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Phase 1/2a Study of VK-2019 in Patients With Epstein-Barr Virus (EBV)-Positive Nasopharyngeal Carcinoma (NPC)

Phase 1/2a Open Label, Multicenter Clinical Trial of a Novel Small Molecule EBNA1 Inhibitor, VK 2019, in Patients With Epstein Barr Virus Positive Nasopharyngeal Cancer, With Pharmacokinetic and Pharmacodynamic Correlative Studies

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03682055
Enrollment
14
Registered
2018-09-24
Start date
2019-04-04
Completion date
2020-08-08
Last updated
2023-08-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Nasopharyngeal Cancer, Nasopharyngeal Carcinoma

Keywords

Epstein-Barr Virus, Nasopharyngeal Carcinoma, NPC, EBV, EBNA1 inhibitor, VK-2019, Nasopharynx cancer, Nasopharynx carcinoma

Brief summary

VK-2019-001 is a 1/2a trial of the oral EBNA-1 targeting agent VK-2019 in patients with EBV-positive recurrent or metastatic NPC to determine the Maximum Tolerated Dose (MTD) and Recommended Phase 2 Dose (RP2D), as well as to evaluate the PK profile of VK-2019.

Detailed description

This is a Phase 1/2a, open-label, multicenter, first-in-human trial to evaluate the safety and tolerability, PK, PD, and preliminary efficacy of VK-2019 in patients with EBV-positive NPC. This trial is divided into three parts: Phase 1 Dose Escalation, Phase 1 Dose Expansion, and Phase 2s Dose Expansion. The objectives of the dose escalation part are to determine the safety, tolerability, MTD, recommended Phase 2 dose (RP2D), and to evaluate the anti-tumor activity of orally administered VK-2019 monotherapy. Additional objectives are to determine the pharmacokinetic (PK) profile of VK-2019. VK-2019 will be dosed once daily (QD).

Interventions

EBNA1 inhibitor

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Cullinan Therapeutics Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Informed consent obtained prior to any protocol mandated assessment. 2. Age ≥ 18. 3. Either loco regionally recurrent or metastatic EBV positive nasopharyngeal carcinoma not amenable to curative treatment. EBV positivity is defined as high EBV viral load in plasma (\> 4000 genomes per µg plasma DNA) and/or biopsy tissue positive for EBV. 4. Prior palliative radiation must have been completed at least 2 weeks prior to study Cycle 1 Day 0. 5. Prior anti cancer systemic treatment must have been completed greater than 4 weeks prior to study Cycle 1 Day 0. 6. Toxicities related to prior anti-cancer therapy must have returned to Grade 1 or less. Peripheral neuropathy must be Grade 2 or less. Chronic but stable toxicities Grade \> 1 (e.g., dysphasia, G tube dependence, etc.) may be allowed after agreement between the Investigator and Sponsor. 7. For the dose expansion phase only: Patients must have RECIST v1.1 measurable disease, defined as at least one lesion that can be accurately measured in at least one dimension (longest diameter to be recorded for non nodal lesions and short axis for nodal lesions) as ≥ 10 mM with spiral CT scan, MRI, or calipers by clinical exam. 8. ECOG performance status score of ≤ 2 at study entry. 9. Absolute neutrophil count \> 1500/µL (stable off any growth factor within 1 week of study drug administration). 10. Hemoglobin \> 9g/dL (transfusion to achieve this level is permitted). 11. Platelet count \> 75 x 103/ µL (transfusion to achieve this level is NOT permitted). 12. Serum aspartate transaminase (AST) and serum alanine transaminase (ALT) ≤ 2.5 x upper limit of normal (ULN). 13. Total serum bilirubin ≤ 1.5 x ULN. 14. Serum creatinine ≤ 1.5 x ULN or creatinine clearance ≥ 50 mL/min as calculated per Cockcroft Gault equation. 15. Urinary protein \< 2+ by dipstick. If dipstick ≥ 2+, then a 24 hour urine collection can be done and the patient may enter only if urinary protein is \< 1 g/24 hour. 16. Sexually active patients must agree to utilize birth control method during the study and for 18 weeks after the study is concluded, using effective birth control methods as defined in https://www.cdc.gov/reproductivehealth/unintendedpregnancy/pdf/contraceptive\_methods\_508.pdf. 17. Willingness and ability to comply with the study scheduled visits, treatment plans, laboratory tests and other procedures.

