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Invasive Fungal InfectionPhase 3VORI911NCT00893555

Pharmacologic Optimization of Voriconazole

A Phase 3 study testing voriconazole and voriconazole (dosing according to the SPC) in people with Invasive Fungal Infection and Hematological Malignancy, run by Jan-Willem C Alffenaar at 1 site in Netherlands.

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

The objective of this study proposal is to determine whether pharmacologic optimization of voriconazole by means of therapeutic drug monitoring (TDM) results in improved patient outcomes (efficacy and safety) and is more cost-effective compared to the current standard of care. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
voriconazole and voriconazole (dosing according to the SPC)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
189 participants
Where
1 siteNetherlands
Study dates
Apr 2009to Jan 2017
Phase
Phase 3
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

  • are at least 18 years of age
  • have received chemotherapy for haematological malignancies or have received a hematopoietic stem cell transplant
  • proven, probable or possible invasive fungal disease according to the EORTC/MSG criteria
  • treatment with voriconazole

Who cannot join

  • allergic to voriconazole or its excipients
  • age below 18 years

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • University Medical Center Groningen

    Groningen, Provincie Groningen, 9713GZ

Other trials in Netherlands

About this study

Official title: Pharmacologic Optimization of Voriconazole - a Prospective Clustered Group-randomized Cross-over Trial of Therapeutic Drug Monitoring

The objective of this study proposal is to determine whether pharmacologic optimization of voriconazole by means of therapeutic drug monitoring (TDM) results in improved patient outcomes (efficacy and safety) and is more cost-effective compared to the current standard of care.

Read the detailed description

Patients with haematological malignancies and chemotherapy-induced prolonged neutropenia are at risk for severe bacterial and fungal infections. These opportunistic infections can result in prolonged hospital stay, increases costs and greater mortality. Voriconazole has now been recommended as the first line agent for invasive pulmonary aspergillosis. Retrospective observational studies of voriconazole serum concentration suggest that serum concentration correlate with toxicity and clinical response. These observations were however made in small series of patients and data were collected retrospectively. These inherent methodological flaws make it impossible to draw definite conclusions about the effect of voriconazole serum level monitoring on the outcome of IA, and therefore considered insufficient proof to recommend voriconazole concentration determination in blood as standard of care. The impact that so called serum concentration guided dosing of voriconazole will have on treatment success can only be evaluated through a prospective randomized clinical trial.

For this purpose, we designed a prospective stratified cluster randomized cross-over trial of therapeutic drug monitoring in patients with haematological disease who have developed IA. The order of periods (TDM or standard of care, each 12 months) will be randomized per centre. During the TDM episode, the voriconazole dosage will be adjusted to achieve trough blood concentrations in a predefined window of 2-5 mg/L. A sample size of n=192 is needed to detect a 20% absolute reduction in the number of treatment failures (40% to 20 %) compared to control.

Being tested
voriconazole, voriconazole (dosing according to the SPC)
Keywords
Invasive fungal infection, hematological malignancy, voriconazole, therapeutic drug monitoring
Medical subject headings
Invasive Fungal Infections, Hematologic Neoplasms

What participants receive

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

  • voriconazoleDrug

    Also called Vfend

    TDM (through level of 2-5mg/L).

  • voriconazole (dosing according to the SPC)Drug

    Also called Vfend

    No serum concentrations are determined

Study groups in NCT00893555
Study groupRoleWhat they receive
controlActive comparatorVoriconazole dosing based on SPC
Receives: Drug: voriconazole (dosing according to the SPC)
TDMExperimentalVoriconazole serum concentration based dosing
Receives: Drug: voriconazole

What is being measured

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

  1. The primary clinical endpoint will be a global response consisting of a combined endpoint of toxicity and response to therapy (clinical, microbiologic and radiologic responses) 28 days after starting treatment with voriconazole.

    Measured: 28 days

Secondary outcomes (6)
  1. Overall mortality

    Measured: 7 and 28 days; 12 weeks

  2. % of serum concentrations within 2-5mg/L

    Measured: 7 and 28 days; 12 weeks

  3. % switched to salvage therapy or measured concentration level in control arm

    Measured: 7 and 28 days; 12 weeks

  4. Side effects

    Measured: 7 and 28 days; 12 weeks

  5. Time to global response

    Measured: 7 and 28 days; 12 weeks

  6. Cost-effectiveness of TDM

    Measured: 7 and 28 days; 12 weeks

Timeline

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

  1. First posted6 May 2009 (estimated)
  2. Study startApr 2009
  3. Primary completionNov 2016
  4. Study completionJan 2017

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
189 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00893555
Sponsor's protocol ID
VORI911
Acronym
VORI911
Status last verified
Jan 2017
First submitted
4 May 2009
Last updated
12 Jan 2017
Results posted
No
Data monitoring committee
Yes

Publications

  • Klomp SD, Veringa A, Alffenaar JC, de Boer MGJ, Span LFR, Guchelaar HJ, Swen JJ. Inflammation altered correlation between CYP2C19 genotype and CYP2C19 activity in patients receiving voriconazole. Clin Transl Sci. 2024 Jul;17(7):e13887. doi: 10.1111/cts.13887.

    PubMed 39010708
  • Veringa A, Bruggemann RJ, Span LFR, Biemond BJ, de Boer MGJ, van den Heuvel ER, Klein SK, Kraemer D, Minnema MC, Prakken NHJ, Rijnders BJA, Swen JJ, Verweij PE, Wondergem MJ, Ypma PF, Blijlevens N, Kosterink JGW, van der Werf TS, Alffenaar JC; Voriconazole ZonMw Study Group. Therapeutic drug monitoring-guided treatment versus standard dosing of voriconazole for invasive aspergillosis in haematological patients: a multicentre, prospective, cluster randomised, crossover clinical trial. Int J Antimicrob Agents. 2023 Feb;61(2):106711. doi: 10.1016/j.ijantimicag.2023.106711. Epub 2023 Jan 13.

    PubMed 36642232

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing voriconazole and voriconazole (dosing according to the SPC) in people with Invasive Fungal Infection and Hematological Malignancy, run by Jan-Willem C Alffenaar at 1 site in Netherlands.

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 4 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 12 Jan 2017. 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 Netherlands. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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?

The primary clinical endpoint will be a global response consisting of a combined endpoint of toxicity and response to therapy (clinical, microbiologic and radiologic responses) 28 days after starting treatment with voriconazole. (time frame: 28 days). 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 NCT00893555, which also lists 2 linked publications.

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 12 Jan 2017.

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