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Unresectable Metastatic Colorectal CancerPhase 3PHARBEVACOLNCT06642844

Bevacizumab-based Chemotherapy Adapted to Bevacizumab Pharmacokinetics in 1st-line Treatment

A Phase 3 study testing Avastin, 25 Mg/mL Intravenous Solution in people with Unresectable Metastatic Colorectal Cancer, run by University Hospital, Tours at 4 sites in France.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Bevacizumab is a standard drug for metastatic colorectal cancer (mCRC) in combination with cytotoxic chemotherapy. However, inter-individual pharmacokinetic variability was observed for bevacizumab and an exposure-response relationship for efficacy was described for bevacizumab in mCRC patients treated with 1st-line… Read more about this study

Who is it for?
Ages 18 to 99 years
What is being tested?
Avastin, 25 Mg/mL Intravenous Solution
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
244 participants
Where
4 sitesFrance
Study dates
4 Mar 2025to 4 Mar 2029
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 to 99 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients aged ≥18 years.
  • Histologically proven metastatic colorectal adenocarcinoma (on primary tumor and/or metastases) inoperable, well documented, i.e. not compatible with complete oncological resection at inclusion.
  • For whom treatment with bevacizumab is indicated.
  • For women of childbearing age: effective contraception.
  • ECOG Performance status (PS) 0-2.
  • No prior treatment of metastatic disease (in the case of adjuvant treatment, interval between the end of chemotherapy and relapse > 6 months if fluoropyrimidine alone or > 12 months if FOLFOX).
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  • At least one evaluable or measurable lesion assessed by computed tomography (CT) according to RECIST v1.1 criteria.
  • Life expectancy greater than 3 months.
  • Adequate hematological, renal and hepatic biological parameters: neutrophils ≥ 1.5x109/L; platelets ≥ 100x109/L; hemoglobin ≥ 9 g/dL; serum creatinine <150 μmol/L; bilirubinemia ≤ 1.5 x upper limit of normal (ULN), alkaline phosphatase < 5xULN; proteinuria < 2+ (urine dipstick) or ≤ 1 g/24h.
  • Written informed consent signed by the patient.
  • Patient affiliated to a French social security system.
  • Randomization criteria in the experimental phase:
  • Serum concentration of bevacizumab on D14 ≤ 15.5 mg/L (measured just before the 2nd infusion of bevacizumab).

Who cannot join

  • Less than 6 months from the end of any prior chemotherapy, radiotherapy or adjuvant surgery.
  • Patient with a known non-indication or contraindication to first-line chemotherapy based on bevacizumab.
  • Cardiovascular contraindication to the prescription of bevacizumab: heart failure, cardiovascular event within 6 months, NYHA ≥ 2 (New York Heart Association), poorly controlled arterial hypertension, history of hypertensive crisis or hypertensive encephalopathy; Grade 3/4 anterior venous thromboembolism (NCI-CTCAE)
  • Inadequate hematological, hepatic and renal function
  • Urine test strip for proteinuria ≥ 2+ unless proteinuria < 1 g / 24 hours is demonstrated.
  • Current or recent (within 10 days of study enrollment) use of aspirin (>325 mg/day) or clopidogrel (>75 mg/day).
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  • Current or recent use (within 10 days before the first dose of bevacizumab) of oral or parenteral therapeutic anticoagulants or thrombolytic agents for therapeutic purposes.
  • Untreated CNS metastases or treatment of brain metastases, either by surgical or radiological techniques, must have been completed more than 4 weeks before the first study treatment.
  • Surgical procedure (including open biopsy, surgical resection, wound revision, or other major surgery involving entry into a body cavity) or significant traumatic injury within 28 days prior to study enrollment or anticipation of study need for major surgery during the study.
  • Serious non-healing wound, active ulcer or untreated bone fracture.
  • Other neoplasias (previous or current), except:
  • i/ carcinoma in situ of the cervix adequately treated,
  • ii/ basal cell or squamous cell carcinoma of the skin,
  • iii/ cancer in complete remission for more than 5 years.
  • Other illnesses, which, according to the doctor, are life-threatening to the patient and/or which are uncontrolled.
  • Primary tumor in place and symptomatic (occlusion, hemorrhage).
  • Pregnant or breastfeeding women.
  • Patients unable to give consent.
  • Patients under guardianship, curatorship or legal protection.

Trial locations and contacts

4 sites in 1 country. Contact the study team or a site near you to ask about taking part.

France4 sites, 4 recruiting
  • BORG

    Besançon

    CHRISTOPHE BORG

    Recruiting
  • Caroline Petorin

    Clermont-Ferrand

    Not yet recruiting
  • Ducreux

    Gustave Roussy

    DUVREUX MICHEL

    Not yet recruiting
  • David Tougeron

    Poitiers

    DAVID TOUGERON

    Recruiting

Other trials in France

About this study

Official title: Bevacizumab-based Chemotherapy Tailored to the Pharmacokinetics of Bevacizumab in First-line Treatment of Unresectable Metastatic Colorectal Cancer: a Randomized, Multicenter, Double-blind Phase 3 Study

Bevacizumab is a standard drug for metastatic colorectal cancer (mCRC) in combination with cytotoxic chemotherapy. However, inter-individual pharmacokinetic variability was observed for bevacizumab and an exposure-response relationship for efficacy was described for bevacizumab in mCRC patients treated with 1st-line bevacizumab-based chemotherapy.

Read the detailed description

The primary objective is to evaluate the effect of doubling the dose of bevacizumab in mCRC patients whose initial serum bevacizumab concentration is ≤15.5 mg/L on progression-free survival (PFS).

