Chronic Lymphocytic LeukemiaPhase 1/2NCT00281983
Fludarabine and Cyclophosphamide in Treating Patients Who Are Undergoing Donor Stem Cell Transplant for Chronic Lymphocytic Leukemia or Waldenstrom's Macroglobulinemia
A Phase 1/2 study testing alemtuzumab, anti-thymocyte globulin and filgrastim in people with Chronic Lymphocytic Leukemia, run by German CLL Study Group at 13 sites in 2 countries.
Trial summary
RATIONALE: Giving chemotherapy before a donor bone marrow transplant helps stop the growth of cancer cells. It also helps stop the patient's immune system from rejecting the donor's stem cells. Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Chronic Lymphocytic Leukemia
- What is being tested?
- alemtuzumab, anti-thymocyte globulin and filgrastim
- Type of treatment
- Injection or infusion, Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 100 participants
- Where
- 13 sitesin 2 countries
- Study dates
- Jun 2000to Jul 2010
- Phase
- Phase 1/2
- 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 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
DISEASE CHARACTERISTICS:
- Diagnosis of B-cell chronic lymphocytic leukemia or lymphoplasmocytic lymphoma (Waldenstrom's macroglobulinemia)
- Must have poor prognostic features and low probability of successful autografting, defined by one of the following criteria:
- Progressive disease with unfavorable cytogenetics (deletion or mutation of critical regions on chromosomes 11q and/or 17p [p53]; and/or unmutated status of the immunoglobulin V_H gene region; and/or usage of the V_H 3-21 gene), defined as 1 of the following:
- Doubling of lymphocyte count or nodal involvement within 3 months or less
- Progressive decline of platelet count and/or hemoglobin values defining Binet stage C disease (or to 50% or less of baseline values within 3 months) not due to immune mechanisms
- Symptomatic splenomegaly
- Discomfort or imminent complications due to large tumor masses
- B symptoms
- Refractory disease or early relapse (within 12 months) after treatment with a fludarabine-containing regimen
- Relapsed after autologous stem cell transplant (SCT)
- Insufficient stem cell harvest for intended autologous SCT
- Presence of a clonal CDR III rearrangement detected by polymerase chain reaction
- No Richter's syndrome
- HLA-identical sibling or unrelated donor available
PATIENT CHARACTERISTICS:
- ECOG performance status ≤ 1
- Creatinine clearance > 60 mL/min
- SGOT, SGPT, and bilirubin < 2 times normal
- Normal cardiac function determined by ECG and echocardiographic examination
- Inspiratory vital capacity, FEV_1, and DLCO > 50% of predicted
- No serious localized or systemic infections
- No other concurrent malignant disease
- No impaired organ function
- No uncontrolled diabetes
- No uncontrolled hypertension
- Not pregnant or nursing
- Fertile patients must use effective contraception
- No HIV infection
- No hepatitis B or C infection
- No concurrent alcohol or drug abuse
- No dementia or altered mental status that would preclude giving informed consent
PRIOR CONCURRENT THERAPY:
- Not specified
Trial locations and contacts
13 sites in 2 countries.
13 sites in 2 countries
Germany12 sites
Charite - Universitaetsmedizin Berlin - Campus Benjamin Franklin
Berlin, 12200
Universitaetsklinikum Essen
Essen, 45122
Universitaetsklinikum Goettingen
Göttingen, 37075
Asklepios Klinik St. Georg
Hamburg, D-20099
Medizinische Hochschule Hannover
Hanover, 30625
Universitaets-Kinderklinik Heidelberg
Heidelberg, D-69120
Universitaetsklinikum des Saarlandes
Homburg, 66421
Clinic for Bone Marrow Transplantation and Hematology and Oncology
Idar-Oberstein, D-55743
University Hospital Schleswig-Holstein - Kiel Campus
Kiel, 24116
University Hospital of Leipzig
Leipzig, 04103
Klinikum der Universitaet Regensburg
Regensburg, 93053
Comprehensive Cancer Center Ulm at Universitaetsklinikum Ulm
Ulm, 89081
About this study
Official title: Pilot Study on Allogeneic Stem Cell Transplantation Following Conditioning With Fludarabine and an Alkylating Agent in Patients With High-Risk Chronic Lymphocytic Leukemia
RATIONALE: Giving chemotherapy before a donor bone marrow transplant helps stop the growth of cancer cells. It also helps stop the patient's immune system from rejecting the donor's stem cells. Also, monoclonal antibodies, such as alemtuzumab, can find cancer cells and either kill them or deliver cancer-killing substances to them without harming normal cells. When the healthy stem cells from a donor are infused into the patient they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells. Giving methotrexate, cyclosporine and mycophenolate mofetil after the transplant may stop this from happening. Once the donated stem cells begin working, the patient's immune system may see the remaining cancer cells as not belonging in the patient's body and destroy them (called graft-versus-tumor effect). Giving an infusion of the donor's white blood cells (donor lymphocyte infusion) may boost this effect.
