New cancer combo drug tested in tiny safety study
NCT ID NCT06894771
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early study tested the safety of an experimental drug called MK-4700, given alone or with the approved immunotherapy Keytruda, in 5 people with advanced solid tumors that had stopped responding to other treatments. The main goal was to find a safe dose and see how the body handles the drug. Because it's a Phase 1 trial with very few participants, it cannot tell us if the drug works against cancer.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- MK-4700 (an experimental biologic) and pembrolizumab (Keytruda)
- What this could lead to
- If successful, this could point toward a safe dose of MK-4700 for further testing in larger cancer trials.
- What could go wrong
- This is a very early, small study (only 5 people) focused on safety, not effectiveness. The drug may not work or could have serious side effects.
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
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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5 people
The number who actually took part.
- Started
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Apr 2025
- Finished
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Dec 2025
- Lead sponsor
-
A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
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
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Anyone
- Healthy volunteers
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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 Hide 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: The key inclusion criteria include but are not limited to the following: * Has histologically or cytologically confirmed advanced/metastatic solid tumor by pathology report who have experienced disease progression on or after prior anti-cancer treatments, or been intolerant to, or refused all treatment known to confer clinical benefit * Has head and neck squamous cell carcinoma (HNSCC), melanoma (cutaneous), non-small cell lung cancer (NSCLC), cervical cancer, triple negative breast cancer (TNBC), urothelial carcinoma (UC), or renal cell carcinoma (RCC; clear cell, papillary) * If human immunodeficiency virus (HIV) infected, must have well controlled HIV on antiretroviral therapy (ART) * Has normal cardiac function Exclusion Criteria: The key exclusion criteria include but are not limited to the following: * If HIV-infected with a history of Kaposi's sarcoma and/or Multicentric Castleman's Disease * Has known additional malignancy that is progressing or has required active treatment within the past 2 years * Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis * Has active autoimmune disease that has required systemic treatment in the past 2 years except replacement therapy * Has history of (noninfectious) pneumonitis/interstitial lung disease that required steroids * Has current pneumonitis/interstitial lung disease * Has active infection requiring systemic therapy * Has known history of Hepatitis B (defined as Hepatitis B surface antigen reactive) or known active Hepatitis C virus infection * Has had an allogeneic tissue/solid organ transplant in the last 5 years
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Centre intégré de cancérologie du CHU de Québec Université Laval, Hôpital de l'Enfant-Jésus ( Site 0102)
Québec, Quebec, G1J 1Z4, Canada
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John Theurer Cancer Center at Hackensack University Medical Center ( Site 0301)
Hackensack, New Jersey, 07601, United States
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NEXT Oncology ( Site 0300)
San Antonio, Texas, 78229, United States
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Princess Margaret Cancer Center ( Site 0101)
Toronto, Ontario, M5G 2M9, Canada
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Rabin Medical Center ( Site 0202)
Petah Tikva, 4941492, Israel
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Rambam Health Care Campus ( Site 0201)
Haifa, 3109601, Israel
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Sheba Medical Center ( Site 0200)
Ramat Gan, 5265601, Israel
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