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Metastatic Castrate- Resistant Prostate CancerPhase 1NCT03041285

Idronoxil Suppository Combine With Radiotherapy for Metastatic Prostate Cancer

A Phase 1 study testing idronoxil (NOX66) suppository and Stereotactic Body Radiation Therapy in people with Metastatic Castrate- Resistant Prostate Cancer, run by Royal North Shore Hospital at 1 site in Australia.

Terminated

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

Official record
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Trial summary

The aim of the study is to determine the toxicity of Idronoxil (NOX66) when used in combination with palliative radiotherapy for metastatic prostate cancer Read more about this study

Who is it for?
Ages 18 years and older, men only
What is being tested?
idronoxil (NOX66) suppository and Stereotactic Body Radiation Therapy
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1 participants
Where
1 siteAustralia
Study dates
31 Aug 2017to 17 Sep 2019
Phase
Phase 1
Are there results?
None posted in the registry

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
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Confirmed metastatic prostate cancer that is castrate-resistant.
  • 2-3 lesions suitable for radiotherapy.
  • ECOG Performance status 0-2.
  • Adequate bone marrow, hepatic and renal function
  • At least 4 weeks must have elapsed prior to commencement of idronoxil treatment since prior chemotherapy, investigational drug or biologic therapy

Who cannot join

  • Chemotherapy regimens with delayed toxicity within the last 4 weeks.
  • Any situation where the use of suppository therapy is contra-indicated or impractical(eg. chronic diarrhoea, colostomy, ulcerative colitis).
  • No concurrent systemic chemotherapy or biologic therapy is allowed.
  • Psychiatric disorder or social or geographic situation that would preclude study participation.
  • Patient unable to provide consent

Trial locations and contacts

1 site in 1 country.

Australia1 site
  • Royal North Shore Hospital

    St Leonards, New South Wales, 2065

Other trials in Australia

About this study

Official title: Phase I Study of Idronoxil Combined With Radiation Treatment in Men With Metastatic Prostate Cancer

The aim of the study is to determine the toxicity of Idronoxil (NOX66) when used in combination with palliative radiotherapy for metastatic prostate cancer

Read the detailed description

Who is it for? Patient may be eligible for this study if they have late stage metastatic prostate cancer which is castrate resistant and have metastatic lesions that are suitable for radiotherapy.

Study details There are two groups of patients in this study and no randomisation. The two groups will have two different doses of idronoxil (NOX66), representing a 2-step dose escalation. Both groups receive the same standard radiotherapy dose.

Group 1 will receive the lower dose (400 mg) of idronoxil suppository daily and Group 2 800 mg daily.

Recruitment into Group 2 will only commence once all Group 1 patients have completed the 13-day treatment course of idronoxil suppository without excessive unexpected toxicity. The total treatment duration will be 13-15 days for both groups depends on whether radiotherapy is given on consecutive days or over the weekend.

Day 0: commence idronoxil (NOX66) Days 1-5: 1 or 2 lesions will receive 20 Gy (radiotherapy dose unit) radiotherapy in 5 daily fractionated doses and continue daily NOX66 Day 6-12: Continue NOX66 (the duration of NOX66 will be 13-15 days depends on whether radiotherapy is given on consecutive days or over the weekend).

Both groups will have prostate-specific membrane antigen positron emission tomography (PSMA-PET) scans before starting treatment and three months after the last fraction of radiotherapy to assess treatment response.

Being tested
idronoxil (NOX66) suppository, Stereotactic Body Radiation Therapy

What participants receive

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

  • idronoxil (NOX66) suppositoryDrug

    Also called NOX66

    Patients in Group 1 will be given 400mg of Idronoxil suppository (NOX66) (1 suppository) daily from Day 0(1 day before radiotherapy) until 7 days after radiotherapy. Group 2 will be given Idronoxil (NOX66) 800mg (2 suppositories) daily from Day 0 until 7 days after radiotherapy.

    All patients will receive one course of Stereotactic Body Radiation Therapy (SBRT), to be delivered in 20 Gray in 5 fractions.

    Radiotherapy session will involve irradiation of 1-2 lesions.

    .

  • Stereotactic Body Radiation TherapyRadiation

    All patients (Group 1 and Group 2) will receive one course of Stereotactic Body Radiation Therapy (SBRT), to be delivered in 20 Gray in 5 daily fractions on consecutive days. Radiotherapy session (week 1) will involve irradiation to 1-2 lesions.

Study groups in NCT03041285
Study groupRoleWhat they receive
Group 1 NOX66 400mg and SBRTExperimentalGroup 1 patients will receive 400mg of Idronoxil (NOX66) suppository (1 suppository) daily from Day 0 (1 day before radiotherapy) until 7 days after completion of radiotherapy. Stereotactic Body Radiation Therapy will be given on Days1-5 (5 fractions). Total treatment course is 13-15 days, depends on whether radiotherapy is given on consecutive days or over the weekend.
Receives: Drug: idronoxil (NOX66) suppository; Radiation: Stereotactic Body Radiation Therapy
Group 2 NOX66 800mg and SBRTExperimentalGroup 2 patients will receive 800mg of Idronoxil (NOX66) suppository (2 suppositories) daily from Day 0 (1 day before radiotherapy) until 7 days after completion of radiotherapy. Stereotactic Body Radiation Therapy will be given on Days1-5 (5 fractions). Total treatment course is 13-15 days, depends on whether radiotherapy is given on consecutive days or over the weekend.
Receives: Drug: idronoxil (NOX66) suppository; Radiation: Stereotactic Body Radiation Therapy

What is being measured

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

  1. safety of Idronoxil dose escalation

    Toxicity and relationship with study drug NOX66 will be assessed using Common Terminology Criteria for Adverse Events (CTCAE) V4.3

    Measured: From start of NOX66 with stereotactic radiotherapy up to three months post treatment.

Secondary outcomes (1)
  1. evidence of clinical tumour response

    PSMA-PET CT will be done before and 3 months after treatment. The change in SUV in PSMA PET will be used to assess tumour metabolic response.

    Pre and post treatment tumour size on CT will be measured and RECIST criteria will be used to measure tumour response.

    Measured: 3 months post treatment

Timeline

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

  1. First posted2 Feb 2017 (estimated)
  2. Study start31 Aug 2017
  3. Primary completion17 Sep 2019
  4. Study completion17 Sep 2019

Why it stopped: have difficulty finding eligible participants

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 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Model description
Group 1 (6 participants) will receive 400mg of Idronoxil (NOX66) daily in the form of one suppository. Group 2 (6 participants) will receive 800mg of Idronoxil daily (two suppositories). Group 2 will only commence once all group 1 participants have completed their treatment course and have experienced no toxicity greater than grade 2 according CTCAE version 4.03 for adverse events assessment.
Masking
None (open label)
Enrolment
1 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03041285
Sponsor's protocol ID
NOX66 version 1
Status last verified
May 2022
First submitted
20 Jan 2017
Last updated
11 May 2022
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing idronoxil (NOX66) suppository and Stereotactic Body Radiation Therapy in people with Metastatic Castrate- Resistant Prostate Cancer, run by Royal North Shore Hospital at 1 site in Australia.

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 5 inclusion and 5 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 11 May 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Australia. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

Are results available for this study?

The study was stopped early (reason given: have difficulty finding eligible participants). Results are not available in the source record.

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?

safety of Idronoxil dose escalation (time frame: From start of NOX66 with stereotactic radiotherapy up to three months post treatment.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 11 May 2022; AzTrials last refreshed its copy on 7 Nov 2026.

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