ClinicalTrials.gg
TerminatedNCT01468623PROFUSEUpdated Jul 19, 2023

Study Comparing Optimized 5-FU Dosing and Standard Dosing in Metastatic Colorectal Cancer Patients Treated With mFOLFOX6

A Phase 4 interventional study of Pharmacokinetic 5-FU dose adjustment using OnDose® assay and Standard of care in Colorectal Cancer, Metastatic, sponsored by Myriad Genetic Laboratories, Inc.. Terminated at 58 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-07-19.

Sponsored by Myriad Genetic Laboratories, Inc. · Phase 4, Interventional, and Treatment

Why this study was terminated
Study terminated due to slow enrollment.
Phase
Phase 4
Study type
Interventional
Enrollment
51
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 2,338 studies in Colorectal Neoplasms with a site in United States — 420 open to participants now, 629 under way, 30 of them phase 3. Colorectal Neoplasms · United States.

Enrollment
1,071st of 1,931
51 · median 64
Started
2011
with 61 others
Phase 4
19 of 2,338
4 open now
Registered
752nd of 2,338
by date

Among the 2,338 studies in Colorectal Neoplasms with a site in United States, this one is the 1,071st largest by enrollment of the 1,931 interventional ones that give a count, is one of 62 that started in 2011, is one of 19 in phase 4, and was the 752nd registered.

Colorectal Neoplasms

6,544 studies on the registry are indexed under Colorectal Neoplasms; 1,666 are open to participants now.

Browse Colorectal Neoplasms studies →

Open to participants now

420 of the 2,338 studies in Colorectal Neoplasms with a site in United States are open now. Recruiting first, the newest first:

415 more — sign in →

All 420 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 1,184 Colorectal Neoplasms studies recruiting now, 767 (65%) set no upper age limit and 264 (22%) stop at 75 or younger; 48 take children under 18; 124 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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02

Study summary

The purpose of this study is to compare OnDose® based pharmacokinetic administration of 5-FU versus standard Body Surface Area (BSA) based administration of 5-FU in patients with metastatic colorectal cancer treated with mFOLFOX6, with or without bevacizumab, to determine if the use of OnDose® achieves an improvement in the Overall Response Rate (ORR) relative to BSA dosing response.

03

Conditions studied

  • Colorectal Cancer, Metastatic

Keywords

  • Colorectal cancer, metastatic
  • FOLFOX6
  • 5-FU
  • First line
  • bevacizumab
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Selection Criteria:

  • Patients with confirmed colorectal cancer
  • No prior chemotherapy for the treatment of metastatic colorectal cancer
  • At least one by CT or MRI of ≥ 20 mm (if conventional CT scan) or ≥ 10 mm (if spiral CT scan)
  • Performance Status (ECOG-PS) status ≤ 2
  • At least 18 years of age
  • > 6 months
  • Must be able and willing to give written
  • Women of (i.e., women who are pre-menopausal or not surgically sterile) must use acceptable methods (abstinence, intrauterine device [IUD], oral contraceptive or double barrier device), and must have a negative serum or urine pregnancy test within 1 week prior to beginning treatment on this trial. Nursing patients are excluded. Sexually active men must also use acceptable contraceptive methods (abstinence, condom).
  • ANC count greater than or equal to 1,500/ mm³
  • greater than or equal to 100,000/ mm³
  • Serum creatinine less than or equal to 2x (normal range (male): 97-137 mL/min; (female): 88-128 mL/min)
  • (ALT) and aspartate aminotransferase (AST) less than or equal to 3x the upper limit of normal (≤ 5.0 x ULN is acceptable if liver has tumor involvement) (ALT normal range: \< 41 iu/L (male), \< 31 iu/L (female); AST normal range: \< 37 iu/L (male), \< 31 iu/L (female)).
  • (PT), activated partial thromboplastin time (aPTT) and INR ≤ 1.5 x ULN (INR normal range: 0.8-1.2) or in the therapeutic range if on anticoagulation.
  • greater than or equal to 9 gm/dl (may be corrected by transfusion prior to 5-FU treatment with investigator approval).
Terms in these criteria, in plain language(13)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
51 participants (actual)

Study arms

  • Experimental
    OnDose®

    Patients will receive FOLFOX6 with or without bevacizumab (Avastin). Patients' 5-FU dose will be optimized by measuring the Area Under the Curve (AUC) of 5-FU by the commercially available OnDose® assay and their dose for subsequent cycles adjusted following a pre-established dose adjustment algorithm.

