Study of IMC-11F8 in Participants With Advanced Solid Tumors

This single center, open-label, single-arm, Phase 1 study will enroll 18 participants at a maximum. The actual size will vary depending on the dose-limiting toxicities (DLTs) observed and the resultant sizes of the cohorts. Participants will receive IMC-11F8 administered intravenously, once every 2 weeks or on Days 1 and 8 every 3 weeks for 6 weeks (1 cycle). All infusions can be administered within ± 1 day of the scheduled administration date. After 1 cycle of treatment, participants who have an objective response or stable disease may continue to receive IMC-11F8 at the same dose and schedule until disease progression or other withdrawal criteria are met.

A minimum of 3 participants will be enrolled in each cohort. Dose escalation in successive cohorts will occur once all participants complete 1 cycle of therapy.

Participants will be enrolled sequentially into each cohort. A completed participant will be either a participant who completes the initial 6-week treatment period (Cycle 1) or a participant who discontinues therapy for an IMC-11F8-related toxicity during Cycle 1. Participants who do not complete the first 6 weeks of treatment for reasons other than an IMC-11F8-related toxicity will be replaced. Toxicity data for each cohort will be reviewed prior to dose escalation. Upon completion of all required safety evaluations during the initial 6 weeks, the next cohort of new participants will be treated at the next higher dose level using a dose escalation scheme.

Inclusion criteria

• Solid tumor participant who has been histopathologically or cytologically documented
• Advanced primary or recurrent solid tumors participant who has not responded to standard therapy or for whom no standard therapy is available
• The participant has measurable or nonmeasurable lesions according to Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.0 guidelines
• The participant has an Eastern Cooperative Oncology Group performance status (ECOG PS) score of 0 or 1 at study entry
• The participant is able to provide written informed consent
• The participant is age 20 years or older
• The participant has a life expectancy of > 3 months
• The participant has adequate hematologic function
• The participant has adequate renal function
• The participant agrees to use adequate contraception for the duration of study participation and for at least 12 weeks after the last dose of study therapy
• The participant has adequate recovery from recent surgery, chemotherapy, and radiation therapy (including palliative radiation therapy). At least 28 days (6 weeks for nitrosoureas or mitomycin C) must have elapsed from major surgery, prior chemotherapy, prior treatment with an investigational agent or device, or prior radiation therapy. For treatment with nonapproved monoclonal antibodies, a minimum of 8 weeks must have elapsed
• The participant is willing to comply with study procedures until the End-of-Therapy visit

Exclusion criteria

• The participant has received chemotherapy or therapeutic radiotherapy within 28 days (6 weeks for nitrosoureas or mitomycin C) prior to entering the study, or the participant has ongoing side effects ≥Grade 2 due to agents administered more than 28 days earlier (except alopecia)
• The participant has documented and/or symptomatic brain or leptomeningeal metastases (participants who are clinically stable [no symptoms during the 4 weeks prior to enrollment] with an assessment that no further treatment [radiation, surgical excision, or administration of steroids] is required are permitted to enter the study)
• The participant has an uncontrolled intercurrent illness including, but not limited to:

• Ongoing or active infection requiring systemic antibiotic treatment
• Congestive heart failure (Class III or IV per the New York Heart Association heart disease classification guidelines)
• The participant has participated in clinical studies of nonapproved experimental agents or procedures within 4 weeks prior to first dose of study therapy, or within 8 weeks prior to first dose of study therapy for nonapproved monoclonal antibodies
• The participant has received any previous treatment with monoclonal antibodies targeting the epidermal growth factor receptor (EGFR). Previous treatment with EGFR tyrosine kinase inhibitors (TKI), approved or nonapproved, is allowed. There must be a time interval of at least 4 weeks between the last EGFR TKI dose and the first dose of IMC-11F8
• The participant has acute or subacute intestinal occlusion/obstruction
• The participant has a history of inflammatory bowel disease (for example, Crohn's disease, ulcerative colitis) requiring medical intervention in the 3 years prior to study entry
• The participant has acute pulmonary disorder, interstitial pneumonia, pulmonary fibrosis, or history thereof
• The participant has a known allergy to any of the treatment components, or to monoclonal antibodies or other therapeutic proteins such as fresh frozen plasma, human serum albumin, cytokines, or interleukins. In the event that there is suspicion that the participant may have allergies, the participant should be excluded
• The participant, if female, is pregnant (confirmed by urine or serum pregnancy test) or lactating
• The participant has known alcohol or drug dependency
• The participant is hepatitis B virus (HBV) antigen, hepatitis C virus (HCV) antibody, or human immunodeficiency virus (HIV) antibody positive
• The participant is assessed as inadequate for the study by the investigator