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NaF Positron Emission Tomography/Computed Tomography (PET/CT)Imaging to Assess Treatment Responsiveness to TAK-700 in Patients With Castrate Resistant Prostate Cancer (CRPC) With Bone Metastasis

A Pharmacodynamic Study Using NaF PET/CT Imaging to Assess Treatment Responsiveness to TAK-700 in Patients With Metastatic Castrate Resistant Prostate Cancer to Bone

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01816048
Enrollment
8
Registered
2013-03-21
Start date
2013-05-31
Completion date
2016-11-30
Last updated
2019-12-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prostatic Neoplasms, Prostate Cancer

Keywords

prostate, prostate cancer

Brief summary

The purpose of this study is to assess whether NaF PET/CT scans can be used to evaluate treatment response in bone metastases in subjects with prostate cancer treated with the investigational drug, TAK-700.

Interventions

PROCEDUREComputed Tomography

Undergo 18F NaF PET/CT scan

TAK-700 will be administered at 300mg twice per day on 28-day continuous cycles

Undergo NaF F18 PET/CT scan

PROCEDUREPositron Emission Tomography

Undergo 18F NaF PET/CT scan

Sponsors

Millennium Pharmaceuticals, Inc.
CollaboratorINDUSTRY
University of Wisconsin, Madison
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male patients 18 years or older * Voluntary written consent * Histologically proven adenocarcinoma of the prostate * Evidence of radiographic bone metastases * May have received prior chemotherapy for metastatic disease, but prior chemotherapy is not a requirement for eligibility * Eastern Cooperative Oncology Group performance status 0-2 * Serum testosterone level is less than or equal to 50 ng/dL * Has undergone orchiectomy or plan to continue receiving gonadotropin releasing hormone (GnRH) analogue therapy * Adequate organ function as measured by screening laboratory values specified in the protocol * Must agree to use appropriate contraceptives prior to study procedures, during duration of study participation and for 4 months after last dose of TAK 700 * Must be able to lie flat for greater than or equal to 30 minutes during PET/CT imaging * Screening calculated ejection fraction of greater than or equal to 50% by multigated radionuclide angiography (MUGA) scan or Echocardiogram

Exclusion criteria

* Received Strontium-89, Samarium-153, or other radioisotope within 3 months of registration * history of allergic reactions attributed to compounds similar to sodium fluoride F-18 (NaF) * history of seizure disorder * Known history of brain metastases * Concurrent treatment with any herbal products within 7 days of study entry * Received radiotherapy less than or equal to 4 weeks prior to registration * Known hypersensitivity to TAK-700 or related compounds * Prior therapy for treatment of metastatic castrate resistant prostate cancer with any androgen biosynthesis inhibitor or androgen signaling pathway inhibitor such as: enzalutamide (MDV-3100), abiraterone, ketoconazole, or aminoglutethimide * Current bladder neck outlet obstruction * Current spinal cord compression * Current bilateral hydronephrosis * History of adrenal insufficiency * History of myocardial infarction, unstable symptomatic ischemic heart disease, ongoing arrhythmias (over grade 2), thromboembolic events, or any other cardiac condition within 6 months prior to first dose of study drug. * Uncontrolled high blood pressure * Known history of human immunodeficiency virus (HIV) infection, hepatitis B, or hepatitis C * Major surgery less than or equal to 4 weeks before the first dose of study drug * Serious infection less than or equal to 2 weeks before the first dose of study drug * Known gastrointestinal (GI) disease or GI procedure that could interfere with oral absorption or tolerance of TAK-700, including difficulty swallowing capsules

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With a Change in Maximum NaF PET/CT Standardized Uptake ValuesBaseline and 3 monthsTo measure changes in NaF PET/CT standardized uptake values (SUVmax) from prior to dosing with Tak-700 to12 weeks after starting treatment with TAK-700. Value at three months minus value at baseline.
Number of Participants With Change in Prostate Specific Antigen (PSA) Response RateBaseline and 3 monthsMeasure prostate specific antigen (PSA) response rate in patients treated with TAK700, as measured by a decline in the PSA level from baseline to the month 3 assessment according to the Prostate Cancer Clinical Trials Working Group (PCWG2), at least a 50% decrease from baseline. Percent increase or decrease from month three compared to baseline.
Number of Participants With a Change in Total NaF PET/CT Standardized Uptake ValuesBaseline and 3 monthsTo measure changes in NaF PET/CT standardized uptake values (SUV total) from prior to dosing with Tak-700 to12 weeks after starting treatment with TAK-700. Percent change from three months to baseline; value at three months minus value at baseline.

