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Acute Lymphoblastic LeukemiaPhase 4NCT01906671

Study on Two Different Formulations of 6-mercaptopurine. Tablet Versus Oral Liquid

A Phase 4 study testing Xaluprine and Puri-Nethol in people with Acute Lymphoblastic Leukemia and 6-mercaptopurine Therapy, run by Kjeld Schmiegelow at 1 site in Denmark.

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 The sponsor has not verified this record for over two years, so it may be out of date.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

Acute lymphoblastic leukemia (ALL) accounts for 30 % of all childhood malignancies. The patients undergo four phases of treatment, finishing with a late maintenance phase in which 6-mercaptopurine and Methotrexate are essential components. Read more about this study

Who is it for?
Ages Up to 18 years
What is being tested?
Xaluprine and Puri-Nethol
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
1 siteDenmark
Study dates
Jun 2013to Nov 2018
Phase
Phase 4
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 Up to 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Childhood acute lymphoblastic leukemia patients, age 0-18 years at diagnosis, treated at the department of pediatrics and adolescent medicine, Rigshospitalet.
  • Informed consent

Who cannot join

  • None

Trial locations and contacts

1 site in 1 country.

Denmark1 site, 1 recruiting
  • Juliane Marie Centret, Rigshospitalet

    Copenhagen, DK-, 2100

    Kjeld Schmiegelow, Professor, +45 35451357, kjeld.schmiegelow@regionh.dk

    Rikke Hebo Larsen, MD, +45 35457932, rikke.hebo.larsen.01@regionh.dk

    Recruiting

Other trials in Denmark

About this study

Official title: Plasma Kinetics of Tablet and Liquid Formulations of 6-mercaptopurine in Childhood Acute Lymphoblastic Leukemia.

Acute lymphoblastic leukemia (ALL) accounts for 30 % of all childhood malignancies. The patients undergo four phases of treatment, finishing with a late maintenance phase in which 6-mercaptopurine and Methotrexate are essential components. Insufficient treatment intensity in this phase is associated with increased risk of relapse. Excessive variation in the bioavailability of 6-mercaptopurine has been observed which can cause both risks of undertreatment/relapse as well as overtreatment with severe side effects.

In the attempt to achieve individualized 6-mercaptopurine dosing different approaches have been pursued. Nonetheless variation in bioavailability remains a problem.

Read more

Earlier, oral tablets of 50 mg (Purinethol) were the only administration form of 6-mercaptopurine and it was primarily designed for adult patients. Challenges with accurate dosing and getting the children to swallow the tablets have been a widespread problem, forcing the caregivers to divide or crush the tablets as well as having to administer different dosages over 2-3 days. Due to these problems, an oral liquid formulation of 6-mercaptopurine (Xaluprine) has been developed. However this oral liquid has only been tested on healthy adult volunteers, and not on the target group, childhood patients. This project will assess the bioavailability and plasma kinetics of oral liquid and tablet formulation of 6-mercaptopurine in children with acute lymphoblastic leukemia.

The investigators hypothesize to observe comparable plasma kinetics, in children with acute lymphoblastic leukemia when treated with 6-mercaptopurine in the form of a tablet and oral liquid formulation, as previously observed in healthy adults.

Being tested
Xaluprine, Puri-Nethol
Keywords
6-mercaptopurine, Drug formulation
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.

  • XaluprineDrug

    Comparison of plasma kinetics after administration of 6-mercaptopurine in the form of a tablet (Puri-Nethol) and in the form of an oral liquid formulation (Xaluprine). Each patient will be included in both arms of the study, because of the cross-over design.

  • Puri-NetholDrug

    Comparison of plasma kinetics after administration of 6-mercaptopurine in the form of a tablet (Puri-Nethol) and in the form of an oral liquid formulation (Xaluprine). Each patient will be included in both arms of the study, because of the cross-over design.

Study groups in NCT01906671
Study groupRoleWhat they receive
Puri-NetholExperimentalTablet formulation of 6-mercaptopurine
Receives: Drug: Xaluprine; Drug: Puri-Nethol
XaluprineExperimentalOral liquid formulation of 6-mercaptopurine
Receives: Drug: Xaluprine; Drug: Puri-Nethol

What is being measured

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

  1. Time to maximum concentration (Tmax)

    Time to maximum concentration (Tmax)

    Measured: Will be measured within a six months after collection of the blood samples

Secondary outcomes (3)
  1. Area under curve(AUC)

    Area under curve(AUC)

    Measured: Will be measured within six months after collection of the blood samples

  2. Maximum concentration (Cmax)

    Maximum concentration (Cmax)

    Measured: Will be measured within six months after collection of the blood samples

  3. Time to half-life (T½)

    Time to half-life (T½)

    Measured: Will be measured within six months after collection of the blood samples

Timeline

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

  1. First posted24 Jul 2013 (estimated)
  2. Study startJun 2013
  3. Primary completionSep 2018 (estimated)
  4. Study completionNov 2018 (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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
16 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01906671
Sponsor's protocol ID
6-MP formulation
Other IDs
2013-001236-21
Status last verified
Apr 2018
First submitted
16 Jul 2013
Last updated
20 Apr 2018
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Undecided

Publications

  • Larsen RH, Hjalgrim LL, Grell K, Kristensen K, Pedersen LG, Brunner ED, Als-Nielsen B, Schmiegelow K, Nersting J. Pharmacokinetics of tablet and liquid formulations of oral 6-mercaptopurine in children with acute lymphoblastic leukemia. Cancer Chemother Pharmacol. 2020 Jul;86(1):25-32. doi: 10.1007/s00280-020-04097-x. Epub 2020 Jun 9.

    PubMed 32519032

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Xaluprine and Puri-Nethol in people with Acute Lymphoblastic Leukemia and 6-mercaptopurine Therapy, run by Kjeld Schmiegelow 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 2 inclusion and 1 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 20 Apr 2018. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Time to maximum concentration (Tmax) (time frame: Will be measured within a six months after collection of the blood samples). 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 NCT01906671, 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 Apr 2018.

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