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

A Phase 1b, Open-Label, Single-Arm Dose-Expansion Study of IK-175, an Oral Aryl Hydrocarbon Receptor Inhibitor, in Combination With Nivolumab in Patients With Primary PD-1 Inhibitor Resistant Metastatic or Locally Incurable, Recurrent HNSCC

Status
Withdrawn
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05472506
Enrollment
0
Registered
2022-07-25
Start date
2023-03-31
Completion date
2023-04-30
Last updated
2024-03-15

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

Conditions

Head and Neck Cancer, Head and Neck Squamous Cell Carcinoma, Head Cancer, Head Cancer Neck, Neck Cancer, Neck Carcinoma

Keywords

IK-175, AHR antagonist, AHR inhibitor, Aryl Hydrocarbon Receptor Antagonist, Immunooncology, AHRi, Aryl Hydrocarbon Receptor Inhibitor, Antagonist, Inhibitor, anti-PD1, aPD1, nivolumab, checkpoint inhibitor, CPI, combination therapy

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.

Interventions

DRUGIK-175 + nivolumab

IK-175 + nivolumab

Sponsors

Bristol-Myers Squibb
CollaboratorINDUSTRY
Ikena Oncology
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Masking description

Open label study

Intervention model description

Randomized 1:1 to Cohort 1 or Cohort 2

Eligibility

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

Inclusion criteria

Key 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/

Design outcomes

Primary

MeasureTime frameDescription
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 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 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
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: 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

MeasureTime frameDescription
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
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
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)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 11, 2026