RALOX or CAPOX + Bevacizumab in the First-line Treatment of Advanced CRC(ROCB Study)

NCT ID: NCT03813641

Last Updated: 2019-09-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE2

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-01-28

Study Completion Date

2021-12-31

Brief Summary

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Raltitrexed is an inhibitor of thymidylate synthase.As a folate antimetabolite drug, raltitrexed has been used in treatment of colorectal cancer(CRC) since 1998, and also used in malignant mesothelioma.Several phase III studies performed in patients with advanced CRC showed that it is as effective as 5-fluorouracil(5-FU) /leucovorin(LV) with regard to response rates and survival. The combination of raltitrexed with oxaliplatin shows response rates of 41%-54% and median survivals of 14.6-14.8 months, which are comparable to those achieved with 5-FU/LV combination with oxaliplatin. This study discussed the efficacy and safety of raltitrexed-oxaliplatin(RALOX) combined with bevacizumab or capecitabine-oxaliplatin(CAPOX) combined with bevacizumab in first-line treatment of patients with advanced colorectal cancer who could not undergo radical surgery. The main endpoint will be progression free survival (PFS). The secondary endpoints will be overall survival, objective response rate and disease control rate (OS,ORR and DCR).It is expected that raltitrexed may be one of options for the treatment of advanced CRC in the first-line setting.

Detailed Description

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According to the inclusion and exclusion criteria, the patients will be randomly divided into two groups: the experimental group (group A) will be administered with raltitrexed 3mg/m2 intravenously combined with oxaliplatin and bevacizumab, repeated every 21 days. The control group (group B) will be administered with orally capecitabine (1000mg/m2, d 1-14) combined with oxaliplatin and bevacizumab, repeated every 21 days. After 8 cycles of treatments, if evaluated as complete response(CR),partial response(PR) or stable disease(SD), CRC patients will go into maintenance therapy wtih raltitrexed combined with bevacizumab in group A or capecitabine combined with bevacizumab in group B respectively, ended in disease progression(PD) , symptoms deterioration, unacceptable toxicity, death or withdrawal of consent (whichever occurs first). The radiological efficacy will be evaluated every 6 weeks (2 treatment cycles) and non-PD (PD criteria referring to RECIST 1.1 criteria) patients will continue to be treated until the cancer progression or the patient's intolerable toxicity or death. Toxic side effects and quality of life will be assessed at the same time.

Follow up participants and analyse primary endpoint (PFS) and secondary endpoints (OS,ORR and DCR).The causes of confirmed missing data in the trial should be recorded in detail to determine the mechanism of missing data and choose the suitable missing data handling methods.

Conditions

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Colorectal Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Randomized controlled trial
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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RALOX + bevacizumab

Oxaliplatin 130mg/m2, i.v.gtt 2h, d1 Raltitrexed 3mg/m2, i.v.gtt 15min ,d1 Bevacizumab 7.5mg/kg, i.v.gtt, d1 The above schemes are repeated every three weeks. After 8 cycles, such as CR, PR or SD, the regimen is changed to raltitrexed (3mg/m2, intravenous drip for 15 minutes, d1)+bevacizumab (7.5mg/kg, intravenous drip, d1). The regimen is repeated every 3 weeks until the disease progresses.

Group Type EXPERIMENTAL

Raltitrexed

Intervention Type DRUG

Experimental: Oxaliplatin + Raltitrexed + Bevacizumab The above schemes are repeated every three weeks. After 8 cycles, such as CR, PR or SD, the regimen is changed to Raltitrexed (3mg/m2, intravenous drip for 15 minutes, d1)+bevacizumab (7.5mg/kg, intravenous drip, d1). The regimen is repeated every 3 weeks until the disease progresses.

CAPOX + bevacizumab

Oxaliplatin 130mg/m2, i.v.gtt 2h, d1 Capecitabine 1000mg/m2, po. ,d1 Bevacizumab 7.5mg/kg, i.v.gtt, d1 The above schemes are repeated every three weeks. After 8 cycles, such as CR, PR or SD, the regimen is changed to Capecitabine (1000mg/m2 po. d1-14)+bevacizumab (7.5mg/kg, intravenous drip, d1). The regimen is repeated every 3 weeks until the disease progresses.

Group Type ACTIVE_COMPARATOR

Capecitabine

Intervention Type DRUG

Other: Oxaliplatin + Capecitabine + Bevacizumab The above schemes are repeated every three weeks. After 8 cycles, such as CR, PR or SD, the regimen is changed to Capecitabine (1000mg/m2 po. d1-14)+bevacizumab (7.5mg/kg, intravenous drip, d1). The regimen is repeated every 3 weeks until the disease progresses.

Interventions

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Raltitrexed

Experimental: Oxaliplatin + Raltitrexed + Bevacizumab The above schemes are repeated every three weeks. After 8 cycles, such as CR, PR or SD, the regimen is changed to Raltitrexed (3mg/m2, intravenous drip for 15 minutes, d1)+bevacizumab (7.5mg/kg, intravenous drip, d1). The regimen is repeated every 3 weeks until the disease progresses.

