Safety and Efficacy of Ruxolitinib in Patients With HNSCC and High NLR Treated With Pembrolizumab - The Phase 2 InflammaSTOP Trial

Trial statusNot yet recruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity Hospital, Basel, Switzerland

About this trial

The goal of this Phase 2 clinical trial is to learn if adding ruxolitinib to pembrolizumab may improve treatment outcomes in patients with head and neck squamous cell carcinoma (HNSCC) who have increased levels of systemic inflammation before treatment, as measured by the neutrophil-to-lymphocyte ratio (NLR). The investigational drug will be used outside of its approved indication (off-label use) based on its known pharmacologic mechanism and prior clinical experience in patients with myeloproliferative neoplasms and graft-versus-host disease.

The main questions it aims to answer are:

Is treatment with ruxolitinib in combination with pembrolizumab safe and well tolerated? Can the addition of ruxolitinib improve treatment outcomes compared with historical data? How does ruxolitinib affect the immune system and inflammation when given together with pembrolizumab? How does the combination treatment affect patients' quality of life?

Participants will:

Receive treatment with pembrolizumab and intermittent ruxolitinib. Undergo blood tests to assess immune responses and inflammation. Attend study visits for safety assessments and treatment monitoring. Complete quality-of-life questionnaires, where applicable.

The results of this study will help researchers better understand how inflammation and the body's immune system affect treatment outcomes in people with head and neck cancer. The findings may also help improve the design of future studies investigating new treatment combinations for this disease.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Histologically confirmed diagnosis of R/M HNSCC without local treatment options planned for treatment with pembrolizumab monotherapy (R/M cohort) or locally advanced HNSCC planned for perioperative treatment with pembrolizumab (neoadjuvant cohort)

PD-L1 CPS≥1

ECOG-performance score 0-2

NLR >4 before start of pembrolizumab treatment

Disqualifiers

Participation in another interventional study simultaneously and within the last 30 days prior to inclusion

Concurrent malignancies other than disease under study within 5 years prior to inclusion, with the exception of those with a negligible risk of metastasis or death treated with expected curative outcome

Active, known, or suspected autoimmune disease requiring systemic treatment, a concomitant therapy with systemic immune suppression, up to 5 mg/d prednisolone equivalent is allowed

Patients with severely reduced liver function (Child-Pugh Class C)

Trial design

Design model

Single group

Treatments tested in this trial

  • Ruxolitinib

    Drug

    Ruxolitinib administered orally on an intermittent schedule in combination with pembrolizumab.

  • Pembrolizumab

    Drug

    Pembrolizumab administered as standard-of-care immune checkpoint inhibitor therapy.

Treatment groups

66 Participants
are divided into 2 treatment groups
Group A: R/M cohortExperimental treatment 2 interventions
Group B: Neoadjuvant CohortExperimental treatment 2 interventions

Trial outcomes

Primary outcomes

1

6-Month Progression-Free Survival Rate (R/M cohort only)

Progression-free survival is defined as the time from enrollment to the first documented disease progression or death from any cause, whichever occurs first. The outcome measure is the proportion of participants who are alive and progression-free 6 months after enrollment.

Time frame
6 months after enrollment

Secondary outcomes

1

Change in systematic inflammation (Neutrophil-to-Lymphocyte Ratio, NLR)

Percentage of participants achieving normalisation of the neutrophil-to-lymphocyte ratio (NLR) after completion of JAK-inhibition treatment. NLR is calculated as the absolute neutrophil count divided by the absolute lymphocyte count. Participants are considered to have achieved NLR normalisation if the post-treatment NLR meets the protocol-defined threshold for a normal NLR value.

Time frame
R/M cohort: at screening within 21 days before start of ruxolitinib or at week 6 (baseline) and at week 12. Neoadjuvant cohort: at screening within 21 days before start of ruxolitinib or at week 3 (baseline), at week 5 and at week 12.
2

Adherence to Planned JAK-Inhibition Treatment (R/M cohort only)

Proportion of participants who complete the planned JAK-inhibition treatment duration. Participants are considered adherent if they receive JAK-inhibition according to the protocol-defined treatment schedule and duration without premature discontinuation.

Time frame
From initiation of ruxolitinib treatment to Week 12 (up to 6 weeks of treatment).
3

Tumour response (R/M cohort only)

Best tumour response at week 12 by investigator assessment (objective response rate). Rationale: early signal of anti-tumour activity

Time frame
Week 12
4

Overall survival (R/M cohort only)

Overall survival is defined as the time from enrollment to death from any cause. Survival status will be assessed during follow-up and recorded every 6 months.

Time frame
From enrollment until death from any cause or until the end of study follow-up (up to approximately 5 years).

Other outcomes

1

Plasma Inflammatory Biomarkers

Change in circulating inflammatory biomarkers, including plasma cytokines and other soluble factors, from before initiation of JAK-inhibition to after completion of JAK-inhibition treatment, measured using multi-analyte plasma assays.

Time frame
Baseline and after completion of JAK-inhibition treatment.
2

≥20% Increase in T Cell Richness or Diversity

Percentage of participants achieving a relative increase of at least 20% in peripheral blood T cell richness or diversity between initiation and completion of JAK-inhibition treatment, measured by T cell receptor next-generation sequencing (TCR-NGS).

Time frame
Before initiation of ruxolitinib treatment and after completion of ruxolitinib treatment (Week 6 and Week 12 in the R/M cohort; Week 3 and Week 5-6 in the neoadjuvant cohort).
3

≥20% Decrease in T Cell Clonality

Percentage of participants achieving a relative decrease of at least 20% in peripheral blood T cell clonality between initiation and completion of JAK-inhibition treatment, measured by T cell receptor next-generation sequencing (TCR-NGS).

Time frame
Before initiation of ruxolitinib treatment and after completion of ruxolitinib treatment (Week 6 and Week 12 in the R/M cohort; Week 3 and Week 5-6 in the neoadjuvant cohort).
4

T Cell Richness, Diversity, and Clonality

Levels of peripheral blood T cell richness, diversity, and clonality measured by T cell receptor next-generation sequencing (TCR-NGS) before initiation and after completion of JAK-inhibition treatment.

Time frame
Before initiation of ruxolitinib treatment and after completion of ruxolitinib treatment (Week 6 and Week 12 in the R/M cohort; Week 3 and Week 5-6 in the neoadjuvant cohort).

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

University Hospital, Basel, Switzerland

Lead sponsor

Clinical Trial Unit, University Hospital Basel, Switzerland

Collaborator

This trial is not recruiting at the moment. You can still explore other options: