Metastatic Colorectal CancerPhase 3NCT05652894
A Study of HX008 Compared to Chemotherapy in the First-Line Treatment of Subjects With MSI-H/dMMR Metastatic Colorectal Cancer
A Phase 3 study testing HX008(Pucotenlimab) and Investigator's Choice Chemotherapy in people with Metastatic Colorectal Cancer, run by Taizhou Hanzhong biomedical co. LTD at 63 sites in China.
Trial summary
The main purpose of this study is to compare the clinical benefit, as measured by Progression-Free Survival (PFS), achieved by HX008 or Investigator's Choice Chemotherapy in participants with Microsatellite Instability High (MSI-H) or Mismatch Repair Deficient (dMMR) metastatic colorectal cancer (mCRC). Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Metastatic Colorectal Cancer
- What is being tested?
- HX008(Pucotenlimab) and Investigator's Choice Chemotherapy
- Type of treatment
- Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 190 participants
- Where
- 63 sitesChina
- Study dates
- 28 Feb 2023to 20 Oct 2028
- Phase
- Phase 3
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Voluntarily sign the Informed Consent Form(ICF), understand the study, be willing to follow and be able to complete all test procedures;
- Male or female, age ≥ 18 years on the day of signing the informed consent form;
- Histologically or cytologically confirmed adenocarcinoma of the colon or rectum, classified as Stage IV according to the AJCC (8th edition, 2017) TNM staging system for colorectal cancer;
- Confirmed MSI-H/dMMR status by the central laboratory;
- No prior systemic treatment for metastatic colorectal cancer; subjects received neoadjuvant/adjuvant therapy with disease progression should be completed > 6 months prior to the neoadjuvant/adjuvant therapy were enrolled.
- Has at least one measurable extracranial lesion (Lesions with the longest diameter ≥ 10mm, or lymph nodes with a short diameter ≥ 15mm) according to Response Evaluation Criteria in Solid Tumors Version 1.1(RECIST1.1), which has not been treated with local treatment(Lesions located in the area of previous radiation therapy can also optional if the progression is confirmed);
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- Eastern Cooperative Oncology Group (ECOG) of 0 or 1;
- Estimated life expectancy of ≥12 weeks;
- Adequate organ and hematopoietic function (no blood transfusion within 14 days prior to hematology tests, and no use of any hematopoietic growth factors or/and thrombopoietic agents within 7 days), based on the following laboratory tests (retesting is allowed only once during the screening period. If the retest results meet the inclusion criteria, the baseline values will be based on the retest results.):
- Absolute neutrophil count (ANC)≥1.5×10^9/L
- White blood cell count (WBC)≥3×10^9/L
- Platelet count (PLT)≥100×10^9/ L
- Hemoglobin (HGB)≥90 g/L
- Serum creatinine (Scr) ≤1.5×ULN
- Alanine aminotransferase (ALT) 、Aspartate aminotransferase (AST) ≤2.5× (upper limit of normal, ULN) . Patients with liver metastases require ALT and AST≤5×ULN,
- TBIL≤1.5×ULN
- International normalized ratio (INR) ≤ 2×ULN; or activated partial thromboplastin time (APTT)≤ 1.5×ULN;(except for patients on anticoagulant therapy);
- Women of childbearing age must have a negative pregnancy test within 72 hours before the first dose of trial treatment. Reproductive men and women of childbearing age are willing to take adequate contraceptive measures (such as oral contraceptives, intrauterine contraceptives, sexual abstinence, or barrier contraceptives combined with spermicide) from signing the informed consent form to 12 months after the last administration of the trial drug;
- Participants must have good compliance.
Who cannot join
- Prior systemic treatment for metastatic colorectal cancer (subjects who received neoadjuvant/adjuvant therapy with disease progression should be completed > 6 months prior to the neoadjuvant/adjuvant therapy were enrolled.)
