Temsirolimus With or Without Cetuximab in Patients With Recurrent and/or Metastatic Head and Neck Cancer Who Did Not Respond to Previous Therapy

PRIMARY OBJECTIVES:

I. Primary endpoint is progression free survival (PFS) of cetuximab/temsirolimus combination cohort (Arm A) compared to temsirolimus alone (Arm B).

SECONDARY OBJECTIVES:

I. Progression-free survival (PFS) of cetuximab/temsirolimus combination group (Arm A) and temsirolimus control group (Arm B) compared to a historic control cohort.

II. Subgroup analysis of myofibroblast (+) cohort (PFS). III. Overall survival (OS). IV. Toxicities. V. Response (Response Evaluation Criteria in Solid Tumors [RECIST])/absolute tumor shrinkage (waterfall plot analysis).

VI. Activity of combination therapy (temsirolimus/cetuximab) after failure (progressive disease [PD]) of temsirolimus monotherapy.

OUTLINE: Patients are randomized to 1 of 2 treatment arms.

ARM A: Patients receive temsirolimus intravenously (IV) over 30-60 minutes and cetuximab IV over 1-2 hours once weekly. Courses repeat every 4 weeks in the absence of disease progression or unacceptable toxicity.

ARM B: Patients receive temsirolimus as in Arm A. Courses repeat every 4 weeks in the absence of disease progression or unacceptable toxicity. Patients with progressive disease may cross over to Arm A.

After completion of study therapy, patients are followed up for a minimum of 8 weeks and then once a year for 5 years.

Inclusion criteria

• Histologically/cytologically confirmed diagnosis of squamous cell carcinoma of head and neck origin not amenable to curative intent therapy; information on prior exposure to cetuximab (duration, single agent/combined with chemotherapy/combined with radiation, best response, interval prior to study entry) will be collected
• Progressive disease by RECIST criteria (or unequivocal clinical progression) on a cetuximab based therapy in any line of therapy for recurrent/metastatic disease; prior use of cetuximab for recurrent/metastatic disease is defined as palliative intent use either alone or in combination with chemotherapy with a minimum of 2 weeks of uninterrupted treatment with cetuximab; treatment with cetuximab during radiotherapy or chemoradiotherapy is not sufficient
• Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1
• Presence of measurable lesions by RECIST: patients must have measurable disease, defined as at least one lesion that can be accurately measured in at least one dimension (longest diameter to be recorded) as >= 20 mm with conventional techniques or as >= 10 mm with spiral computed tomography (CT) scan
• Knowledge of the anatomic site of the original tumor (oropharynx versus non-oropharynx) or alternatively human papilloma virus (HPV) status; the trial will stratify patients by oropharynx versus non-oropharynx origin; HPV(+) tumors will be counted in the oropharynx cohort, HPV(-) tumors in the non-oropharynx cohort; at a later point all patients will undergo HPV testing as part of this trial; any widely used form of HPV testing is acceptable (including but not limited to HPV in situ hybridization [ISH], p16 testing [immunohistochemistry (IHC)], HPV16 testing, polymerase chain reaction [PCR], hybrid capture, etc)
• Availability of formalin-fixed, paraffin-embedded (FFPE) tissue and blood

• FFPE: >=14 slides containing tumor, 18 recommended

• 7-10 slides 5 um thick, AND 7-10 slides 10 um thick, and cut with a clean blade (use new blade if possible or clean vigorously to avoid RNA/DNA, RNase contamination)
• Blood: two 10 cc ethylenediaminetetraacetic acid (EDTA) purple top tubes (blood); two 2 ml cryovials (serum)
• Patients with human immunodeficiency virus (HIV), not requiring highly active antiretroviral treatment (HAART) therapy are eligible
• Life expectancy of greater than 8 weeks
• Leukocytes >= 2,000/mcL
• Absolute neutrophil count >= 1,500/mcL
• Platelets >= 100,000/mcL
• Total bilirubin within normal institutional limits (unless proven Gilbert's disease, which after principal investigator [PI] approval patient may be included)
• Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 2.5 X institutional upper limit of normal
• Creatinine within 1.5 X normal institutional limits
• Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation
• Ability to understand and the willingness to sign a written informed consent document
• Fasting glucose of =< 120 mg/dl and glycosylated hemoglobin (HbA1c) =< 7.5%

Exclusion criteria

• Patients who have had chemotherapy or radiotherapy within 2 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study or those who have not recovered from adverse events due to agents administered more than 2 weeks earlier
• Patients may not be receiving any other investigational agents
• Patients with known, active brain metastases should be excluded from this clinical trial; patients with treated brain metastases stable for >= 12 weeks are eligible
• History of allergic reactions attributed to compounds of similar chemical or biologic composition to temsirolimus or cetuximab
• Concurrent life-threatening diseases: patients with diseases which with reasonable certainty do not limit life expectancy to 12 months or less are eligible; assessment of such concurrent illnesses should be by the principal investigator
• Use of strong inhibitors/inducers of CYP3A4 is not permitted
• Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements
• Pregnant women are excluded from this study
• Breastfeeding should be discontinued if the mother is treated with temsirolimus
• HIV-positive patients with normal immune function (CD4 count > 200) are eligible if there are no drug interactions with temsirolimus or cetuximab; patients with impaired immune function are ineligible due to the risk of additional immunosuppression from temsirolimus therapy
• Concurrent administration of temsirolimus with vaccinations is to be avoided and a 14-day window from administration of the vaccine is advised; in emergent situations this policy may be revisited by the PI if deemed important for the patient's health
• Poorly controlled hyperglycemia (HbA1C > 7.5%) or hyperlipidemia are exclusion criteria; hyperglycemia or hyperlipidemia need to be appropriately managed and controlled
• Concurrent use of warfarin is allowed, but requires close monitoring of prothrombin time (PT)/international normalized ratio (INR)
• Patients with clinically significant pneumonitis/pulmonary infiltrates unless there is a known and treatable cause for the condition