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Prostate CancerPhase 2NCT00780975

A Study of Aplidin ( Plitidepsin) in Subjects With Advanced Prostate Cancer

A Phase 2 study testing Aplidin (plitidepsin) in people with Prostate Cancer, run by PharmaMar at 2 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This is a study to test the safety and efficacy of an investigational chemotherapy agent in patients with advanced prostate cancer. Subjects who meet all entry criteria and have signed the informed consent will be enrolled in the study. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Prostate Cancer
What is being tested?
Aplidin (plitidepsin)
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
8 participants
Where
2 sitesUnited States
Study dates
Feb 2005to Mar 2008
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Written informed consent before starting any study-specific procedure. If any patient is unable to give consent, it may be obtained from the patient's legal representative if in accordance with local laws and regulations.
  • Men with castrate metastatic adenocarcinoma of the prostate, with the following characteristics:
  • Confirmed pathological diagnosis.
  • Metastatic disease (radiologically documented).
  • All patients with chemical castration must have a serum testosterone level below 50 ng/ml. There is no need to document a serum testosterone in patients having a prior surgical castration2.
  • Baseline PSA > 5 ng/ml (according to the recommendations from the Prostate-Specific Antigen Working Group2).
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  • Androgen-independent progressive disease, as defined by detectable, rising PSA in two consecutive measurements at least one week apart:
  • If PSA responded to a prior therapy, progression occurs when the PSA is 50% above the nadir level.
  • If PSA did not respond to a prior therapy, progression occurs when the PSA increases by 25% or more above pretreatment levels.
  • In both cases, the increase in absolute value PSA level must be at least 5 ng/ml, and must be confirmed by a second measurement a minimum of 1 week later.
  • Patients must have received prior docetaxel-based chemotherapy.
  • Recovery from any toxicity derived from previous treatments. The presence of alopecia and NCI-CTC grade < 2 sensitive peripheral neuropathy is allowed.
  • Age > 18 years.
  • Performance status (ECOG) < 2.
  • Life expectancy > 3 months.
  • Adequate renal, hepatic, and bone marrow function (assessed < 14 days before inclusion in the study):
  • Neutrophil count ³ 1.5 x 109/L.
  • Platelet count ³ 100 x 109/L. Hemoglobin > 9 g/dl.
  • Creatinine clearance ³ 40 ml/min (calculated from the Cockcroft and Gault formula), see Appendix 3.
  • Serum bilirubin * 1.5 mg/dl.
  • AST, ALT < 2.5 x ULN (< 5 x ULN in case of liver metastasis).
  • Albumin > 25 g/L.
  • Left ventricular ejection fraction within normal limits

