E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Indolent or smoldering mastocytosis |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To study in a pilot phase II trial the efficacy of midostaurin administered at an oral dose of 100 mg twice daily in patients with indolent or smoldering systemic mastocytosis on mediator symptom reduction, documented by the Mastocytosis Symptom Assessment Questionnaire, measured at 3 months. |
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E.2.2 | Secondary objectives of the trial |
1) To study whether symptom improvement persists at 6 months, and whether midostaurin can reduce mast cell infiltration in the skin and bone marrow, documented by decrease of serum tryptase, decrease of urticaria pigmentosa and decrease of bone marrow mast cells. 2) To assess safety and tolerability of midostaurin in the above mentioned settings
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Patients with ISM or SSM according to the WHO criteria Presence of the D816V c-KIT mutation Serum tryptase ≥20 μg/l Serious mediator-related symptoms that cannot be controlled by H1 and H2 blocking drugs. Symptoms will be scored by an adapted MSAF (mastocytosis symptom assessment form15) with at least o a pre-study score of 4 or more on 3 non-related items, o or a pre-study score of 5 or more on 2 non-related items. o one item from the scoring list can be replaced by flushes 7 or more per week or anaphylactic attacks 1 or more per week Age >18 years Willingness to apply optimal contraceptive measures (double barrier method, both men and women) if applicable, e.g. women below the age of 55, men at all ages; for both: if sexually active. Written informed consent
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E.4 | Principal exclusion criteria |
- Aggressive systemic mastocytosis, mast cell leukemia, or ASM with or without accompanying non-clonal related non-mast cell disorder (SM-ANHMD). Any known other present malignancy, non-melanoma skin cancers excluded History of malignancy within the last 5 years, non-melanoma skin cancers excluded Any serious comorbidity interfering with therapy compliance and follow-up compliance Pregnancy Patients not willing or who are not able to comply with contraceptive measures
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E.5 End points |
E.5.1 | Primary end point(s) |
Percent change in the Sumscore of all symptoms assessed by the Mastocytosis Symptom Assessment Form (MSAF) after 12 weeks. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
persistence of improvement symptom score at 6 months. Percent change in the mast cell burden (bone marrow infiltrate, skin infiltrate, serum tryptase levels) after 6 months. Number and grading of CTC (see below, version 4) adverse events during the 6 months of therapy. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |