Experimental antibody combo aims to boost immune attack on head and neck tumors

NCT ID NCT03690986

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 16, 2026 · Last updated Jul 17, 2026 · Updated 1 time

Summary

This phase 1 trial tests whether adding an experimental antibody called VX15/2503 to standard immunotherapy drugs (ipilimumab or nivolumab) can help shrink head and neck cancers before surgery. The study enrolls people with early-stage (I-IVA) squamous cell carcinoma of the head and neck who have not received prior treatment. Researchers will measure changes in immune cells within tumors and blood to see if the combination improves the body's ability to fight cancer.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
a combination of an experimental antibody (VX15/2503) with immunotherapy drugs (ipilimumab or nivolumab)
What this could lead to
If successful, this combination could offer a new treatment option for head and neck cancer patients who have not had prior therapy.
What could go wrong
This is an early phase 1 trial with only 35 participants, so results may not apply broadly. The combination may cause significant side effects or fail to improve outcomes.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

35 people

The number who actually took part.

Started

Nov 2018

Expected to finish

Nov 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Stage I-IVA cytologically or histologically-proven head and neck squamous cell carcinoma (HNSCC), p16 positive and negative allowed * Oropharyngeal tumors must have p16 testing done * Cancer confirmed to be surgically resectable, with surgery evaluation with planned resection * Archival tissue prior to treatment available from at most 6 months prior to study enrollment. Otherwise new pre-treatment biopsy mandatory * No prior treatment for HNSCC * Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1 * Absolute neutrophil count ≥ 1,500 cells/µL * Platelets ≥ 100,000/µL * Hemoglobin ≥ 9.0g/dL (may receive packed red blood cell \[prbc\] transfusion) * Total bilirubin ≤ 1.5 x the upper limit of normal (ULN) * Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 2.5 x ULN * Albumin ≥ 3.0 g/dL * Serum creatinine ≤ 1.5 x ULN * Calculated creatinine clearance of ≤ 50 mL/min * International normalized ratio (INR) ≤ 1.5. Anticoagulation is allowed only with low molecular weight heparin (LMWH). Patient receiving LMW heparin on stable therapeutic dose for more than 2 weeks or with factor Xa level \< 1.1 units/mL (U/mL) are allowed on the trial * Willingness and ability to comply with scheduled visits, treatment plans, laboratory tests, and other study procedures * Ability to understand and willingness to sign a written informed consent document * Female subjects of childbearing potential must agree to use adequate contraception (e.g., hormonal or barrier method of birth control; abstinence) for the duration of study treatment and 3 months after completion * Male subjects must agree to use adequate contraception (e.g., condoms; abstinence) for the duration of study treatment and 3 months after completion * Female subjects of childbearing age must have a negative serum pregnancy test at study entry Exclusion Criteria: * Poor venous access for study drug administration * Nasopharynx cancer, cancer of unknown primary, sinonasal cancer * Determined not to be a surgical candidate due to medical co-morbidities * Treatment with chronic immunosuppressants (e.g., cyclosporine following transplantation) * Prior organ allograft or allogeneic bone marrow transplantation * Subjects with any active autoimmune disease or history of known or suspected autoimmune disease except for subjects with vitiligo, resolved childhood asthma/atopy, type I diabetes mellitus, residual hypothyroidism due to autoimmune condition only requiring hormone replacement, psoriasis not requiring systemic treatment, or conditions not expected to recur in the absence of an external trigger are permitted to enroll * Subjects with a condition requiring systemic treatment with either corticosteroids (\> 10 mg daily prednisone equivalents) or other immunosuppressive medications within 14 days of study drug administration. Inhaled or topical steroids and adrenal replacement doses \> 10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease * Women who are pregnant or lactating * Uncontrolled intercurrent illness including, but not limited to, human immunodeficiency virus (HIV)-positive subjects receiving combination antiretroviral therapy, ongoing or active infection, symptomatic congestive heart failure (New York Heart Association \[NYHA\] class III or IV), unstable angina pectoris, ventricular arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements * Other medications, or severe acute/chronic medical or psychiatric condition, or laboratory abnormality that may increase the risk associated with study participation or study drug administration, or may interfere with the interpretation of study results, and in the judgment of the investigator would make the subject inappropriate for entry into this study * Clinical evidence of bleeding diathesis or coagulopathy * Prior invasive malignancy (except non-melanomatous skin cancer, low or intermediate risk prostate cancer, or in situ carcinoma fully resected) unless disease free for a minimum of one year * Patients that have had prior treatment for HNSCC are not eligible * Active bacterial or fungal infections requiring systemic treatment within 7 days of treatment * Use of other investigational drugs (drugs not marked for any indication) within 28 days or at least 5 half-lives (whichever is longer) before study drug administration * History of severe hypersensitivity reactions to other monoclonal antibodies * Non-oncology vaccines within 28 days prior to or after any dose of ipilimumab * No archival tissue available pre-study treatment, and repeat biopsy not feasible

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Conditions

The condition(s) this trial relates to.

head and neck squamous cell carcinoma Squamous Cell Carcinoma of Head and Neck

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Emory University Hospital Midtown

    Atlanta, Georgia, 30308, United States

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