PURPOSE: This phase I/II trial is studying the side effects of giving fludarabine together with cyclophosphamide and to see how well they work in treating patients who are undergoing donor stem cell transplant for B-cell chronic lymphocytic leukemia or Waldenström's macroglobulinemia.
Read the detailed description
OBJECTIVES:
Primary
- Determine the feasibility and safety of induction therapy comprising fludarabine and cyclophosphamide followed by allogeneic stem cell transplantation in patients with high-risk B-cell chronic lymphocytic leukemia or lymphoplasmocytic lymphoma (Waldenstrom's macroglobulinemia).
Secondary
- Determine the incidence and kinetics of clinical and molecular remissions in patients treated with this regimen.
- Determine event-free and overall survival of patients treated with this regimen.
- Determine the duration of clinical and molecular remission in relation to the underlying cytogenetic deviation in patients treated with this regimen.
- Determine the kinetics and extent of lympho-hematopoietic donor chimerism in patients treated with this regimen.
OUTLINE: This is a multicenter, open-label, nonrandomized, pilot study.
- Cytoreductive therapy: Patients receive up to 3 courses of cytoreductive therapy comprising fludarabine IV and cyclophosphamide IV on days 1-3 (with or without rituximab IV on day 1). Patients refractory to fludarabine-containing therapy may receive alemtuzumab IV for 12 weeks OR any other cytotoxic salvage regimen for cytoreduction.
- Conditioning regimen: Patients receive 1 of the following conditioning regimens*:
NOTE: *Patients who did not achieve partial response after cytoreductive therapy receive regimen 3.
- Regimen 1: Patients receive fludarabine IV and cyclophosphamide IV on days -7 to -3. If stem cells are collected from an unrelated donor, patients also receive anti-thymocyte globulin (ATG) IV on days -4 to -1.
- Regimen 2: Patients undergo total-body irradiation on day -9. Patients then receive alemtuzumab IV on days -8 to -4 and fludarabine IV and cyclophosphamide IV on days -6 to -2.
- Regimen 3: Patients receive fludarabine IV on days -7 to -3, busulfan IV or orally on days -7 to -5, and cyclophosphamide IV on days -3 to -2. If stem cells are collected from an unrelated donor, patients also receive ATG on days -3 to -1.
- Allogeneic peripheral blood stem cell transplantation (PBSCT): Patients undergo allogeneic PBSCT on day 0. Patients receive filgrastim (G-CSF) subcutaneously daily starting on day 5 and continuing until blood count recover.
- Graft-versus-host-disease (GVHD) prophylaxis: Patients receive cyclosporine IV beginning on day -1 and continuing until approximately day 100. Patients treated with conditioning regimen 1 or 3 also receive methotrexate IV on days 1, 3, and 6 OR oral mycophenolate mofetil twice daily on days 0-50. Patients with evidence of residual disease at least 4 weeks after completion of cyclosporine undergo donor lymphocyte infusion (DLI).
- DLI: The donor T-lymphocytes are collected from the PBSCT donor without prior G-CSF mobilization. Patients receive DLI every 8 weeks in the presence of residual disease and the absence of GVHD.
After completion of study treatment, patients are followed periodically.
PROJECTED ACCRUAL: A total of 70 patients will be accrued for this study.
