Study of Safety and Pharmacokinetic Properties of Oral OKN-007 in Patients With Recurrent High-Grade Glioma

• ClinicalTrials.gov Identifier: NCT05561374
• Recruitment Status: Recruiting
• First Posted: September 30, 2022
• Last Update Posted: February 16, 2024
• Sponsor: Oblato, Inc.
• Information provided by (Responsible Party): Oblato, Inc.

Study Description

Brief Summary:

This is a phase 1 open-label, multicenter study to investigate tolerability, safety and PK properties of oral OKN-007 in patients with recurrent high-grade glioma.

Condition or disease	Intervention/treatment	Phase
High-grade Glioma; Oligodendroglioma; Astrocytoma; Glioblastoma Multiforme	Drug: Low-dose OKN-007, BID; Drug: Low-dose OKN-007, TID; Drug: Mid-dose OKN-007, TID; Drug: High-dose OKN-007, TID	Phase 1

Detailed Description:

This phase 1 open-label study is based on the traditional 3+3 design following the initial single-participant cohort to determine the maximum tolerated dose (MTD). Eligible participants will be enrolled each of the cohorts with escalated dose levels and administered the study drug OKN-007 orally daily in 28-day cycles: Cohort 1, Cohort 2, Cohort 3, Cohort 4. Participants may receive study treatment up to 2 years or until tumor progression, unacceptable toxicity, death, or patient withdrawal. The safety and pharmacokinetic properties of oral OKN-007 will be investigated.

Study Design

• Study Type: Interventional (Clinical Trial)
• Estimated Enrollment: 16 participants
• Allocation: Non-Randomized
• Intervention Model: Sequential Assignment
• Masking: None (Open Label)
• Primary Purpose: Treatment
• Official Title: A Phase 1b Open-Label Study Investigating the Tolerability, Safety, and Pharmacokinetic Properties of Oral OKN-007 in Patients With Recurrent High-Grade Glioma
• Actual Study Start Date: April 17, 2023
• Estimated Primary Completion Date: May 15, 2024
• Estimated Study Completion Date: August 15, 2024

Arms and Interventions

Arm	Intervention/treatment
Experimental: Low-dose OKN-007, two times a day (BID); Dose Escalation Cohort 1	Drug: Low-dose OKN-007, BID; Participants will be administered low doses of oral OKN-007 two times a day daily in 28-day cycles.
Experimental: Low-dose OKN-007, three times a day (TID); Dose Escalation Cohort 2	Drug: Low-dose OKN-007, TID; Participants will be administered low doses of oral OKN-007 three times a day daily in 28-day cycles.
Experimental: Mid-dose OKN-007, three times a day (TID); Dose Escalation Cohort 3	Drug: Mid-dose OKN-007, TID; Participants will be administered mid doses of oral OKN-007 three times a day daily in 28-day cycles.
Experimental: High-dose OKN-007, three times a day (TID); Dose Escalation Cohort 4	Drug: High-dose OKN-007, TID; Participants will be administered high doses of oral OKN-007 three times a day daily in 28-day cycles.

Outcome Measures

Primary Outcome Measures :