Exclusion criteria

1. Severe or active symptomatic cardiopulmonary diseases (unstable angina and/or congestive heart failure or peripheral vascular disease within the last 12 months; chronic obstructive pulmonary disease exacerbation other respiratory illness requiring hospitalization) or clinically significant psychiatric disorders; patients with effectively treated conditions (eg, stenting for CAD) are eligible. 2. Metastatic disease with active central nervous system (CNS) involvement, defined as parenchymal brain involvement. Patients with cranial nerve or base of skull involvement without the above are eligible; Patients with CNS metastases stable 1 month following focal treatment with radiation are eligible. 3. Concurrent treatment with systemic cancer directed therapy including complementary, alternative, herbal or nutritional supplement based treatments whose purpose is for anti cancer effect. 4. Positive for human immunodeficiency virus (HIV) are not excluded from this study, but HIV positive patients must have: * A stable regimen of highly active anti retroviral therapy (HAART) * No requirement for concurrent antibiotics or antifungal agents for the prevention of opportunistic infections * A CD4 count above 250 cells/mcL and an undetectable HIV viral load on standard PCR based test 5. Serious uncontrolled medical disorder or active infection which would, in the opinion of the Investigator, impair the ability of the subject to receive protocol therapy or whose control may be jeopardized by the complications of this therapy. 6. Currently taking drugs that inhibit or induce OATP1B1 or OATP1B3 within 5 half lives of that agent. Examples are included in Appendix 2. 7. Have received a prior organ allograft or allogeneic bone marrow transplant. 8. Current non prescription drug or alcohol dependence. 9. For all female patients, pregnancy or breastfeeding. 10. All female patients with reproductive potential must have a negative pregnancy test (serum or urine) prior to enrollment. 11. Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or study drug administration, or may interfere with the interpretation of study results, or in the judgment of the investigator would make the patient inappropriate for entry into the study. 12. Corrected QT by Fridericia's formula (QTcF) of \> 470 ms.

Design outcomes

Primary

MeasureTime frame
All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.24 months

Secondary

MeasureTime frame
Phase 1 Dose Escalation and Dose Expansion Cohorts: ORR24 months

Countries

China, France, Hong Kong, Singapore, United States

Participant flow

Participants by arm

ArmCount
Cohort 1 (Phase 1 Accelerated Titration)
60 mg QD
1
Cohort 2 (Phase 1 Accelerated Titration)
120 mg QD
2
Cohort 3 (Phase 1 Accelerated Titration)
230 mg QD
1
Cohort 4 (Phase 1 Accelerated Titration)
460 mg QD
2
Cohort 5 (Phase 1 Accelerated Titration)
920 mg QD
1
Cohort 6 (Phase 1 Accelerated Titration)
1800 mg QD
7
Total14

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Overall StudyLack of Efficacy121213
Overall StudyTermination of Study by Sponsor000003
Overall StudyWithdrawal by Subject000001

Baseline characteristics

CharacteristicCohort 2 (Phase 1 Accelerated Titration)Cohort 3 (Phase 1 Accelerated Titration)Cohort 4 (Phase 1 Accelerated Titration)Cohort 1 (Phase 1 Accelerated Titration)Cohort 5 (Phase 1 Accelerated Titration)Cohort 6 (Phase 1 Accelerated Titration)Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
1 Participants0 Participants1 Participants0 Participants0 Participants0 Participants2 Participants
Age, Categorical
Between 18 and 65 years
1 Participants1 Participants1 Participants1 Participants1 Participants7 Participants12 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
2 Participants1 Participants1 Participants1 Participants1 Participants3 Participants9 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants3 Participants3 Participants
Race (NIH/OMB)
White
0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants1 Participants
Region of Enrollment
France
0 participants0 participants0 participants0 participants0 participants3 participants3 participants
Region of Enrollment
Hong Kong
0 participants0 participants0 participants0 participants1 participants2 participants3 participants
Region of Enrollment
United States
2 participants1 participants2 participants1 participants0 participants2 participants8 participants
Sex: Female, Male
Female
1 Participants0 Participants0 Participants1 Participants0 Participants1 Participants3 Participants
Sex: Female, Male
Male
1 Participants1 Participants2 Participants0 Participants1 Participants6 Participants11 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
0 / 11 / 20 / 10 / 20 / 10 / 7
other
Total, other adverse events
1 / 12 / 21 / 12 / 21 / 17 / 7
serious
Total, serious adverse events
0 / 12 / 20 / 10 / 21 / 13 / 7

Outcome results

Primary

All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.