Intervention Type DRUG

Capecitabine

Other: Oxaliplatin + Capecitabine + Bevacizumab The above schemes are repeated every three weeks. After 8 cycles, such as CR, PR or SD, the regimen is changed to Capecitabine (1000mg/m2 po. d1-14)+bevacizumab (7.5mg/kg, intravenous drip, d1). The regimen is repeated every 3 weeks until the disease progresses.

Intervention Type DRUG

Other Intervention Names

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Tomudex Xeloda

Eligibility Criteria

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Inclusion Criteria

* Age 18\~75 years;
* Patients are diagnosed by histopathological and/or cytological examination as local advanced or metastatic colorectal cancer who are unable to undergo radical surgery with no symptom of the primary lesions;
* There are one or more measurable lesions, the longest diameter of which is at least 10 mm by spiral CT scanning (RECIST standard, version 1.1)
* ECOG performance status (ECOG PS) 0\~1;
* Life expectancy not less than 3 month
* Blood routine, liver and kidney function reached the following criteria within 14 days before screening:

Absolute neutrophil count (\> 1.5x109/L); hemoglobin (\> 9.0 g/dl); platelet count (\> 100 x109/L); total bilirubin (\< 1.5 times the normal upper limit (ULN); alanine aminotransferase and glutamic oxaloacetate aminotransferase (\< 2.5 x ULN) in patients with liver metastasis (\< 5 x ULN); alkaline phosphatase (\< 3 x ULN( in patients with liver metastasis \< 5 x ULN)); serum creatinine (\< 1.5 x ULN);

* Adequate blood coagulation function \[International Normalized Ratio (INR) ≤1.5 and Partial Thromboplastin Time (PTT) or activated PTT (aPTT) ≤1.5 x upper limit of normal (ULN)). Participants on full-dose anticoagulation must be in a stable phase of anticoagulant therapy and if taking oral anticoagulation, participants must have an INR ≤3 without clinically significant active bleeding or a high risk of bleeding.
* Agree to provide histological specimens from previous operations for biomarker assessment and specimens remain。
* Signed informed consent to be provided

Exclusion Criteria

* Previous treatment with Raltitrexed;
* With a large amount of pleural effusions or ascites requiring puncture drainage;
* Active clinical severe infections include hepatitis;
* One of the following complications: 1) Gastrointestinal obstruction (including paralytic ileus) or gastrointestinal bleeding 2) Symptomatic cardiac disease (including unstable angina, myocardial infarction, and heart failure) 3) Pulmonary fibrosis or interstitial pneumonia 4) Uncontrolled diabetes mellitus 5) Uncontrolled diarrhea (that affects daily activities although adequate therapy )
* Symptomatic brain or meningeal metastasis (unless the patient has been treated for \> 6 months, the imaging results are negative in the 4 weeks before entering the study, and the clinical symptoms associated with the tumor are stable at the time of entering the study);
* Undergoing kidney dialysis;
* History of other malignant tumors within 5 years, except for cured cervical carcinoma in situ or basal cell carcinoma of the skin;
* Drug abuse and medical, psychological or social conditions may interfere with patients' participation in the study or have an impact on the evaluation of the study results;
* Pregnant or lactating females, and males and females reluctant to use contraception
* History of concurrent gastrointestinal perforation or gastrointestinal perforation within 1 year prior to enrollment
* Pulmonary hemorrhage/hemoptysis ≥ Grade 2 (identified as bright red blood of not less 2.5mL) within 1 month before enrollment.
* History of thoracotomy,laparotomy, or intestinal resection within 28 days prior to enrollment;
* Unhealed wound (other than suture wounds due to implantation of a central venous port), traumatic fracture, or gastrointestinal ulcer
* Current cerebrovascular disease or thromboembolism or either within 1 year before enrollment
* Current anticoagulation therapy or requiring anticoagulation agents (\> 325 mg/day of aspirin)
* Bleeding diathesis, coagulopathy, or coagulation factor abnormality (INR ≥1.5 within 14 days before enrollment)
* Uncontrolled hypertension
* Urine dipstick for proteinuria \>+2
* Researchers think those should be excluded
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Shenzhen People's Hospital

OTHER

Sponsor Role lead

Responsible Party

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Ruilian Xu

Phase Ⅱ Clinical Study of RALOX or CAPOX Combined With Bevacizumab in the First-line Treatment of Advanced Colorectal Cancer

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Ruilian Xu, MD

Role: PRINCIPAL_INVESTIGATOR

Shen Zhen People's Hospital

Locations

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Shenzhen People's Hospital

Shenzhen, Guangdong, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Ruilian Xu, MD

Role: CONTACT

+8675522942497

Wan He, MD,phD

Role: CONTACT

+8675522942411

Facility Contacts

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Ruilian Xu, MD

Role: primary

+8675522942497

Wan He, MD,PhD

Role: backup

+8675522942449

References

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Other Identifiers

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Shenzhen CRC-002

Identifier Type: -

Identifier Source: org_study_id

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