1. Safety and tolerability: Eastern Cooperative Oncology Group (ECOG) performance status assessment [ Time Frame: From Day 1 to 30 days after the last treatment ]
   A physical functional status of participant will be evaluated based on Eastern Cooperative Oncology Group (ECOG) with 6 point performance status scale, where 0= fully active and 5 = dead.
2. Safety and tolerability: Neurologic Assessment in Neuro-Oncology (NANO) assessment [ Time Frame: From Day 1 to 30 days after the last treatment ]
   A neurological functional status of participant will be evaluated based on NANO criteria.
3. Safety and tolerability: Adverse events [ Time Frame: From Day 1 to 30 days after the last treatment ]
   Safety and tolerability will be evaluated from adverse events as reported according to CTCAE version 5.0.
4. Pharmacokinetic profile: Maximum plasma concentration (Cmax) [ Time Frame: Pre-dose, 2 hours, 4 hours, 5 hours, 6 hours, and 8 hours post-dose on Days 1 in Cycle 1 and 2; 5 hours post-dose on Day 5; Pre-dose, 5 hours post-dose on Day 8 in Cycle 1; Pre-dose on Days 1 of Cycle 3 and 4 (each cycle is 28 days) ]
   Maximum plasma concentration (Cmax) will be calculated using the actual sample collection times.
5. Pharmacokinetic profile: Time to Cmax (Tmax) [ Time Frame: Pre-dose, 2 hours, 4 hours, 5 hours, 6 hours, and 8 hours post-dose on Days 1 in Cycle 1 and 2; 5 hours post-dose on Day 5; Pre-dose, 5 hours post-dose on Day 8 in Cycle 1; Pre-dose on Days 1 of Cycle 3 and 4 (each cycle is 28 days) ]
   Time to Cmax (Tmax) will be calculated using the actual sample collection times.
6. Pharmacokinetic profile: Area under the curve (AUC) [ Time Frame: Pre-dose, 2 hours, 4 hours, 5 hours, 6 hours, and 8 hours post-dose on Days 1 in Cycle 1 and 2; 5 hours post-dose on Day 5; Pre-dose, 5 hours post-dose on Day 8 in Cycle 1; Pre-dose on Days 1 of Cycle 3 and 4 (each cycle is 28 days) ]
   Area under the curve (AUC) will be calculated using the actual sample collection times.
7. Pharmacokinetic profile: Half-life time (t1/2) [ Time Frame: Pre-dose, 2 hours, 4 hours, 5 hours, 6 hours, and 8 hours post-dose on Days 1 in Cycle 1 and 2; 5 hours post-dose on Day 5; Pre-dose, 5 hours post-dose on Day 8 in Cycle 1; Pre-dose on Days 1 of Cycle 3 and 4 (each cycle is 28 days) ]
   Half-life time (t1/2) will be calculated using the actual sample collection times.

Eligibility Criteria

• Ages Eligible for Study: 18 Years and older (Adult, Older Adult)
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: No

Criteria

Inclusion Criteria:

1. Confirmed recurrent gliomas that were originally diagnosed as high-grade glioma (World Health Organization [WHO] Grade 3 or 4; astrocytoma, oligodendroglioma, or glioblastoma) by histopathology or molecular studies.
2. Progressive or recurrent gliomas documented by magnetic resonance imaging (MRI) no earlier than 180 days after first surgery for gliomas and no earlier than 90 days after completion of radiotherapy (applies to patients with first progression/recurrence only).
3. Patients must have medical records available documenting known histology or molecular and genetic information resulting from prior analyses, or tumor tissue samples available from prior glioma surgery or open biopsy for correlative research.
4. For patients with unresected recurrent tumor, unequivocal radiographic evidence of tumor progression by MRI as per the RANO criteria within 28 days prior to the first dose. These patients must have at least one measurable lesion per RANO.
5. No more than two prior lines of therapy for high-grade glioma (WHO Grade 3 or 4). The first-line therapy must include radiotherapy (minimum of 50 Gy; 34 Gy in elderly patients) with concomitant or adjuvant standard chemotherapy (temozolomide (TMZ), or procarbazine, lomustine and vincristine in patients with anaplastic oligodendroglioma).
6. Eastern Cooperative Oncology Group (ECOG) performance status <2.
7. Full recovery (grade ≤1) from the toxic effects of any earlier intervention and a minimum of 28 days from the last administration of any investigational agent that has not received regulatory approval for any indication at the time of registration.

8. Adequate renal, liver and bone marrow function without packed red blood cell/platelet transfusions within 4 weeks of the date of lab test during screening:

