New drug cocktail targets Hard-to-Treat cancers
NCT ID NCT07318649
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This Phase 2 study tests two oral drugs, GH21 and D-1553, in 120 adults with advanced solid tumors that have a specific mutation called KRASG12C. Participants have already tried other treatments without success. The goal is to see if the combination can shrink tumors and control the disease. The study is not yet recruiting.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- GH21 capsules and D-1553 tablets
- What this could lead to
- If successful, this combination could offer a new treatment option for people with KRASG12C-mutated cancers that have stopped responding to other therapies.
- What could go wrong
- This is an early Phase 2 trial with only 120 participants, so results may not apply to everyone. The drugs may cause side effects or fail to shrink tumors in many patients.
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 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 120 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Dec 2025
An estimate. Start dates often move.
- Expected to finish
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Jun 2027
An estimate. End dates often move.
- Lead sponsor
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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
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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: * 1)Patients or their legal representatives can understand and voluntarily sign a written informed consent form (before starting this study and any study procedures); 2)Age ≥ 18 years, male or female; 3)Cohort 1: Histologically or cytologically confirmed locally advanced or metastatic non-small cell lung cancer with KRASG12C mutation who have failed standard therapy or no standard therapy and have been treated with KRASG12C inhibitors; Cohort 2: Histologically or cytologically confirmed locally advanced or metastatic solid tumors (except non-small cell lung cancer) with KRASG12C mutation who have failed standard therapy or have no standard therapy and have been treated with KRASG12C inhibitors. 4)Patients must have at least one measurable lesion that meets the definition of RECISTv1.1 (tumor lesions located in previously irradiated areas or other locoregional treatment sites are generally not considered measurable unless there is definite progression of the lesion); 5)Expected survival ≥ 3 months; 6)ECOG performance score: 0-1; 7)Patients must have adequate organ function, defined as follows: Blood * Absolute neutrophil count (ANC) ≥ 1.5 × 109/L without granulocyte colony-stimulating factor support within 14 days; * Platelets≥100×109/L without thrombopoietin (TPO) and interleukin-11 (IL-11) transfusion within 14 days; * Hemoglobin ≥ 90 g/L without transfusion within 14 days and without erythropoietin (EPO); Renal * Serum creatinine ≤ 1.5 times the upper limit of normal (ULN) or creatinine clearance ≥ 60 ml/min calculated using the modified Cockcroft-Gault equation or eGFR ≥ 60 ml/min estimated by the MDRD equation; Liver * Albumin ≥ 3.0 g/dL; * Total bilirubin ≤ 1.5 × ULN; in case of liver metastasis, total bilirubin ≤ 2.5 × ULN; * AST/ALT ≤ 2.5 × ULN; in case of liver metastasis, AST/ALT ≤ 5 × ULN; Coagulation * International normalized ratio (INR) and prothrombin time (PT) ≤ 1.5 × ULN unless the patient is receiving anticoagulant therapy (INR \< 2.5 × ULN) and PT or PTT is within the therapeutic range of the intended use of anticoagulants; * Activated partial thromboplastin time (APTT) ≤ 1.5 × ULN unless the patient is receiving anticoagulant therapy (APTT \< 2.5 × ULN) and PT or PTT is within the therapeutic range of the intended use of anticoagulants. 8)Men of childbearing potential and women of childbearing potential must agree to practice reliable contraception (hormonal or barrier methods or abstinence) from signing of informed consent until 6 months after the last dose of study drug. Females of childbearing potential must have a negative pregnancy test ≤ 7 days prior to the first dose of study drug. Exclusion Criteria: * 1)Patients who have received chemotherapy, biological agents for anti-tumor therapy within 3 weeks before the first dose, radiotherapy, endocrine therapy and other anti-tumor drugs within 4 weeks before the first dose, except for the following: * nitrosourea or mitomycin C within 6 weeks before the first use of study drugs; * oral fluorouracil, small molecule targeted drugs and