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Severe Aplastic AnemiaPhase 2/3NCT03295058

Peripheral Blood Allogenic Stem Cell Transplantation Using Non-anti Thymocyte Globulin Regimens in Severe Aplastic Anemia Patients

A Phase 2/3 study testing Non ATG Conditioning regimen, GVHD Prophylaxis and Allogenic Stem Cell Transplantation in people with Severe Aplastic Anemia, run by Assiut University.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Aplastic anemia is a syndrome of bone marrow failure characterized by peripheral pancytopenia and marrow hypoplasia.The theoretical basis for marrow failure includes primary defects in or damage to the stem cell or the marrow microenvironment Read more about this study

Who is it for?
Ages 16 to 50 years
Conditions the study is for
Severe Aplastic Anemia
What is being tested?
Non ATG Conditioning regimen, GVHD Prophylaxis and Allogenic Stem Cell Transplantation
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
No sites listed yet
Study dates
1 Jan 2019to Jun 2020
Phase
Phase 2/3
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 16 to 50 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • All patients with severe and very severe aplastic anemia for stem cell therapy.

Who cannot join

  • 1- Contraindication to stem cell transplantation. 2 - Patients associated co-morbidities.

Trial locations and contacts

No sites are listed yet.

Osama A Ibraheim, MD contact

00201006372498

oibrahiem@yahoo.com

Rania M Hafez, MD contact

00201000019198

raniahafez@ymail.com

About this study

Official title: Outcome of Peripheral Blood Allogenic Stem Cell Transplantation Using Non-anti Thymocyte Globulin (ATG ) Conditioning Regimens in Severe Aplastic Anemia Patients

Aplastic anemia is a syndrome of bone marrow failure characterized by peripheral pancytopenia and marrow hypoplasia.The theoretical basis for marrow failure includes primary defects in or damage to the stem cell or the marrow microenvironment

Read the detailed description

The distinction between acquired and inherited disease may present a clinical challenge, but more than 80% of cases are acquired.

Therapy for aplastic anemia may consist of supportive care only, immunosuppressive therapy, or hematopoietic cell transplantation. Severe and very severe aplastic anemia have a high mortality rate with supportive care alone .

The British Committee for Standards in Haematology recommends treating infection or uncontrolled bleeding before administering immunosuppressive therapy, including in patients scheduled for hematopoietic cell transplantation. The Pediatric Haemato-Oncology Italian Association recommends hematopoietic cell transplantation from a matched sibling donor for severe aplastic anemia, and if a matched donor is not available, options include immunosuppressive therapy or unrelated donor hematopoietic cell transplantation.

Human leukocyte antigen (HLA)-matched sibling-donor hematopoietic cell transplantation is the treatment of choice for a young patient with severe or very severe aplastic anemia , being generally accepted for patients younger than 40 years.

Recent years have seen increasing the use of hematopoietic cells other than bone marrow (BM). These alternative graft sources include peripheral blood progenitor cells and granulocyte colony stimulating factor (G-CSF) bone marrow (G-BM). Several groups have demonstrated that peripheral blood progenitor cell transplantation has faster neutrophil and platelet engraftment compared to BM in patients with hematologic malignancies ; however, most adult studies also report an increase in chronic GVHD (cGVHD) Some adult studies describe improved survival with peripheral blood progenitor cells in adult recipients although survival generally was no different in those with standard-risk disease .

Cyclophosphamide (Cy)/anti-thymocyte globulin (ATG) is considered the standard conditioning regimen for patients with severe aplastic anemia undergoing hematopoietic cell transplantation from a HLA matched sibling donor, The introduction of a fludarabine (F-araA) based reduced intensity conditioning regimen has extended the availability of hematopoietic cell transplantation to patients who are older, heavily transfused and having delayed treatment from the time of diagnosis with HLA matched related/unrelated donors.

The addition of F-araA to the conditioning regimen has been shown to provide additional immunosuppression for engraftment without increasing toxicity in patients undergoing hematopoietic cell transplantation .

Also, conditioning with F-araA and Cy is associated with improved long-term survival compared to a historical cohort receiving Cy/ATG regimen in patients with severe aplastic anemia undergoing hematopoietic cell transplantation .

Adequate post transplantation immunosuppression is important not only for the prevention of GVHD, but also to secure adequate suppression of the host immune system and prevention of graft rejection. The administration of CsA alone or with or without short-course methotrexate or steroid should be considered the standard post transplantation immunosuppression. In addition to possibility of use of other immunosuppressive agents, including the use of mycophenolate mofetil, particularly in patients with renal impairment.

Being tested
Non ATG Conditioning regimen, GVHD Prophylaxis, Allogenic Stem Cell Transplantation, ATG conditioning regimen
Medical subject headings
Anemia, Aplastic

What participants receive

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

  • Non ATG Conditioning regimenDrug

    50% of the patients will receive Fludarabine + cyclophosphamide (F-araA 120 mg/m2 total dose for 3 days (d-3,-2,-1) over 1 h infusion and cyclophosphamide 25 mg/kg/d (d-5 to d-2) for 4 days over 1-h infusion prior to hematopoietic cell transplantation , then post transplant cyclophosphamide dose 50 mg/kg on days +3 and +4

