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Breast CancerPhase 1/2NCT02757651

KORTUC: Intra-tumoural Hydrogen Peroxide as a Radiation Sensitizer in Patients With Locally Advanced/Recurrent Breast Cancer in Terms of Toxicity and Tumour Response

A Phase 1/2 study testing Hydrogen Peroxide in people with Breast Cancer, run by Institute of Cancer Research, United Kingdom at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a study aimed at testing a commonly available and inexpensive chemical (hydrogen peroxide) for safety and activity in sensitising large cancerous lumps in the breast to a standard course of radiotherapy in women with poorly controlled symptoms. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Breast Cancer
What is being tested?
Hydrogen Peroxide
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteUnited Kingdom
Study dates
19 Jan 2017to 12 Nov 2020
Phase
Phase 1/2
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

  • Age over 18 years
  • Primary locally advanced breast cancer, or locally recurrent breast cancer with/without metastases
  • Radical/high dose palliative radiotherapy required for lifetime control of local morbidities
  • Patient physically and mentally fit for radical/high dose palliative radiotherapy
  • Target tumour accessible for intra-tumoural injection
  • At least one tumour diameter ≥30 mm measurable by ultrasound or magnetic resonance imaging
Show all 9Show fewer
  • Patient available for minimum 3 months follow up post-treatment prior to any surgical resection
  • Negative pregnancy test within 7 days of starting radiotherapy in women of child bearing potential and an ability/willingness to protect against pregnancy for 3 months post- radiotherapy
  • Patient offers written informed consent

Who cannot join

  • Prior radiotherapy to the target area
  • Anatomical location \&/or extent of disease difficult to access for safe intra-tumoural drug injections, for example by virtue of contiguous major blood vessels and/or brachial plexus

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • The Royal Marsden NHS Foundation Trust

    London, SW3 6JJ

Other trials in United Kingdom

About this study

Official title: Phase I 'Run in' Study Followed by Randomised Phase II Trial Testing Intra-tumoural Hydrogen Peroxide as a Radiation Sensitizer in Women With Locally Advanced/Recurrent Breast Cancer in Terms of Toxicity and Tumour Response

This is a study aimed at testing a commonly available and inexpensive chemical (hydrogen peroxide) for safety and activity in sensitising large cancerous lumps in the breast to a standard course of radiotherapy in women with poorly controlled symptoms. Laboratory research and initial clinical trials in Japan suggest that 4 to 6 injections of a radiation sensitiser ('KORTUC') based on very dilute (0.5%) hydrogen peroxide injected into cancers under local anaesthetic twice a week during radiotherapy greatly increases the effectiveness of standard doses of radiotherapy alone. The side effects are limited to mild/moderate discomfort at the injection site for up to 24 hours reported by Japanese breast cancer patients in whom this treatment has been tested. Complete tumour shrinkage in 70/71 (98%) primary breast cancers up to 5 cm diameter have been reported by Japanese collaborators.

Read the detailed description

PLEASE NOTE: Phase II of this protocol will now be conducted under protocol CCR5119/IRAS 264012 (NCT03946202)

Aim: To test a slow release gel containing a commonly available and inexpensive chemical (hydrogen peroxide) for safety and activity in sensitizing large cancerous lumps in the breast or armpit to a standard 3-week course of radiotherapy in women with poorly controlled symptoms.

Background: Laboratory research and initial clinical trials conducted in Japan raises the possibility that a simple and inexpensive treatment based on a very dilute (0.5%) hydrogen peroxide injected into cancers under local anaesthetic greatly increases the effectiveness of standard doses of radiotherapy. The side effects appear to be limited to mild/moderate discomfort at the injection site for up to 24 hours in one-third of patients. Rapid, complete and durable tumour disappearance has been reported in 49/55 bulky breast cancers in Japanese women treated using this approach, a response that is at least 3 times the success rate of radiotherapy alone in our own patients and in a contemporary Japanese control population. The inventor, Prof Ogawa of Kochi University, has approached the investigators to lead the further clinical evaluation and commercial development, starting with the proposed early phase trials testing safety and anti-cancer activity described below.

