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Oral AHR Antagonist in Combination With Nivolumab in Patients With PD-1 Resistant Metastatic or Recurrent Head and Neck Cancer

Phase 1
Withdrawn
Conditions
Head Cancer Neck
Neck Cancer
Head and Neck Cancer
Neck Carcinoma
Head and Neck Squamous Cell Carcinoma
Head Cancer
Interventions
Registration Number
NCT05472506
Lead Sponsor
Ikena Oncology
Brief Summary

This is a phase 1b study in adult patients diagnosed with resistant or recurrent head and neck squamous cell carcinoma (HNSCC) designed to assess the safety and tolerability of IK-175 in combination with nivolumab. Disease response, pharmacokinetics (PK), pharmacodynamics, and response biomarkers will also be assessed.

Detailed Description

This is an open-label, multicenter, phase 1b dose-expansion study to evaluate the safety, tolerability, preliminary antitumor activity, PK, and pharmacodynamics of 2 dose levels of IK-175, administered PO in combination with nivolumab, in patients with primary PD-1-resistant metastatic or locally incurable, recurrent HNSCC for which standard therapy is no longer effective or is intolerable.

Recruitment & Eligibility

Status
WITHDRAWN
Sex
All
Target Recruitment
Not specified
Inclusion Criteria
  • Subject has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2.
  • Subject has a histologically confirmed metastatic or locally incurable, recurrent HNSCC that has progressed within 12 weeks of initiation of PD-1 inhibitor agent, whether it was administered alone or in combination with chemotherapy.
  • Tumors must express PD-L1 with a minimum CPS ≥ 1.
  • Subjects can be enrolled regardless of their tumor's expression of human papillomavirus (HPV).
  • Subjects are required to have received prior treatment with a platinum-based chemotherapy in the recurrent or metastatic disease setting, unless medically contraindicated.
  • Subject has at least 1 measurable lesion per RECIST v1.1.

Key

Exclusion Criteria
  • Subject has untreated or symptomatic central nervous system (CNS) tumors or brain metastases.
  • Subject must have recovered to ≤ Grade 1 from clinically significant AEs related to prior therapy (eg, myelosuppression or renal or hepatic dysfunction.)
  • Subject has received prior treatment with an AHR inhibitor.
  • Subject has a medical condition that limits oral administration or impairment of gastrointestinal function that is expected to significantly reduce the absorption of IK-175.
  • Uncontrolled or life-threatening symptomatic concomitant disease.
  • Clinically significant cardiovascular disease as defined in the protocol.
  • Subject is on a medication that is a sensitive substrate of CYP2C8, 2C9, 2C19, or 3A4 that cannot be substituted.
  • Females who are pregnant or breastfeeding.

Other inclusion/exclusion criteria are listed in the protocol.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Cohort 1IK-175 + nivolumab600 mg qd PO IK-175 + nivolumab
Cohort 2IK-175 + nivolumab450 mg q12h PO IK-175 + nivolumab
Primary Outcome Measures
NameTimeMethod
Frequency and severity of treatment related adverse events (TRAEs) in subjects receiving IK-175 in combination with nivolumab [Safety and Tolerability]Treatment Period (Approximately 18 months)

Number and severity of TRAEs as assessed by CTCAE 5.0

Frequency and severity of adverse events leading to dose modifications and/or treatment discontinuation in subjects receiving IK-175 in combination with nivolumab [Safety and Tolerability]Study Treatment Period (Approximately 18 months)

Number and severity of adverse events leading to dose modifications and/or treatment discontinuation as assessed by CTCAE 5.0

Preliminary antitumor activity of IK-175 treatment in combination with nivolumab: Objective response rate (ORR)Through study completion including the Treatment Period (approximately 18 months) and the Follow-Up Period (Up to 6 months)

ORR is defined as the percentage of participants with confirmed complete response (cCR) or confirmed partial response (cPR) per RECIST 1.1

Preliminary antitumor activity of IK-175 treatment in combination with nivolumab: Duration of response (DOR)Through study completion including the Treatment Period (approximately 18 months) and the Follow-Up Period (Up to 6 months))

DOR is defined as the time from the first documented CR or PR per RECIST 1.1 until disease progression or death from any cause

Frequency and severity of treatment emergent adverse events (TEAEs) in subjects receiving IK-175 in combination with nivolumab [Safety and Tolerability]Treatment Period (Approximately 18 months)

Number and severity of TEAEs as assessed by CTCAE 5.0

Frequency and severity of serious adverse events (SAEs) in subjects receiving IK-175 in combination with nivolumab [Safety and Tolerability]Treatment Period (Approximately 18 months)

Number and severity of SAEs as assessed by CTCAE 5.0

Preliminary antitumor activity of IK-175 treatment in combination with nivolumab: Disease control rate (DCR)Through study completion including the Treatment Period (approximately 18 months) and the Follow-Up Period (Up to 6 months)

DCR is defined as the percentage of participants with no occurrence of progressive disease with either cCR, cPR, or stable disease \[SD\] ≥ 16 weeks per RECIST 1.1 from the beginning of study therapy

Secondary Outcome Measures
NameTimeMethod
PK of IK-175 when administered in combination with nivolumab: minimum serum concentration (Cmin)Time Frame: Day 1, 2, 15 of Cycle 1, Day 1 of Cycles 2-3 (every 28 days), followed by Day 1 of every even cycle beginning with cycle 4 (every 56 days) through end of treatment (approximately 18 months)

Determine IK-175 Cmin

Preliminary antitumor activity of IK-175 in combination with nivolumab: Progression-free survival (PFS) median and at 6 monthsThrough study completion including the Treatment Period (approximately 18 months) and the Follow-Up Period (Up to 6 months)

PFS is defined as the length of time from the beginning of study treatment to the first observed disease progression or death due to any cause

Preliminary antitumor activity of IK-175 in combination with nivolumab: Overall survival (OS), median and at 6 monthsThrough study completion including the Treatment Period (approximately 18 months) and the Follow-Up Period (Up to 12 months)

OS is defined as the length of time from the beginning of study treatment to the date of death due to any cause

PK of IK-175 when administered in combination with nivolumab: area under the plasma concentration-time curve (AUC)Time Frame: Day 1, 2, 15 of Cycle 1, Day 1 of Cycles 2-3 (every 28 days), followed by Day 1 of every even cycle beginning with cycle 4 (every 56 days) through end of treatment (approximately 18 months)

Determine IK-175 AUC

PK of IK-175 when administered in combination with nivolumab: maximum serum concentration (Cmax)Time Frame: Day 1, 2, 15 of Cycle 1, Day 1 of Cycles 2-3 (every 28 days), followed by Day 1 of every even cycle beginning with cycle 4 (every 56 days) through end of treatment (approximately 18 months)

Determine IK-175 Cmax

Pharmacokinetics (PK) of IK-175 when administered in combination with nivolumab: half-life (t1/2)Time Frame: Day 1, 2, 15 of Cycle 1, Day 1 of Cycles 2-3 (every 28 days), followed by Day 1 of every even cycle beginning with cycle 4 (every 56 days) through end of treatment (approximately 18 months)

Determine IK-175 half-life (t1/2)

Trial Locations

Locations (4)

UPMC Hillman Cancer Center

🇺🇸

Pittsburgh, Pennsylvania, United States

Washington University

🇺🇸

Saint Louis, Missouri, United States

University of Chicago Medical Center

🇺🇸

Chicago, Illinois, United States

Seattle Cancer Care Alliance

🇺🇸

Seattle, Washington, United States

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