- Subjects diagnosed with any other malignancy within 5 years prior to randomization, except for malignancies with a low risk of metastasis and death (5-year survival rate > 90%), such as adequately basal cell or squamous cell skin cancer or carcinoma in situ of the cervix and other carcinomas in situ;
- Had prior treatment with any anti-PD-1, anti-PD-L1, PD-L2, or CTLA-4 agent or any other drug targeting T cell co-stimulation or immune checkpoint pathway;
- Has active autoimmune disease (except for psoriasis), that has required systemic treatment in the past 2 years((eg, corticosteroids or immunosuppressive drugs). Except for alternative therapies (eg, thyroxine, insulin or physiological corticosteroid replacement therapy for adrenal or pituitary insufficiency);
- Need to receive systemic corticosteroids (dose equivalent to > 10 mg prednisone/day) or other immunosuppressive drugs within 14 days before enrollment or during the study period. Those under the following conditions are eligible:
- Locally external use or inhaled corticosteroids;
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- short-term (≤ 7 days) use of glucocorticoids for the prevention or treatment of nonautoimmune allergic diseases;
- Has had prior radiation therapy or has not recovered (≤ Grade 1 or at Baseline) from Adverse events(AEs) due to a previous radiation therapy;
- Has received a significant surgery, open biopsy, or severe trauma within 4 weeks prior to randomization; Definition of major surgery: the minimum of 3 weeks of post-operative recovery time is required to undergo this study, any wound-related AE must be resolved prior to randomization;
- Has severe infection within 4 weeks or active infection requiring IV infusion or oral administration of antibiotics within 2 weeks prior to randomization;
- Treatment with investigational products or devices from other clinical trials within 4 weeks prior to randomization;
- Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis or found during screening;
- Has uncontrolled ascites requiring repeated drainage, pleural effusion, or pericardial effusion;
- Has incomplete intestinal obstruction, active gastrointestinal hemorrhage, or perforation;
- Has a history or current interstitial pneumonia, or current non--infectious pneumonitis treatment with corticosteroids
- Participants with inadequately controlled cardiovascular diseases judged by the investigator as unsuitable for participation in this trial, including but not limited to: (1) NYHA Class II or above cardiac function, (2) Angina unstable;
- Subjects with active tuberculosis;
- History of human immunodeficiency virus infection, acquired or congenital immunodeficiency disease, organ transplantation, or stem cell transplantation;
- Active chronic hepatitis B or active hepatitis C. Except for hepatitis B virus carriers or those with stable disease after drug treatment, and participants with HBV DNA titer ≤ 500 IU/mL or < 2500 copies/mL are eligible. Active hepatitis C is defined as known positive hepatitis C antibody with known hepatitis C RNA quantitative results above the lower limit of detection of the analytical method;
- Known to be allergic to macromolecular protein agents or monoclonal antibodies. Known to have a history of severe allergies to any of the chemotherapy drugs in the study ;
- Alcohol dependence or drug abuse within the past 1 year;
- Has received a live vaccine within 30 days prior to the first dose of trial treatment. Subjects are permitted to receive inactivated vaccines including those for seasonal influenza, intranasal influenza vaccines are not allowed;
- Presence of other serious physical or mental illness or abnormal laboratory tests that may increase the risk of subjects in the study, or interfere with the study results, and the researchers believe that patients who are not suitable to participate in the trial for other reasons.
Trial locations and contacts
63 sites in 1 country.
