsic and acquired drug resistance remain major obstacles in the treatment of cancer. Accumulating evidence indicates that in some malignancies P-glycoprotein (Pgp) can confer resistance, and that its reversal can improve therapeutic outcome. Clinical trials investigating Pgp antagonists have been hampered by the occurrence of unpredictable pharmacokinetic interactions, which have required dose reductions of the chemotherapeutic agents to avert excessive toxicity. Tariquidar (XR9576) is a new Pgp antagonist that is more potent and has prolonged activity. Phase I trials with paclitaxel, vinorelbine, and docetaxel have demonstrated that tariquidar (XR9576) has minimal pharmacokinetic interactions while surrogate studies have confirmed in vivo inhibition of Pgp-mediated drug transport.This study seeks to determine the pharmacokinetic interaction, if any between docetaxel and tariquidar and to evaluate the potential for activity in lung, ovarian, primary peritoneal, fallopian tube and cervical cancers. Renal cell cancer has been added in a 3/1/06 amendment. The secondary goal is to evaluate the impact of tariquidar on uptake of (99m)Tc-sestamibi in recurrent or metastatic tumors of patients with lung, ovarian, renal or cervical cancer.

Interventions

DRUGdocetaxel

Patients receive docetaxel intravenous (IV) over 1 hour on days 1 and 8.

Patients receive tariquidar intravenous (IV) over 30 minutes on days 8 and 22.

OTHER99mTc-sestamibi imaging

Bolus injection of 29 mCi of 99mTc-sestamibi intravenously for each imaging study.

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients must fulfill all of the following criteria to be eligible for study admission: * Age greater than or equal to 18 years. * Histologic or cytologic confirmation of lung, cervical, or ovarian cancer, following at least one standard treatment regimen, and for which there is no known standard therapy capable of extending life expectancy. Female patients with primary papillary carcinoma of the peritoneum and fallopian tube cancers will be included in the latter group, as the disease entities are closely associated with epithelial ovarian carcinoma, can be difficult to distinguish, have a similar epithelial origin, and are treated in an identical manner. * Histologic or cytologic confirmation of renal cell carcinoma (clear cell, type 1 and type II papillary chromophobe, collecting duct and medullary). Patients should have received either sunitinib or sorafenib, unless deemed ineligible for treatment with either agent. In addition,patient should either: (a) have received IL-2; (b) have been evaluated for therapy with Interleukin-2 (IL- 2) and deemed to be ineligible; or (c) have been evaluated for therapy with IL2 and refused treatment. * Performance status: Eastern Cooperative Oncology Group (ECOG) 0-2 * Life expectancy of 3 months or greater. * Suitable candidate for receiving planned therapy as evidenced by screening laboratory assessments hematologic, renal hepatic, and metabolic functions, platelet count greater than or equal to 90,000/mL, absolute granulocyte count(AGC) greater than or equal to 1,500/mL, serum creatinine greater than or equal to 1,500/mL, serum creatine less than or equal to 1.5 mg/dl )or if greater than 1.5 a measured 24 hour creatinine clearance greater than or equal to 50 mL/min) and serum glutamic oxaloacetic transaminase (SGOT) less than or equal to 2.5 x normal limit (NL) and bilirubin less than or equal to 1.5 x NL (in patients with clinical evidence of Gilbert's disease,less than or equal to 3 x NL). * Patients must be greater than or equal to 4 weeks prior radiation or chemotherapy, greater than 2 weeks from hormonal therapy; greater than 4 weeks from prior experimental therapy; greater than 6 weeks from mitomycin C; and greater than 8 weeks from prior UCN01 treatment. * No serious intercurrent medical illness. * Measurable disease by radiographic means or physical examination. For ovarian cancer, assessable disease by cancer antigen 125 (CA125) measurement is allowed. * Willingness to sign a written consent form, and to comply with the protocol.

Exclusion criteria

* The following patient populations are not eligible for this study. * Pregnant or nursing women are not eligible; women of childbearing age must agree to use an effective method of contraception. Pregnant women are not eligible because of teratogenic effects of chemotherapy. * The presence of a second malignancy that has not received primary treatment or would complicate the primary objective of this study. * Patients who are poor medical risk because of active, uncontrolled infection or other nonmalignant systemic disease. * Human immunodeficiency virus (HIV) seropositive patients. Patients infected with the HIV virus will be excluded from this trial because the effect of the combination of tariquidar and docetaxel on HIV replication and/or the immune system is unknown and potentially harmful. * Patients receiving agents which have major interactions with the cytochrome P450 3A4 (CYP3A4)drug metabolizing system and which cannot be discontinued may not be included in the trial. * Untreated brain metastases (or local treatment of brain metastases within the last 6 months) due to the poor prognosis of these patients and difficulty ascertaining the cause of neurologic toxicities.