Chinese herbal medicine or Chinese patent medicine with anti-tumor indications within 5 half-lives or 2 weeks before the first use of study drugs (whichever is shorter); * Local palliative radiotherapy within 2 weeks before the first use of study drugs; 2)Receiving other unmarketed investigational drugs or treatments within 5 half-lives or 4 weeks (whichever is shorter) before the first dose; 3)Patients who underwent major organ surgery (excluding needle biopsy) or had significant trauma within 4 weeks before the first dose, or required elective surgery during the trial; 4)Use of strong inhibitors or strong inducers of CYP3A4 or P-gp within 2 weeks or 5 half-lives before the first dose; 5)Previous treatment with other SHP2 inhibitors. 6)Evidence of the following cardiac diseases: acute myocardial infarction, unstable angina pectoris, coronary artery bypass grafting, cerebrovascular accident or transient ischemic attack within 6 months prior to the first dose; * Grade III-IV heart failure according to New York Heart Association functional classification at screening; * left ventricular ejection fraction (LVEF)≤50% by echocardiography (ECHO) at screening; * Fridericia-corrected QT interval (QTcF)≥450 ms (male) and≥470 ms (female) at screening; * poorly controlled hypertension (systolic blood pressure≥160 mmHg and/or diastolic blood pressure≥100 mmHg) after drug therapy at screening; 7)Dysphagia or gastrointestinal diseases or other malabsorption conditions affecting drug absorption, such as intestinal obstruction, Crohn 's disease, ulcerative colitis, short bowel syndrome, gastric emptying disorder or severe gastrointestinal related toxicity before the first dose and not recovered to less than grade 2; or confirmed to have clinically significant or acute gastrointestinal diseases; 8)Uncontrolled pleural effusion, pericardial effusion or pleural effusion requiring repeated drainage (once a month or more frequently); 9)Patients with active brain metastases or with symptoms of active central nervous system metastases including headache, vomiting and vertigo are eligible only if all of the following criteria are met, and asymptomatic patients with CNS lesions treated or untreated are eligible: • Measurable lesions located outside the CNS as determined by RECISTv1.1; * Stable brain metastases after treatment are defined as no evidence of disease progression or bleeding within 28 days before the start of treatment, and steroid hormones and other therapeutic agents are discontinued for at least 14 days before enrollment; 10)patients with interstitial pneumonia within 6 months before the first dose, or any evidence of clinically active interstitial lung disease; 11)Hyperarterial/venous thrombotic events within 6 months before the first dose, such as cerebrovascular accident (including temporary ischemic attack), deep venous thrombosis and pulmonary embolism; 12)Patients with a history of other malignant tumors (cured skin squamous cell carcinoma in situ, basal cell carcinoma and cervical carcinoma in situ that have not recurred for 5 years, unless the investigator believes that they can be enrolled; in the dose escalation stage, unless the investigator believes that they can be enrolled); 13)Patients who have a history of severe allergy, or have a history of allergy to test drugs/any excipients/combination therapy drugs, or have a history of allergy to multiple drugs; 14)Hepatitis B virus infection (HBsAg positive and DNA copy number \> 1000 IU/ml); or hepatitis C virus infection (HCV antibody positive, HCV RNA \> upper limit of normal); or human immunodeficiency virus infection (HIV antibody positive); 15)Active infection (≥ Grade 2) requiring anti-infective treatment or fever of unknown origin exceeding 38℃ within 28 days before the first dose; 16)autoimmune diseases in the active stage as judged by the investigator within 28 days prior to the first dose; 17)Any toxicity caused by previous anti-tumor treatment before the first dose has not recovered CTCAE 5.0 grade evaluation ≤ 1 (unless alopecia, grade 2 peripheral neuropathy and/or other adverse events ≤ grade 2 that do not pose a safety risk); 18)Pregnant or lactating women; 19)The investigator considers that there are any clinical or laboratory abnormalities or other reasons that make the subject unsuitable to participate in this clinical study.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Zhejiang Cancer Hospital
Hangzhou, Zhejiang, China
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