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OPTIMOX-aflibercept as First-line Therapy in Patients With Unresectable Metastatic Colorectal Cancer (VELVET)

G

GERCOR - Multidisciplinary Oncology Cooperative Group

Status and phase

Completed
Phase 2

Conditions

Unresectable Metastatic Colorectal Cancer

Treatments

Biological: aflibercept

Study type

Interventional

Funder types

Other
Industry

Identifiers

NCT01802684
VELVET C12-1
2012-003521-25 (EudraCT Number)

Details and patient eligibility

About

Evaluation of feasibility of adding aflibercept to an oxaliplatin-based regimen rather than a continuous administration of chemotherapy until progression, in order to decrease the risk of severe toxicities.

Full description

The addition of aflibercept to the standard FOLFIRI regimen as second-line therapy was evaluated in a large phase III study (EFC10262-VELOUR). This new combination significantly improved both PFS (4.7 to 6.9 months, HR=0.76; P=.00007) and OS (12.1 to 13.5 months, HR=0.82; P=.0032). In the evaluable population (86.5%), the tumor response rate was also improved when adding aflibercept (ORR=19.8% [16.4-23.2]) to the FOLFIRI regimen (ORR=11.1% [8.5-13.8]).

This trial will evaluate the feasibility of adding aflibercept to an oxaliplatin-based regimen as a first-line therapy , using the OPTIMOX strategy rather than a continuous administration of chemotherapy until progression, in order to decrease the risk of severe toxicities.

Enrollment

49 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  1. Signed and dated informed consent, and willing and able to comply with protocol requirements,
  2. Histologically proven adenocarcinoma of the colon and/or rectum,
  3. Metastatic disease confirmed,
  4. No prior therapy for metastatic disease (in case of previous adjuvant therapy, interval from end of chemotherapy to relapse must be >6 months for fluoropyrimidine alone or >12 months for oxaliplatin-based, bevacizumab-based, cetuximab-based therapy,
  5. Duly documented inoperable metastatic disease, ie not suitable for complete carcinological surgical resection,
  6. At least one measurable or evaluable lesion as assessed by CT-scan or MRI (Magnetic Resonance Imaging) according to RECIST v1.1,
  7. Age ≥18 years,
  8. ECOG Performance status (PS) 0-2,
  9. Hematological status: neutrophils (ANC) ≥1.5x109/L; platelets ≥100x109/L; haemoglobin ≥9g/dL,
  10. Adequate renal function: serum creatinine level <150µM,
  11. Adequate liver function: serum bilirubin ≤3 x upper normal limit (ULN), alkaline phosphatase <5xULN,
  12. Proteinuria <2+ (dipstick urinalysis) or ≤1g/24hour,
  13. Baseline evaluations: clinical and blood evaluations performed no more than 2 weeks (14 days) prior to confirmation of eligibility, tumor assessment (chest X ray, CT-scan or MRI, evaluation of non-measurable lesions) no more than 3 weeks (21 days) prior to confirmation of eligibility,
  14. For female patients of childbearing potential, negative serum or urine pregnancy test within 1 week (7 days) prior of starting study treatment,
  15. Female patients of childbearing potential must commit to using reliable and effective methods of contraception during the trial and until at least six months after the end of study treatment. Females are neither pregnant nor in breastfeeding. Male patients with a partner of childbearing potential must agree to use effective contraception in addition to the contraceptive method used by their partner during the trial and until at least six months after the end of study treatment.
  16. Registration in a national health care system (CMU included for France).

Exclusion criteria

  1. History or evidence upon physical examination of CNS metastasis unless adequately treated (e.g. non irradiated CNS metastasis, seizure not controlled with standard medical therapy),
  2. Exclusive bone metastasis,
  3. Uncontrolled hypercalcemia,
  4. Pre-existing permanent neuropathy (NCI grade ≥2),
  5. Uncontrolled hypertension (defined as systolic blood pressure >150 mmHg and/or diastolic blood pressure >100 mmHg despite optimal medical therapy), or history of hypertensive crisis, or hypertensive encephalopathy,
  6. Concomitant unplanned antitumor therapy (e.g. chemotherapy, molecular targeted therapy, immunotherapy/ radio-immunotherapy),
  7. Treatment with any other investigational medicinal product within 28 days prior to study entry,
  8. Other serious and uncontrolled non-malignant disease,
  9. Other concomitant or previous malignancy, except: i/ adequately treated in-situ carcinoma of the uterine cervix, ii/ basal or squamous cell carcinoma of the skin, iii/ cancer in complete remission for >5 years,
  10. Any other serious and uncontrolled non-malignant disease, major surgery or traumatic injury within the last 28 days
  11. Patients with known allergy to any excipient to study drugs,
  12. History of myocardial infarction and/or stroke within 6 months prior to study entry,
  13. Bowel obstruction.

Trial design

Primary purpose

Treatment

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

49 participants in 1 patient group

OPTIMOX-aflibercept
Experimental group
Description:
Induction therapy (sequence #1) * Regimen : aflibercept + modified FOLFOX7 * Duration : 6 cycles (3 months) Maintenance after induction (sequence #2) First phase (sequence #2A) * Regimen : aflibercept + fluoropyrimidine (simplifed LV5FU2 or capecitabine) * Duration : 6 cycles (3 months) Second phase (sequence #2B) * Regimen : aflibercept +/- fluoropyrimidine (simplifed LV5FU2 or capecitabine) according to eligibility criteria for chemotherapy-free interval) * Duration : until PD or limiting toxicity Reintroduction (sequence #3) * Regimen : aflibercept + modified FOLFOX7 * Duration : 6 cycles (3 months) Maintenance after reintroduction (sequence #4) * Regimen : aflibercept + fluoropyrimidine * Duration : until PD or limiting toxicity
Treatment:
Biological: aflibercept

Trial contacts and locations

8

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Data sourced from clinicaltrials.gov

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