Photochemotherapy and Graft-versus-leukemia in Acute-leukemia

December 11, 2015 updated by: Nicolas Feldreich, Karolinska University Hospital

Photochemotherapy of Acute Graft-versus-host Disease (aGVHD) of the Skin - is Graft-versus-leukemia Preserved in Patients Transplanted for Acute Leukemia?

Cure of leukemia after hematopoietic stem cell transplantation (HSCT) is sustained by the anti-leukemic effect of the grafted cells (graft-versus-leukemia (GVL)). However, it is not known whether the tumor-immunity is affected by photochemotherapy (psoralene photosensitization and ultraviolet light radiation) administered to attenuate graft-versus host disease (GVHD).

The present study aim to investigate what happens to the GVL after photochemotherapy of aGVHD in a predominantly retrospective setting with 10-years follow-up after HSCT

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This is a 10-year follow-up of patients with Acute-myeloid-leukemia (AML) or acute-lymphatic-leukemia (ALL). AML is diagnosed by the French-American-British criteria (FAB-criteria) and ALL is separated into chief forms by immunohistological methods. All patients underwent myeloablative Hematopoietic Stem Cell Transplantation (HSCT) between 1985 and 2005 at the center for allogeneic stem cell transplantation (CAST) at Karolinska University Hospital. All patient receive GVHD-prophylaxis.

The risk for relapse after HSCT is graded into low-risk if the disease is in first complete remission before HSCT, all other disease states are classified as high-risk.

Eligible patients received photochemotherapy (Ultraviolet radiation type A on skin photosensitized by oral 8-methoxypsoralen) for acute graft-versus-host disease (GVHD within 100-days after HSCT). Photochemotherapy may be given as primary or later aGVHD therapy. Patients with aGVHD after booster doses of stem-cells or donor-lymphocyte-infusions are not included.

Additional treatment are registered where present. Methotrexate is not considered as an additional GVHD treatment as intravenous methotrexate a part of the governing GVHD prophylaxis and as the effects of methotrexate as a secondary aGVHD treatment is weak.

At the start, the end, at maximum and up until two weeks after end of PUVA-therapy the GVHD is diagnosed in accordance with Glucksberg and indexed by CIBMTR.

Relapse is diagnosed when leukemic cells is present extra medullary or with a bone marrow biopsy with ≥ 30% blasts. Early relapse is diagnosed when the medulla contain 5 - 30% blasts

The primary outcome is GVL i.e. abscence of relapse in malignant disease or minimal residual disease (MRD) i.e. threatening relapse in malignant disease demanding donor lymphocyte infusion (DLI).

Primary predictor: Time-to-treatment by photochemotherapy at day 0 - 7 vs. start at day 8 ≤ of aGVHD.

Continuous secondary predictor: Time-to-treatment by photochemotherapy as a continuous variable (days after start of aGVHD).

Binary secondary predictors: Risk (Low/High), Sibling donor-recipient (Yes/No), Mismatched related (Yes/No), Unrelated donor (Yes/No), (Male recipients of female grafts (Yes/No), T-cell depletion or Anti-Thymocyte Globulin (Yes/No).

Categorical secondary predictors: AGVHD organ disease stage and disease grade; Skin (+, ++, +++, ++++), Liver (+, ++, +++, ++++), Gastro-intestinal (+, ++, +++, ++++), Center for International Blood and Marrow Transplant Research CIBMTR index (A, B, C, D) respectively.

Statistical analysis:

Cox proportional Hazards ratio is used to conduct a univariate data analysis of all adequate variables in patient characteristics and disease towards the primary outcome. In the analysis, death, DLI or retransplantation due to graft-failure was treated as a competing event. The primary predictor (binary) and all binary or categorical covariates identified from the patient and disease characteristics are to be included in a multivariate forward regression analysis, controlled for with backward regression based on the log-likelihood method. P=0.05 is considered as significant and p=0.10 as a trend. StatSoft, Inc. (2013). STATISTICA (data analysis software system), version 12. www.statsoft.com. are used for statistical computation.

Study Type

Observational

Enrollment (Actual)

47

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Sweden
      • Stockholm, Sweden, 14186
        • Department of Dermatology, Karolinska University Hospital Huddinge

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients with AML or ALL having received photochemotherapy for aGVHD evoked by HSCT given at Center for Allogeneic Stem Cell transplantation (CAST) between 1985 - end of 2004.

Description

Inclusion Criteria:

  • Eligible patients received photochemotherapy (Ultraviolet radiation type A on skin photosensitized by oral 8-methoxypsoralen) for acute graft-versus-host disease (GVHD within 100-days after HSCT). Photochemotherapy may be given as primary or later aGVHD therapy.

Exclusion Criteria:

  • Patients with aGVHD after booster doses of stem-cells or donor-lymphocyte-infusions are not included.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Retrospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Graft-versus-leukemia (GVL)
Time Frame: 10-years after HSCT (2005 - 2015)
i.e. abscence of relapse in malignant disease or minimal residual disease (MRD) i.e. threatening relapse in malignant disease demanding donor lymphocyte infusion (DLI).
10-years after HSCT (2005 - 2015)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Death
Time Frame: 10-years after HSCT (2005 - 2015)
Competing event
10-years after HSCT (2005 - 2015)
Retransplantation
Time Frame: 10-years after HSCT (2005 - 2015)
Competing event
10-years after HSCT (2005 - 2015)
Donor Lymphocyte Infusion (DLI)
Time Frame: 10-years after HSCT (2005 - 2015)
Competing event
10-years after HSCT (2005 - 2015)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Karolinska University Hospital

Investigators

  • Principal Investigator: Nicolas Feldreich, M.D., Division of Therapeutic Immunology, Department of Laboratory Medicine, Karolinska Institute
  • Study Director: Olle Ringden, Professor, Division of Therapeutic Immunology, Department of Laboratory Medicine, Karolinska Institute
  • Study Chair: Brigitta Omazic, PhD, Department of Oncology and Pathology,

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2014

Primary Completion (Actual)

November 1, 2014

Study Completion (Actual)

December 1, 2014

Study Registration Dates

First Submitted

September 8, 2015

First Submitted That Met QC Criteria

December 11, 2015

First Posted (Estimate)

December 16, 2015

Study Record Updates

Last Update Posted (Estimate)

December 16, 2015

Last Update Submitted That Met QC Criteria

December 11, 2015

Last Verified

December 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • TIM Photochem 2

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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