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MelanomaPhase 2INTRANSNCT03754140

Intralesional Sclerosant for in Transit and Cutaneous Melanoma Metastases

A Phase 2 study testing Polidocanol Injection in people with Melanoma and In-Transit Metastasis of Cutaneous Melanoma, run by Melanoma Institute Australia at 1 site in Australia.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

There is currently an urgent need for low cost and well tolerated intralesional agents for the management of in transit and cutaneous melanoma metastases that are unsuitable for, or resistant to, other therapies. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Polidocanol Injection
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
1 siteAustralia
Study dates
20 May 2020to Dec 2022
Phase
Phase 2
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
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Histologically confirmed in transit and/or cutaneous melanoma metastases unsuitable for, or with progressive disease despite systemic, surgical, intra-arterial, topical or radiation therapies
  • A minimum of 2 accessible lesions

Who cannot join

  • Periocular lesions
  • Severe renal impairment defined as an estimated glomerular filtration rate <20ml/min/1.73sqm
  • Sever liver function abnormality defined as aspartate aminotransferase and / or alanine aminotransferase > 3 x upper limit of normal and / or bilirubin > 1.5 x upper limit of normal
  • known hypersensitivity to polidocanol or its exipients
  • Patients unavailble for the full study duration (of a 4 week screening period and 8 week treatment period) because of general frailty, geographical or social reasons
  • Pregnant or breast feeding female patients
  • Patients receiving topical or radiation therapy to the in transit and / or cutaneous lesions within 4 weeks of planned start of study treatment (patients receiving current systemic immunotherapy which is deemed appropriate to continue, despite progression of disease in the skin, in order to reduce the likelihood of visceral metastases are eligible)
  • Patients receiving sclerosants for other indications within 4 weeks of planned start of study treatment or during study treatment.

Trial locations and contacts

1 site in 1 country.

Australia1 site
  • Royal Prince Alfred Hospital

    Camperdown, New South Wales, 2050

Other trials in Australia

About this study

There is currently an urgent need for low cost and well tolerated intralesional agents for the management of in transit and cutaneous melanoma metastases that are unsuitable for, or resistant to, other therapies. This pilot study will determine whether intralesional injections of the sclerosant polidocanol into intransit and cutaneous melanoma lesions shows promise for efficacy, safety and ease of use that will enable this inexpensive and widely available agent to undergo further evaluation.

Read the detailed description

Many patients with metastatic melanoma have in transit and other cutaneous metastases. Untreated, these lesions become eroded, haemorrhagic and symptomatic. When systemic therapy is not warranted, has failed or is not tolerated for in transit disease, and when surgery is not feasible or appropriate, other local treatments are needed. Current options include isolated limb infusion for bulky limb disease, topical immunotherapy with contact sensitisers and imiqiuimod for superficial, nonbulky disease or radiation therapy. Intralesional (IL) agents such as Rose Bengal (PV-10, Provectus) and Talimogene laherparepvec (T-Vec, Amgen) have been used for patients with limited numbers of cutaneous metastases with reported overall response rates of 51% and 26% respectively. It is thought that these IL agents can incite regional or even systemic anti-tumour immune responses, thus providing benefit beyond the individual injected lesions. Use of PV-10, which is not an intrinsic immune modulator, was associated with regression of untreated bystander lesions in 27% of patients.

T-Vec is not currently available as a subsidised product in Australia and PV-10 is not currently accessible outside of dual-agent systemic/IL clinical trials. Intralesional injection of the antimetabolites 5-fluorouracil and methotrexate has been used successfully for the treatment of cutaneous squamous cell carcinoma, but the efficacy of these agents in melanoma is unknown. Importantly, the investigator's in transit melanoma patients usually have multiple, often very numerous lesions, making IL injection with adequate volumes of antimetabolites difficult without significant risk of systemic haematologic, hepatic and renal side effects.

Hence there is currently an urgent need for tolerable, low cost and accessible intralesional therapies for in transit and cutaneous melanoma metastases.