63 sites in 1 country
China63 sites
Beijing Friendship Hospital, Capital Medical University
Beijing, Beijing Municipality
Cancer Hospital Chinese Academy of Medical Sciences
Beijing, Beijing Municipality
Peking Union Medical College Hospital
Beijing, Beijing Municipality
Peking University Cancer Hospital
Beijing, Beijing Municipality
Peking University First Hospital
Beijing, Beijing Municipality
The First Affiliated Hospital of Bengbu Medical University
Bengbu, Anhui
China-Japan Union Hospital of Jilin University
Changchun, Jilin
Changde First People's Hospital
Changde, Hunan
Hunan Cancer Hospital
Changsha, Hunan
The Second Xiangya Hospital of Central South University
Changsha, Hunan
Chengdu Hospital of Integrated Traditional Chinese and Western Medicine
Chengdu, Sichuan
The First Affiliated Hospital of Chengdu Medical College
Chengdu, Sichuan
Dalian University of Technology Affiliated Central Hospital (Dalian Central Hospital)
Dalian, Shenyang
The Fifth People's Hospital Of Datong
Datong, Shanxi
Deyang People's Hospital
Deyang, Sichuan
The Eighth Affiliated Hospital of Southern Medical University
Foshan, Guangdong
Liaoning Health Industry Group Fukuang General Hospital
Fushun, Liaoning
The Fifth Affiliated Hospital of Anhui Medical University
Fuyang, Anhui
Fujian Medical University Union Hospital
Fuzhou, Fujian
First Affiliated Hospital of Gannan Medical University
Ganzhou, Jiangxi
Ganzhou Municipal Hospital
Ganzhou, Jiangxi
Sun Yat-sen University Cancer Center
Guangzhou, Guangdong
The Sixth Affiliated Hospital, Sun Yat-sen University
Guangzhou, Guangdong
Guizhou Provincial People's Hospital
Guiyang, Guizhou
Second Affiliated Hospital of Zhejiang University School of Medicine
Hangzhou, Zhejiang
The First Affiliated Hospital, Zhejiang University School of Medicine
Hangzhou, Zhejiang
Anhui Provincial Cancer Hospital
Hefei, Anhui
Huai'an First People's Hospital
Huaian, Jiangsu
Cancer Hospital of Shandong First Medical University (Shandong Cancer Institute,Shandong Cancer Hospital)
Jinan, Shangdong
Qilu Hospital of Shandong University
Jinan, Shangdong
The First Affiliated Hospital of Kunming Medical University
Kunming, Yunnan
The Second Affiliated Hospital of Kunming Medical University
Kunming, Yunnan
Gansu Provincial People's Hospital
Lanzhou, Gansu
The First Affiliated Hospital of Henan University of Science and Technology
Luoyang, Henan
Meizhou People's Hospital(Huangtang Hospital)
Meizhou, Guangdong
Mianyang Central Hospital
Mianyang, Sichuan
The Second Affiliated Hospital of Nanchang University
Nanchang, Jiangxi
The Second People's Hospital of nayang City
Nanchangcun, Henan
North Sichuan Medical College Affiliated Hospital
Nanchong, Sichuan
Jiangsu Cancer Hospital
Nanjing, Jiangsu
Jiangsu Province Hospital
Nanjing, Jiangsu
Guangxi Medical University Affiliated Tumor Hospital
Nanning, Guangxi
Affiliated Qidong Hospital of Nantong University
Nantong, Jiangsu
Nanyang Central Hospital
Nanyang, Henan
Ningbo No.2 Hospital
Ningbo, Zhejiang
The Affiliated Quzhou Hospital of Wenzhou Medical University
Quzhou, Zhejiang
Fudan University Shanghai Cancer Center
Shanghai, Shanghai Municipality
Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
Shanghai, Shanghai Municipality
The First Affiliated Hospital of Shantou University Medical College
Shantou, Guangdong
General Hospital of the Northern Theater Command of the Chinese People's Liberation Army
Shenyang, Liaoning
The First Hospital of China Medical University
Shenyang, Liaoning
Suzhou Ninth People's Hospotal
Suzhou, Jiangsu
First Hospital of Shanxi Medical University
Taiyuan, Shanxi
Shanxi Provincial Cancer Hospital
Taiyuan, Shanxi
Tianjin People's Hospital
Tianjin, Tianjin Municipality
Affiliated Cancer Hospital of Xinjiang Medical University
Ürümqi, Xinjiang
Hubei Cancer Hospital
Wuhan, Hubei
Wuhan Central Hospital
Wuhan, Hubei
Second Affiliated Hospital of Xi'an Jiaotong University
Xi'an, Xi'an
The First Affiliated Hospital of Xi'an Jiaotong University
Xi'an, Xi'an
Xuzhou Central Hospital
Xuzhou, Jiangsu
Henan Cancer Hospital
Zhengzhou, Henan
The First Affiliated Hospital of Zhengzhou University
Zhengzhou, Henan
About this study
Official title: A Randomized Phase III Study of HX008 (a Humanized Monoclonal Antibody Against PD-1) Compared to Investigator's Choice Chemotherapy in the First-Line Treatment of Subjects With Microsatellite Instability-High (MSI-H)/Deficient DNA Mismatch Repair (dMMR) Metastatic Colorectal Cancer
The main purpose of this study is to compare the clinical benefit, as measured by Progression-Free Survival (PFS), achieved by HX008 or Investigator's Choice Chemotherapy in participants with Microsatellite Instability High (MSI-H) or Mismatch Repair Deficient (dMMR) metastatic colorectal cancer (mCRC).