This project is a multicenter, double-blind, randomized trial in two parallel groups.

The primary endpoint is progression-free survival (PFS)

Being tested
Avastin, 25 Mg/mL Intravenous Solution

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Avastin, 25 Mg/mL Intravenous SolutionDrug

    Also called Experimental group, Control group

    Experimental group/ Patients randomized to the experimental group of the trial will receive bevacizumab as an IV infusion at a dose of 10 mg/kg, administered in 2 preparations of 5 mg/kg, every 2 weeks. Patients will receive treatment until progression, patient refusal, or unacceptable toxicity.

    Control group: Patients randomized to the control group of the trial will receive bevacizumab at a dose of 5 mg/kg and placebo (NaCl) every two weeks. Patients will receive treatment until progression, patient refusal, or unacceptable toxicity.

Study groups in NCT06642844
Study groupRoleWhat they receive
Experimental: Group AExperimentalPatients randomized to the experimental group of the trial will receive bevacizumab as an IV infusion at a dose of 10 mg/kg, administered in 2 preparations of 5 mg/kg, every 2 weeks. Patients will receive treatment until progression, patient refusal, or unacceptable toxicity.
Receives: Drug: Avastin, 25 Mg/mL Intravenous Solution
Active comparator: Group BActive comparatorPatients randomized to the control group of the trial will receive bevacizumab at a dose of 5 mg/kg and placebo (NaCl) every two weeks. Patients will receive treatment until progression, patient refusal, or unacceptable toxicity.
Receives: Drug: Avastin, 25 Mg/mL Intravenous Solution

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The primary endpoint is progression-free survival (PFS)

    The SS was defined as the time interval for randomized patients between the date of start of treatment and date of first clinical and/or radiological progression or death whatever the cause, in depending on what survives first.of first clinical and/or radiological progression or death whatever the cause, in depending on what survives first.progression (PD) per RECIST 1.1 or death due to any cause, whichever occurs first. A patient alive without progression will be censored on the date from the last follow-up visit.

    Measured: up to death

Secondary outcomes (8)
  1. Safety profile

    Number of Participants Who Experienced an Adverse Event (AE) per NCI-CATCAE5.0 classification

    Measured: Up to approximately 10 months

  2. Overall Survival (OS)

    OS was defined as the time from randomization to death due to any cause. Participants without documented death at the time of analysis were censored at the date of last known contact.

    Measured: Up to approximately 25 months

  3. Best Overall Response Rate (BORR) Per RECIST1.1

    BORR is defined as the best response recorded from the start of the treatment until disease progression/recurrence (taking as reference for progressive disease the smallest measurements recorded since the treatment started) assessed by the Response Evaluation Criteria in Solid Tumors (RECIST)v1.1. Complete Response (CR) is disappearance of all target lesions. Partial Response (PR) is at least a 30% decrease in the sum of the diameters of target lesions, taking as reference the baseline sum of diameters. Progressive Disease (PD) is at least a 20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). The appearance of one or more new lesions is also considered progressions). Stable Disease (SD) is neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum of diameters while on study.

    Measured: Up to approximately 10 months

  4. Depth of response (DpR)

    DpR was defined as the relative change in the sum of the target lesions' longest diameters at their smallest attained sizes compared to baseline time.

    Measured: Up to approximately 10 months

  5. rate of secondary resection of metastases

    secondary resection of initially unresectable metastases of colorectal cancer

    Measured: Up to approximately 10 months

  6. Patient quality of life

    Change From Baseline in European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 and European Quality of Life 5 Dimensions 5 Level Version questionnaires

    Measure Description:

    The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 30 questions are scored on a 4-point scale (1=Not at All to 4=Very Much). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. Higher scores meant a better level of function.

    The EQ-5D-5L is a generic tool for Patient-Reported Outcomes (PRO) measurement using 6 5 questions that can assess patients' quality of life, irrespective of the disease. .

    It includes a vertical EQ visual analog scale (EQ VAS, 0-100 points)

    Measured: Up to approximately 10 months

  7. Serum concentrations of bevacizumab

    Serum concentrations of bevacizumab in order to evaluate the effect of doubling the administered dose of bevacizumab.

    Measured: on day 14 of the first administration, and at 2 months from randomization (= 3 months from the first course)

  8. Medical-economic analysis

    A model-based cost-effectiveness analysis will be performed for estimating the Incremental Cost-Utility Ratio (cost per QALY gained) et the Incremental Cost-Effectiveness Ratio (cost per life-year gained) from the Healthcare system perspective.

    Measured: up to death

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Oct 2024
  2. Study start4 Mar 2025
  3. Primary completion4 Mar 2028 (estimated)
  4. Study completion4 Mar 2029 (estimated)

Resources

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
Model description
This project is a multicenter, double-blind, randomized trial in two parallel groups.
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
244 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06642844
Sponsor's protocol ID
DR230009
Acronym
PHARBEVACOL
Status last verified
Jun 2026
First submitted
8 Mar 2024
Last updated
16 Jun 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Avastin, 25 Mg/mL Intravenous Solution in people with Unresectable Metastatic Colorectal Cancer, run by University Hospital, Tours at 4 sites in France.

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 13 inclusion and 19 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: looking for participants now, as of the sponsor's last update on 16 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in France. 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?

Contact Thierry Lecomte (0247475900, thierry.lecomte@med.univ-tours.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The primary endpoint is progression-free survival (PFS) (time frame: up to death). 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 16 Jun 2026.

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