ClinicalTrials.gg
TerminatedNCT03292536Updated Jan 8, 2021

Merestinib on Bone Metastases in Subjects With Breast Cancer

A Phase 1 interventional study of Merestinib in Bone Metastases and Breast Cancer, sponsored by University of Utah. Terminated at 1 site in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-01-08.

Sponsored by University of Utah · Phase 1, Interventional, and Treatment

Why this study was terminated
Enrollment incomplete by the end of the contracted enrollment period

From the registry’s dates

  • Primary completion was Jun 2019, 7 years 4 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
2
Allocation
Not applicable
Ages
18 Years and older
Sex
Female
01

Study summary

This is an open label, pharmacodynamics, intrapatient dose escalation phase 1B study.

02

Conditions studied

  • Bone Metastases
  • Breast Cancer

Browse trials for

03

In context

Breast Neoplasms

14,825 studies on the registry are indexed under Breast Neoplasms; 3,319 are open to participants now.

This study's enrollment of 2 is below the median of 72 across 10,896 interventional studies indexed under Breast Neoplasms.

Browse Breast Neoplasms studies →

Lead sponsor

University of Utah is the lead sponsor of 994 studies on the registry; 175 are open to participants now.

Of its 114 completed or terminated interventional studies of FDA-regulated products, 69 (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
Female
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

  • At least 1 bone must be present
  • Urinary N-telopeptide level above 20nM BCE/mM creatinine measured at ARUP
  • Archived or freshly biopsied primary and/or bone metastatic tumor tissue available in paraffin-embedded blocks or slides that is expected to yield 9 slides
  • of ≥ 6 months
  • Toxicity related to prior treatments must either have resolved to grade 1 or less, returned to baseline, or be deemed irreversible
  • (ECOG) performance status of 0 or 1 (within 28 days prior to enrollment)
  • Planning to remain on current breast cancer therapy for at least 12 weeks.
  • At least one for metastatic breast cancer
  • Concurrent treatment with bisphosphonates or denosumab is required.

Exclusion criteria

Exclusion Criteria:

  • Unable to swallow or take anything orally
  • abnormalities:

    • Prolonged (Fredericia's correction) interval on screening ECG (≥ 450 msec)
    • QRS ˃ 120 msec
    • PR ˃ 210 msec
    • Any prior history, or current evidence of second- or third-degree heart block
    • Heart rate ˂ 40 beats per minute at screening
    • ECG second degree heart block (Mobitz's Type 2 or Wenckebach)
    • Complete heart block
    • Left bundle branch block or bifascicular block (right bundle branch block and left anterior hemiblock together)
    • Episodes of ventricular tachycardia
  • Any known prior (not including non-melanoma skin cancers), unless treated with curative intent
  • A serious uncontrolled medical disorder or active infection, which would impair the ability of the subject to receive protocol therapy
  • Current or recent (within 3 months) gastrointestinal disease that could impact the absorption (i.e., unmanageable diarrhea or malabsorption at the time of screening)
  • Inadequate bone marrow function defined as:

    • (ANC) ˂ 1,500 cells/mm3
    • count ˂ 100,000 cells/mm3
    • ˂ 9 g/dL
  • Inadequate hepatic function defined as:

