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TerminatedNCT03655821IMPROVE-IIUpdated May 13, 2022

Dose Individualization of Pemetrexed - IMPROVE-II

A Phase 4 interventional study of Pemetrexed in Non Small Cell Lung Cancer and Mesothelioma, sponsored by Radboud University Medical Center. Terminated at 5 sites in Netherlands. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-05-13.

Sponsored by Radboud University Medical Center · Phase 4, Interventional, and Treatment

Why this study was terminated
81 patients included, difficult inclusion and full inclusion would not change the results
Phase
Phase 4
Study type
Interventional
Enrollment
81
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Rationale:

Pemetrexed is a multi-targeted folate antagonist, which is primarily indicated for the treatment of advanced non-small cell lung cancer (NSCLC) and mesothelioma. Dosing of cytotoxic agents like pemetrexed requires balancing the dual risk of sub-therapy and toxicity. Administration of pemetrexed to patients with a creatinine clearance \<45 ml/min is currently not advised. Pemetrexed is dosed based on body surface area (BSA), while renal function and dose are the sole determinants for systemic exposure. This causes 3 major issues:

  1. In patients with renal dysfunction, BSA-based dosing may lead to haematological toxicity
  2. Patients have to discontinue treatment due to declining renal function, and are withheld effective treatment
  3. Even in patients with adequate renal function (GFR >45 ml/min) treatment may be improved by individualized dosing based on renal function, resulting in less toxicity. Also, BSA-based dosing may lead to ineffective therapy in patients with above average renal function.

The investigators aim to address these problems.

Objective: The overall main objective is to develop a safe and effective individualized dosing regimen for pemetrexed.

Study design: IMPROVE-II is an open label, double arm, randomized study to compare renal function-based dosing of pemetrexed versus BSA-based dosing on attainment of therapeutic exposure.

Study population: IMPROVE-II includes 94 patients with NSCLC or mesothelioma that are eligible for pemetrexed treatment.

Intervention: patients will be randomized in a 1:1 ratio to Arm A (BSA-based dosing according drug label) or to Arm B (renal function based dosing). The renal function-based dose will be calculated to reach the target AUC. Pharmacokinetic assessment after administration will be performed after the first pemetrexed dose in both arms.

Main study endpoints: The fraction (percentage) of patients with attainment of therapeutic exposure with BSA-based dosing versus renal function-based dosing.

Nature and extent of the burden and risks associated with participation, benefit and group relatedness:

The investigators consider the extra burden from participating in the planned studies limited. The extra interventions compared to routine care, consist of sampling extra blood. The pharmacokinetic assessments require placement of one additional intravenous catheter. To ensure minimal impact of study participation on daily life, a limited sampling strategy will be used. Patients may benefit from participating in IMPROVE I and -II, as they will be treated with a potentially safe and effective drug that is dosed individually, which prevents toxic exposure.

02

Conditions studied

03

In context

Lung Neoplasms

7,243 studies on the registry are indexed under Lung Neoplasms; 1,557 are open to participants now.

This study's enrollment of 81 is above the median of 60 across 5,295 interventional studies indexed under Lung Neoplasms.

Browse Lung Neoplasms studies →

Lead sponsor

Radboud University Medical Center is the lead sponsor of 959 studies on the registry; 134 are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. ≥18 years old
  2. Eligible for treatment with pemetrexed-based chemotherapy
  3. Creatinine clearance >45ml/min
  4. Eastern Cooperative Oncology Group (ECOG) performance score of 0-2
  5. Subject is able and willing to sign the Informed Consent Form

Exclusion criteria

Exclusion Criteria:

  1. Conditions that affect haemostasis in a way that blood drawing is complicated (to be assessed by physician)
  2. Contraindications for treatment with pemetrexed in line with the summary of product characteristics (SmPC) (except for creatinine clearance \<45 ml/min in IMPROVE-I)

    1. Hypersensitivity to the active substance or to any of the excipients
    2. Pregnancy or lactation
    3. Concomitant yellow fever vaccine
  3. The presence of clinically relevant pharmacokinetic interactions, according to the current SmPC
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
81 participants (actual)

Study arms

  • Active comparator
    Arm A (BSA-based dosing)

    Dosing of pemetrexed is based on BSA according drug label

    Drug: Pemetrexed

  • Experimental
    Arm B (renal function based dosing)

    Dosing of pemetrexed is based on renal function, calculated to reach the target AUC.

