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Maximum Tolerated Dose, Safety, and Efficacy of Rhenium Nanoliposomes in Recurrent Glioma (ReSPECT)

P

Plus Therapeutics

Status and phase

Enrolling
Phase 2
Phase 1

Conditions

Glioma

Treatments

Drug: Rhenium Liposome Treatment

Study type

Interventional

Funder types

Industry
NIH

Identifiers

NCT01906385
20141749 (Other Identifier)
14-450X (Other Identifier)
1R01CA235800-01A1 (U.S. NIH Grant/Contract)
CTRC 12-02

Details and patient eligibility

About

This is a multi-center, sequential cohort, open-label, volume and dose escalation study of the safety, tolerability, and distribution of 186RNL given by convection enhanced delivery to patients with recurrent or progressive malignant glioma after standard surgical, radiation, and/or chemotherapy treatment. The study uses a modified Fibonacci dose escalation, followed by an expansion at the maximum tolerated dose (MTD) to determine efficacy. The starting absorbed dose is 1mCi in a volume of 0.660mL.

Full description

The Phase I portion of the clinical study evaluates a single dose of 186RNL (radionuclide clinical study drug) administered through a convection enhanced delivery catheter (CED catheter) in participants with recurrent Glioma (GBM). The clinical study treatment consists of a single administered dose of 186RNL per participant. The clinical study will include the evaluation of multiple separate dose levels (dose escalation). Three to six participants may be treated at each dose. The maximum number of participants to be enrolled in the study is approximately 21. The clinical study treatment will be administered, following CED placement, by the clinical study physician. Participants will be followed for up to 36 months after the clinical study drug is administered.

The Phase II portion of the clinical study is a multicenter, single arm, prospective study utilizing a non-DLT dose obtained from the dose escalation portion of IND 116117, NIH-NCI Grant (22.3 mCi (total 186RNL activity) at a concentration of 2.5 mCi/mL and 8.8 mL total volume). The maximum number of participants to be enrolled in the Phase II study is approximately 34. The clinical study treatment will be administered, following CED placement, by the clinical study physician. Participants will be followed for up to 36 months after the clinical study drug is administered.

The U.S. Food and Drug Administration (FDA) has not approved 186RNL for this specific disease.

Enrollment

55 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  1. At least 18 years of age.

  2. Ability to understand the purposes and risks of the study and has signed a written informed consent form approved by the investigator's IRB/Ethics Committee.

  3. Histologically confirmed Grade III/IV recurrent Glioma (following 2021 WHO CNS5 glioma nomenclature, e.g., Astrocytoma, IDH-mutant grade 3 or 4; Glioblastoma, IDH-wildtype grade 4).

  4. Progression by RANO criteria or other clinically accepted neurooncology evaluation, following standard treatment options with known survival benefit for any recurrence (e.g., surgery, temozolomide, radiation, and tumor treating fields). Patient may be included in study if medically unable or unwilling to follow standard treatment options for any recurrence.

  5. Patients who receive treatment with antiepileptic medications must have a two-week history of stable dose of antiepileptic without seizures prior to study start (dosing).

  6. Patients with corticosteroid requirements to control cerebral edema must be maintained at a stable or decreasing dose for a minimum of two weeks without progression of clinical symptoms prior to study start (dosing).

  7. Patients with Grade III/IV Glioma (following 2021 WHO CNS5 glioma nomenclature, e.g., Astrocytoma, IDH-mutant grade 3 or 4; Glioblastoma, IDH-wildtype grade 4) which falls within the treatment field volume.

  8. ECOG performance status of 0 to 2; Karnofsky Performance Status ≥ 60.

  9. Life expectancy of at least 2 months.

  10. Acceptable liver function:

    1. Bilirubin ≤ 1.5 times upper limit of normal
    2. AST (SGOT) and ALT (SGPT) ≤ 3.0 times upper limit of normal (ULN)
  11. Acceptable renal function:

    a. Serum creatinine ≤1.5xULN

  12. Acceptable hematologic status (without hematologic support):

    1. ANC ≥1000 cells/uL
    2. Platelet count ≥100,000/uL
    3. Hemoglobin ≥9.0 g/dL
  13. All women of childbearing potential must have a negative serum pregnancy test and male and female subjects must agree to use effective means of contraception (for example, surgical sterilization or the use of barrier contraception with either a condom or diaphragm in conjunction with spermicidal gel or an IUD) with their partner from entry into the study through 6 months after the last dose.