- Conditions
- Metastatic Colorectal Cancer
- Being tested
- HX008(Pucotenlimab), Investigator's Choice Chemotherapy
- Keywords
- Colorectal Neoplasms Intestinal Neoplasms Bevacizumab Cetuximab Irinotecan Oxaliplatin Antibodies Antibodies Monoclonal Antine
- Medical subject headings
- Colorectal Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
HX008(Pucotenlimab)Drug
Drug: HX008(Pucotenlimab) 200 mg ,Q3W
Investigator's Choice ChemotherapyDrug
Drug: bevacizumab 5mg/kg given by IV every 14 days. Other Name: Avastin
Drug: cetuximab 400 mg/m2 for the first dose, then 250 mg/sqm, intravenous infusion, repeated weekly; or Cetuximab 500 mg/ sqm, intravenous infusion, D1, repeated every 2 weeks.
Other Name: Erbitux
Drug: oxaliplatin 85 mg/sqm by IV, day1. Component of mFOLFOX6.
Drug: irinotecan 180 mg/sqm by IV, day1.Component of FOLFORI.
Drug: calcium Folinate 400 mg/sqm by IV, day1.Component of mFOLFOX6 or FOLFORI.
Drug: 5-fluorouracil 400 mg/sqm, day1,followed by 2400 mg/sqm iv infusion over 46~48 h.Component of mFOLFOX6 or FOLFORI.
Drug: oxaliplatin 130 mg/sqm, intravenous infusion over 2 h ± 30 min, Day 1. Component of CAPEOX.
Drug: capecitabine 1000 mg/sqm administered orally twice daily, Days 1-14. Component of CAPEOX.
Drug: bevacizumab 7.5 mg/kg, intravenous infusion, D1, repeated every 3 weeks
| Study group | Role | What they receive |
|---|---|---|
| HX008(Pucotenlimab) | Experimental | Subjects receive HX008 200 mg intravenous (IV) every 3 weeks (Q3W) Receives: Drug: HX008(Pucotenlimab) |
| Investigator's Choice Chemotherapy | Active comparator | 1. mFOLFOX6
2. mFOLFOX6+Bevacizumab
3. mFOLFOX6+Cetuximab
4. FOLFORI
5. FOLFORI+Bevacizumab
6. FOLFORI+Cetuximab
7. CAPEOX
8. CAPEOX+ Bevacizumab Receives: Drug: Investigator's Choice Chemotherapy |
What is being measured
The primary outcome is the main question the study is designed to answer.
Progression-free Survival (PFS) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by Independent Review Committee(IRC)
PFS, defined as the time from randomization to the first documented disease progression per RECIST 1.1 assessed by IRC or death due to any cause, whichever occurs first.
Measured: 2 years
Secondary outcomes (19)
Progression-free Survival (PFS) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by Investigators
PFS, defined as the time from randomization to the first documented disease progression per RECIST 1.1 assessed by investigators or death due to any cause, whichever occurs first.
Measured: 2 years
Objective Response Rate (ORR) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by IRC or investigators
ORR, defined as the percentage of subjects achieving complete response (CR) and partial response (PR).
Measured: 2 years
Disease Control Rate (DCR) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by IRC or investigators
DCR, defined as the proportion of subjects achieving CR, PR, and Stable disease(SD) after treatment.
Measured: 2 years
Duration of Response (DOR) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by IRC or investigators
DOR, defined as the duration from the initial recording of objective disease response to the first onset of tumor progression, or death of any cause.
