LymphomaNCT04053439
Clonal Hematopoiesis is a Risk Factor for Chemotherapy-Related Complications
An observational study of Lymphoma and Chemotherapeutic Toxicity, run by Sunnybrook Health Sciences Centre at 1 site in Canada.
Trial summary
'CHIP' stands for Clonal Hematopoiesis of Indeterminate Significance, which are mutations in bone marrow stem cells that give that population of cells a survival or 'clonal' advantage for growth. Read more about this study
- Who is it for?
- Ages 60 years and older
- Conditions the study is for
- Lymphoma, Chemotherapeutic Toxicity
- What is being tested?
- Blood test for determination of CHIP
- How many people
- 188 participants
- Where
- 1 siteCanada
- Study dates
- 8 Aug 2019to Sep 2026
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
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 60 years and older
- All sexes
- Adult, Older adult
Study population: Elderly patients (>= 60 years old) being treated at a tertiary cancer centre in Toronto, ON.
Who may be able to join
- Diagnosis of a lymphoma (ex: diffuse large B cell lymphoma (DLBCL), follicular lymphoma, marginal zone lymphoma, small lymphocytic lymphoma/chronic lymphocytic leukemia, Hodgkin's lymphoma, peripheral T cell lymphoma, anaplastic large cell lymphoma, angioimmunoblastic lymphoma, hairy cell leukemia, Waldenstrom's macroglobulinemia, anaplastic large cell lymphoma, small lymphocytic lymphoma/chronic lymphocytic leukemia, and mantle cell lymphoma).
- Commencing first or second-line cytotoxic chemotherapy for lymphoma with or without rituximab [ex: cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP), cyclophosphamide, vincristine and prednisone (CVP), Fludarabine, fludarabine cyclophosphamide (FC), Bendamustine, cisplatin, cytarabine, dexamethasone (DHAP), etoposide, cytarabine, cisplatin, prednisone (ESHAP), gemcitabine, cisplatin and dexamethasone (GDP), Cladribine, Cyclophosphamide, Epirubicin, Vincristine, Prednisone (CEOP), dose-adjusted Dose-adjusted etoposide, prednisone, vincristine, cyclophosphamide, doxorubicin (DA-EPOCH)]
Who cannot join
- Pre-existing diagnosis of myeloid neoplasm
- Circulating lymphocyte count > 10 x 109/L
- Significant uncontrolled renal or hepatic impairment [>1.5 x upper limit of normal (ULN) bilirubin, >1.5 x ULN Alanine aminotransferase (ALT), >1.5 x ULN creatinine]
- HIV
- Active infection
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Canada1 site, 1 recruiting
- Recruiting
Sunnybrook Health Sciences Centre
Toronto, Ontario, M4N 3M5
Rena Buckstein, MD, 416-480-5847, rena.buckstein@sunnybrook.ca
About this study
Official title: A Single Centre Cohort Study to Determine if Clonal Hematopoieses of Indeterminate Potential (CHIP) is a Risk Factor for Chemotherapy-Related Complications in Lymphoma Patients >= 60 Receiving Cytotoxic Chemotherapy
'CHIP' stands for Clonal Hematopoiesis of Indeterminate Significance, which are mutations in bone marrow stem cells that give that population of cells a survival or 'clonal' advantage for growth. This study investigates whether CHIP in lymphoma patients aged 60 years and older is a risk factor for chemotherapy-related complications like low blood counts, infections, cardiac events, hospitalizations, dose delays and dose reductions, and failure to recover normal blood counts after chemotherapy finishes.
Read the detailed description
'CHIP' stands for Clonal Hematopoiesis of Indeterminate Significance (1-4). Up to 20% of individuals in the general population acquire mutations in their bone marrow stem cells as they age that give that population of cells a survival or 'clonal' advantage for growth. The frequency of CHIP may be higher in patients with other cancers. CHIP increases with age, and has been shown to be a risk factor associated with cardiovascular disease and a tendency to the development of bone marrow cancers at a rate of 1% per year (1,2,5). CHIP is also associated with the development of bone marrow cancers that occur after chemotherapy. The investigators want to investigate whether CHIP is also a risk factor for chemotherapy-related complications like low blood counts, infections, cardiac events, hospitalizations, dose delays and dose reductions. They are also interested in determining if CHIP may explain why some patients do not recover normal blood counts after chemotherapy finishes.
The results from this study may help physicians better understand why some people have difficulty with chemotherapy (in the short and long-term) while others do not. Screening for CHIP in older patients may become a recommended standard that allows physicians to tailor anti-cancer treatment to the patient.