    Drug: Pemetrexed

Interventions

  • DrugPemetrexed

    Dosing is either based on BSA or renal function

06

What researchers measure

Primary outcomes

  1. Exposure (AUC)

    mg\*h/l

    Time frame: 24 hours

  2. The fraction (percentage) of patients with attainment of therapeutic exposure with BSA-based dosing versus renal function-based dosing.

    The fraction (percentage) of patients with attainment of therapeutic exposure defined as an AUC of 164 mg\*h/l ±25%, with pemetrexed dosing based on renal function versus BSA-based dosing.

    Time frame: 3 months

Secondary outcomes

  1. Population Clearance (Cl)

    L/h

    Time frame: 3 months

  2. Population Intercompartmental Clearance (Q)

    L/h

    Time frame: 3 months

  3. Population Central Volume of Distribution (V1)

    L

    Time frame: 24 hours

  4. Population Peripheral Volume of Distribution (V2)

    L

    Time frame: 3 months

  5. Performance of different renal function algorithms to predict pemetrexed

    Significant change in objective function value (OFV) (\<3.84 with 1 degree of freedom)

    Time frame: 3 months

  6. Performance of different renal function algorithms to predict pemetrexed pharmacokinetics (decrease in variability)

    Decrease in clearance variablity (%)

    Time frame: 3 months

  7. Hematologic assessment during dosing based on renal function in patients with a creatinine clearance >45ml/min versus dosing based on BSA.

    Complete blood count (no per liter)

    Time frame: 5 days

  8. The incidence of hematologic dose limiting toxicities (DLT) and adverse events, as measured with the CTCAE V4'

    through listing

    Time frame: 3 months

  9. The incidence of non-hematologic dose limiting toxicities (DLT) and adverse events, as measured with the CTCAE V4

    through listing

    Time frame: 3 months

  10. The incidence of toxicity-related dose reductions, treatment delays and treatment discontinuation

    through listing

    Time frame: 3 months

  11. Quality of life measured with the EORTC QLQ-C30/L13 questionnaire

    0-100 scale

    Time frame: 3 months

  12. In silico evaluation of neutropenic response

    Simulation of risk for neutropenic response

    Time frame: 1 year

  13. Neutropenia related costs

    Euros

    Time frame: 1 year

07

Study locations

5 sites
  • Jeroen Bosch Hospital
    's-Hertogenbosch, Netherlands
  • Antoni van Leeuwenhoek
    Amsterdam, Netherlands
  • Maastricht University Medical centre
    Maastricht, Netherlands
  • Radboud university medical centre
    Nijmegen, Netherlands
  • Erasmus University Medical Centre
    Rotterdam, Netherlands
08

References and documents

Publications

  • de Rouw N, de Boer M, Boosman RJ, van den Heuvel MM, Burger DM, Lieverse JE, Derijks HJ, Frederix GWJ, Ter Heine R. The Pharmacoeconomic Benefits of Pemetrexed Dose Individualization in Patients With Lung Cancer. Clin Pharmacol Ther. 2022 May;111(5):1103-1110. doi: 10.1002/cpt.2529. Epub 2022 Feb 21. PubMed 35048355 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 13, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03655821
Lead sponsor
Radboud University Medical Center
Collaborators
ZonMw: The Netherlands Organisation for Health Research and Development
Responsible party
Sponsor
First posted
Aug 31, 2018
Start date
Feb 1, 2019
Primary completion
May 11, 2021
Completion
May 11, 2021
Last update
May 13, 2022

Study contacts

Rob ter Heine, PhD
principal investigator · Radboud University Medical Center

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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