Design and methods: After numbing the skin with local anaesthetic, a specialist doctor (radiologist) or trained radiographer will use ultrasound to guide the injection of a small volume of dilute (0.5%) hydrogen peroxide solution into the tumour twice a week during 3 weeks of standard radiotherapy. The drug is suspended in a natural gel (1% sodium hyaluronate, licensed for treating stiff knee joints) that ensures its slow release over 48 hours. The injection procedure lasts for 10-15 minutes altogether. Tiny oxygen bubbles are released from the hydrogen peroxide which help the radiologist guide the injection of drug to the proper places under the skin. The investigators want to test this approach, starting with a careful study of side effects in 12 patients (pilot study) followed by a randomised trial in 84 patients to test activity against cancer (Phase II). Patients participating in Phase II will either have standard radiotherapy or the same radiotherapy plus the drug under test. Neither the patient nor the doctor will choose who has which treatment, which is allocated randomly. Review of the Pilot study data by an independent committee of experts will be completed before starting the phase II (efficacy) study.

Patient and public involvement: Independent Cancer Patient Voice, a patient advocate group in the field of cancer, is collaborating with the investigators on the research plan, commenting and advising on the content and clarity of the written proposal. This group plays a prominent role in promoting UK clinical research, being represented on the Trial Management Groups of several national randomised cancer clinical trials.

Dissemination: The results of this study will be presented at scientific meetings and at meetings of the patient advocate group in order to judge if the results for safety and activity are promising enough to justify taking the research further.

Conditions
Breast Cancer
Being tested
Hydrogen Peroxide
Medical subject headings
Breast Neoplasms

What participants receive

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

  • Hydrogen PeroxideDrug

    Hydrogen Peroxide

Study groups in NCT02757651
Study groupRoleWhat they receive
Radiotherapy + radiation sensitizerExperimentalPatients in phase I and patients randomised to the test group in phase II will receive standard radiotherapy for breast cancer + a radiation sensitizer
Receives: Drug: Hydrogen Peroxide
Radiotherapy aloneNo interventionPatients randomised to the control group in phase II will receive standard radiotherapy for breast cancer alone.

What is being measured

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

  1. Phase I: Patient reported maximum intra-tumoural pain intensity over duration of treatment

    Measured: During radiotherapy

  2. Phase II: Tumour response 3 months post-radiotherapy according to RECIST 1.1 criteria

    Measured: 3 months months post radiotherapy

Secondary outcomes (4)
  1. Phase I: Proportion of patients with severe pain at any time before and up to 24 hours after any of the KORTUC injections. Server Sever pain is defined as scoring a max grade ≥5 above baseline

    Measured: During radiotherapy and 3 months post radiotherapy

  2. Phase II: Proportion of patients with severe pain at any time before and up to 24 hours after any of the KORTUC injections. Server pain is defined as scoring a max grade ≥5 above baseline Frequency and duration of pain score ≥1 at each time point

    Measured: During radiotherapy & 3 and 24 months post radiotherapy

  3. Phase I: Tumour response 3 months post- radiotherapy according to RECIST 1.1 criteria

    Measured: 3 months post radiotherapy

  4. Phase II: Local progression-free survival at 24 months

    Measured: 24 months post radiotherapy

Timeline

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

  1. First posted2 May 2016 (estimated)
  2. Study start19 Jan 2017
  3. Primary completion12 Nov 2020
  4. Study completion12 Nov 2020

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02757651
Sponsor's protocol ID
CCR4502
Status last verified
Nov 2020
First submitted
27 Apr 2016
Last updated
27 Nov 2020
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Hydrogen Peroxide in people with Breast Cancer, run by Institute of Cancer Research, United Kingdom at 1 site in United Kingdom.

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 9 inclusion and 2 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: finished, as of the sponsor's last update on 27 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 1 site in United Kingdom. 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 combined 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.

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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Phase I: Patient reported maximum intra-tumoural pain intensity over duration of treatment (time frame: During radiotherapy). The study lists 2 primary outcomes in all. 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 27 Nov 2020.

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