- Conditions
- Lymphoma, Chemotherapeutic Toxicity
- Being tested
- Blood test for determination of CHIP
- Keywords
- Clonal Hematopoiesis of Indeterminate Significance, Chemotherapy, Lymphoma, Chemotherapy complications
- Medical subject headings
- Lymphoma
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Blood test for determination of CHIPOther
Patients will have one additional blood draw to be sent for DNA extraction and sequencing for CHIP.
| Study group | Role | What they receive |
|---|---|---|
| Lymphoma patients >=60 receiving cytotoxic chemotherapy | Lymphoma patients >=60 receiving cytotoxic chemotherapy who have consented to DNA extraction and analysis for CHIP. Receives: Other: Blood test for determination of CHIP |
What is being measured
The primary outcome is the main question the study is designed to answer.
Determine if CHIP is an independent risk factor for chemotherapy-induced complications.
Complications during chemotherapy defined as any or all of the following: febrile neutropenia, new grades 3-4 anemia, thrombocytopenia and neutropenia immediately (day -1 or 0) preceding next cycle of chemotherapy, secondary dose reductions or dose delays due to myelosuppression or toxicity, cardiovascular toxicity (arrhythmias, congestive heart failure, symptomatic coronary disease), secondary granulocyte colony-stimulating factor (GCSF) use due to neutropenia, inability to complete all scheduled cycles due to chemotherapy related complications, dose delays that exceed 7 days.
Measured: Up to 24 weeks
Emerging dysmyelopoiesis after chemotherapy
The number of patients with and without CHIP who, following at 6 and 12 months post chemotherapy have:
- Hemoglobin, white blood cell (WBC) or platelet (PLT) count that does not recover to normal pre-chemotherapy levels
- Persistant macrocytosis defined as mean cell volume (MCV) > 96 fl
- Persistant anisocytosis defined as red cell distribution width (RDW) > 14.5%
Measured: Up to 12 months after completion of chemotherapy
Secondary outcomes (3)
Expansion of clonal hematopoietic stem cells
Expansion of clonal hematopoietic stem cells over time measured using next generation sequencing of 40 myeloid genes in patients with CHIP at baseline defined by variant allele frequency (VAF) that increases by 10% of more or the emergence of new clones
Measured: Up to 5 years after completion of chemotherapy
Development of therapy-related myeloid neoplasm
Therapy-related myeloid neoplasm defined as any of myelodysplastic syndrome (MDS), acute myeloid leukemia (AML), myeloproliferative neoplasm (MPN), MDS/MPN diagnosed by bone marrow exam
Measured: Up to 5 years after completion of chemotherapy
Overall survival
Overall survival
Measured: Up to 5 years after completion of chemotherapy
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Aug 2019
- Study start8 Aug 2019
- Primary completionJan 2026 (estimated)
- Study completionSep 2026 (estimated)
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 LymphomaStudies of the same condition, open and under way.
- More trials run by Sunnybrook Health Sciences CentreThe sponsor's other registered studies.
- 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
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 188 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Sunnybrook Health Sciences Centre
- Sponsor type
- University, hospital or other
- Collaborators
- The Leukemia and Lymphoma Society, Queen's University
- Responsible party
- Sponsor
- Investigators
- Rena Buckstein, MD, FRCPC, Principal investigator, Sunnybrook Health Sciences CentreHubert Tsui, MD, Principal investigator, Sunnybrook Health Sciences CentreMichael Rauh, MD, Principal investigator, Queen's University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04053439
- Sponsor's protocol ID
- CHIP Lymphoma
- Status last verified
- Jun 2025
- First submitted
- 8 Aug 2019
- Last updated
- 8 Jul 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Jaiswal S, Fontanillas P, Flannick J, Manning A, Grauman PV, Mar BG, Lindsley RC, Mermel CH, Burtt N, Chavez A, Higgins JM, Moltchanov V, Kuo FC, Kluk MJ, Henderson B, Kinnunen L, Koistinen HA, Ladenvall C, Getz G, Correa A, Banahan BF, Gabriel S, Kathiresan S, Stringham HM, McCarthy MI, Boehnke M, Tuomilehto J, Haiman C, Groop L, Atzmon G, Wilson JG, Neuberg D, Altshuler D, Ebert BL. Age-related clonal hematopoiesis associated with adverse outcomes. N Engl J Med. 2014 Dec 25;371(26):2488-98. doi: 10.1056/NEJMoa1408617. Epub 2014 Nov 26.
PubMed 25426837Genovese G, Kahler AK, Handsaker RE, Lindberg J, Rose SA, Bakhoum SF, Chambert K, Mick E, Neale BM, Fromer M, Purcell SM, Svantesson O, Landen M, Hoglund M, Lehmann S, Gabriel SB, Moran JL, Lander ES, Sullivan PF, Sklar P, Gronberg H, Hultman CM, McCarroll SA. Clonal hematopoiesis and blood-cancer risk inferred from blood DNA sequence. N Engl J Med. 2014 Dec 25;371(26):2477-87. doi: 10.1056/NEJMoa1409405. Epub 2014 Nov 26.
