An Open Trial to Assess the Efficacy and Safety of Oral Thalidomide in Patients With Hormone-Refractory Prostate Cancer

March 23, 2016 updated by: National Health Research Institutes, Taiwan

An Open, Non-Comparative Trial to Assess the Efficacy and Safety of Oral Thalidomide (THADO) in Patientswith Hormone-Refractory Prostate Cancer-A PHASE II CLINICAL TRIAL

Trial objectives: The primary objective is to determine the proportion of patients who have 50% decrease in PSA maintained for at least 4 weeks, in advanced hormone-refractory prostate cancer (HRPC) patients who receive thalidomide (100 mg BID). Secondary objectives include the objective tumor response rate for measurable lesions, the median duration of tumor response, median time to disease progression and assessments of clinical benefits, quality of life, and safety profile.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

  • Trial objectives: The primary objective is to determine the proportion of patients who have 50% decrease in PSA maintained for at least 4 weeks, in advanced hormone-refractory prostate cancer (HRPC) patients who receive thalidomide (100 mg BID). Secondary objectives include the objective tumor response rate for measurable lesions, the median duration of tumor response, median time to disease progression and assessments of clinical benefits, quality of life, and safety profile.
  • Number of patient : about 70 evaluable patients .Simon's optimal two-stage design will be used to allow early termination should sufficient evidence of non-effectiveness are collected. Thalidomide is considered non-effective if the proportion of PSA response is 14% or lower, and is worthy of further study if the proportion of response is 30% or higher. Controlling the risk for accepting thalidomide when it is non-effective to be at most 5% and the risk for rejecting thalidomide when it is effective to be at most 10%, this design calls for 26 patients at the first stage. If four or less PSA response is observed, then the study will be terminated. Otherwise, additional 44 patients will be entered at the second stage. The treatment will be rejected if a total of 14 or less PSA responses are observed out of 70 patients. This design has 70% chance of termination after the first stage if the true PSA response rate is 14% or lower. With 70 patients, the study will provide 95% assurance to claim that the difference between the estimated and true proportion will be within 11%.
  • Medication and Dose: Thalidomide (THADO 50mg/cap.) 100mg, BID.
  • Duration: Continue treatment until disease progression, unacceptable toxicity or when patient meets any off-study criteria.
  • Efficacy assessments: % of patients with 50% decrease in PSA maintained for at least 4 weeks,Objective tumor response Median duration of tumor response Median time to disease progression, Clinical benefits pain, performance status, weight
  • Quality of life (evaluated by the instruments of EORTC-QLQ-C30, FACT-prostate)Safety assessments:
  • Toxicity -Adverse Event -Laboratory Test

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
30

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Taiwan
      • Taipei, Taiwan, 104
        • Mackay Memorial Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • 18 years of age or older.
  • Histologically or cytologically confirmed adenocarcinoma of prostate that is metastatic, hormone-refractory (confirmed by testing serum testosterone), and clinically progressive following at least one prior hormonal regimen.
  • Patients must have documented progression of disease on anti-androgen withdrawal, if the patient have documented progression on previous anti-androgen therapy.
  • Measurable (patient with measurable bi-dimensional disease) or evaluable disease (defined as the presence of a nonmeasurable abnormality on CT or on physical examination coupled with a PSA ³ 30).
  • Karnofsky performance status ³ 60%.6. Adequate bone marrow functions: Granulocyte count 1,000/mm3, Platelets 75,000/mm3, haemoglobin 8 g/dl.
  • Adequate renal and liver functions: Creatinine < 1.5 mg/dl, Bilirubin < 2 mg/dl, ALT/AST less than 2.5 times the upper limit of the reference range for the institute.
  • Patients with chemical or clinical hypothyroidism should have their thyroid replacement prior to starting study.
  • Patients must have recovered from the effect of recent surgery (at least 4 weeks apart), radiotherapy (at least 4 weeks apart).
  • Patients have ability to complete Quality of Life (QoL) questionnaires.
  • Patients must sign informed consent.

Exclusion Criteria:

  • Patients with advanced second primary malignancy.
  • Patients with brain metastases.
  • Patients with hypersensitivity to thalidomide.
  • History of myocardial infarction within past 6 months, uncontrolled congestive heart failure or angina pectoris.
  • Patients with orthostatic hypotension before therapy.
  • Patients with NCI CTC grade 3 or greater peripheral neuropathy of any cause that is clinically detectable.
  • Patients with active infection, including positive serology for HIV.
  • Patients who have received chemotherapy before for treatment of metastases of prostate cancer, or received other investigational agents or corticosteroids within 4 weeks prior to enrollment of study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
The primary objective is to determine the proportion of patients who have 50% decrease in PSA maintained for at least 4 weeks, in advanced hormone-refractory prostate cancer (HRPC) patients who receive thalidomide (100 mg BID).
Time Frame: The primary objective is to determine the proportion of patients who have 50% decrease in PSA maintained for at least 4 weeks
The primary objective is to determine the proportion of patients who have 50% decrease in PSA maintained for at least 4 weeks
The primary objective is to determine the proportion of patients who have 50% decrease in PSA maintained for at least 4 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Secondary objectives include the objective tumor response rate for measurable lesions, the median duration of tumor response, median time to disease progression and assessments of clinical benefits, quality of life, and safety profile.
Time Frame: The primary objective is to determine the proportion of patients who have 50% decrease in PSA maintained for at least 4 weeks
The primary objective is to determine the proportion of patients who have the median duration of tumor response, median time to disease progression and assessments of clinical benefits, quality of life, and safety profil
The primary objective is to determine the proportion of patients who have 50% decrease in PSA maintained for at least 4 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
National Health Research Institutes, Taiwan

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Ruey-kuen Hsieh, M.D., Taiwan cooperative oncology group

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2002

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2004

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2004

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 13, 2005

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 13, 2005

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 20, 2005

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2016

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 23, 2016

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • T1802

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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