Measured: 2 years
Overall Survival (OS)
OS, defined as the duration from the start of treatment to death of any cause.
Measured: 2 years
Immune Progression-free Survival (iPFS)-Experimental group per iRECIST assessed by IRC/investigators
iPFS, defined as the time from randomization to the first documented disease immune progression per iRECIST assessed by IRC/investigators or death due to any cause, whichever occurs first.
Measured: 2 years
Immune Objective Response Rate (iORR)-Experimental group per iRECIST assessed by IRC/investigators
iORR, defined as the proportion of subjects with a best overall response (BOR) of immune complete response (iCR) or immune partial response (iPR) based on the immunotherapy Response Evaluation Criteria in Solid Tumors (iRECIST) by IRC/investigators.
Measured: 2 years
Immune Disease Control Rate (iDCR) -Experimental group per iRECIST assessed by IRC/investigators
response, a partial response or stable disease according to immune Response Evaluation Criteria In Solid Tumors (iRECIST) criteria by IRC/investigators over the the total number of evaluable patients.
Measured: 2 years
Immune Duration of Response (iDOR)-Experimental group per iRECIST assessed by IRC/investigators
iDOR, defined as the time from the date of the first immune response (iCR or iPR) to the date of immune confirmed progressive disease (iCPD) based on the immunotherapy Response Evaluation Criteria in Solid Tumors (iRECIST) by IRC/investigators.
Measured: 2 years
Objective tumor response rate 2 (ORR2) (crossover phase) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by investigators
ORR2, defined as proportion of subjects with best overall response of CR or PR, in progressors who continue to receive HX008 in crossover group.
Measured: 2 years
Disease Control Rate 2 (DCR 2) (crossover phase) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by investigators
DCR2, defined as the proportion of subjects achieving CR, PR, and SD after treatment who continue to receive HX008 in crossover group.
Measured: 2 years
Duration of Response 2 (DOR2) (crossover phase) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by investigators
DOR2, defined as the duration from the initial recording received HX008 in crossover group of objective disease response to the second onset of tumor progression, or death of any cause.
Measured: 2 years
Progression-free Survival 2 (PFS2) per Response Evaluation Criteria in Solid Tumors
PFS2, defined as duration of time until 2nd confirmed objective disease progression or death (or last documentation of being alive).
Measured: 2 years
Immune Objective Response Rate 2 (iORR2) (crossover phase) per iRECIST assessed by investigators
iORR2, defined as the proportion of subjects with a best overall response (BOR) of immune complete response (iCR) or immune partial response (iPR) in progressors who continue to receive HX008 in crossover group based on the immunotherapy Response Evaluation Criteria in Solid Tumors (iRECIST) by investigators.
Measured: 2 years
Immune Disease Control Rate 2 (iDCR2) (crossover phase) per iRECIST assessed by investigators
iDCR 2, defined as the percentage of patients whose best overall response is either a complete response, a partial response or stable disease who continue to receive HX008 in crossover group according to immune Response Evaluation Criteria In Solid Tumors (iRECIST) criteria by investigators over the the total number of evaluable patients.
Measured: 2 years
Immune Duration of Response 2 (iDOR2) (crossover phase) per iRECIST assessed by investigators
iDOR2, defined as the time from the date of the first immune response (iCR or iPR) to the date of immune confirmed progressive disease (iCPD) who continue to receive HX008 in crossover group based on the immunotherapy Response Evaluation Criteria in Solid Tumors (iRECIST) by investigators.
Measured: 2 years
Immune Progression-free Survival 2 (iPFS2) (crossover phase) per iRECIST assessed by investigators
iPFS2, defined as duration of time until 2nd confirmed objective disease progression or death (or last documentation of being alive) who continue to receive HX008 in crossover group based on the immunotherapy Response Evaluation Criteria in Solid Tumors (iRECIST) by investigators.
Measured: 2 years
Safety: AEs, laboratory test parameters, etc.
