A Prospective, Multicenter, Open, Randomized Controlled Phase II Clinical Study Evaluating Recombinant Oncolytic HSV2(OH2)Therapeutic Injecta(Vero Cell) for Human Use(rHSV2hGM-CSF) in Combination With Capecitabine for First-line Maintenance Therapy in Advanced Colorectal Cancer
Overview
- Phase
- Phase 2
- Intervention
- OH2
- Conditions
- Advanced Colorectal Carcinoma
- Sponsor
- Binhui Biopharmaceutical Co., Ltd.
- Enrollment
- 7
- Locations
- 1
- Primary Endpoint
- Progression-free survival
- Status
- Terminated
- Last Updated
- 2 years ago
Overview
Brief Summary
This is a prospective, multicenter, open, randomized controlled Phase II clinical study to evaluate the efficacy and safety of intratumoral injection of OH2 combined with capecitabine for first-line maintenance of advanced colorectal cancer.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Age 18 to 75 years old (including boundary values), male or female;
- •Patients with advanced colorectal adenocarcinoma (Stage IV) with a definite histological or cytological diagnosis;
- •Partial response (PR) or stable disease (SD) was evaluated in advanced colorectal cancer patients after 16 to 24 weeks of first-line treatment with fluorouracil-based chemotherapy combined with or without targeted drugs, and before the last chemotherapy to trial drug administration;
- •The physical status score of the Eastern Oncology Consortium (ECOG) was 0\~1;
- •Have at least one measurable or evaluable lesion according to RECIST 1.1;
- •There are lesions suitable for intratumoral injection;
- •At least 2 weeks and no more than 4 weeks after the end of the last first-line chemotherapy;
- •Expected survival ≥12 weeks;
- •Patients with asymptomatic BMS after treatment who are free of disease progression by computed tomography (CT) or magnetic resonance imaging (MRI), stable for at least 12 weeks and without steroid medication for at least 4 weeks;
- •Laboratory examination (no blood transfusion or use of blood products, no correction therapy with granulocyte colony stimulating factor or other hematopoietic stimulating factor within 14 days prior to the first dose) :
Exclusion Criteria
- •Patients who plan to undergo radical excision of metastatic lesions;
- •Unrelieved intestinal obstruction or malabsorption syndrome;
- •Adverse reactions caused by first-line chemotherapy drugs did not recover to ≤ grade 1 before randomization (except hair loss and peripheral neurotoxicity less than or equal to grade 2);
- •Cardiovascular disease meets one of the following criteria: Congestive heart failure with ≥NYHA Level III heart function; Severe arrhythmias requiring medical treatment; Acute myocardial infarction, severe or unstable angina, coronary or peripheral artery bypass grafting, or stenting within 6 months prior to initial administration; Left ventricular ejection fraction (LVEF) \<50%; Adjusted QTc interval (Fridericia formula correction) \>450 ms for men and \>470 ms for women, or risk factors for tip twisting ventricular tachycardia such as clinically significant hypokalemia as determined by the investigator, a family history of long QT syndrome, or a family history of arrhythmia (such as pre-excited syndrome); High blood pressure that is not effectively controlled;
- •Patients had active infection or unexplained fever \>38.5℃ during screening or before initial administration;
- •Patients with congenital or acquired immune deficiency (such as HIV infection), syphilis antibody positive and syphilis rapid plasma reactin-positive, active hepatitis (hepatitis B: HBsAg positive and HBV DNA≥2000 IU/mL; Hepatitis C: HCV antibody positive and HCV virus copy number \> upper limit of normal);
- •Had received or was receiving or still required to receive other experimental agents or antiviral therapy within 4 weeks before randomization (hepatitis B patients were treated with entecavir, tenofovir fumarate dipifurofurl, adefovir dipivoxil sustainably);
- •Participated in other clinical studies within 4 weeks prior to randomization;
- •Known to be allergic to the test drug or its active ingredients or excipients, or severely allergic;
- •A known history of psychotropic substance abuse, alcohol or drug abuse;
Arms & Interventions
OH2+Capecitabine
OH2: 10\^7 CCID50/mL intratumoral injection, once every 2 weeks; Capecitabine: 1000 mg/m2, orally administered twice a day, D1 to D14, repeated every 3 weeks
Intervention: OH2
OH2+Capecitabine
OH2: 10\^7 CCID50/mL intratumoral injection, once every 2 weeks; Capecitabine: 1000 mg/m2, orally administered twice a day, D1 to D14, repeated every 3 weeks
Intervention: Capecitabine
Capecitabine/Capecitabine+Bevacizumab
Capecitabine: 1000 mg/m2, orally administered twice a day, D1 to D14, repeated every 3 weeks Bevacizumab: 7.5 mg/kg, intravenously, once every 3 weeks.
Intervention: Capecitabine
Capecitabine/Capecitabine+Bevacizumab
Capecitabine: 1000 mg/m2, orally administered twice a day, D1 to D14, repeated every 3 weeks Bevacizumab: 7.5 mg/kg, intravenously, once every 3 weeks.
Intervention: Bevacizumab
Outcomes
Primary Outcomes
Progression-free survival
Time Frame: 2 years
Time after treatment to clinical and radiographic disease progression will be evaluated.
Secondary Outcomes
- Durable response rate (DRR)(2 years)
- Objective response rate (ORR)(2 years)
- Disease control rate (DCR)(2 years)
- Toxicity by CTCAE v5.0(2 years)
- Overall survival (OS)(2 years)
- Duration of response (DoR)(2 years)
- Immune-progression-free survival (iPFS)(2 years)