Secondary

MeasureTime frameDescription
Compare Changes on NaF PET/CT After Treatment With TAK700 With Standard Clinical Outcomes Including PSA Doubling Time, Response Evaluation Criteria in Solid Tumors (RECIST), and Radiographic Progression Free Survival.Approximately 24 months
Number of Participants With a Change in the Number of Circulating Tumor Cells Using One or More Methods (Epispot)At baseline and 12 weeksBaseline compared to 12 weeks. Value at three months minus value at baseline.
Number of Subjects Who Experience Adverse Events While on Treatment With TAK 700Up to 12 monthsThe number of subjects experiencing adverse events per CTCAE 4.0 while on treatment.
PSA Response Rate and Circulating Tumor Cell Counts of Subjects Receiving TAK700 to NaF PET/CT Imaging ResultsBaseline, one month, 2 months, 3 months
Number of Participants With Change in the Number of Circulating Tumor Cells Using the Cell Search System (Veridex, LLC) Obtained Prior to Beginning Treatment With TAK 700, After Completing One Cycle and After Completing 3 CyclesAt baseline, one month, three monthsChange from baseline to one month and three month.
Number of Patients With a Measurable Change in PSA Kinetics With TAK700 From Baseline to Off TreatmentUp to 14 monthsStable: no change in PSA kinetics Decrease: less than baseline Increase: greater than baseline PSA data was gathered at baseline and off treatment.
Number of Participants With Changes in NaF PET/CT Results in Response to TAK700At baseline and 12 weeksThis is an exploratory endpoint as we are planning to identify other new parameters during the PET/CT scanning that may be more predictive of response (such as SUV volume, or dynamic changes during the scanning period). Changes in results at week 12 compared to baseline. Value at 12 weeks minus value at baseline.

Countries

United States

Participant flow

Participants by arm

ArmCount
TAK-700
TAK-700 was administered at 300 mg orally (PO)twice daily (BID) continuously on 28-day treatment cycles. TAK-700: TAK-700 will be administered at 300mg twice per day on 28-day continuous cycles Fluorine F 18 Sodium Fluoride: Undergo NaF F18 PET/CT scan Positron Emission Tomography: Undergo 18F NaF PET/CT scan Computed Tomography: Undergo 18F NaF PET/CT scan
8
Total8

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event1
Overall StudyDeath1
Overall StudyDisease Progression3
Overall StudyWithdrawal by Subject1

Baseline characteristics

CharacteristicTAK-700
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
6 Participants
Age, Categorical
Between 18 and 65 years
2 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
8 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
8 Participants
Region of Enrollment
United States
8 participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
8 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
1 / 8
other
Total, other adverse events
8 / 8
serious
Total, serious adverse events
4 / 8

Outcome results

Primary

Number of Participants With a Change in Maximum NaF PET/CT Standardized Uptake Values

To measure changes in NaF PET/CT standardized uptake values (SUVmax) from prior to dosing with Tak-700 to12 weeks after starting treatment with TAK-700. Value at three months minus value at baseline.

Time frame: Baseline and 3 months

Population: The study closed early so only 8 of 20 planned were enrolled and of the 8, only 4 completed the week 12 scan.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
TAK-700Number of Participants With a Change in Maximum NaF PET/CT Standardized Uptake ValuesSUVmax decrease3 Participants
TAK-700Number of Participants With a Change in Maximum NaF PET/CT Standardized Uptake ValuesSUVmax increase1 Participants
Primary

Number of Participants With a Change in Total NaF PET/CT Standardized Uptake Values

To measure changes in NaF PET/CT standardized uptake values (SUV total) from prior to dosing with Tak-700 to12 weeks after starting treatment with TAK-700. Percent change from three months to baseline; value at three months minus value at baseline.

Time frame: Baseline and 3 months

Population: The study closed early so only 8 of 20 planned were enrolled and of the 8, only 4 completed the week 12 scan.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
TAK-700Number of Participants With a Change in Total NaF PET/CT Standardized Uptake ValuesSUV total increase1 Participants
TAK-700Number of Participants With a Change in Total NaF PET/CT Standardized Uptake ValuesSUV total decrease2 Participants
TAK-700Number of Participants With a Change in Total NaF PET/CT Standardized Uptake ValuesSUV total no change1 Participants
Primary

Number of Participants With Change in Prostate Specific Antigen (PSA) Response Rate

Measure prostate specific antigen (PSA) response rate in patients treated with TAK700, as measured by a decline in the PSA level from baseline to the month 3 assessment according to the Prostate Cancer Clinical Trials Working Group (PCWG2), at least a 50% decrease from baseline. Percent increase or decrease from month three compared to baseline.

Time frame: Baseline and 3 months

Population: Study closed early and only 8 of planned 20 enrolled. Four subjects came off study prior to the three month time point.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
TAK-700Number of Participants With Change in Prostate Specific Antigen (PSA) Response RatePSA decline >= 50%3 Participants
TAK-700Number of Participants With Change in Prostate Specific Antigen (PSA) Response RatePSA decline =< 50%1 Participants
Secondary

Compare Changes on NaF PET/CT After Treatment With TAK700 With Standard Clinical Outcomes Including PSA Doubling Time, Response Evaluation Criteria in Solid Tumors (RECIST), and Radiographic Progression Free Survival.

Time frame: Approximately 24 months

Population: Due to study closing early, only 8 of planned 20 patients enrolled. Data for this endpoint was not obtained.