- Conditions
- Chronic Lymphocytic Leukemia
- Being tested
- alemtuzumab, anti-thymocyte globulin, filgrastim, rituximab, therapeutic allogeneic lymphocytes
- Keywords
- B-cell chronic lymphocytic leukemia, refractory chronic lymphocytic leukemia, stage III chronic lymphocytic leukemia, stage IV chronic lymphocytic leukemia, Waldenström macroglobulinemia
- Medical subject headings
- Leukemia, Lymphocytic, Chronic, B-Cell, Waldenstrom Macroglobulinemia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
alemtuzumabBiological
anti-thymocyte globulinBiological
filgrastimBiological
rituximabBiological
therapeutic allogeneic lymphocytesBiological
busulfanDrug
cyclophosphamideDrug
cyclosporineDrug
methotrexateDrug
peripheral blood stem cell transplantationProcedure or surgery
radiation therapyRadiation
| Study group | Role | What they receive |
|---|---|---|
| Allogeneic stem cell transplantation | Experimental | 1. Cytoreductive therapy for inducing a state of partial remission:
FC or FC-R or alternative salvage regimens (e.g. Alemtuzumab)
2. Conditioning regimen:
FC +/- ATG (Arm A) or FC/Busulfan +/- ATG (Arm C: refractory patients only)
3. allogeneic-PBSCT (from HLA-identical donor)
4. GVHD prophylaxis: CSA + MTX or MMF
5. +/- DLI (Donor lymphocyte infusions) Receives: Biological: alemtuzumab; Biological: anti-thymocyte globulin; Biological: filgrastim; Biological: rituximab; Biological: therapeutic allogeneic lymphocytes; Drug: busulfan; Drug: cyclophosphamide; Drug: cyclosporine; Drug: fludarabine phosphate; Drug: methotrexate; Drug: mycophenolate mofetil; Procedure: peripheral blood stem cell transplantation; Radiation: radiation therapy |
What is being measured
The primary outcome is the main question the study is designed to answer.
Feasibility as measured by the proportion of eligible patients completing the transplant procedure successfully
Safety as measured by a treatment-related mortality of < 25% at 2 years following transplant
Secondary outcomes (4)
Clinical remission rate by NIH criteria at 12 months following transplant
Minimal residual disease negativity rate as measured by high-resolution flow or CDR PCR at 12 months following transplant
Chimerism as measured by STR-PCR at 12 months following transplant
Event-free and overall survival at 5 years following transplant
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Jan 2006 (estimated)
- Study startJun 2000
- Study completionJul 2010
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for Chronic Lymphocytic LeukemiaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 1/2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 100 participants (actual)
Sponsor and investigators
- Lead sponsor
- German CLL Study Group
- Sponsor type
- University, hospital or other
- Investigators
- Peter Dreger, Study chair, Universitaets-Kinderklinik Heidelberg
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00281983
- Sponsor's protocol ID
- CLL3X
- Other IDs
- EU-20554, MEDAC-FLUD.10/CLL
- Status last verified
- Apr 2007
- First submitted
- 24 Jan 2006
- Last updated
- 24 Jul 2017
- Results posted
- No
- Individual data sharing
- No
Publications
Dreger P, Dohner H, Ritgen M, Bottcher S, Busch R, Dietrich S, Bunjes D, Cohen S, Schubert J, Hegenbart U, Beelen D, Zeis M, Stadler M, Hasenkamp J, Uharek L, Scheid C, Humpe A, Zenz T, Winkler D, Hallek M, Kneba M, Schmitz N, Stilgenbauer S; German CLL Study Group. Allogeneic stem cell transplantation provides durable disease control in poor-risk chronic lymphocytic leukemia: long-term clinical and MRD results of the German CLL Study Group CLL3X trial. Blood. 2010 Oct 7;116(14):2438-47. doi: 10.1182/blood-2010-03-275420. Epub 2010 Jul 1.
PubMed 20595516Ritgen M, Bottcher S, Stilgenbauer S, Bunjes D, Schubert J, Cohen S, Humpe A, Hallek M, Kneba M, Schmitz N, Dohner H, Dreger P; German CLL Study Group. Quantitative MRD monitoring identifies distinct GVL response patterns after allogeneic stem cell transplantation for chronic lymphocytic leukemia: results from the GCLLSG CLL3X trial. Leukemia. 2008 Jul;22(7):1377-86. doi: 10.1038/leu.2008.96. Epub 2008 Apr 17.