    Other: Pharmacokinetic 5-FU dose adjustment using OnDose® assay

  • Active comparator
    Body Surface Area (BSA)

    Patients will receive FOLFOX6 with or without bevacizumab (Avastin). Patients will receive 5-FU based on traditional BSA calculation and their dose adjusted based on standard clinical practice. OnDose® AUC measurements will be performed for this arm but will not be used for dose adjustment.

    Other: Standard of care

Interventions

  • OtherPharmacokinetic 5-FU dose adjustment using OnDose® assay

    OnDose is a commercially available assay to measure concentration of 5-FU exposure.

    Also known as: OnDose®

  • OtherStandard of care

    Patients' dose of 5-FU will be based on Body Surface Area (BSA).

06

What researchers measure

Primary outcomes

  1. Overall response rate (ORR)

    Time frame: 6 months

Secondary outcomes

  1. Progression-free survival (PFS)

    Time frame: 30 months

07

Study locations

58 sites
  • Birmingham, Alabama, United States
  • Corona, California, United States
  • Fountain Valley, California, United States
  • La Jolla, California, United States
  • Modesto, California, United States
  • Rancho Cucamonga, California, United States
  • Riverside, California, United States
  • Santa Rosa, California, United States
  • Washington, District of Columbia, United States
  • Merritt Island, Florida, United States
  • Ocala, Florida, United States
  • Titusville, Florida, United States
  • Viera, Florida, United States
  • Albany, Georgia, United States
  • Chicago, Illinois, United States
  • Crystal Lake, Illinois, United States
  • Galesburg, Illinois, United States
  • Grayslake, Illinois, United States
  • Highland Park, Illinois, United States
  • Lake Forest, Illinois, United States
  • Libertyville, Illinois, United States
  • Niles, Illinois, United States
  • Skokie, Illinois, United States
  • Munster, Indiana, United States
  • Louisville, Kentucky, United States
  • Baton Rouge, Louisiana, United States
  • Metairie, Louisiana, United States
  • Ann Arbor, Michigan, United States
  • Detroit, Michigan, United States
  • Farmington Hills, Michigan, United States
  • Great Falls, Montana, United States
  • Las Vegas, Nevada, United States
  • Hackensack, New Jersey, United States
  • Johnson City, New York, United States
  • Greensboro, North Carolina, United States
  • Fargo, North Dakota, United States
  • Minot, North Dakota, United States
  • Canton, Ohio, United States
  • Columbus, Ohio, United States
  • Bend, Oregon, United States
  • Drexel Hill, Pennsylvania, United States
  • Philadelphia, Pennsylvania, United States
  • Crossville, Tennessee, United States
  • Huntsville, Tennessee, United States
  • Bedford, Texas, United States
  • Garland, Texas, United States
  • Grapevine, Texas, United States
  • Kerrville, Texas, United States
  • McAllen, Texas, United States
  • San Antonio, Texas, United States
  • Tyler, Texas, United States
  • Waco, Texas, United States
  • Ogden, Utah, United States
  • Salt Lake City, Utah, United States
  • Fairfax, Virginia, United States
  • Newport News, Virginia, United States
  • Edmonds, Washington, United States
  • Seattle, Washington, United States
08

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Sep 2011, a primary completion of Aug 2012 and a completion of Aug 2012. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 1, 2011
First posted
Nov 9, 2011
Start
Sep 2011
Primary completionActual
Aug 2012
CompletionActual
Aug 2012
Last update
Jul 19, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 19, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01468623
Lead sponsor
Myriad Genetic Laboratories, Inc.
Responsible party
Sponsor
First posted
Nov 9, 2011
Start date
Sep 2011
Primary completion
Aug 2012
Completion
Aug 2012
Last update
Jul 19, 2023

Study contacts

Abebe Haregewoin, MD, PhD
study director · Myriad Genetic Laboratories, Inc.

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Jul 2023. You cannot join it, but the record below documents what was studied.

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