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CompletedNCT01287598Updated Jul 10, 2019

BAY73-4506 Probe Substrate Study

A Phase 1 interventional study of Regorafenib (Stivarga, BAY73-4506) and Warfarin in Neoplasms, sponsored by Bayer. Completed at 4 sites in Canada. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-07-10.

Sponsored by Bayer · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Jul 2018, 8 years 3 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
41
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

  • To evaluate the effect of BAY73-4506 on the pharmacokinetics of probe substrates of CYP 2C9 (warfarin), 2C19 (omeprazole) and 3A4 (midazolam) administered in a cocktail approach and on the pharmacokinetics of a probe substrate of CYP 2C8 (rosiglitazone)
  • To evaluate safety, anti-tumor activity, pharmacokinetics, and pharmacodynamics of BAY73-4506 in patients with advanced solid tumors
02

Conditions studied

  • Neoplasms

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Keywords

  • Phase I
  • Probe substrate
  • target therapy
  • small molecule
  • pharmacokinetics
03

In context

Neoplasms

9,610 studies on the registry are indexed under Neoplasms; 2,508 are open to participants now.

This study's enrollment of 41 is below the median of 50 across 7,429 interventional studies indexed under Neoplasms.

Browse Neoplasms studies →

Lead sponsor

Bayer is the lead sponsor of 1,674 studies on the registry; 54 are open to participants now.

Of its 213 completed or terminated interventional studies of FDA-regulated products, 130 (61%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

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

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Female and male subjects must be ≥ 18 years at the first screening examination / visit
  • ECOG Performance Status of ≤ 2
  • Histological or cytological documentation of confirmed advanced solid tumors. Subjects should have measurable or non-measurable disease according to RECIST
  • Life Expectancy of at least 3 months
  • Adequate bone marrow, liver, and renal functions as assessed by the following laboratory requirements conducted within 14 days prior to the first study treatment:

    • Hemoglobin ≥ 9.0 g/dL
    • Absolute neutrophil count (ANC) ≥1,500/mm3
    • Platelet count ≥ 100,000/ mm3
    • Total bilirubin ≤ 1.5 times the upper limit of normal (ULN)
    • Alkaline phosphatase ≤ 2 times ULN
    • ALT and AST ≤ 2.5 x ULN (≤ 5.0 x ULN for subjects with cancer involving the liver)
    • Serum creatinine ≤ 1.5 times ULN and glomerular filtration rate (GFR)≥ 30 ml/min/1.73 m2, according to the MDRD (Modified Diet in Renal Disease) abbreviated formula
    • Lipase ≤ 1.5 ULN
    • INR and PTT ≤ 1.5 ULN
  • Subjects who are therapeutically treated with warfarin, heparin or other anticoagulants are not eligible for study participation in Group A. Subjects who are therapeutically treated with warfarin, heparin or other anticoagulants, will be allowed to participate in Group B of the study provided they meet all eligibility criteria. Close monitoring of at least weekly evaluations will be performed until INR or PTT are stable by the local standard of care.
  • Recovery from previous drug/procedure-related toxicities to CTC Grade 0 or 1 levels (except for alopecia), or to baseline preceding the prior treatment. Preexisting chemotherapy induced sensory neuropathy of CTC Grade ≤2 is not an exclusion criteria.
  • Negative serum pregnancy test must be obtained within 7 days prior to the start of treatment in women of childbearing potential. Negative results must be available prior to study treatment.
  • Subjects enrolled in this study must use adequate barrier birth control measures prior to, during the course of the study, and 3 months after the last administration of regorafenib.
  • An adequate contraception includes the use of condoms or a vasectomy, hormonal contraception with implants or combined PO contraceptives, certain intrauterine devices, bilateral tubal ligation, or hysterectomy. In addition, adequate birth control measures for the subject's partner is required, such as a hormonal contraception with implants or combined PO contraceptives, certain intrauterine devices, bilateral tubal ligation, or hysterectomy, use of condoms or a vasectomy.