Design outcomes

Primary

MeasureTime frameDescription
Geometric Mean of Maximum Concentration of the Drug (Cmax)24 hoursIn the first cycle patients were to receive docetaxel on days 1 and 8 and to be randomized to receive tariquidar on either day 1 or 8. Thus pharmacokinetic data with and without tariquidar can be compared.
The Number of Participants With Adverse Events.4 yrs 8-11 monthsHere are the total number of participants with adverse events. For the detailed list of adverse events see the adverse event module.
Geometric Mean of Area Under Curve (AUC0)-2424 hours
Clinical Response Rate4 years, 8-11 monthsResponse is determined by RECIST criteria defined as changes in only the largest diameter (unidimensional measurement) of the tumor lesion. Lesions are either measurable or non-measurable. Measurable lesions are defined as those that can be accurately measured in at least one dimension (longest diameter to be recorded) as \>/- 20 mm with conventional techniques (CT, MRI, xray) or as \>/- 10 mm with a spiral CT scan. Non-measurable lesions are defined as all other lesions (or sites of disease) including small lesions (longest diameter \<20 mm with conventional techniques or \<10 mm using spiral CT.

Secondary

MeasureTime frameDescription
Percent Increase in Sestamibi Area Under Curve (AUC) in Liver After Tariquidar3 - 24 hoursA significant change in the area under the curve(AUC) in liver tissue (normal tissue as a surrogate) is defined as P\<0.001. A secondary objective of this study was to establish whether tariquidar (150 mg) modulates Pgp in liver. Sestamibi is a Pgp substrate that may be a surrogate for measuring drug efflux from tumors. A baseline Tc-sestamibi scan was obtained before the administration of tariquidar. A minimum of 48 hours later, on or about day 22 a single dose of tariquidar was administered, followed by a second Tc-sestamibi scan.
Percent Increase in Sestamibi Area Under Curve (AUC) in Tumor Tissue3-24 hours99mTc-sestamibi is a radionuclide imaging agent used to study cardiac function that has also been shown to be a substrate for P-glycoprotein- mediated drug efflux. Because of the high expression of Pgp in liver tissue, sestamibi uptake in liver tissue is often monitored as a marker of Pgp inhibition. A significant change in the area under the curve(AUC) in liver tissue (normal tissue as a surrogate) is defined as P\<0.001.

Countries

United States

Participant flow

Participants by arm

ArmCount
Pts Who Received Docetaxel on Day 1, 8, & Tariquidar Day 8,22
Patients receive 40 mg/m\^2 docetaxel intravenous (IV) over 1 hour on days 1 and 8 and 150 mg tariquidar intravenous (IV) over 30 minutes on days 8 and 22. From cycle 2 and onward 75 mg/m\^2 docetaxel was administered every 21 days in combination with a single 150 mg tariquidar dose.
23
Pts Who Received Docetaxel on Days 1, 8, & Tariquidar Day 1,22
Patients receive docetaxel intravenous (IV) over 1 hour on days 1 and 8 and tariquidar intravenous (IV) over 30 minutes on days 1 and 22.From cycle 2 and onward 75 mg/m\^2 docetaxel was administered every 21 days in combination with a single 150 mg tariquidar dose.
25
Total48

Baseline characteristics

CharacteristicPts Who Received Docetaxel on Days 1, 8, & Tariquidar Day 1,22Pts Who Received Docetaxel on Day 1, 8, & Tariquidar Day 8,22Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
5 Participants4 Participants9 Participants
Age, Categorical
Between 18 and 65 years
20 Participants19 Participants39 Participants
Age Continuous55.77 years
STANDARD_DEVIATION 9.57
50.76 years
STANDARD_DEVIATION 9.54
53.37 years
STANDARD_DEVIATION 9.79
Region of Enrollment
United States
25 participants23 participants48 participants
Sex: Female, Male
Female
20 Participants18 Participants38 Participants
Sex: Female, Male
Male
5 Participants5 Participants10 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
23 / 2325 / 25
serious
Total, serious adverse events
6 / 238 / 25

Outcome results

Primary

Clinical Response Rate

Response is determined by RECIST criteria defined as changes in only the largest diameter (unidimensional measurement) of the tumor lesion. Lesions are either measurable or non-measurable. Measurable lesions are defined as those that can be accurately measured in at least one dimension (longest diameter to be recorded) as \>/- 20 mm with conventional techniques (CT, MRI, xray) or as \>/- 10 mm with a spiral CT scan. Non-measurable lesions are defined as all other lesions (or sites of disease) including small lesions (longest diameter \<20 mm with conventional techniques or \<10 mm using spiral CT.

