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54 active trials for Recurrent Glioblastoma

Improving Tumor Treating Fields Treatment for Brain Cancer Patients With Skullremodeling Surgery (Neurosurgery)

The aim of this trial is to test a new potential treatment, skullremodeling surgery (SR-surgery) combined with tumor treating fields (TTFields), for patients with first recurrence of malignant brain tumor (first recurrence of glioblastoma). Glioblastoma is one of the most malignant cancers. TTFields is a new treatment for brain cancer (glioblastoma), which is used in additional to surgery (removal of the tumor), chemotherapy and radiation. TTFields work by sending alternating current to the tumor. The current disrupts cell division and thus prevents cancer growths. Electrodes are placed on the scalp and the current is delivered via a small portable battery (1kg). Treatment duration is 18 hours during the day, where the patient can do normal daily activities. The average life expectancy of a newly diagnosed brain cancer patient (glioblastoma) is increased from 15 months to 21 months by adding TTFields. SR-surgery is a minor and safe procedure, that involves creating small burrholes in the skull over the tumor location. The burrholes are approximately 15 mm in diameter. The burrholes increase the electric current in the tumor by funneling the electricity trough the path of least resistance, since bone hinders the electricity. The theory is that combining TTFields with SR-surgery we can increase the effect of TTFields and in return increase overall survival for brain cancer patients. The investigators have recently finished a phase 1 clinical trial, with 15 trial participants, testing the safety and efficacy of our combined treatment. The investigators concluded that TTFields and SR-surgery combined is safe and showed promising results by increasing overall survival with the trial participants. Therefor we wish to proceed with a phase 2 trial. Method The investigators aim to include 70 patients with first recurrence of glioblastoma (brain cancer). Each patient will be randomized to one of two treatment arms. Both treatment arms will receive the best current brain tumor treatment. In addition, one arm receives TTF and the other arm TTFields and SR-surgery. All patients are expected to receive better treatment than current best practice, since TTFields is not standard treatment in Denmark. The primary aim of the trial is to assess the 12-month overall survival in both groups. The theory is that more trial participants will be alive after 12 months in the group that receives both TTF and SR-surgery. The trial duration is 36 months with an average expected follow-up of 18 months.

Start: October 2020
Ultrasound-based Blood-brain Barrier Opening and Albumin-bound Paclitaxel for Recurrent Glioblastoma

Paclitaxel is among the most active agents against glioblastoma in preclinical models. However, its clinical use has been hampered by the blood-brain barrier (BBB). In this trial we will implant a novel device with 9 ultrasound emitters allowing to temporarily and reversibly open the BBB immediately prior to chemotherapy infusion with albumin-bound paclitaxel. In this phase 1 trial increasing doses of chemotherapy will be delivered as long deemed safe and prior patient had not experienced severe toxicity. Once the the recommended dosing has been established, additional patients will be treated in order to better evaluate the antitumor efficacy of this novel treatment. The device will be implanted at the time of surgical resection of the recurrent tumor. During that procedure a first test dose of the chemotherapy will be administered in the operating room after sonication (procedure of activating ultrasound and opening the BBB) and tissue concentrations in different parts of the resected tumor will be measured. In select patients, the sonication procedure will occur immediately after the test dose of chemotherapy is administered. The objectives of this trial are to establish a safe and effective dose of ABX, to demonstrate that the opening of the BBB increases chemotherapy concentration in the tumor, and to estimate how effective this treatment is in reducing the tumor burden and prolonging life.

Start: October 2020