CLINICAL TRIALS PROFILE FOR ONAPRISTONE
✉ Email this page to a colleague
Clinical Trials for Onapristone
| Trial ID | Title | Status | Sponsor | Phase | Summary |
|---|---|---|---|---|---|
| NCT00555919 ↗ | ZK 230211 in Postmenopausal Woman With Metastatic Breast Cancer | Completed | Bayer | Phase 2 | Randomized phase II study to investigate the efficacy, safety and tolerability of ZK 230211 (100 mg vs. 25 mg) as second-line endocrine therapy for postmenopausal women with hormone receptor-positive metastatic breast cancer.Once the cancer has spread beyond the lymph nodes to areas such as e.g. the skin, soft tissues, lung, and liver it is called metastatic breast cancer. Patients who have been diagnosed with metastatic breast cancer that has progressed since their previous cancer treatment and that cannot be removed completely by surgery are eligible to be treated within this trial.Treatment with a new drug called Progesterone Receptor Antagonist ZK 230211 (ZK PRA) targets the progesterone receptor which may be expressed on breast cancer tumour cells. Therefore only patients with this progesterone receptor on their tumour cells can be included in this study.Progesterone receptor antagonists (including onapristone) have already shown efficacy in postmenopausal women with advanced breast cancer (Klijn et al. 2000). This phase II study investigates the efficacy (proof of concept), safety and tolerability of ZK PRA at two dose levels (25 mg and 100 mg) before initiating pivotal phase III trials. |
| NCT02049190 ↗ | Phase 1-2 Study of Onapristone in Patients With Advanced Castration-resistant Prostate Cancer | Unknown status | Arno Therapeutics | Phase 1/Phase 2 | This is an open-label, randomized, parallel group two-stage phase 1-2 study with an escalation and an expansion component. This study will evaluate an extended-release (ER) formulation of onapristone in patients with prostate cancer in which Progesterone Receptor (PR) may be contributing to tumor progression. A companion diagnostic to select patients whose prostate cancer expresses the activated form of the PR (APR) is under development and will be implemented in this study; it may be used to further enrich the selection of the population based upon ongoing review of the results. Patients will be treated until occurrence of an intolerable safety issue, treatment failure, if patient elects to withdraw, or for non-compliance with either protocol-specified evaluations or onapristone treatment. An additional cohort of patients will be included at the recommended phase 2 dose to gain additional understanding of the onapristone safety profile and potential anti-cancer activity. |
| NCT02052128 ↗ | Phase 1-2 Study of Onapristone in Patients With Progesterone Receptor Expressing Cancers | Unknown status | Arno Therapeutics | Phase 1/Phase 2 | This is a multi-center, open-label, randomized, parallel group two-stage phase 1 study with a phase 2 expansion component in pts with recurrent or metastatic APRpos uterine endometrioid adenocarcinoma. Stage 1: Six dose cohorts, 5 using the extended release tablet (ER) formulation (10 mg BID, 20 mg BID, 30 mg BID, 40 mg BID, 50 mg BID) and 1 using the immediate-release (IR) tablet formulation 100 mg QD will be randomized in parallel. After enrollment of 36 patients in Stage 1, a dose of 50 mg BID was determined to be the RP2D. Stage 2: An additional 10 patients with recurrent or metastatic APRpos uterine endometrioid adenocarcinoma (Stage 2a) will be enrolled at the RP2D. Based on the response in Stage 2a, the cohort will be further expanded by up to 19 more patients to a total of 29 patients to confirm the efficacy and safety profile of onapristone in this selected patient population (Stage 2b). |
| NCT02651844 ↗ | Mifepristone for Breast Cancer Patients With Higher Levels of Progesterone Receptor Isoform A Than Isoform B. | Completed | Agencia Nacional de Promoción de Ciencia y Tecnología, MINCYT | N/A | - Seventy per cent of breast cancers express estrogen (ER) and progesterone receptors (PR) and respond to endocrine treatment. - Actual therapy targets ER. - There is enough evidence that progestins participate regulating breast cancer growth. - Antiprogestins block cell proliferation and increase apoptosis in breast cancer models which express high levels of PRA. - Antiprogestins have been used to treat breast cancer patients that failed to other treatments; benefits were seen in selected patients. - Mifepristone (MFP) is currently used for medical abortion and for the treatment of Cushing disease. - MFP might exert agonistic effects when PRB isoform is activated by cAMP. This makes mandatory the evaluation of the PR isoform ratio in breast cancer patients in which MFP is a therapeutic possibility. Main Goal To evaluate if therapeutic doses of MFP exert beneficial effects on breast cancers expressing levels of PRA higher than those of PRB, evaluated as an inhibition in proliferation markers and/or an increase in apoptotic markers. - Eligibility - Postmenopausal women (one year after menses stop). - Women with tumors showing ratios of PRA/PRB higher than 1.5 and PR higher than 50%. - Women without previous treatment. - All clinical stages with tumors larger than 1.5 cm. - Patients without autoimmune diseases and/or asthma. - Study design - Open Interventional. - Twenty women will take MFP (200 mg) p.o. once /day during 14 days. As for preliminary studies, to reach this number the investigators will have to evaluate 80-100 patients. - Surgery is performed 14 days after treatment initiation, 24 hs after last dose. - PR isoform ratio will be evaluated by western blots (WB) in one core biopsy. Additional cores will be used for diagnosis, immunohistochemistry (IHC) of PR, Ki-67 and other markers. - At surgery samples will be frozen for molecular studies and fixed and processed for pathological evaluation. - Wilcoxon signed rank test will be used to evaluate differences in biomarker expression between core biopsy and surgical samples of each patient. - Blood will be collected before treatment initiation and prior to final surgery. - Mammographic and echographic studies will be carried out before and after treatment. |
| >Trial ID | >Title | >Status | >Sponsor | >Phase | >Summary |
Clinical Trial Conditions for Onapristone
Condition Name
Clinical Trial Locations for Onapristone
Trials by Country
Clinical Trial Progress for Onapristone
Clinical Trial Phase
Clinical Trial Sponsors for Onapristone
Sponsor Name