Time frame: 24 months

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a DLT0 Participants
Cohort 1 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a treatment related AE leading to discontinuation0 Participants
Cohort 1 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a treatment-related AE leading to death0 Participants
Cohort 1 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced an AE1 Participants
Cohort 2 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a DLT0 Participants
Cohort 2 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a treatment-related AE leading to death0 Participants
Cohort 2 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a treatment related AE leading to discontinuation0 Participants
Cohort 2 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced an AE2 Participants
Cohort 3 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a treatment related AE leading to discontinuation0 Participants
Cohort 3 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a DLT0 Participants
Cohort 3 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced an AE1 Participants
Cohort 3 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a treatment-related AE leading to death0 Participants
Cohort 4 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a treatment-related AE leading to death0 Participants
Cohort 4 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a DLT0 Participants
Cohort 4 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a treatment related AE leading to discontinuation0 Participants
Cohort 4 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced an AE2 Participants
Cohort 5 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a treatment related AE leading to discontinuation0 Participants
Cohort 5 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a DLT0 Participants
Cohort 5 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a treatment-related AE leading to death0 Participants
Cohort 5 (Phase 1 Accelerated Titration)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced an AE1 Participants
Cohort 6 (Phase 1 Rolling 6)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a treatment related AE leading to discontinuation0 Participants
Cohort 6 (Phase 1 Rolling 6)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a DLT0 Participants
Cohort 6 (Phase 1 Rolling 6)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced an AE7 Participants
Cohort 6 (Phase 1 Rolling 6)All Cohorts: The Frequency, Severity, and Duration of AEs and DLTs, AEs Leading to Discontinuation, and AEs Leading to Death.Experienced a treatment-related AE leading to death0 Participants
Secondary

Phase 1 Dose Escalation and Dose Expansion Cohorts: ORR

Time frame: 24 months

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRMissing / Not Evaluable0 Participants
Cohort 1 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRComplete Response0 Participants
Cohort 1 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRProgressive Disease0 Participants
Cohort 1 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRPartial Response0 Participants
Cohort 1 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRStable Disease1 Participants
Cohort 2 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRPartial Response0 Participants
Cohort 2 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRComplete Response0 Participants
Cohort 2 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRMissing / Not Evaluable1 Participants
Cohort 2 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRProgressive Disease0 Participants
Cohort 2 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRStable Disease0 Participants
Cohort 3 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRPartial Response0 Participants
Cohort 3 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRMissing / Not Evaluable0 Participants
Cohort 3 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRComplete Response0 Participants
Cohort 3 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRStable Disease0 Participants
Cohort 3 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRProgressive Disease1 Participants
Cohort 4 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRPartial Response0 Participants
Cohort 4 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRStable Disease0 Participants
Cohort 4 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRProgressive Disease2 Participants
Cohort 4 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRComplete Response0 Participants
Cohort 4 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRMissing / Not Evaluable0 Participants
Cohort 5 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRComplete Response0 Participants
Cohort 5 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRStable Disease1 Participants
Cohort 5 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRMissing / Not Evaluable0 Participants
Cohort 5 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRProgressive Disease0 Participants
Cohort 5 (Phase 1 Accelerated Titration)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRPartial Response0 Participants
Cohort 6 (Phase 1 Rolling 6)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRStable Disease1 Participants
Cohort 6 (Phase 1 Rolling 6)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRComplete Response0 Participants
Cohort 6 (Phase 1 Rolling 6)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRProgressive Disease2 Participants
Cohort 6 (Phase 1 Rolling 6)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRMissing / Not Evaluable0 Participants
Cohort 6 (Phase 1 Rolling 6)Phase 1 Dose Escalation and Dose Expansion Cohorts: ORRPartial Response0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026