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Relapse LeukemiaNCT03987542

Outcome Following Truncation of Asparaginase

An observational study of Relapse Leukemia, run by Birgitte Klug Albertsen at 1 site in Denmark.

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 study aimed to investigate the outcome of patients who had their asparaginase treatment truncated in the NOPHO ALL2008 protocol. Read more about this study

Who is it for?
Ages 1 year to 18 years
Conditions the study is for
Relapse Leukemia
How many people
1,401 participants
Where
1 siteDenmark
Study dates
Jul 2008to Jun 2020
How long will I take part?
3 Years
Phase
Observational
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 1 year to 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Study population: Children aged 1-17.9 years at time of diagnosis.

Who may be able to join

  • Children treated according to the NOPHO ALL2008 protocol from the 1st of July 2008 - 28th of February 2016.

Who cannot join

  • Bilineage ALL
  • Pre-treatment with glucocorticosteroids or other antileukemic agents for more than 1 week
  • ALL predisposition syndromes
  • Previous cancer
  • Off protocol administration of additional chemotherapy during induction therapy
  • Sexually active females not using contraception

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Aarhus University Hospital, Department of Pediatrics Skejby Hospital

    Aarhus, Aarhus N, 8200

Other trials in Denmark

About this study

Official title: Outcome Following Truncation of Asparaginase in the NOPHO ALL2008 Protocol

This study aimed to investigate the outcome of patients who had their asparaginase treatment truncated in the NOPHO ALL2008 protocol.

Read the detailed description

Overall survival for children with ALL is now above 90% in several protocols, but asparaginase associated toxicities still constitutes a significant problem as they, besides causing acute morbidity and mortality, can cause truncation of treatment with a subsequent increased risk of relapse.

The most frequent toxicities causing asparaginase truncations are hypersensitivity, pancreatitis and thrombosis. Especially hypersensitivity constitutes a problem due to silencing antibodies, not only in patients with clinical hypersensitivity but also in patients without clinical symptoms (silent inactivation).

In the NOPHO ALL2008 protocol asparaginase associated toxicities and truncation of asparaginase have been registered since the protocol opened in 2008. In addition asparaginase enzyme activity measurements have been done before every asparaginase administration and analyzed retrospectively.

The primary aim of this study was to investigate if patients with truncation of asparaginase or lack of asparaginase enzyme activity had a different risk of relapse compared to patients who received full asparaginase treatment. Secondary we aimed to explore if patients who received less than 50% of their planned asparaginase dosages had a different risk of relapse compared to those who received 50% or more.

Keywords
Acute lymphoblastic leukemia, Asparaginase, Truncation, Toxicitities
Medical subject headings
Precursor Cell Lymphoblastic Leukemia-Lymphoma

What participants receive

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

Study groups in NCT03987542
Study groupRoleWhat they receive
ExposedPatients who had their asparaginase treatment truncated or had no asparaginase enzyme activity.
UnexposedPatients who did not have their asparaginase treatment truncated and had measurable asparaginase enzyme activity

What is being measured

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

  1. Risk of relapse

    Do patients with truncation of asparaginase treatment or no enzyme activity (truncated) have a different risk of relapse compared to patients who have not been truncated and who have measurable enzyme activity (non-truncated)

    Measured: 5 years

Secondary outcomes (1)
  1. 50% of asparagine doses

    Do patients who receive less than 50% of their planned asparaginase dosages have a different risk of relapse compared to those who receive 50% or more.

    Measured: 5 years

Timeline

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

  1. First posted17 Jun 2019
  2. Study startJul 2008
  3. Primary completionJun 2020
  4. Study completionJun 2020

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Other
Enrolment
1,401 participants (actual)
Target duration
3 Years
IDs, dates and publications
ClinicalTrials.gov ID
NCT03987542
Sponsor's protocol ID
Asparaginase_truncation_NOPHO
Status last verified
May 2022
First submitted
12 Jun 2019
Last updated
20 May 2022
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Gottschalk Hojfeldt S, Grell K, Abrahamsson J, Lund B, Vettenranta K, Jonsson OG, Frandsen TL, Wolthers BO, Marquart HV, Vaitkeviciene G, Lepik K, Heyman M, Schmiegelow K, Albertsen BK. Relapse risk following truncation of pegylated asparaginase in childhood acute lymphoblastic leukemia. Blood. 2021 Apr 29;137(17):2373-2382. doi: 10.1182/blood.2020006583.

    PubMed 33150360

Questions about this trial

What is this clinical trial studying?

An observational study of Relapse Leukemia, run by Birgitte Klug Albertsen at 1 site in Denmark.

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 1 inclusion and 6 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 20 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 Denmark. 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.

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?

Risk of relapse (time frame: 5 years). 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 NCT03987542, which also lists 1 linked publication.

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 20 May 2022.

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