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

A Phase 1b Open-Label Study Investigating the Tolerability, Safety, and Pharmacokinetic Properties of Oral OKN-007 in Patients With Recurrent High-Grade Glioma

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.

Study Overview

• Status: Recruiting
• Conditions: Astrocytoma; Glioblastoma Multiforme; Oligodendroglioma; High-grade Glioma
• Intervention / Treatment: Drug: Low-dose OKN-007, BID; Drug: Low-dose OKN-007, TID; Drug: Mid-dose OKN-007, TID; Drug: High-dose OKN-007, TID

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 Type: Interventional
• Enrollment (Estimated): 16
• Phase: Phase 1

Contacts and Locations

• Study Contact: Name: Shinwook Kang; Phone Number: 609-734-4329; Email: swkang@oblatoinc.com

Study Locations

• United States
  • California
    • Santa Monica, California, United States, 90404
      • Recruiting
      • Providence Saint John's Cancer Institute
      • Principal Investigator: Naveed Wagle, M.D.
      • Sub-Investigator: Santosh Kesari, M.D.
      • Contact: Email: neuro.research@providence.org
  • Kentucky
    • Louisville, Kentucky, United States, 40202
      • Recruiting
      • Norton Healthcare
      • Principal Investigator: Jaspreet Grewal, M.D.
      • Sub-Investigator: John T. Hamm, M.D.
      • Sub-Investigator: Kaylyn Sinicrope, M.D.
      • Contact: Pamela Adkisson; Email: Pamela.Adkisson@nortonhealthcare.org
  • North Carolina
    • Winston-Salem, North Carolina, United States, 27157
      • Recruiting
      • Atrium Health Wake Forest Baptist Comprehensive Cancer Center
      • Principal Investigator: Glenn Lesser, MD
      • Contact: Glenn Lesser, MD; Phone Number: 336-713-5441
      • Sub-Investigator: Roy Strowd III, MD
  • Oklahoma
    • Oklahoma City, Oklahoma, United States, 73104
      • Recruiting
      • The University of Oklahoma Health Sciences Center, Stephenson Cancer Center
      • Contact: Zachary Chandler; Email: Zachary-Chandler@ouhsc.edu
      • Principal Investigator: James Douglas Battiste, M.D.

Participation Criteria

Eligibility Criteria

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

Description

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.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Sequential Assignment
• Masking: None (Open Label)

Number of Arms

4

Arms and Interventions

Participant Group / 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.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Safety and tolerability: Eastern Cooperative Oncology Group (ECOG) performance status assessment	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.	From Day 1 to 30 days after the last treatment
Safety and tolerability: Neurologic Assessment in Neuro-Oncology (NANO) assessment	A neurological functional status of participant will be evaluated based on NANO criteria.	From Day 1 to 30 days after the last treatment
Safety and tolerability: Adverse events	Safety and tolerability will be evaluated from adverse events as reported according to CTCAE version 5.0.	From Day 1 to 30 days after the last treatment
Pharmacokinetic profile: Maximum plasma concentration (Cmax)	Maximum plasma concentration (Cmax) will be calculated using the actual sample collection times.	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)
Pharmacokinetic profile: Time to Cmax (Tmax)	Time to Cmax (Tmax) will be calculated using the actual sample collection times.	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)
Pharmacokinetic profile: Area under the curve (AUC)	Area under the curve (AUC) will be calculated using the actual sample collection times.	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)
Pharmacokinetic profile: Half-life time (t1/2)	Half-life time (t1/2) will be calculated using the actual sample collection times.	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)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Median Progression-Free Survival (PFS) assessed by Radiographic Assessment in Neuro-Oncology (RANO) criteria	Median PFS is defined as the period from the date of the first treatment dose until the earliest date of progression, or death from any cause, or the date of last contact.	Up to 24 months
Median Overall Survival (OS) by RANO criteria	Median OS is defined as the period from the date of the first treatment dose until the date of death due to any cause.	Up to 24 months

Collaborators and Investigators

• Sponsor: Oblato, Inc.

Study record dates

Study Major Dates

• Study Start (Actual): April 17, 2023
• Primary Completion (Estimated): May 15, 2024
• Study Completion (Estimated): August 15, 2024

Study Registration Dates

• First Submitted: September 22, 2022
• First Submitted That Met QC Criteria: September 26, 2022
• First Posted (Actual): September 30, 2022

Study Record Updates

• Last Update Posted (Actual): February 16, 2024
• Last Update Submitted That Met QC Criteria: February 15, 2024
• Last Verified: July 1, 2023

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Neoplasms by Histologic Type; Neoplasms; Neoplasms, Glandular and Epithelial; Neoplasms, Neuroepithelial; Neuroectodermal Tumors; Neoplasms, Germ Cell and Embryonal; Neoplasms, Nerve Tissue; Glioblastoma; Glioma; Astrocytoma; Oligodendroglioma
• Other Study ID Numbers: OKN-007-OL-RMG-101

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No