Ultrasound-based Blood-brain Barrier Opening and Albumin-bound Paclitaxel for Recurrent Glioblastoma (SC9/ABX)

  • STATUS
    Recruiting
  • End date
    Sep 14, 2025
  • participants needed
    57
  • sponsor
    Northwestern University
Updated on 14 June 2022
corticosteroids
karnofsky performance status
dexamethasone
glioblastoma multiforme
recurrent glioblastoma
contrast-enhanced magnetic resonance imaging
recurrent tumor

Summary

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 the phase 1 component, increasing doses of chemotherapy will be delivered as long deemed safe based on the prior patient not experiencing severe toxicity. Once the the recommended dosing has been established, carboplatin will be added to the regimen and 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 and when feasible, 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 may occur immediately after the test dose of chemotherapy is administered.

The objectives of this trial are to establish a safe and effective dose of albumin-bound paclitaxel, 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.

Description

Eligible patients will undergo craniotomy for tumor resection. During the tumor resection and when possible, an initial low dose of albumin-bound paclitaxel will be given following sonication. In select patients, the sonication procedure may occur immediately after the test dose of chemotherapy is administered. The sonication device will be implanted at the end of the procedure. In phase 1, about two weeks after surgery, patients will undergo sonication and albumin-bound paclitaxel administration with MRI to quantify extent of blood brain barrier opening. Sonication and administration of albumin-bound paclitaxel will continue every 3 weeks until disease progression. The planned albumin-bound paclitaxel starting dose is 40 mg/m2, to be escalated in the absence of significant toxicity up to 260 mg/m2. Blood samples for circulating tumor DNA will also be collected before and after each sonication. In phase 2, pre-sonication carboplatin at AUC 5 will be added to the regimen, with a safety run-in for the first 6 patients.

Details
Condition Glioblastoma, Gliosarcoma, GBM, Glioblastoma Multiforme, Glioblastoma, IDH-wildtype, Recurrent Glioblastoma
Treatment Sonication for opening of blood-brain barrier, Chemotherapy, albumin-bound paclitaxel, Chemotherapy, carboplatin
Clinical Study IdentifierNCT04528680
SponsorNorthwestern University
Last Modified on14 June 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Confirmed diagnosis of Isocitrate Dehydrogenase 1 (IDH1) wild-type glioblastoma on pathology from initial surgery (e.g. IDH R132H neg); morphologic or molecular determination of grade 4
Ability to undergo contrast-enhanced MRI
Radiographic evidence of tumor recurrence/progression after failure of 1 - 2 lines of prior therapy
Measurable or evaluable disease
Measurable: contrast-enhancement (bidirectional diameters ≥ 1cm) on MRI
Non-measurable/evaluable: contrast-enhancement diameters < 1 cm
Maximal tumor diameter pre-surgery ≤ 70 mm on T1wMRI
Candidate for at least partial surgical resection
Greater 12 weeks from completion of radiation therapy
Age ≥ 18 years
If receiving dexamethasone for mass effect, a stable daily dose of dexamethasone at < 6 mg within 7 days of registration, or if dexamethasone dose is decreasing, average daily dose of < 6 mg in the 7 days prior to registration. Patients on dexamethasone for reasons other than mass effect may still be enrolled
WHO performance status ≤ 2 (equivalent to Karnofsky Performance Status (KPS) of ≥70)
Adequate hepatic, renal and bone marrow function, documented with normal laboratory values or no more than grade 1 outside the norm performed within 14 days prior to registration
For patients with a childbearing potential
Negative pregnancy test within 14 days prior to registration
Agreement to use adequate contraception for the duration of study participation, and for 3 and 6 months after the last dose of albumin-bound paclitaxel for men and women of childbearing potential, respectively
Have the ability to understand and the willingness to sign a written informed consent
Be willing and able to comply with the protocol for the duration of the study
prior to registration on study
Provide written, signed and dated informed consent prior to study registration. NOTE: no study-specific screening procedures may be performed until written consent has been obtained

Exclusion Criteria

Have multifocal disease that cannot be encompassed in the ultrasound fields
e.g. > 70-mm apart
tumor located in the posterior fossa
Patients at risk of cranial wound dehiscence
Have uncontrolled epilepsy or require treatment with enzyme-inducing antiepileptics
Have clinical evidence of peripheral neuropathy on examination
Have received any other investigational agents within 4 weeks of registration
Have received prior therapy with or have history of allergic reactions attributed to compounds of similar chemical or biologic composition to paclitaxel or carboplatin
Have an uncontrolled intercurrent illness
Medical contraindications to Abraxane® or carboplatin
Are pregnant or nursing
Have a history of active malignancy within 3 years prior to registration
Patients with coils, clips, shunts, intravascular stents, and/or non-removable wafer, non resorbable dura substitute, or reservoirs
Have a known history of hypersensitivity reactions to perflutren lipid microsphere components or to any of the inactive ingredients in Definity® (the FDA-approved ultrasound contrast agent to be used in this study)
Patients with medical need to continue antiplatelet therapy
Patients with known significant cardiac disease, known to have right-to-left shunts, severe pulmonary hypertension (pulmonary artery pressure > 90 mmHg), uncontrolled systemic hypertension, or adult respiratory distress syndrome (patient at risk for microbubble reaction)
Patients with impaired thermo-regulation or temperature sensation (due to device)
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