Measured: 2 years
Quality of life assessment
Measured: 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Dec 2022
- Study start28 Feb 2023
- Primary completion30 Jun 2026 (estimated)
- Study completion20 Oct 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Metastatic Colorectal CancerStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 190 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Taizhou Hanzhong biomedical co. LTD
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05652894
- Sponsor's protocol ID
- HX008-III-CRC-01
- Status last verified
- May 2026
- First submitted
- 26 Nov 2022
- Last updated
- 14 May 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 14 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized Phase III Study of HX008 (a Humanized Monoclonal Antibody Against PD-1) Compared to Investigator's Choice Chemotherapy in the First-Line Treatment of Subjects With Microsatellite Instability-High (MSI-H)/Deficient DNA Mismatch Repair (dMMR) Metastatic Colorectal Cancer
- ClinicalTrials.gov ID
- NCT05652894
- Acronym / sponsor ID
- HX008-III-CRC-01
- Conditions
- Metastatic Colorectal Cancer
- Keywords
- Colorectal Neoplasms Intestinal Neoplasms Bevacizumab Cetuximab Irinotecan Oxaliplatin Antibodies Antibodies Monoclonal Antine
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 190 participants (estimated)
- Lead sponsor
- Taizhou Hanzhong biomedical co. LTDIndustry (pharma, biotech, devices)
- Study start
- 28 Feb 2023 (actual)
- Primary completion
- 30 Jun 2026 (estimated)
- Study completion
- 20 Oct 2028 (estimated)
- First posted
- 15 Dec 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The main purpose of this study is to compare the clinical benefit, as measured by Progression-Free Survival (PFS), achieved by HX008 or Investigator's Choice Chemotherapy in participants with Microsatellite Instability High (MSI-H) or Mismatch Repair Deficient (dMMR) metastatic colorectal cancer (mCRC).
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| HX008(Pucotenlimab) | Experimental | Drug: HX008(Pucotenlimab)Subjects receive HX008 200 mg intravenous (IV) every 3 weeks (Q3W) |
| Investigator's Choice Chemotherapy | Active comparator | Drug: Investigator's Choice Chemotherapy1. mFOLFOX6 2. mFOLFOX6+Bevacizumab 3. mFOLFOX6+Cetuximab 4. FOLFORI 5. FOLFORI+Bevacizumab 6. FOLFORI+Cetuximab 7. CAPEOX 8. CAPEOX+ Bevacizumab |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (19 listed)
- Voluntarily sign the Informed Consent Form(ICF), understand the study, be willing to follow and be able to complete all test procedures;
- Male or female, age ≥ 18 years on the day of signing the informed consent form;
- Histologically or cytologically confirmed adenocarcinoma of the colon or rectum, classified as Stage IV according to the AJCC (8th edition, 2017) TNM staging system for colorectal cancer;
- Confirmed MSI-H/dMMR status by the central laboratory;
- No prior systemic treatment for metastatic colorectal cancer; subjects received neoadjuvant/adjuvant therapy with disease progression should be completed > 6 months prior to the neoadjuvant/adjuvant therapy were enrolled.
Key exclusion criteria (23 listed)
- Prior systemic treatment for metastatic colorectal cancer (subjects who received neoadjuvant/adjuvant therapy with disease progression should be completed > 6 months prior to the neoadjuvant/adjuvant therapy were enrolled.)