This study aims to evaluate the efficacy and tolerability of intralesional therapy with the sclerosant polidocanol for treatment of in transit and cutaneously metastatic melanoma unsuitable for other therapies.

Intravascularly injected sclerosants have a long history of safe and effective use in the treatment of varicose veins. Sclerosants have also been used intralesionally for the treatment of cutaneous lesions such as squamous cell carcinoma, pyogenic granulomas, Kaposi sarcoma and angiomas. They are inexpensive, readily accessible and can be easily administered in the clinic to multiple metastases. By inciting cell death within melanoma metastases in the skin, they may also incite anti-tumour immune responses in untreated bystander lesions, as is observed with IL PV-10 therapy.

Being tested
Polidocanol Injection
Keywords
Sclerosant, Polidocanol
Medical subject headings
Melanoma

What participants receive

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

  • Polidocanol InjectionDrug

    Also called Aethoxysklerol

    Sclerotic agent

Study groups in NCT03754140
Study groupRoleWhat they receive
Polidocanol InjectionExperimentalPolidocanol (3%) 0.1ml intralesional injection per 10mm diameter lesion
Receives: Drug: Polidocanol Injection

What is being measured

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

  1. Clinical efficacy of interlesional polidocanol injection assessed by the size of in transit melanoma metastases after treatment

    Proportion of patients with a complete response (complete disappearance of treated lesions), partial response (a 25% or more reduction in size of treated lesions), stable disease (a 0 to 24% reduction in size of treated lesions) or disease progression (any increase in size of treated lesions)

    Measured: 8 weeks

Secondary outcomes (4)
  1. Incidence of treatment related adverse events

    Treatment related adverse events using the CTCAE version 4 terms and grading.

    Measured: 8 weeks

  2. Bystander treatment effect on untreated intransit melanoma metastases

    Proportion of patients with a complete response (complete disappearance of untreated lesions), partial response (a 25% or more reduction in size of untreated lesions), stable disease (a 0 to 24% reduction in size of untreated lesions) or disease progression (any increase in size of untreated lesions)

    Measured: 8 weeks

  3. Bystander treatment effect on the proportion of tumour infiltrating immune markers in treated and untreated melanoma lesions

    The proportion (%) of tumour-infiltrating immune markers: CD4, CD8 and FoxP3 T cell markers, CD20 (B cell), CD16 and CD56 Natural Killer (NK) cell markers, Ki67 marker of proliferation, CD31 (endothelial cells) and CD68 and CD163 (macrophages) detected at baseline and 1 week after intralesional injection by immunohistochemistry. The same analysis will be undertaken in a minimuim of one untreated lesion detected at baseline and at anytime between 1 and 8 weeks. Change in the proportion (%) of immune markers will be ,made within each lesion and between each lesion.

    Measured: 8 weeks

  4. Bystander treatment effect on tumour viabilty in treated and untreated melanoma lesions

    The proportion of residual non-necrotic melanoma cells detected histolologcally in treated and untreated lesions one week after intralesional injection.

    Measured: 8 weeks

Timeline

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

  1. First posted27 Nov 2018
  2. Study start20 May 2020
  3. Primary completionDec 2022 (estimated)
  4. Study completionDec 2022 (estimated)

Why it stopped: Unable to identify eligible patients within planned timeframe

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
Model description
Open label, single arm pilot study
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03754140
Sponsor's protocol ID
HREC/18/RPAH 621
Acronym
INTRANS
Status last verified
Jul 2022
First submitted
31 Oct 2018
Last updated
14 Jul 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Polidocanol Injection in people with Melanoma and In-Transit Metastasis of Cutaneous Melanoma, run by Melanoma Institute Australia 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 2 inclusion and 8 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: withdrawn, as of the sponsor's last update on 14 Jul 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 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?

The study was withdrawn before enrolling participants, so there are no results.

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?

Clinical efficacy of interlesional polidocanol injection assessed by the size of in transit melanoma metastases after treatment (time frame: 8 weeks). 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 14 Jul 2022.

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