Who cannot join

  • Prior therapy with Aplidin®.
  • Concomitant therapy with any anti-tumor agent, including glucocorticoids at a daily dose greater than 10 mg prednisone or equivalent, except when they were indicated for symptom control, provided that disease progression was documented while on steroids.
  • Small cell carcinoma of the prostate.
  • More than two previous lines of systemic therapy for patient's castrate metastatic disease, considering biological agents or chemotherapy as systemic therapy.
  • Patients with progressive measurable disease but without increased PSA value (according to the consensus recommendations) will not be considered eligible.
  • Wash-out periods less than:
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  • 6 weeks after the last dose of a nitroso-urea or high dose chemotherapy
  • 4 weeks after the last dose of other chemotherapies or biological agents
  • 6 weeks after the end of treatment with extensive external beam radiation (more than 25% of bone marrow distribution) or radionuclide therapy.
  • 4 weeks after the end of treatment with palliative radiation involving less than 25% of bone marrow reserves.
  • 4 weeks for major prior surgery
  • 30 days after receiving any other investigational product
  • Men of reproductive potential who are not using effective contraceptive methods, considering complete abstinence from intercourse throughout the treatment with the study drug and for at least 6 months after completion or premature discontinuation from the study as an effective contraceptive method, to be sure that the patient's female partner does not become pregnant.
  • History of another neoplastic disease. The exceptions are:
  • 8.1 Non-melanoma skin cancer. 8.2 Any other cancer curatively treated with no evidence of disease for at least 10 years.
  • Known symptomatic cerebral or leptomeningeal involvement.
  • Other relevant diseases or adverse clinical conditions:
  • History or presence of unstable angina, myocardial infarction, valvular heart disease or congestive heart failure.
  • Previous mediastinal radiotherapy.
  • Uncontrolled arterial hypertension despite optimal medical therapy.
  • Previous treatment with doxorubicin at cumulative doses in excess of 400 mg/m².
  • Symptomatic arrhythmia or any arrhythmia requiring treatment.
  • Abnormal ECG as detailed below:
  • QT interval prolongation:
  • QTc> 480 msec.
  • Left ventricular hypertrophy :
  • Sokolow Index: (R V5 or V6) + S V1)> 3.5mv.
  • Left bundle-branch block:
  • Complete: QRS> 0.12 sec. No Q wave is seen in leads V5 and V6. A notched R wave is seen in left leads and a notched S wave in right side leads.
  • Right bundle-branch block:
  • Complete: QRS> 0.12 sec. Secondary R (R') wave in leads V1-V2. Slurred S wave in leads D1 ,avL, V5 and V6.
  • Second-degree atrioventricular (av) block:
  • Mobitz I AV block, or Wenckebach block: Progressive prolongation of the PR interval causing progressive R-R interval shortening until a P wave fails to conduct the ventricle. The RR interval containing the blocked P wave is shorter than the sum of the twPP interval.
  • Mobitz II AV block is characterized by sudden unexpected blocked P waves without variation or prolongation of the PR interval. It can be 2:1, 3:1, 4:1 etc.
  • Third-degree atrioventricular block:
  • P waves and QRS complexes without mutual relationship. P wave rate is greater than that of QRS complexes.
  • Ischemia, injury and infarction:
  • Subendocardial ischemia. - Symmetrical T waves of increased amplitude.
  • Subepicardial ischemia. - Inverted symmetrical T waves.
  • Subendocardial injury. - ST segment depression (horizontal or descending).
  • Subepicardial injury. - ST segment elevation with upper convexity.
  • Infarction or necrosis. - Q wave voltage greater than 25% of R wave voltage.
  • Duration of Q wave is 0.04 sec or more
  • History of significant neurological or psychiatric disorders.
  • Active infection; infection by HIV, HBV or HCV. HIV, HBV or HCV testing are not required unless infection is clinically suspected.
  • Myopathy or any clinical situation that causes significant and persistent elevation of CK (> 2.5 ULN in two different determinations performed with one week apart).
  • Significant non-neoplastic liver disease (e.g., cirrhosis, active chronic hepatitis).
  • Limitation of the patient's ability to comply with the treatment or follow-up protocol.
  • Uncontrolled endocrine diseases (e.g. diabetes mellitus, hypothyroidism or hyperthyroidism) (i.e. requiring relevant changes in medication within the last month, or hospital admission within the last 3 months).
  • Known hypersensitivity to Aplidin®, mannitol, cremophor EL, or ethanol.

Trial locations and contacts

2 sites in 1 country.

United States2 sites

  • University of Michigan Comprehensive Cancer Center

    Ann Arbor, Michigan, 48109-0473

  • Seattle Cancer Care Alliance

    Seattle, Washington, 98109

Other trials in United States

About this study

Official title: A Phase II, Multicenter, Open-label, Clinical and Pharmacokinetic Study of Aplidin® as a 3-hour IV Infusion Every 2 Weeks, in Relapsing or Refractory Patients With Androgen-independent Prostate Adenocarcinoma..

This is a study to test the safety and efficacy of an investigational chemotherapy agent in patients with advanced prostate cancer. Subjects who meet all entry criteria and have signed the informed consent will be enrolled in the study. Participants will be required to attend regular clinic visits to receive study medication and have their status monitored. A detailed explanation can be provided by the investigator conducting the study.

Read the detailed description

Prostate cancer is the most common non-cutaneous cancer diagnosed in men in the United States. The majority of deaths occur in men with androgen-independent prostate cancer [AIPC]. Although 80% of men with advanced cancer will initially respond to androgen ablation with disease regression or stabilization, their malignancies become resistant to such therapy.

Conditions
Prostate Cancer
Being tested
Aplidin (plitidepsin)
Keywords
Aplidin, Plitidepsin, Prostate, Cancer
Medical subject headings
Prostatic Neoplasms, Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Aplidin (plitidepsin)Drug

    Aplidin® administered at a starting dose of 5 mg/m2, as a 3-hours intravenous infusion, every 2 weeks.

Study groups in NCT00780975
Study groupRoleWhat they receive
Arm 1ExperimentalAplidin (Plitidepsin)
Receives: Drug: Aplidin (plitidepsin)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The Percentage of Patients With a ≥ 50% Prostate-specific Antigen (PSA) Decline Post-therapy

    Measured: All patients were followed up to progressive disease, start of a new anti-cancer therapy, death or one year after the last treatment visit of the last patient, whichever occured first

Secondary outcomes (5)

  1. Objective Tumor Response According to RECIST

    Patients with an objective tumor response (complete response [CR] or partial response [PR]) per Response Evaluation Criteria In Solid Tumors Criteria (RECIST), See Therasse P, Arbuck SG, Eisenhauer EA, Wanders J, Kaplan RS, et al. New Guidelines to Evaluate the Response to Treatment in Solid Tumors. J Natl Cancer Inst 2000; 92:205-16.

