CLINICAL TRIALS PROFILE FOR TARIQUIDAR
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Clinical Trials for Tariquidar
| Trial ID | Title | Status | Sponsor | Phase | Summary |
|---|---|---|---|---|---|
| NCT00011414 ↗ | Phase I Trial of Tariquidar (XR9576) in Combination With Doxorubicin, Vinorelbine, or Docetaxel in Pediatric Patients With Solid Tumors | Completed | National Cancer Institute (NCI) | Phase 1 | This study will evaluate the tolerance and effects of tariquidar, given in combination with one of three anticancer drugs, for treating solid tumors. Tariquidar works by blocking a pump on a cancer cell. The pump on a cell that prevents anticancer drugs from accumulating is called Pgp (P-glycoprotein). Researchers hope to see whether cancer-fighting drugs can stay in the cells longer. Patients ages 2 to 18 who have solid tumors may be eligible for this study. Tariquidar is infused intravenously (IV) over 30 minutes, given every 21 to 28 days, with one drug that kills cancer cells. Patients are examined by a doctor at least once weekly during treatment and will have routine blood tests twice weekly. They will receive one of the following drugs with tariquidar: doxorubicin (Adriamycin ), vinorelbine (Navelbine ), or docetaxel (Taxotere ). At the first treatment cycle only, there is a baseline Sestamibi scan before treatment and a second one immediately after drug administration. If patients receive tariquidar with doxorubicin, tariquidar is given alone. Then 48 to 72 hours later, the second dose is given, followed by doxorubicin by IV over 15 minutes. Dexrazoxane, which decreases damaging effects of doxorubicin on the heart, is also given by IV over 15 minutes. Granulocyte colony stimulating factor (G-CSF) is injected daily 48 hours after doxorubicin, to alleviate doxorubicin s effect on white blood cells. If patients receive tariquidar with vinorelbine, tariquidar is given alone. Then 48 to 72 hours later, the second dose is given, immediately followed by vinorelbine by IV over 10 minutes; then 1 week later, tariquidar is again given, immediately followed by vinorelbine by IV for 10 minutes. G-CSF is given daily. If patients receive tariquidar with docetaxel, tariquidar is given alone. Then 48 to 72 hours later, the second dose is given, followed by docetaxel by IV over 60 minutes. Drugs to prevent allergic reactions are given before and after each docetaxel dose. G-CSF is given daily. Tariquidar may affect blood pressure during infusion, and there can be reduction of normal blood cells, gastrointestinal problems, and allergic reactions. The radioactive Sestamibi can cause headache, chest pain, and nausea. Radiation used in this study has been approved as involving a slightly greater than minimal risk for adults and an acceptable risk for children. This radiation is considered necessary to obtain information desired. One possible effect is a slight increase in the risk of cancer. This study may or may not have a direct benefit for participants. However, knowledge gained may benefit people with cancer in the future. |
| NCT00042302 ↗ | A Double-Blind, Randomized, Placebo-Controlled, Multicenter, Phase III Study of Tariquidar + Paclitaxel/Carboplatin as First-Line Therapy in Non-Small Cell Lung Cancer (NSCLC) | Terminated | QLT Inc. | Phase 3 | To determine whether tariquidar + combined first-line chemotherapy of paclitaxel/carboplatin in patients with Stage IIIb/IV NSCLC will, with an acceptable safety profile, significantly improve overall survival compared with placebo + paclitaxel/carboplatin. To compare the effects of tariquidar/paclitaxel/carboplatin with placebo/paclitaxel/carboplatin on tumor response, time to disease progression, performance status, symptom progression, and quality of life in patients with Stage IIIb/IV NSCLC. |
| NCT00042315 ↗ | A Double-Blind, Randomized, Placebo-Controlled, Multicenter, Phase III Study of Tariquidar + Vinorelbine as First-Line Therapy in Non-Small Cell Lung Cancer (NSCLC) | Terminated | QLT Inc. | Phase 3 | To determine whether tariquidar + first-line single agent vinorelbine chemotherapy in patients with Stage IIIb/IV NSCLC will, with an acceptable safety profile, significantly improve overall survival compared with placebo + vinorelbine. To compare the effects of tariquidar/vinorelbine with placebo/vinorelbine on tumor response, time to disease progression, performance status, symptom progression, and quality of life in patients with Stage IIIb/IV NSCLC. |
| NCT00048633 ↗ | Phase II Study to Evaluate Tariquidar (XR9576), a Selective MDR-1 Inhibitor, in Chemotherapy Resistant Advanced Breast Cancer | Completed | QLT Inc. | Phase 2 | The primary objective of this phase II study is to assess if XR9576, a selective MDR-1 inhibitor, is able to reverse primary doxorubicin or taxane resistance in advanced breast cancer. Clinical activity will be measured by objective tumor response rates observed after treatment with XR9576 in combination with taxane or anthracycline containing chemotherapy in patients previously resistant to the same agent(s). The secondary objectives of the study are to assess the biological activity of XR9576 and evaluate MDR-1 expression in these tumors. The MDR-1 inhibitory activity of XR9576 will be evaluated by serial sestamibi scans of the tumor. MDR-1 expression will be detected by immunohistochemistry. |
| NCT00069160 ↗ | Tariquidar and Docetaxel to Treat Patients With Lung, Ovarian, Renal and Cervical Cancer | Completed | National Cancer Institute (NCI) | Phase 2 | 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. |