PubMed 18418404Dreger P, Schnaiter A, Zenz T, Bottcher S, Rossi M, Paschka P, Buhler A, Dietrich S, Busch R, Ritgen M, Bunjes D, Zeis M, Stadler M, Uharek L, Scheid C, Hegenbart U, Hallek M, Kneba M, Schmitz N, Dohner H, Stilgenbauer S. TP53, SF3B1, and NOTCH1 mutations and outcome of allotransplantation for chronic lymphocytic leukemia: six-year follow-up of the GCLLSG CLL3X trial. Blood. 2013 Apr 18;121(16):3284-8. doi: 10.1182/blood-2012-11-469627. Epub 2013 Feb 22.
PubMed 23435461Scheffold A, Jebaraj BMC, Jaramillo S, Tausch E, Steinbrecher D, Hahn M, Bottcher S, Ritgen M, Bunjes D, Zeis M, Stadler M, Uharek L, Scheid C, Hegenbart U, Hallek M, Kneba M, Schmitz N, Dohner H, Dreger P, Stilgenbauer S. Impact of telomere length on the outcome of allogeneic stem cell transplantation for poor-risk chronic lymphocytic leukaemia: results from the GCLLSG CLL3X trial. Br J Haematol. 2017 Oct;179(2):342-346. doi: 10.1111/bjh.14219. Epub 2016 Jul 8. No abstract available.
PubMed 27391907Kramer I, Stilgenbauer S, Dietrich S, Bottcher S, Zeis M, Stadler M, Bittenbring J, Uharek L, Scheid C, Hegenbart U, Ho A, Hallek M, Kneba M, Schmitz N, Dohner H, Dreger P. Allogeneic hematopoietic cell transplantation for high-risk CLL: 10-year follow-up of the GCLLSG CLL3X trial. Blood. 2017 Sep 21;130(12):1477-1480. doi: 10.1182/blood-2017-04-775841. Epub 2017 Jul 17. No abstract available.
PubMed 28716861
Study at a glance
From the registry record, last updated by the sponsor on 24 Jul 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Pilot Study on Allogeneic Stem Cell Transplantation Following Conditioning With Fludarabine and an Alkylating Agent in Patients With High-Risk Chronic Lymphocytic Leukemia
- ClinicalTrials.gov ID
- NCT00281983
- Acronym / sponsor ID
- CLL3X
- Conditions
- Chronic Lymphocytic Leukemia
- Keywords
- B-cell chronic lymphocytic leukemia, refractory chronic lymphocytic leukemia, stage III chronic lymphocytic leukemia, stage IV chronic lymphocytic leukemia, Waldenström macroglobulinemia
- Phase
- Phase 1/2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 100 participants (actual)
- Lead sponsor
- German CLL Study GroupUniversity, hospital or other
- Study start
- Jun 2000
- Study completion
- Jul 2010 (actual)
- First posted
- 25 Jan 2006 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
RATIONALE: Giving chemotherapy before a donor bone marrow transplant helps stop the growth of cancer cells. It also helps stop the patient's immune system from rejecting the donor's stem cells. Also, monoclonal antibodies, such as alemtuzumab, can find cancer cells and either kill them or deliver cancer-killing substances to them without harming normal cells. When the healthy stem cells from a donor are infused into the patient they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. Sometimes the transplanted cells from a donor can make an immune response against the body's normal cells. Giving methotrexate, cyclosporine and mycophenolate mofetil after the transplant may stop this from happening. Once the donated stem cells begin working, the patient's immune system may see the remaining cancer cells as not belonging in the patient's body and destroy them (called graft-versus-tumor effect). Giving an infusion of the donor's white blood cells (donor lymphocyte infusion) may boost this effect.
PURPOSE: This phase I/II trial is studying the side effects of giving fludarabine together with cyclophosphamide and to see how well they work in treating patients who are undergoing donor stem cell transplant for B-cell chronic lymphocytic leukemia or Waldenström's macroglobulinemia.
Detailed description
OBJECTIVES:
Primary
- Determine the feasibility and safety of induction therapy comprising fludarabine and cyclophosphamide followed by allogeneic stem cell transplantation in patients with high-risk B-cell chronic lymphocytic leukemia or lymphoplasmocytic lymphoma (Waldenstrom's macroglobulinemia).
Secondary
- Determine the incidence and kinetics of clinical and molecular remissions in patients treated with this regimen.
- Determine event-free and overall survival of patients treated with this regimen.
- Determine the duration of clinical and molecular remission in relation to the underlying cytogenetic deviation in patients treated with this regimen.
- Determine the kinetics and extent of lympho-hematopoietic donor chimerism in patients treated with this regimen.