    Measured: All patients were followed up to progressive disease, start of a new anti-cancer therapy, death or one year after the last treatment visit of the last patient, whichever occured first

  2. Progression Free Survival (PFS)

    To assess the antitumor activity of plitidepsin given intravenously over 3-hours every two weeks in patients with castrate metastatic adenocarcinoma of the prostate that have relapsed or progressed after 2 previous lines of systemic therapy, considering biological agents or chemotherapy as systemic therapy and taking into account that patients must have received prior docetaxel-based chemotherapy.

    PFS defined as time from the first day of study treatment to the day of a negative outcome (progression according to RECIST (Therasse P, Arbuck SG, Eisenhauer EA, Wanders J, Kaplan RS, et al. New Guidelines to Evaluate the Response to Treatment in Solid Tumors. J Natl Cancer Inst 2000; 92:205-16) or death) or last contact. If any patient is lost to follow up before disease progression, the PFS will be censored at the date of the last tumor assessment. If there are no tumor assessments the patient will be censored at the first drug administration date.

    Measured: All patients were followed up to progressive disease, start of a new anti-cancer therapy, death or one year after the last treatment visit of the last patient, whichever occured first

  3. Overall Survival (OS)

    To assess the antitumor activity of plitidepsin given intravenously over 3-hours every two weeks in patients with castrate metastatic adenocarcinoma of the prostate that have relapsed or progressed after two previous lines of systemic therapy, considering biological agents or chemotherapy as systemic therapy and taking into account that patients must have received prior docetaxel-based chemotherapy.

    Survival is measured from the first day of study treatment to death or day of their last follow-up

    Measured: All patients were followed up to progressive disease, start of a new anti-cancer therapy, death or one year after the last treatment visit of the last patient, whichever occured first

  4. Pain Improvement Rate

    To assess the antitumor activity of plitidepsin given intravenously over 3-hours every two weeks in patients with castrate metastatic adenocarcinoma of the prostate that have relapsed or progressed after two previous lines of systemic therapy, considering biological agents or chemotherapy as systemic therapy and taking into account that patients must have received prior docetaxel-based chemotherapy.

    Expressed as a change in pain intensity according to the pain intensity score on the 100 mm VAS (Visual Analogue Scale) and/or change in analgesic (morphine-equivalent mg) requirements after a pain stabilization period of 2-7 days

    Visual Analogue Scale (VAS), expressed in the pain intensity score on the 100 mm VAS scale (0=least possible pain to 100=worst possible pain)

    Measured: 2-7 days for the pain stabilization required at baseline to ensure that baseline values are stable and reliable. The follow-up period was up to progressive disease, start of a new anti-cancer therapy, death or one year after the last treatment

  5. PSA Slope Between Baseline PSA Value and Nadir After the Start of Treatment

    To assess the antitumor activity of plitidepsin given intravenously over 3-hours every two weeks in patients with castrate metastatic adenocarcinoma of the prostate that have relapsed or progressed after two previous lines of systemic therapy, considering biological agents or chemotherapy as systemic therapy and taking into account that patients must have received prior docetaxel-based chemotherapy.

    It was calculated as (nadir value-baseline value)/(nadir date-baseline date). Modifications in the slope of PSA changes before and after the start of treatment with Aplidin will also be explored.

    Measured: From baseline until progression or initiation of another anticancer therapy, death or one year after the last treatment visit of the last patient, whichever occurred first.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Oct 2008 (estimated)
  2. Study startFeb 2005
  3. Primary completionMar 2008
  4. Study completionMar 2008

Why it stopped: Poor recruitment

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
8 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00780975
Sponsor's protocol ID
APL-B-011-02
Status last verified
Nov 2020
First submitted
27 Oct 2008
Last updated
24 Nov 2020
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Aplidin (plitidepsin) in people with Prostate Cancer, run by PharmaMar at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 23 inclusion and 50 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 24 Nov 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 24 Nov 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The Percentage of Patients With a ≥ 50% Prostate-specific Antigen (PSA) Decline Post-therapy (time frame: All patients were followed up to progressive disease, start of a new anti-cancer therapy, death or one year after the last treatment visit of the last patient, whichever occured first). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00780975.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Nov 2020.

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