| NCT00071058 ↗ | Surgery Plus Chemotherapy (Doxorubicin, Vincristine and Etoposide), Mitotane, and Tariquidar to Treat Adrenocortical Cancer | Completed | National Cancer Institute (NCI) | Phase 2 | This study will examine the safety and effectiveness of treating adrenocortical cancer with combination chemotherapy using doxorubicin, vincristine, and etoposide in addition to the drugs mitotane and tariquidar and, when possible, surgery. Adrenocortical cancer cells have a large amount of a protein called P-glycoprotein that "pumps" anti-cancer drugs out of the cells, decreasing their effectiveness. Continuous infusions of doxorubicin, vincristine, and etoposide may improve chemotherapy results by blocking the P-glycoprotein pump, as may use of tariquidar, an experimental drug that is known to block the P-glycoprotein pump. Patients 18 years of age and older with adrenocortical cancer that has recurred, spread, or cannot be treated surgically may be eligible for this study. Candidates will be screened with a medical history and physical examination; review of pathology slides; blood tests; electrocardiogram (EKG); imaging tests, including computed tomography (CT) of the chest, abdomen and pelvis; chest x-ray; and possibly a bone scan or other imaging tests needed to evaluate the cancer, urine studies, and an echocardiogram. Also, a biopsy (removal of a small sample of tumor tissue) may be required if a specimen is not available to confirm the cancer. Participants will undergo the following tests and procedures: - Tumor biopsy. Before starting chemotherapy, a small piece of tumor is removed to study the P-glycoprotein pump and to determine the tumor genetics. - Blood draw. Blood is drawn before treatment begins to establish baseline levels for future blood tests. - Central venous catheter placement. A specially trained physician places a plastic tube into a major vein in the chest. The tube is used to give the study drugs and other medications and to withdraw blood samples. It can stay in the body for months or be removed after each treatment is completed. The tube placement is done under a local anesthetic in the radiology department or operating room. - Chemotherapy. Treatment cycles are 21 days. Doxorubicin, vincristine, and etoposide are given through the central venous catheter by an infusion pump continuously over 96 hours starting day 1 of each cycle. The dose of these drugs may be increased or decreased from cycle to cycle, based on side effects. Mitotane is given in pill form starting day 1 of cycle 1 and is taken every day throughout the entire study. The mitotane dose is gradually increased as long as the side effects are tolerable. Tariquidar is given through the central venous catheter as a 30-minute infusion on days 1 and 3 of every cycle. The tariquidar dose remains the same throughout the study. Treatment will continue for two cycles after all the cancer is gone, or until surgery is done to remove some or all of the remaining cancer, or, if surgery is not an option, until the cancer has grown to where it is defined as progressive disease. - Nuclear scans. A nuclear scan is done before treatment begins and again on day 1 or day 3 of the first treatment cycle after administration of tariquidar to evaluate the P glycoprotein response to treatment. - Computed tomography (CT) scans. These scans are done every two treatment cycles to follow disease progress. - Surgery. Surgery to remove areas of cancer may be considered at any point during the study (including before beginning treatment), if it is deemed beneficial. Treatment with the study drugs will begin or resume after surgery. The length of treatment will depend on the response to treatment before the surgery and on whether there is any cancer remaining after the surgery. |
| NCT00082368 ↗ | PET Imaging With Tc-94m Sestamibi to Assess Resistance to Chemotherapy | Completed | National Cancer Institute (NCI) | Phase 2 | Background: - Tc-94m sestamibi is a radioactive imaging drug approved by the Food and Drug Administration to help photograph and study bodily functions. - Tc-94m sestamibi accumulates in tumor cells and is eliminated from them in much the same way that some chemotherapy drugs are eliminated from cancer cells in patients with drug resistance. - P-glycoprotein is a protein found on the surface of some cancer cells. The protein causes the cells to pump out, or reject, some types of chemotherapy drugs. P-glycoprotein also makes the cells reject sestamibi. - Some drugs, including a drug called tariquidar, may block the pumping action of P-glycoprotein, giving the chemotherapy more time to work. Tariquidar can also help sestamibi stay in the cells longer. Objectives: -To evaluate the use of sestamibi for determining if chemotherapy is being rejected and if enough of the blocking drugs are present to stop the rejection. Eligibility: -Patients18 years of age and older with a tumor 2 cm or larger who are enrolled in or are eligible for enrollment in an active National Cancer Institute treatment protocol. Design: - Patients have two scans, one before receiving any drugs and a second 1-2 hours after receiving tariquidar. The second scan is done 72 or more hours after the first. For both scans, Tc-94m sestamibi is injected into a vein and a series of pictures are taken with an imaging camera called a PET (positron emission tomography) scanner. The pictures show where the sestamibi distributes in the body and monitors the effects of tariquidar on drug resistance. Blood samples are collected during the scan to examine the effect of tariquidar on P-glycoprotein in normal cells. - Some patients may be asked to undergo a tumor biopsy to test for the presence of the P-glycoprotein on their cancer cells. This will be requested only in patients whose tumor is easily accessible and in whom a biopsy can be done with minimal risk. |
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