Time frame: 4 years, 8-11 months

ArmMeasureValue (NUMBER)
Docetaxel AloneClinical Response Rate8 Percentage of participants
Primary

Geometric Mean of Area Under Curve (AUC0)-24

Time frame: 24 hours

Population: Docetaxel alone (C1D1 = 21 patients; C1D8 = 18 patients) Docetaxel with Tariquidar (C1D1 = 21 patients; C1D8 = 16 patients) Pharmacokinetic data were evaluable in 39 patients. Paired data from 31 participants were evaluable.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Docetaxel AloneGeometric Mean of Area Under Curve (AUC0)-24Both Groups (C1D1 + C1D8)1339 h*ng/mL
Docetaxel AloneGeometric Mean of Area Under Curve (AUC0)-24C1D11367 h*ng/mL
Docetaxel AloneGeometric Mean of Area Under Curve (AUC0)-24C1D81308 h*ng/mL
With TariquidarGeometric Mean of Area Under Curve (AUC0)-24Both Groups (C1D1 + C1D8)1373 h*ng/mL
With TariquidarGeometric Mean of Area Under Curve (AUC0)-24C1D11409 h*ng/mL
With TariquidarGeometric Mean of Area Under Curve (AUC0)-24C1D81327 h*ng/mL
p-value: >0.05t-test, 2 sided
Primary

Geometric Mean of Maximum Concentration of the Drug (Cmax)

In the first cycle patients were to receive docetaxel on days 1 and 8 and to be randomized to receive tariquidar on either day 1 or 8. Thus pharmacokinetic data with and without tariquidar can be compared.

Time frame: 24 hours

Population: Docetaxel alone (C1D1 = 21 patients; C1D8 = 18 patients) Docetaxel with Tariquidar (C1D1 = 21 patients; C1D8 = 16 patients) Data were evaluable in 39 patients. Paired data from 31 participants were evaluable.

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Docetaxel AloneGeometric Mean of Maximum Concentration of the Drug (Cmax)C1D11315 Cmax (ng/mL)
Docetaxel AloneGeometric Mean of Maximum Concentration of the Drug (Cmax)C1D81060 Cmax (ng/mL)
Docetaxel AloneGeometric Mean of Maximum Concentration of the Drug (Cmax)Both Groups (C1D1 + C1D8)1190 Cmax (ng/mL)
With TariquidarGeometric Mean of Maximum Concentration of the Drug (Cmax)C1D11093 Cmax (ng/mL)
With TariquidarGeometric Mean of Maximum Concentration of the Drug (Cmax)C1D81026 Cmax (ng/mL)
With TariquidarGeometric Mean of Maximum Concentration of the Drug (Cmax)Both Groups (C1D1 + C1D8)1063 Cmax (ng/mL)
Primary

The Number of Participants With Adverse Events.

Here are the total number of participants with adverse events. For the detailed list of adverse events see the adverse event module.

Time frame: 4 yrs 8-11 months

ArmMeasureValue (NUMBER)
Docetaxel AloneThe Number of Participants With Adverse Events.23 participants
With TariquidarThe Number of Participants With Adverse Events.25 participants
Secondary

Percent Increase in Sestamibi Area Under Curve (AUC) in Liver After Tariquidar

A significant change in the area under the curve(AUC) in liver tissue (normal tissue as a surrogate) is defined as P\<0.001. A secondary objective of this study was to establish whether tariquidar (150 mg) modulates Pgp in liver. Sestamibi is a Pgp substrate that may be a surrogate for measuring drug efflux from tumors. A baseline Tc-sestamibi scan was obtained before the administration of tariquidar. A minimum of 48 hours later, on or about day 22 a single dose of tariquidar was administered, followed by a second Tc-sestamibi scan.

Time frame: 3 - 24 hours

Population: Percent increase in sestamibi AUC in liver after tariquidar.

ArmMeasureValue (MEDIAN)
Docetaxel AlonePercent Increase in Sestamibi Area Under Curve (AUC) in Liver After Tariquidar82.2 percent increase in sestamibi AUC
Secondary

Percent Increase in Sestamibi Area Under Curve (AUC) in Tumor Tissue

99mTc-sestamibi is a radionuclide imaging agent used to study cardiac function that has also been shown to be a substrate for P-glycoprotein- mediated drug efflux. Because of the high expression of Pgp in liver tissue, sestamibi uptake in liver tissue is often monitored as a marker of Pgp inhibition. A significant change in the area under the curve(AUC) in liver tissue (normal tissue as a surrogate) is defined as P\<0.001.

Time frame: 3-24 hours

ArmMeasureValue (MEDIAN)
Docetaxel AlonePercent Increase in Sestamibi Area Under Curve (AUC) in Tumor Tissue12.4 Percent

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026