   • Leukocytes ≥3.0 × 10^9/L
   • Absolute neutrophil count (ANC) ≥1.5 × 10^9/L
   • Platelets ≥100 × 10^9/L
   • Hemoglobin ≥ 9.0 g/dL
   • Total bilirubin ≤1.5 × upper limit of normal (ULN), unless documented Gilbert's syndrome.
   • Aspartate transaminase/alanine transaminase ≤2.5 × ULN
   • Creatinine clearance ≥60 mL/min calculated as per Cockcroft-Gault equation.
9. Patients must be ≥18 years of age.
10. Life expectancy (as assessed by the Investigator) at least three months.
11. Patients must not have significantly diseased or obstructed gastrointestinal tract, malabsorption, uncontrolled vomiting or diarrhea, or inability to swallow oral medications.
12. Have provided written informed consent.
13. Patients must be willing to have multiple blood draws for PK analysis.
14. Female patients, of childbearing potential, must have a negative serum pregnancy test within 7 days prior to study treatment initiation and agree to use adequate contraception or practice sexual abstinence as the preferred and usual lifestyle of the patient during the study and for up to 120 days (4 months) after the last dose of study treatment.
15. Male patients with female partners of childbearing potential must, even if surgically sterilized, agree to practice effective barrier contraception and practice true abstinence.
16. Human immunodeficiency virus infected patients on effective antiretroviral therapy with undetectable viral load within 6 months prior to study registration are eligible for this trial.

Exclusion Criteria:

1. Prior malignancy (other than glioma) expected to require treatment within a 6-month period (except adequately treated basal cell carcinoma of the skin). Patients who had another malignancy in the past but have been free of active disease for more than 2 years, are eligible.
2. Have received treatment within the last 28 days with a drug that has not received regulatory approval for any indication at the time of study registration.
3. Have received chemotherapeutic agents (including TMZ) within 28 days or within 5 half-lives for non-cytotoxic agents (whichever is shorter) of study registration.
4. Serious concomitant systemic disorders, for example, abnormal electrocardiogram (ECG) indicative of cardiac disease (patients with Fridericia-corrected QT interval [QTcF] >480 msec.
5. Patients with abnormal sodium, potassium, or creatinine levels grade ≥2.
6. Inability to comply with protocol or study procedures.
7. Women who are pregnant or breastfeeding.
8. Patients who have received bevacizumab for recurrent glioblastoma or are planning to initiate treatment with bevacizumab for tumor necrosis.
9. Patients completing radiotherapy treatment less than 2 weeks prior to planned study treatment initiation.

Contacts and Locations

Contacts

Contact: Shinwook Kang; 609-734-4329; swkang@oblatoinc.com

Locations

United States, California

Providence Saint John's Cancer Institute; Recruiting

Santa Monica, California, United States, 90404

Contact neuro.research@providence.org

Principal Investigator: Naveed Wagle, M.D.

Sub-Investigator: Santosh Kesari, M.D.

United States, Kentucky

Norton Healthcare; Recruiting

Louisville, Kentucky, United States, 40202

Contact: Pamela Adkisson Pamela.Adkisson@nortonhealthcare.org

Principal Investigator: Jaspreet Grewal, M.D.

Sub-Investigator: John T. Hamm, M.D.

Sub-Investigator: Kaylyn Sinicrope, M.D.

United States, North Carolina

Atrium Health Wake Forest Baptist Comprehensive Cancer Center; Recruiting

Winston-Salem, North Carolina, United States, 27157

Contact: Glenn Lesser, MD 336-713-5441

Principal Investigator: Glenn Lesser, MD

Sub-Investigator: Roy Strowd III, MD

United States, Oklahoma

The University of Oklahoma Health Sciences Center, Stephenson Cancer Center; Recruiting

Oklahoma City, Oklahoma, United States, 73104

Contact: Zachary Chandler Zachary-Chandler@ouhsc.edu

Principal Investigator: James Douglas Battiste, M.D.

Sponsors and Collaborators

Oblato, Inc.

More Information

• Responsible Party: Oblato, Inc.
• ClinicalTrials.gov Identifier: NCT05561374
• Other Study ID Numbers: OKN-007-OL-RMG-101
• First Posted: September 30, 2022
• Last Update Posted: February 16, 2024
• Last Verified: July 2023

Individual Participant Data (IPD) Sharing Statement:

• Plan to Share IPD: No

• Studies a U.S. FDA-regulated Drug Product: Yes
• Studies a U.S. FDA-regulated Device Product: No

Additional relevant MeSH terms:

Glioblastoma; Glioma; Astrocytoma; Oligodendroglioma; Neoplasms, Neuroepithelial; Neuroectodermal Tumors; Neoplasms, Germ Cell and Embryonal; Neoplasms by Histologic Type; Neoplasms; Neoplasms, Glandular and Epithelial; Neoplasms, Nerve Tissue