Exclusion criteria

Exclusion Criteria:

  • History of cardiac disease: Congestive heart failure (New York Heart Association, NYHA, Class III or IV) or active coronary artery disease (unstable angina [angina symptoms at rest] or new-onset angina [began within the last 3 months] or myocardial infarction within the past 6 months). Treatment with Type 1A or 3 anti-arrhythmics, such as Quinidine, Procainamide, Amiodarone, or Sotalol are not permitted. β-Blockers and digoxin are permitted.
  • Left ventricular ejection fraction (LVEF) \< 50% or below the LLN for the institution (whichever is higher).
  • Subjects with pheochromocytoma
  • Dehydration NCI-CTCAE, version 4, Grade > 1
  • Uncontrolled hypertension (failure of diastolic blood pressure to fall to or below 90 mmHg or systolic blood pressure to fall to or below 140 mmHg with or without the use of antihypertensive drugs). At screening, subjects with history of hypertension should be on a stable anti-hypertensive treatment for at least 7 days prior to the first dose of study drug.
  • Patients with known allergy to any of the study drug(s) to be administered, including known severe allergies, non-allergic drug reactions, or multiple drug allergies to any of the study drug(s) to be administered. This is also includes hypersensitivity to any of the compounds or excipients that will be administered to the study subject, specifically regorafenib, and warfarin, omeprazole and midazolam for subjects in Group A, or rosiglitazone for subjects in Group B.
  • Subjects with arterial or venous thrombotic or embolic events, such as cerebrovascular accident (including transient ischemic attack), deep vein thrombosis, or pulmonary embolism within 6 months before the start of study medication.
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
41 participants (actual)

Study arms

  • Experimental
    Arm 1

    Regorafenib (Stivarga, BAY73-4506) + warfarin + omeprazole + midazolam

    Drug: Regorafenib (Stivarga, BAY73-4506) · Drug: Warfarin · Drug: Omeprazole · Drug: Midazolam

  • Experimental
    Arm 2

    Regorafenib (Stivarga, BAY73-4506) + rosiglitazone

    Drug: Regorafenib (Stivarga, BAY73-4506) · Drug: Rosiglitazone

Interventions

06

What researchers measure

Primary outcomes

  1. Pharmacokinetics of probe substrates (AUC, Cmax, etc.)

    Time frame: Approximately 6 weeks

Secondary outcomes

  1. Tumor Response evaluation measured by Response Evaluation Criteria in Solid Tumors (RECIST 1.1)

    Time frame: Up to 3 years or longer if indicated

  2. Adverse event collection

    Time frame: Up to 3 years or longer if indicated

07

Study locations

4 sites
  • Cross Cancer Institute
    Edmonton, Alberta T6G 1Z2, Canada
  • British Columbia Cancer Agency-Vancouver Centre
    Vancouver, British Columbia V5Z 4E6, Canada
  • Juravinski Cancer Centre
    Hamilton, Ontario L8V 5C2, Canada
  • Sir Mortimer B. Davis Jewish General Hospital
    Montreal, Quebec H3T 1E2, Canada
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Aug 2011 to primary completion in Jul 2018, 83 months.

Of 1,085 industry-sponsored phase 1 interventional studies under Neoplasms, half reached primary completion within 36 months of starting (the median), counting those still running; a quarter within 24 and three quarters within 58. This study's 83 months is above that.

Counting every sponsor, half of 1,494 studies reached it within 40 months; a quarter within 25 and three quarters within 63.

Neoplasms covers many different conditions, not one, so the studies compared here vary widely. Read these figures as a rough guide.

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

Registered
Jan 31, 2011
First posted
Feb 1, 2011
StartActual
Aug 2, 2011
Primary completionActual
Jul 3, 2018
CompletionActual
Jul 30, 2018
Last update
Jul 10, 2019
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 10, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01287598
Lead sponsor
Bayer
Responsible party
Sponsor
First posted
Feb 1, 2011
Start date
Aug 2, 2011
Primary completion
Jul 3, 2018
Completion
Jul 30, 2018
Last update
Jul 10, 2019

Study contacts

Bayer Study Director
study director · Bayer

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2019. You cannot join it, but the record below documents what was studied.

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Studies of the drugs tested here: Warfarin · Omeprazole · Midazolam · Rosiglitazone

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