New drug combo targets Hard-to-Treat cancers in early trial
NCT ID NCT05838768
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-phase trial tests a new drug called HRO761, alone or combined with pembrolizumab or irinotecan, in people with advanced solid tumors that have high microsatellite instability (MSI-high) or mismatch repair deficiency (dMMR). The main goals are to check safety and find the best dose. About 123 participants whose cancers have not responded to prior treatments will take part.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- HRO761 (tablet), pembrolizumab (infusion), irinotecan (infusion)
- What this could lead to
- If successful, this could point toward a new treatment option for people with advanced cancers that have specific genetic markers (MSI-high or dMMR).
- What could go wrong
- This is an early Phase 1 trial with only 123 participants, focused on safety and dosing. It is too soon to know if HRO761 will work, and side effects are unknown.
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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123 people
The number who actually took part.
- Started
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Jun 2023
- Expected to finish
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Aug 2027
An estimate. End dates often move.
- Lead sponsor
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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
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18 to 100 years
- 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.
Key Inclusion criteria: * Patients with advanced unresectable or metastatic MSIhi or MMR deficient (dMMR) solid tumors who have progressed after or are intolerant to prior standard therapy. * Arm A and C: Patients must have progressed on the most recent therapy for advanced disease including one prior line of immune checkpoint inhibitor therapy. * Arm B: Patients should have received prior chemotherapy or targeted therapy, and patients should have received prior immune checkpoint inhibitor or should be expected to benefit from immune checkpoint inhibitor therapy. * Eastern Cooperative Oncology Group (ECOG) Performance Status ≤ 1 * Measurable disease as determined by RECIST version 1.1 * • All patients (Arm A, B and C) will have available archival tumor tissue obtained prior to study treatment initiation, to allow retrospective MSIhi/dMMR status confirmation. A newly obtained biopsy will only be collected at screening if there is no archival tumor tissue available and if safe and medically feasible according to treating institution's guidelines. Exceptions may be considered after documented discussion with Novartis. Key Exclusion criteria: * Impaired cardiac function or clinically significant cardiac disease * Clinically significant eye impairment * Patients with a primary Central Nervous System (CNS) tumor or tumor metastatic to the CNS * Human Immunodeficiency Virus (HIV) infection * Active Hepatitis B Virus (HBV), Hepatitis C Virus (HCV) or Tuberculosis infection. Patients whose disease is controlled under antiviral therapy should not be excluded. * History of severe hypersensitivity reactions to any ingredient of study drug(s) * Impairment of gastrointestinal function or gastrointestinal disease that may significantly alter the absorption of study drugs (e.g., severe ulcerative disease, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome, small bowel resection), except for prior gastrectomy. Other protocol-defined inclusion/exclusion criteria may apply
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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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Columbia University Medical Ctr
New York, New York, 10032, United States
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Dana Farber Cancer Institute
Boston, Massachusetts, 02215, United States
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Memorial Sloan Kettering
New York, New York, 10017, United States
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Novartis Investigative Site
Brussels, 1200, Belgium
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Novartis Investigative Site
Beijing, 100036, China
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Novartis Investigative Site
Guangzhou, 510655, China
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Novartis Investigative Site
Bordeaux, 33076, France
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Novartis Investigative Site
Marseille, 13273, France
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Novartis Investigative Site
Toulouse, 31059, France
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Novartis Investigative Site
Essen, 45147, Germany
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Novartis Investigative Site
Tel Aviv, 6423906, Israel
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Novartis Investigative Site
Milan, MI, 20162, Italy
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Novartis Investigative Site
Rozzano, MI, 20089, Italy
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Novartis Investigative Site
Kashiwa, Chiba, 2778577, Japan
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Novartis Investigative Site
Oslo, 0310, Norway
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Novartis Investigative Site
Singapore, 119228, Singapore
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Novartis Investigative Site
Seoul, 03722, South Korea
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Novartis Investigative Site
Barcelona, 08035, Spain
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Novartis Investigative Site
Madrid, 28009, Spain
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Novartis Investigative Site
Madrid, 28040, Spain
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Novartis Investigative Site
Valencia, 46010, Spain
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Novartis Investigative Site
Stockholm, 17176, Sweden
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Novartis Investigative Site
Taipei, 10002, Taiwan
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Novartis Investigative Site
London, SW3 6JJ, United Kingdom
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Novartis Investigative Site
Oxford, OX3 7LE, United Kingdom
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UCSF
San Francisco, California, 94115, United States
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Univ of TX MD Anderson Cancer Cntr
Houston, Texas, 77030, United States
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University of California LA
Los Angeles, California, 90095, United States