OUTLINE: This is a multicenter, open-label, nonrandomized, pilot study.
- Cytoreductive therapy: Patients receive up to 3 courses of cytoreductive therapy comprising fludarabine IV and cyclophosphamide IV on days 1-3 (with or without rituximab IV on day 1). Patients refractory to fludarabine-containing therapy may receive alemtuzumab IV for 12 weeks OR any other cytotoxic salvage regimen for cytoreduction.
- Conditioning regimen: Patients receive 1 of the following conditioning regimens*:
NOTE: *Patients who did not achieve partial response after cytoreductive therapy receive regimen 3.
- Regimen 1: Patients receive fludarabine IV and cyclophosphamide IV on days -7 to -3. If stem cells are collected from an unrelated donor, patients also receive anti-thymocyte globulin (ATG) IV on days -4 to -1.
- Regimen 2: Patients undergo total-body irradiation on day -9. Patients then receive alemtuzumab IV on days -8 to -4 and fludarabine IV and cyclophosphamide IV on days -6 to -2.
- Regimen 3: Patients receive fludarabine IV on days -7 to -3, busulfan IV or orally on days -7 to -5, and cyclophosphamide IV on days -3 to -2. If stem cells are collected from an unrelated donor, patients also receive ATG on days -3 to -1.
- Allogeneic peripheral blood stem cell transplantation (PBSCT): Patients undergo allogeneic PBSCT on day 0. Patients receive filgrastim (G-CSF) subcutaneously daily starting on day 5 and continuing until blood count recover.
- Graft-versus-host-disease (GVHD) prophylaxis: Patients receive cyclosporine IV beginning on day -1 and continuing until approximately day 100. Patients treated with conditioning regimen 1 or 3 also receive methotrexate IV on days 1, 3, and 6 OR oral mycophenolate mofetil twice daily on days 0-50. Patients with evidence of residual disease at least 4 weeks after completion of cyclosporine undergo donor lymphocyte infusion (DLI).
- DLI: The donor T-lymphocytes are collected from the PBSCT donor without prior G-CSF mobilization. Patients receive DLI every 8 weeks in the presence of residual disease and the absence of GVHD.
After completion of study treatment, patients are followed periodically.
PROJECTED ACCRUAL: A total of 70 patients will be accrued for this study.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Allogeneic stem cell transplantation | Experimental | Biological: alemtuzumab, Biological: anti-thymocyte globulin, Biological: filgrastim, Biological: rituximab, Biological: therapeutic allogeneic lymphocytes, Drug: busulfan, Drug: cyclophosphamide, Drug: cyclosporine, Drug: fludarabine phosphate, Drug: methotrexate, Drug: mycophenolate mofetil, Procedure: peripheral blood stem cell transplantation, Radiation: radiation therapy1. Cytoreductive therapy for inducing a state of partial remission: FC or FC-R or alternative salvage regimens (e.g. Alemtuzumab) 2. Conditioning regimen: FC +/- ATG (Arm A) or FC/Busulfan +/- ATG (Arm C: refractory patients only) 3. allogeneic-PBSCT (from HLA-identical donor) 4. GVHD prophylaxis: CSA + MTX or MMF 5. +/- DLI (Donor lymphocyte infusions) |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| alemtuzumab | Biological | Allogeneic stem cell transplantation |
| anti-thymocyte globulin | Biological | Allogeneic stem cell transplantation |
| filgrastim | Biological | Allogeneic stem cell transplantation |
| rituximab | Biological | Allogeneic stem cell transplantation |
| therapeutic allogeneic lymphocytes | Biological | Allogeneic stem cell transplantation |
| busulfan | Drug | Allogeneic stem cell transplantation |
| cyclophosphamide | Drug | Allogeneic stem cell transplantation |
| cyclosporine | Drug | Allogeneic stem cell transplantation |
| fludarabine phosphate | Drug | Allogeneic stem cell transplantation |
| methotrexate | Drug | Allogeneic stem cell transplantation |
| mycophenolate mofetil | Drug | Allogeneic stem cell transplantation |
| peripheral blood stem cell transplantation | Procedure or surgery | Allogeneic stem cell transplantation |
| radiation therapy | Radiation | Allogeneic stem cell transplantation |
Primary outcome
Feasibility as measured by the proportion of eligible patients completing the transplant procedure successfully
Safety as measured by a treatment-related mortality of < 25% at 2 years following transplant
4 secondary outcomes
Clinical remission rate by NIH criteria at 12 months following transplant
Minimal residual disease negativity rate as measured by high-resolution flow or CDR PCR at 12 months following transplant
Chimerism as measured by STR-PCR at 12 months following transplant
Event-free and overall survival at 5 years following transplant
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Jul 2017.