Exclusion criteria

  1. The subject has evidence of acute intracranial or intratumoral hemorrhage either by magnetic resonance imaging (MRI) or computerized tomography (CT) scan. Subjects with resolving hemorrhage changes, punctate hemorrhage, or hemosiderin are eligible.

  2. The subject is unable or contraindicated to undergo MRI scan (e.g., has pacemaker or medically unstable).

  3. The subject has not recovered to CTCAE v4.0 Grade ≤1 from AEs (except alopecia, anemia, and lymphopenia) due to antineoplastic agents, investigational drugs, or other medications that were administered prior to study.

  4. The subject is pregnant or breast-feeding.

  5. The subject has serious intercurrent illness, as determined by the treating physician, which would compromise either patient safety or study outcomes such as:

    • hypertension (two or more blood pressure readings performed at screening of >150 mmHg systolic or >100 mmHg diastolic) despite optimal treatment
    • active medically significant infection unresponsive to antibiotics (e.g., non- healing wound, ulcer), uncontrolled systemic infection, or bone fracture
    • clinically significant cardiac arrhythmias not controlled by appropriate medications
    • untreated hypothyroidism
    • symptomatic congestive heart failure or unstable angina pectoris within 3 months prior to study drug
    • myocardial infarction, stroke, or transient ischemic attack within 6 months prior to study drug
    • known active malignancy (other than glioma) except non-melanoma skin cancer or carcinoma in-situ in the cervix unless PI determines it would not impact patient safety or efficacy determinations
  6. The subject has inherited bleeding diathesis or coagulopathy with the risk of bleeding.

  7. The subject has received any of the following prior anticancer therapy:

    • Prior treatment with Bevacizumab
    • Non-standard radiation therapy such as brachytherapy, systemic radioisotope therapy, or intra-operative radiotherapy (IORT) to the target site
    • Radiation therapy within 12 weeks of screening
    • Systemic therapy (including investigational agents and small-molecule kinase inhibitors) or non-cytotoxic hormonal therapy (e.g., tamoxifen) within 14 days or 5 half-lives, whichever is shorter, prior to study start (dosing)
    • Biologic agents (antibodies, immune modulators, vaccines, cytokines) within 21 days prior to study start (dosing)
    • Nitrosoureas or mitomycin C within 42 days, or metronomic/protracted low- dose chemotherapy within 14 days, or other cytotoxic chemotherapy within 28 days, prior to study start (dosing)
    • Prior treatment with carmustine wafers
    • Patients who are currently receiving any other investigational agents and/or who have received an investigational agent in 28 days prior to study start (dosing)
  8. Multifocal progression or involvement of the leptomeninges.

  9. Psychiatric illness/social situations that would limit compliance with the study requirements

  10. Infratentorial disease

  11. The subject has a tumor located within 1-2 cm of a ventricle AND it is determined by the surgeon, PI, and sponsor to be a risk for drug extravasation to the subarachnoid space if given catheter placement and drug administration.

  12. Phase 2 only: The subject should have a tumor volume of ≤20 cm3 to be included in the Phase 2 portion of the study. Subjects with tumor volumes of greater than 20 cm3 are excluded from the Phase 2 portion of the study.

Trial design

Primary purpose

Treatment

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

55 participants in 1 patient group

186Rhenium Liposome Treatment
Experimental group
Description:
Arm Phase I: Experimental: Dose Escalation for Cohorts 1-8 Each participant will receive a single administration of 186RNL. At each dose level, a minimum of three to a maximum of six participants will be enrolled. If no dose limiting toxicity is observed in the initial three participants, then the next higher dose level cohort will open for enrollment. The dose escalation scheme will follow a modified Fibonacci dose escalation scheme as shown below: COHORT ACTIVITY Cohort 1 (1.0 mCi) Cohort 2 (2.0 mCi) Cohort 3 (4.0 mCi) Cohort 4 (8.0 mCi) Cohort 5 (13.4 mCi) Cohort 6 (22.3 mCi) Cohort 7 (31.2 mCi) Cohort 8 (41.5 mCi) Phase 2: Single arm, prospective study utilizing a non-DLT dose obtained from the dose escalation portion of IND 116117, NIH-NCI Grant (22.3 mCi (total 186RNL activity) at a concentration of 2.5 mCi/mL and 8.8 mL total volume).
Treatment:
Drug: Rhenium Liposome Treatment

Trial contacts and locations

3

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Central trial contact

Andrew Brenner, PhD; Brandallyn Tihinen, RN

Data sourced from clinicaltrials.gov

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