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Post-transplantation Cyclophosphamide in Haploidentical Stem Cell Allografts Dose Reduction: 50 mg/kg vs 25 mg/kg

C

Centro de Hematología y Medicina Interna

Status

Invitation-only

Conditions

Graft Vs Host Disease

Treatments

Drug: Cyclophosphamide

Study type

Interventional

Funder types

Other

Identifiers

NCT05780554
CHMI-020323-1

Details and patient eligibility

About

Allogeneic hematopoietic cell transplantation (HSCT) is a worldwide recognized therapy for several hematologic malignancies; a modality extensively used around the world due to its effectivity; however, an HLA-matched sibling or unrelated donor is not always available, because of diverse factors such as: ethnic minorities and multiethnic families, socio-economic status, among others. This problem has led to an expansion of the donor pool to include alternative donor sources such as HLA-haploidentical (Haplo) relatives, HLA-mismatched unrelated donors, and HLA-matched or mismatched cord blood.

In the Hematology and Internal Medicine Center of Clinica Ruiz, we have seen that 50% reduced doses of post-transplantation cyclophosphamide (25 mg/Kg) on days +3 and +4 have a favorable effect on patient's survival rates compared to the full 50 mg/Kg doses. Haplo-HSCT can be conducted safely on an outpatient basis, using peripheral blood stem cells, this leading into substantial decreases in the costs. Outpatient-based Haplo-HSCT has turned into the solution of the HSCT most frequent problems in low- and middle-income countries (LMIC): Cost and donor availability. The high dose administration of PT-Cy after transplant can lead into hematological and cardiac, toxicities. There is preliminary information about diminished doses of PTCy, might being equally effective in the prevention of GVHD and substantially less toxic.

Enrollment

42 estimated patients

Sex

All

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Candidates to receive a Haplo-HSCT (myeloid acute leukemia, lymphoid acute leukemia, myelodysplastic syndrome, multiple myeloma, Hodgkin lymphoma, non-Hodgkin lymphoma, myeloid chronic leukemia, medullary hypoplasia, non-malignant hematologic diseases).
  • Patients able to travel to and remain in Puebla, México during a 4-week period, accompanied by a caregiver.

Exclusion criteria

  • Patients who refuse to sign the consent form.
  • Latent infection.
  • Hepatic, cardiac or bronchopulmonary symptomatic diseases
  • Abnormalities on previous clinical hematological appointments, considered as contraindication.
  • Positive serology for HIV, VHB, VHC

Trial design

Primary purpose

Prevention

Allocation

Non-Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

42 participants in 2 patient groups

Cyclophosphamide 50 mg/kg
Active Comparator group
Treatment:
Drug: Cyclophosphamide
Drug: Cyclophosphamide
Cyclophosphamide 25 mg/kg
Experimental group
Treatment:
Drug: Cyclophosphamide
Drug: Cyclophosphamide

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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