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Central Nervous System Tumor, PediatricPhase 1/25-ALANCT02050243

The Use of 5-aminolevulinic Acid (ALA) as an Intraoperative Tumor Marker for Resection of Pediatric Central Nervous System (CNS) Tumors

A Phase 1/2 study testing 5ALA in people with Central Nervous System Tumor, Pediatric, run by Tel-Aviv Sourasky Medical Center at 1 site in Israel.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Surgery is the cornerstone treatment of most pediatric CNS tumors, including astrocytomas, ependymomas, medulloblastomas, and many other pathologies. In most pediatric CNS tumors, the aim of surgery is maximal tumor resection, while preserving neurological function. Read more about this study

Who is it for?
Ages 3 to 18 years
Conditions the study is for
Central Nervous System Tumor, Pediatric
What is being tested?
5ALA
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
100 participants
Where
1 siteIsrael
Study dates
Feb 2014to Feb 2017
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 3 to 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Age 3 -18 years old
  • Any CNS related pathology (including intraaxial and extraaxial tumors, intracranial or spinal intradural) that is planned for either open (microscopic) resection (or biopsy), or lesions undergoing stereotactic biopsies.
  • Parental consent
  • No personal or familial (1st degree) history of porphyria
  • Liver function test within normal limits (alanine aminotransferase (ALT), aspartate aminotransferase (AST)<2 * upper normal limit)
  • Normal renal function (Cr <2)

Who cannot join

  • Surgery with no microscopic use (i.e. purely endoscopic surgeries)
  • History of hepatic disease within last 12 months
  • History of cutaneous photosensitivity, hypersensitivity to porphyrins, photodermatosis, exfoliative dermatitis, or porphyria
  • Inability to comply with photosensitivity precautions

Trial locations and contacts

1 site in 1 country.

Jonathan Roth, MD contact

972-524262095

jonaroth@gmail.com

Israel1 site
  • Department of pediatric neurosurgery

    Tel Aviv, Israel, 64239

    Jonathan Roth, MD, 972-524262095, jonaroth@gmail.com

    Jonathan Roth, MD

Other trials in Israel

About this study

Official title: The Use of 5-aminolevulinic Acid (ALA) as an Intraoperative Tumor Marker for Resection of Pediatric CNS Tumors

Surgery is the cornerstone treatment of most pediatric CNS tumors, including astrocytomas, ependymomas, medulloblastomas, and many other pathologies.

In most pediatric CNS tumors, the aim of surgery is maximal tumor resection, while preserving neurological function. Extent of tumor residual has been shown to be a major prognostic factor for progression free survival (PFS), and survival in several malignant and low-grade tumors such as medulloblastomas, ependymomas, and astrocytic tumors.

Read more

5-aminolevulinic acid (5-ALA) has been shown to be valuable in intraoperative marking of various cancers. Following oral admission, during surgery, the tumor tissue is illuminated by blue light. Tumor cells tend to metabolize 5-ALA to a porphyrin named protoporhyrin IX (PpIX). PpIX reacts with the blue light and emits a pinky color (- fluorescence). This enables the surgeon to better identify tumor cells and perform a more extensive resection.

Over recent years, many studies have proven the efficacy using 5-ALA for resecting various intracranial and spinal tumors, thus achieving a better tumor control.

In the suggested study, we propose using the same technique for various pediatric central nervous system tumors.

We will focus on the correlation between various pathologies and the fluorescence, trying to deduce the role of 5-ALA in resection of specific pathologies.

Also, we will study the safety of 5-ALA use in the pediatric population.

Read the detailed description

Following the above general description, eligible children will receive 5-aminolevulinic acid (5ALA) prior to surgery.

During surgery, careful attention will be payed to the fluorescence from the tumor, as well as the ability to differentiate between tumor and non tumorous tissue.

Comparisons between fluorescence and pathologies will be performed. Additionally, careful documentation of side effects will be done, to increase the safety of 5ALA use.

Being tested
5ALA
Keywords
pediatrics, brain tumor, CNS, fluorescence, 5ALA
Medical subject headings
Central Nervous System Neoplasms, Brain Neoplasms

What participants receive

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

  • 5ALADrug

    20mg/kg of oral suspension of 5ALA

Study groups in NCT02050243
Study groupRoleWhat they receive
5ALAExperimentalAll included patients will receive 20mg/kg of 5ALA (oral suspension) about 3 hours prior to surgery
Receives: Drug: 5ALA

What is being measured

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

  1. sensitivity of 5ALA fluorescence to intraoperatively detect pediatric CNS tumor tissue

    about 3hour following the 5ALA admission, the patient undergoes surgery. during surgery, global impression of tumor fluorescence will be appreciated (none, inhomogenous, intense homogenous) additionally, tumor samples will be taken from various regions, including various fluorescence regions, to try and correlate tumor regions (e.g. necrosis and viable tumor) with fluorescence (and measure the sensitivity of the 5ALA to the specific tumor)

    Measured: up to 2 weeks

  2. number of patients with 5ALA related side effects

    5ALA is known to cause skin hypersensitivity reaction following direct sun light exposure, during the first 48 hours after admission. also, transient elevation in liver enzymes have been documented.

    the investigators will supervise these reactions during the postoperative phase

    Measured: 2 weeks

Timeline

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

  1. First posted30 Jan 2014 (estimated)
  2. Study startFeb 2014
  3. Primary completionFeb 2016 (estimated)
  4. Study completionFeb 2017 (estimated)

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02050243
Sponsor's protocol ID
TASMC-13-JR-528-CTIL
Acronym
5-ALA
Status last verified
Jan 2014
First submitted
20 Nov 2013
Last updated
30 Jan 2014
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing 5ALA in people with Central Nervous System Tumor, Pediatric, run by Tel-Aviv Sourasky Medical Center at 1 site in Israel.

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 6 inclusion and 4 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: status not confirmed, as of the sponsor's last update on 30 Jan 2014. 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 Israel. 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?

Results are not available in the source record.

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

Contact Jonathan Roth, MD (972-524262095, jonaroth@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

sensitivity of 5ALA fluorescence to intraoperatively detect pediatric CNS tumor tissue (time frame: up to 2 weeks). 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 30 Jan 2014.

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