Secondary

Number of Participants With a Change in the Number of Circulating Tumor Cells Using One or More Methods (Epispot)

Baseline compared to 12 weeks. Value at three months minus value at baseline.

Time frame: At baseline and 12 weeks

Population: Due to study closing early only 8 of 12 patients enrolled, and only 5 subjects obtained a week 12 CTC test.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
TAK-700Number of Participants With a Change in the Number of Circulating Tumor Cells Using One or More Methods (Epispot)Increase in circulating tumors2 Participants
TAK-700Number of Participants With a Change in the Number of Circulating Tumor Cells Using One or More Methods (Epispot)Decrease in circulating tumors3 Participants
Secondary

Number of Participants With Change in the Number of Circulating Tumor Cells Using the Cell Search System (Veridex, LLC) Obtained Prior to Beginning Treatment With TAK 700, After Completing One Cycle and After Completing 3 Cycles

Change from baseline to one month and three month.

Time frame: At baseline, one month, three months

Population: Due to study closing early only 8 of planned 20 enrolled. All subjects completed one month of treatment; only 4 subjects completed the week 12 scan.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
TAK-700Number of Participants With Change in the Number of Circulating Tumor Cells Using the Cell Search System (Veridex, LLC) Obtained Prior to Beginning Treatment With TAK 700, After Completing One Cycle and After Completing 3 CyclesCycle 1 (one month)Increase in circulating tumors2 Participants
TAK-700Number of Participants With Change in the Number of Circulating Tumor Cells Using the Cell Search System (Veridex, LLC) Obtained Prior to Beginning Treatment With TAK 700, After Completing One Cycle and After Completing 3 CyclesCycle 1 (one month)Decrease in circulating tumors5 Participants
TAK-700Number of Participants With Change in the Number of Circulating Tumor Cells Using the Cell Search System (Veridex, LLC) Obtained Prior to Beginning Treatment With TAK 700, After Completing One Cycle and After Completing 3 CyclesCycle 1 (one month)No change1 Participants
TAK-700Number of Participants With Change in the Number of Circulating Tumor Cells Using the Cell Search System (Veridex, LLC) Obtained Prior to Beginning Treatment With TAK 700, After Completing One Cycle and After Completing 3 CyclesCycle 4 (three months)Increase in circulating tumors1 Participants
TAK-700Number of Participants With Change in the Number of Circulating Tumor Cells Using the Cell Search System (Veridex, LLC) Obtained Prior to Beginning Treatment With TAK 700, After Completing One Cycle and After Completing 3 CyclesCycle 4 (three months)Decrease in circulating tumors1 Participants
TAK-700Number of Participants With Change in the Number of Circulating Tumor Cells Using the Cell Search System (Veridex, LLC) Obtained Prior to Beginning Treatment With TAK 700, After Completing One Cycle and After Completing 3 CyclesCycle 4 (three months)No change2 Participants
Secondary

Number of Participants With Changes in NaF PET/CT Results in Response to TAK700

This is an exploratory endpoint as we are planning to identify other new parameters during the PET/CT scanning that may be more predictive of response (such as SUV volume, or dynamic changes during the scanning period). Changes in results at week 12 compared to baseline. Value at 12 weeks minus value at baseline.

Time frame: At baseline and 12 weeks

Population: Due to study closing early only 8 of planned 20 patients enrolled and only 4 of the 8 subjects enrolled completed the week 12 scan.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
TAK-700Number of Participants With Changes in NaF PET/CT Results in Response to TAK700Increase in SUV total1 Participants
TAK-700Number of Participants With Changes in NaF PET/CT Results in Response to TAK700No change1 Participants
TAK-700Number of Participants With Changes in NaF PET/CT Results in Response to TAK700Decrease in SUV total2 Participants
Secondary

Number of Patients With a Measurable Change in PSA Kinetics With TAK700 From Baseline to Off Treatment

Stable: no change in PSA kinetics Decrease: less than baseline Increase: greater than baseline PSA data was gathered at baseline and off treatment.

Time frame: Up to 14 months

Population: Due to study closing early only 8 of planned 20 patients enrolled.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
TAK-700Number of Patients With a Measurable Change in PSA Kinetics With TAK700 From Baseline to Off TreatmentStable1 Participants
TAK-700Number of Patients With a Measurable Change in PSA Kinetics With TAK700 From Baseline to Off TreatmentDecrease in PSA3 Participants
TAK-700Number of Patients With a Measurable Change in PSA Kinetics With TAK700 From Baseline to Off TreatmentIncrease in PSA4 Participants
Secondary

Number of Subjects Who Experience Adverse Events While on Treatment With TAK 700

The number of subjects experiencing adverse events per CTCAE 4.0 while on treatment.

Time frame: Up to 12 months

ArmMeasureValue (NUMBER)
TAK-700Number of Subjects Who Experience Adverse Events While on Treatment With TAK 7008 participants
Secondary

PSA Response Rate and Circulating Tumor Cell Counts of Subjects Receiving TAK700 to NaF PET/CT Imaging Results

Time frame: Baseline, one month, 2 months, 3 months

Population: Data was not collected for this outcome measure.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026