- Subjects diagnosed with any other malignancy within 5 years prior to randomization, except for malignancies with a low risk of metastasis and death (5-year survival rate > 90%), such as adequately basal cell or squamous cell skin cancer or carcinoma in situ of the cervix and other carcinomas in situ;
- Had prior treatment with any anti-PD-1, anti-PD-L1, PD-L2, or CTLA-4 agent or any other drug targeting T cell co-stimulation or immune checkpoint pathway;
- Has active autoimmune disease (except for psoriasis), that has required systemic treatment in the past 2 years((eg, corticosteroids or immunosuppressive drugs). Except for alternative therapies (eg, thyroxine, insulin or physiological corticosteroid replacement therapy for adrenal or pituitary insufficiency);
- Need to receive systemic corticosteroids (dose equivalent to > 10 mg prednisone/day) or other immunosuppressive drugs within 14 days before enrollment or during the study period. Those under the following conditions are eligible:
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| HX008(Pucotenlimab)Drug: HX008(Pucotenlimab) 200 mg ,Q3W | Drug | HX008(Pucotenlimab) |
| Investigator's Choice ChemotherapyDrug: bevacizumab 5mg/kg given by IV every 14 days. Other Name: Avastin Drug: cetuximab 400 mg/m2 for the first dose, then 250 mg/sqm, intravenous infusion, repeated weekly; or Cetuximab 500 mg/ sqm, intravenous infusion, D1, repeated every 2 weeks. Other Name: Erbitux Drug: oxaliplatin 85 mg/sqm by IV, day1. Component of mFOLFOX6. Drug: irinotecan 180 mg/sqm by IV, day1.Component of FOLFORI. Drug: calcium Folinate 400 mg/sqm by IV, day1.Component of mFOLFOX6 or FOLFORI. Drug: 5-fluorouracil 400 mg/sqm, day1,followed by 2400 mg/sqm iv infusion over 46~48 h.Component of mFOLFOX6 or FOLFORI. Drug: oxaliplatin 130 mg/sqm, intravenous infusion over 2 h ± 30 min, Day 1. Component of CAPEOX. Drug: capecitabine 1000 mg/sqm administered orally twice daily, Days 1-14. Component of CAPEOX. Drug: bevacizumab 7.5 mg/kg, intravenous infusion, D1, repeated every 3 weeks | Drug | Investigator's Choice Chemotherapy |
Primary outcome
Progression-free Survival (PFS) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by Independent Review Committee(IRC)
Time frame: 2 years
PFS, defined as the time from randomization to the first documented disease progression per RECIST 1.1 assessed by IRC or death due to any cause, whichever occurs first.
19 secondary outcomes
Progression-free Survival (PFS) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by Investigators
Time frame: 2 years
Objective Response Rate (ORR) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by IRC or investigators
Time frame: 2 years
Disease Control Rate (DCR) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by IRC or investigators
Time frame: 2 years
Duration of Response (DOR) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by IRC or investigators
Time frame: 2 years
Overall Survival (OS)
Time frame: 2 years
Immune Progression-free Survival (iPFS)-Experimental group per iRECIST assessed by IRC/investigators
Time frame: 2 years
Immune Objective Response Rate (iORR)-Experimental group per iRECIST assessed by IRC/investigators
Time frame: 2 years
Immune Disease Control Rate (iDCR) -Experimental group per iRECIST assessed by IRC/investigators
Time frame: 2 years
Immune Duration of Response (iDOR)-Experimental group per iRECIST assessed by IRC/investigators
Time frame: 2 years
Objective tumor response rate 2 (ORR2) (crossover phase) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by investigators
Time frame: 2 years
Disease Control Rate 2 (DCR 2) (crossover phase) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by investigators
Time frame: 2 years
Duration of Response 2 (DOR2) (crossover phase) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by investigators
Time frame: 2 years
Progression-free Survival 2 (PFS2) per Response Evaluation Criteria in Solid Tumors
Time frame: 2 years
Immune Objective Response Rate 2 (iORR2) (crossover phase) per iRECIST assessed by investigators
Time frame: 2 years
Immune Disease Control Rate 2 (iDCR2) (crossover phase) per iRECIST assessed by investigators
Time frame: 2 years
Immune Duration of Response 2 (iDOR2) (crossover phase) per iRECIST assessed by investigators
Time frame: 2 years
Immune Progression-free Survival 2 (iPFS2) (crossover phase) per iRECIST assessed by investigators
Time frame: 2 years
Safety: AEs, laboratory test parameters, etc.
Time frame: 2 years
Quality of life assessment
Time frame: 2 years
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 May 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
63 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing HX008(Pucotenlimab) and Investigator's Choice Chemotherapy in people with Metastatic Colorectal Cancer, run by Taizhou Hanzhong biomedical co. LTD at 63 sites in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 19 inclusion and 23 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 14 May 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 63 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Progression-free Survival (PFS) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by Independent Review Committee(IRC) (time frame: 2 years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 May 2026.