  • GVHD ProphylaxisDrug

    Cyclosporine A (CsA 3 mg/kg) start day +5

  • Allogenic Stem Cell TransplantationProcedure or surgery

    using peripheral blood stem cells

  • ATG conditioning regimenDrug

    the other 50% of the patients will receive Cyclophosphamide + ATG

Study groups in NCT03295058
Study groupRoleWhat they receive
Non ATG regimenExperimentalthe first 50% of patients will receive Fludarabine + cyclophosphamide prior to hematopoietic cell transplantation. GVHD Prophylaxis: Cyclosporine A All the patient will do allogenic stem cell transplantation from peripheral blood
Receives: Drug: Non ATG Conditioning regimen; Drug: GVHD Prophylaxis; Procedure: Allogenic Stem Cell Transplantation
ATG regimenExperimentalthe other 50% will receive Cyclophosphamide + ATG prior to hematopoietic cell transplantation. GVHD Prophylaxis: Cyclosporine A All the patient will do allogenic stem cell transplantation from peripheral blood
Receives: Drug: GVHD Prophylaxis; Procedure: Allogenic Stem Cell Transplantation; Drug: ATG conditioning regimen

What is being measured

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

  1. Overall Survival rate

    Measured: two years

Secondary outcomes (3)
  1. GVHD occurrence (Acute or Chronic), engraftment and transplant related mortality

    Measured: two years

  2. Relapse rate

    Measured: two years

  3. Progression free survival

    Measured: two years

Timeline

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

  1. First posted27 Sep 2017
  2. Study start1 Jan 2019 (estimated)
  3. Primary completion1 Dec 2019 (estimated)
  4. Study completionJun 2020 (estimated)

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 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Single group
Model description
severe aplastic anemia patients will receive two different conditioning regimens before doing allogenic stem cell transplantation
Masking
None (open label)
Enrolment
50 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03295058
Sponsor's protocol ID
OPALLSCT
Status last verified
Nov 2018
First submitted
24 Sep 2017
Last updated
27 Nov 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Killick SB, Bown N, Cavenagh J, Dokal I, Foukaneli T, Hill A, Hillmen P, Ireland R, Kulasekararaj A, Mufti G, Snowden JA, Samarasinghe S, Wood A, Marsh JC; British Society for Standards in Haematology. Guidelines for the diagnosis and management of adult aplastic anaemia. Br J Haematol. 2016 Jan;172(2):187-207. doi: 10.1111/bjh.13853. Epub 2015 Nov 16. No abstract available.

    PubMed 26568159
  • George B, Mathews V, Viswabandya A, Abraham A, Ganapule A, Fouzia NA, Korula A, Lakshmi KN, Chandy M, Srivastava A. Immunosuppressive Therapy and Bone Marrow Transplantation for Aplastic Anaemia--The CMC Experience. J Assoc Physicians India. 2015 Mar;63(3 Suppl):36-40.

    PubMed 26529866
  • Barone A, Lucarelli A, Onofrillo D, Verzegnassi F, Bonanomi S, Cesaro S, Fioredda F, Iori AP, Ladogana S, Locasciulli A, Longoni D, Lanciotti M, Macaluso A, Mandaglio R, Marra N, Martire B, Maruzzi M, Menna G, Notarangelo LD, Palazzi G, Pillon M, Ramenghi U, Russo G, Svahn J, Timeus F, Tucci F, Cugno C, Zecca M, Farruggia P, Dufour C, Saracco P; Marrow Failure Study Group of the Pediatric Haemato-Oncology Italian Association. Diagnosis and management of acquired aplastic anemia in childhood. Guidelines from the Marrow Failure Study Group of the Pediatric Haemato-Oncology Italian Association (AIEOP). Blood Cells Mol Dis. 2015 Jun;55(1):40-7. doi: 10.1016/j.bcmd.2015.03.007. Epub 2015 Mar 31.

    PubMed 25976466
  • Socie G. Allogeneic BM transplantation for the treatment of aplastic anemia: current results and expanding donor possibilities. Hematology Am Soc Hematol Educ Program. 2013;2013:82-6. doi: 10.1182/asheducation-2013.1.82.

    PubMed 24319167
  • Wu Y, Yu J, Zhang L, Luo Q, Xiao JW, Liu XM, Xian Y, Dai BT, Xu YH, Su YC. [Hematopoiesis support of mesenchymal stem cells in children with aplastic anemia]. Zhongguo Dang Dai Er Ke Za Zhi. 2008 Aug;10(4):455-9. Chinese.

    PubMed 18706160
  • Couban S, Simpson DR, Barnett MJ, Bredeson C, Hubesch L, Howson-Jan K, Shore TB, Walker IR, Browett P, Messner HA, Panzarella T, Lipton JH; Canadian Bone Marrow Transplant Group. A randomized multicenter comparison of bone marrow and peripheral blood in recipients of matched sibling allogeneic transplants for myeloid malignancies. Blood. 2002 Sep 1;100(5):1525-31. doi: 10.1182/blood-2002-01-0048.

    PubMed 12176866
  • Watanabe T, Takaue Y, Kawano Y, Koike K, Kikuta A, Imaizumi M, Watanabe A, Eguchi H, Ohta S, Horikoshi Y, Iwai A, Makimoto A, Kuroda Y; Peripheral Blood Stem Cell Transplantation Study Group of Japan. HLA-identical sibling peripheral blood stem cell transplantation in children and adolescents. Biol Blood Marrow Transplant. 2002;8(1):26-31. doi: 10.1053/bbmt.2002.v8.pm11846353.

    PubMed 11846353

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Non ATG Conditioning regimen, GVHD Prophylaxis and Allogenic Stem Cell Transplantation in people with Severe Aplastic Anemia, run by Assiut University.

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 1 inclusion and 1 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: status not confirmed, as of the sponsor's last update on 27 Nov 2018. Status can change between updates, so confirm with the study contact before making plans.

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 combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Osama A Ibraheim, MD (00201006372498, oibrahiem@yahoo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Overall Survival rate (time frame: two years). 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 NCT03295058, which also lists 7 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 27 Nov 2018.

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