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CompletedNCT03434704SIR-POSAUpdated Jul 19, 2022

Peripheral Blood Stem Cell Transplantation From Family Haploidentical Donors in Patients With Myelodysplastic Syndrome and Acute Leukemia Under Primary Prophylaxis With Posaconazole

A Phase 2 interventional study of Conditioning treatment "Thiotepa-Treosulfan-Fludarabine" and PBSC graft in Transplant-Related Hematologic Malignancy, Leukemia, Acute and Myelodysplastic Syndromes, sponsored by Ciceri Fabio. Completed at 1 site in Italy. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-07-19.

Sponsored by Ciceri Fabio · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
10
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

SIR-POSA is a phase II trial of peripheral blood stem cell (PBSC) transplantation from a partially compatible family (Haplo) donor in patients with a blood tumor (myelodysplastic syndrome (MDS) and acute leukemia) treated for the prevention of primary fungal infections with posaconazole.

The aim is evaluate the composite end-point graft-versus-host disease-free, relapse-free survival (GRFS) in these patients and evaluate the feasibility and efficacy of posaconazole oral tablets as primary antifungal prophylaxis.

02

Conditions studied

  • Transplant-Related Hematologic Malignancy
  • Leukemia, Acute
  • Myelodysplastic Syndromes
  • Graft Vs Host Disease
  • Fungal Infection
03

In context

Leukemia

2,381 studies on the registry are indexed under Leukemia; 253 are open to participants now.

This study's enrollment of 10 is below the median of 40 across 1,769 interventional studies indexed under Leukemia.

Browse Leukemia studies →

Lead sponsor

Ciceri Fabio is the lead sponsor of 8 studies on the registry; 6 are open to participants now.

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

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Diagnosis of myelodysplastic syndromes or acute leukemia
  • Activation of an alternative donor search by the Italian Bone Marrow Donor Registry (IBMDR) with absence of a 10/10 Human Leukocyte Antigens (HLA) matched unrelated donor
  • Age >18
  • Unavailability of a HLA-matched related donor (MRD)
  • Performance status : (ECOG) \<3
  • Written and signed
  • not severely limited by concomitant illness.

Exclusion criteria

Exclusion Criteria:

  • Women of who do not agree to abstinence or, if sexually active, do not agree to the use of highly effective method of such as condoms, implants, injectables, combined oral contraceptives, intrauterine devices (IUDs), vasectomised partner on treatment and for at least 6 months thereafter.
  • Pregnant or nursing (lactating) women.
  • Known allergies, , or intolerance to any experimental drugs.
  • Any active, uncontrolled infection.
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
10 participants (actual)

Study arms

  • Experimental
    Single Arm Treatment

    Conditioning treatment "Thiotepa-Treosulfan-Fludarabine"; PBSC graft; GvHD prophylaxis; Primary antifungal prophylaxis.

    Drug: Conditioning treatment "Thiotepa-Treosulfan-Fludarabine" · Procedure: PBSC graft · Drug: GvHD prophylaxis · Drug: Primary antifungal prophylaxis

Interventions

  • DrugConditioning treatment "Thiotepa-Treosulfan-Fludarabine"

    Thiotepa iv 5 mg/kg/bid (total dose TD 10 mg/kg) day -3,-2; Treosulfan iv 14g/mq/day (TD 42 g/mq) as a single daily dose day -6, -5, -4; Fludarabine iv 30 mg/m2 (TD 150 mg/m2) day -6, -5, -4, -3, -2. Thiotepa TD 5 mg/kg and treosulfan TD 36 g/mq dose reduction according to age \> 65 years.

    Also known as: TTF

  • ProcedurePBSC graft

    (target 4-8 × 106 CD34+ cells/kg patient body weight)

  • DrugGvHD prophylaxis

    Sirolimus orally, monitored two times a week to maintain a target therapeutic plasma level of 8-15 ng/ml from day +5. Mycophenolate 15 mg/kg bid i.v. or per os day +5 through +28. Cyclophosphamide 50 mg/kg i.v. day +3+4. Mesna: \>80% of the cyclophosphamide dose in 3 divided doses from day +3 daily through day +5.

  • DrugPrimary antifungal prophylaxis

    Posaconazole delayed-release tablet \[available in 100 mg tablets\]: 300 mg twice daily on the first day followed by a maintenance dose of 300 mg once a day, starting on the day 0 to day 85.

06

What researchers measure

Primary outcomes

  1. Graft-versus-host disease-free, relapse-free survival (GRFS)

    GRFS events is defined as the first event among grade III-IV acute Graft vs. Host Disease (GVHD), severe chronic GVHD, relapse and death from any cause

    Time frame: 2 years

Secondary outcomes

  1. Efficacy of antifungal prophylaxis strategy

    The rate of proven, probable and possible invasive fungal diseases documented within the first 85 days after transplantation

    Time frame: 85 days after transplantation

07

Study locations

1 site
  • Ospedale San Raffaele
    Milano, Lombardia 20132, Italy
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 19, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03434704
Lead sponsor
Ciceri Fabio
Responsible party
Ciceri Fabio (MD, IRCCS San Raffaele) — Sponsor-investigator
First posted
Feb 15, 2018
Start date
Jun 18, 2018
Primary completion
Oct 13, 2019
Completion
Oct 13, 2019
Last update
Jul 19, 2022

Oversight

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

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This study is completed, as verified in Jul 2022. You cannot join it, but the record below documents what was studied.

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