Study of ONC206 (JZP3507) in Advanced Pheochromocytoma and Paraganglioma

Official title

A Phase 2 Study of ONC206 in Advanced Pheochromocytoma and Paraganglioma

Overview

This is a two-stage Phase 2 trial evaluating the efficacy and safety of ONC206 in participants with Pheochromocytoma and Paraganglioma (PCPG).

Detailed description

Two-Stage Study to evaluate ONC206 as monotherapy doses:

Stage 1: Participants will receive 150mg ONC206 twice daily, on three consecutive days per week (BID TIW) in each 28-day cycle.

* Part A: Initial number of participants will be monitored. * Part B: If a set number of participants have a response, then more participants will be enrolled and treated.

Stage 2: If Stage 1 meets the planned response, the study will proceed, and participants will be randomized 1:1 to receive 1 of 2 ONC206 dose levels.

Interventions

• Drug ONC206
  150 mg BID TIW
• Drug ONC206: Dose 1
• Drug ONC206: Dose 2

Primary outcome measures

• Overall Response Rate (ORR) by Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 [Time frame: Up to 36 months.]

Secondary outcome measures (12)

• Duration of Response (DOR) [Time frame: Up to 36 months.]
• Time to Response (TTR) [Time frame: Up to 36 months.]
• Disease Control Rate (DCR) [Time frame: Up to 36 months.]
• Progression Free Survival (PFS) by RECIST v1.1 [Time frame: Up to 36 months.]
• Overall Survival (OS) [Time frame: Up to 36 months.]
• Change from Baseline in Antihypertensive Medication Dose [Time frame: Up to 36 months.]
• Change from Baseline in Biochemical Response (Metanephrines/Disease Markers) [Time frame: Up to 36 months.]
• Incidence of Adverse Events (AEs) [Time frame: Up to 36 months.]
• Number of Participants with Clinically Significant Changes from Baseline in Clinical Laboratory Parameters [Time frame: Up to 36 months.]
• Number of Participants with Grade 4+ Clinical Laboratory Parameters [Time frame: Up to 36 months.]
• Number of Participants with Clinically Significant Changes from Baseline in Electrocardiogram (ECG) Parameters [Time frame: Up to 36 months.]
• Maximum Observed Concentration of ONC206 [Time frame: Up to 36 months.]

Eligibility criteria

Inclusion criteria

• Has histologically confirmed pheochromocytoma or paraganglioma that is unresectable as determined by the Investigator.
• Has failed, is not a candidate for, or has declined standard of care treatment for PCPG. There is no limit on the number of prior systemic therapies.
• Must have measurable disease per RECIST v1.1, as assessed by the Investigator.
• Has adequately controlled blood pressure defined as blood pressure ≤150/90 mmHg and with no change in antihypertensive medications (for participants with concomitant hypertension) for at least 14 days before the first dose of study treatment.
• Is ≥18 years of age.
• Is able to swallow oral tablets.
• Has an Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 to 2, assessed within 7 days before the first dose of study treatment.
• Has laboratory test results meeting the following parameters within 14 days before the first dose of study treatment
• Has an expected survival of at least 12 weeks, as predicted by the physician.
• Has pharmacologic control of catecholamine-associated symptoms if participant has functional disease.

Exclusion criteria

• Has known hypersensitivity to ONC206 or any excipient used in the ONC206 study treatment formulation.
• Has active cardiac disease/condition including any of the following:

• Corrected QT interval (QTc) >480 msec (based on the mean from triplicate electrocardiogram \[ECGs\] performed during Screening).
• History of documented congestive heart failure (New York Heart Association function classification III-IV).
• Unstable angina, acute myocardial infarction, or arterial bypass or percutaneous transluminal coronary angioplasty within 6 months before the first dose of study treatment.
• Has previous exposure to ONC206 or dordaviprone (ONC201) from any source.
• Has a known additional malignancy that is progressing or has required active treatment within the past 2 years. Exceptions include participants with basal cell carcinoma of the skin, squamous cell carcinoma of the skin that has undergone potentially curative therapy or in situ cervical cancer, or Von Hippel-Lindau disease-associated tumors that do not require immediate surgery or intervention.
• Has received any of the following interventions within the specified time periods before the first dose of study treatment or plans to receive any of the following interventions during study participation:

• a. Any prior anticancer therapy or investigational agents within 4 weeks or 5 half-lives, whichever is shorter. Note: Denosumab and zoledronic acid are permissible.

\*\*i. Any treatment with somatostatin analog or lanreotide within 21 days before the baseline Positron Emission Tomography (PET) scan.

• b. Strong cytochrome P450 (CYP) inhibitors within 14 days. c. Strong CYP inducers within 14 days. d. Any radiotherapy within 14 days. e. Any major surgery, open biopsy or significant traumatic injury within 1 month (30 days).
• Is pregnant, breastfeeding, or planning to become pregnant while receiving study treatment or within 3 months after the last dose.
• Has uncontrolled intercurrent illness or any other medical, psychiatric, or social condition that, in the opinion of the Investigator, may interfere with participant safety or the ability to comply with study requirements.
• Has unresolved toxicities from previous locoregional, systemic, or any other therapies, defined as toxicities (other than Grade ≤2 neuropathy or alopecia) not yet resolved to the National Cancer Institute Common Terminology Criteria for Adverse Events Grade ≤1, or baseline and considered clinically significant; consult with Medical Monitor.
• Has an active infection that requires systemic therapy.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation

Randomized

Model

Sequential

Masking

Open label

Primary purpose

Treatment

Study locations

United States · 9 centers

• UCLA — Los Angeles
• Stanford — Palo Alto
• U of Colorado — Aurora
• U of Michigan — Ann Arbor
• Mayo-Rochester — Rochester
• Washington University — St Louis
• Columbia University Medical Center — New York
• PENN — Philadelphia
• … and 1 more center

Identifiers

NCT: NCT07282587 · ONC206-002

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