    • Total ˃ 1.5 x institutional (IULN) (Unless due to diagnosis of Gilbert's Syndrome)
    • (ALT) and aspartate aminotransaminase (AST) ˃ 2.5 x IULN
  • Inadequate renal function defined as: Serum creatinine ˃ 1.5 x ULN
  • (PT)/partial thromboplastin time (PTT) ˃ 1.5 times the ULN
  • Serum sodium, potassium, and calcium levels not within normal limits.
  • Any atrophic macular condition including intermediate or advanced age-related macular degeneration
  • Patients receiving medications that are known to be substrates of CYP2C8 (including paclitaxel), CYP2C9, or CYP2C19 or to be oral substrates of with narrow therapeutic window (listed on http://medicine.iupui.edu/clinpharm/ddis/main-table). Subjects who have discontinued any of these medications must have a of at least 5 days or 5 half-lives of the drug (whichever is longer) prior to the first dose of merestinib
  • Exposure to any drug or placebo within 4 weeks of enrollment
  • Any other sound medical, psychiatric, and/or social reasons as determined by the investigator
  • History of diseases with influence on bone metabolism, such as Paget's disease, osteogenesis imperfecta, active primary or secondary hyperparathyroidism, and primary or secondary hyperthyroidism within 12 months prior to study entry
  • Patients with known symptomatic . Subjects with controlled brain metastasis (no radiographic progression at least 4 weeks following radiation and/or surgical treatment and no neurological signs or symptoms) will be allowed
  • History of allergy to merestinib or chemically related compounds
  • History of osteonecrosis of the jaw
  • Change in chemotherapy or hormone therapy within 8 weeks of the start of the study.
  • Active gout or inflammatory arthritis requiring treatment
  • Use within 28 days of registration of calcitonin, recombinant parathyroid hormone-related peptides, mithramycin, radium, strontium ranelate, or gallium nitrate.
  • Adult patients who require monitored anesthesia for PET scanning due to claustrophobia.
Terms in these criteria, in plain language(18)

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.

Metastases

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

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.

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.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

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.

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).

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

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.

CYP3A (CYP3A4) inhibitors and inducers

CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.

Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
2 participants (actual)

Study arms

  • Experimental
    Merestinib, all patients

    Drug: Merestinib

Interventions

  • \*The merestinib does escalation timing will depend on the schedule of the other anticancer regimen\* Subjects will receive merestinib 40mg PO Qday (dose level 1) for 2 to 4 weeks followed by 80mg PO daily (dose level 2) for 4 to 10 weeks

06

What researchers measure

Primary outcomes

  1. Adverse Events that Occur

    To assess the tolerability of merestinib in combination with standard breast cancer therapies.

    Time frame: 12 weeks, checked at every visit in that time period

  2. Change in urinary N-telopeptide level

    To measure the change in urinary N-telopeptide level after 12 weeks of therapy with merestinib

    Time frame: 12 weeks

Secondary outcomes

  1. Absolute and percentage change in serum B-CTX, TRAP-5b, P1NP and BSAP

    To measure the absolute and percentage change in serum β-CTX, TRAP-5b, P1NP, and BSAP at time points from baseline to 12 weeks.

    Time frame: 12 weeks

  2. Time to skeletal-related events

    To evaluate determine time to skeletal-related event(s) following initiation of merestinib dosing

    Time frame: 12 weeks

  3. Change in pain scores

    To evaluate change in pain as measured by pain scores during and after 12 weeks of merestinib treatment

    Time frame: 12 weeks

  4. Change in pain by narcotic use

    To evaluate change in pain as measured by narcotic use) during and after 12 weeks of merestinib treatment

    Time frame: 12 weeks

  5. Change in bone lesion uptake

    To evaluate the change in bone lesion uptake on NaF PET scan after 12 weeks of merestinib treatment

    Time frame: 12 weeks

07

Study locations

1 site
  • Huntsman Cancer Institute
    Salt Lake City, Utah 84112, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jan 2018 to primary completion in Jun 2019, 17 months.

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

Registered
Sep 20, 2017
First posted
Sep 25, 2017
StartActual
Jan 11, 2018
Primary completionActual
Jun 24, 2019
CompletionActual
Jun 24, 2019
Last update
Jan 8, 2021
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 Jan 8, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03292536
Lead sponsor
University of Utah
Responsible party
Sponsor
First posted
Sep 25, 2017
Start date
Jan 11, 2018
Primary completion
Jun 24, 2019
Completion
Jun 24, 2019
Last update
Jan 8, 2021

Oversight

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

Not currently enrolling

This study is terminated, as verified in Jan 2021. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Merestinib

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