- Results publication: PubMed 20595516Dreger P, Dohner H, Ritgen M, Bottcher S, Busch R, Dietrich S, Bunjes D, Cohen S, Schubert J, Hegenbart U, Beelen D, Zeis M, Stadler M, Hasenkamp J, Uharek L, Scheid C, Humpe A, Zenz T, Winkler D, Hallek M, Kneba M, Schmitz N, Stilgenbauer S; German CLL Study Group. Allogeneic stem cell transplantation provides durable disease control in poor-risk chronic lymphocytic leukemia: long-term clinical and MRD results of the German CLL Study Group CLL3X trial. Blood. 2010 Oct 7;116(14):2438-47. doi: 10.1182/blood-2010-03-275420. Epub 2010 Jul 1.
- Results publication: PubMed 18418404Ritgen M, Bottcher S, Stilgenbauer S, Bunjes D, Schubert J, Cohen S, Humpe A, Hallek M, Kneba M, Schmitz N, Dohner H, Dreger P; German CLL Study Group. Quantitative MRD monitoring identifies distinct GVL response patterns after allogeneic stem cell transplantation for chronic lymphocytic leukemia: results from the GCLLSG CLL3X trial. Leukemia. 2008 Jul;22(7):1377-86. doi: 10.1038/leu.2008.96. Epub 2008 Apr 17.
- Results publication: PubMed 23435461Dreger P, Schnaiter A, Zenz T, Bottcher S, Rossi M, Paschka P, Buhler A, Dietrich S, Busch R, Ritgen M, Bunjes D, Zeis M, Stadler M, Uharek L, Scheid C, Hegenbart U, Hallek M, Kneba M, Schmitz N, Dohner H, Stilgenbauer S. TP53, SF3B1, and NOTCH1 mutations and outcome of allotransplantation for chronic lymphocytic leukemia: six-year follow-up of the GCLLSG CLL3X trial. Blood. 2013 Apr 18;121(16):3284-8. doi: 10.1182/blood-2012-11-469627. Epub 2013 Feb 22.
- Results publication: PubMed 27391907Scheffold A, Jebaraj BMC, Jaramillo S, Tausch E, Steinbrecher D, Hahn M, Bottcher S, Ritgen M, Bunjes D, Zeis M, Stadler M, Uharek L, Scheid C, Hegenbart U, Hallek M, Kneba M, Schmitz N, Dohner H, Dreger P, Stilgenbauer S. Impact of telomere length on the outcome of allogeneic stem cell transplantation for poor-risk chronic lymphocytic leukaemia: results from the GCLLSG CLL3X trial. Br J Haematol. 2017 Oct;179(2):342-346. doi: 10.1111/bjh.14219. Epub 2016 Jul 8. No abstract available.
- Results publication: PubMed 28716861Kramer I, Stilgenbauer S, Dietrich S, Bottcher S, Zeis M, Stadler M, Bittenbring J, Uharek L, Scheid C, Hegenbart U, Ho A, Hallek M, Kneba M, Schmitz N, Dohner H, Dreger P. Allogeneic hematopoietic cell transplantation for high-risk CLL: 10-year follow-up of the GCLLSG CLL3X trial. Blood. 2017 Sep 21;130(12):1477-1480. doi: 10.1182/blood-2017-04-775841. Epub 2017 Jul 17. No abstract available.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Peter Dreger study chair
Universitaets-Kinderklinik Heidelberg
13 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1/2 study testing alemtuzumab, anti-thymocyte globulin and filgrastim in people with Chronic Lymphocytic Leukemia, run by German CLL Study Group at 13 sites in 2 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
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: finished, as of the sponsor's last update on 24 Jul 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 13 sites in Germany, Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Feasibility as measured by the proportion of eligible patients completing the transplant procedure successfully. The study lists 2 primary outcomes in all. 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 NCT00281983, which also lists 5 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 24 Jul 2017; AzTrials last refreshed its copy on 7 Nov 2026.