PubMed 25426838McKerrell T, Park N, Moreno T, Grove CS, Ponstingl H, Stephens J; Understanding Society Scientific Group; Crawley C, Craig J, Scott MA, Hodkinson C, Baxter J, Rad R, Forsyth DR, Quail MA, Zeggini E, Ouwehand W, Varela I, Vassiliou GS. Leukemia-associated somatic mutations drive distinct patterns of age-related clonal hemopoiesis. Cell Rep. 2015 Mar 3;10(8):1239-45. doi: 10.1016/j.celrep.2015.02.005. Epub 2015 Feb 26.
PubMed 25732814Xie M, Lu C, Wang J, McLellan MD, Johnson KJ, Wendl MC, McMichael JF, Schmidt HK, Yellapantula V, Miller CA, Ozenberger BA, Welch JS, Link DC, Walter MJ, Mardis ER, Dipersio JF, Chen F, Wilson RK, Ley TJ, Ding L. Age-related mutations associated with clonal hematopoietic expansion and malignancies. Nat Med. 2014 Dec;20(12):1472-8. doi: 10.1038/nm.3733. Epub 2014 Oct 19.
PubMed 25326804Steensma DP, Bejar R, Jaiswal S, Lindsley RC, Sekeres MA, Hasserjian RP, Ebert BL. Clonal hematopoiesis of indeterminate potential and its distinction from myelodysplastic syndromes. Blood. 2015 Jul 2;126(1):9-16. doi: 10.1182/blood-2015-03-631747. Epub 2015 Apr 30.
PubMed 25931582
Study at a glance
From the registry record, last updated by the sponsor on 8 Jul 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Single Centre Cohort Study to Determine if Clonal Hematopoieses of Indeterminate Potential (CHIP) is a Risk Factor for Chemotherapy-Related Complications in Lymphoma Patients >= 60 Receiving Cytotoxic Chemotherapy
- ClinicalTrials.gov ID
- NCT04053439
- Acronym / sponsor ID
- CHIP Lymphoma
- Conditions
- Lymphoma, Chemotherapeutic Toxicity
- Keywords
- Clonal Hematopoiesis of Indeterminate Significance, Chemotherapy, Lymphoma, Chemotherapy complications
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 188 participants (estimated)
- Lead sponsor
- Sunnybrook Health Sciences CentreUniversity, hospital or other
- Collaborators
- The Leukemia and Lymphoma Society, Queen's University
- Study start
- 8 Aug 2019 (actual)
- Primary completion
- Jan 2026 (estimated)
- Study completion
- Sep 2026 (estimated)
- First posted
- 12 Aug 2019 (actual)
- 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.
'CHIP' stands for Clonal Hematopoiesis of Indeterminate Significance, which are mutations in bone marrow stem cells that give that population of cells a survival or 'clonal' advantage for growth. This study investigates whether CHIP in lymphoma patients aged 60 years and older is a risk factor for chemotherapy-related complications like low blood counts, infections, cardiac events, hospitalizations, dose delays and dose reductions, and failure to recover normal blood counts after chemotherapy finishes.
Detailed description
'CHIP' stands for Clonal Hematopoiesis of Indeterminate Significance (1-4). Up to 20% of individuals in the general population acquire mutations in their bone marrow stem cells as they age that give that population of cells a survival or 'clonal' advantage for growth. The frequency of CHIP may be higher in patients with other cancers. CHIP increases with age, and has been shown to be a risk factor associated with cardiovascular disease and a tendency to the development of bone marrow cancers at a rate of 1% per year (1,2,5). CHIP is also associated with the development of bone marrow cancers that occur after chemotherapy. The investigators want to investigate whether CHIP is also a risk factor for chemotherapy-related complications like low blood counts, infections, cardiac events, hospitalizations, dose delays and dose reductions. They are also interested in determining if CHIP may explain why some patients do not recover normal blood counts after chemotherapy finishes.
The results from this study may help physicians better understand why some people have difficulty with chemotherapy (in the short and long-term) while others do not. Screening for CHIP in older patients may become a recommended standard that allows physicians to tailor anti-cancer treatment to the patient.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Lymphoma patients >=60 receiving cytotoxic chemotherapy | – | Other: Blood test for determination of CHIPLymphoma patients >=60 receiving cytotoxic chemotherapy who have consented to DNA extraction and analysis for CHIP. |
Who may qualify
- Ages
- 60 years and older
- Sex
- All
- Age groups
- Adult, Older adult
- Study population
- Elderly patients (>= 60 years old) being treated at a tertiary cancer centre in Toronto, ON.
Key inclusion criteria (2 listed)
- Diagnosis of a lymphoma (ex: diffuse large B cell lymphoma (DLBCL), follicular lymphoma, marginal zone lymphoma, small lymphocytic lymphoma/chronic lymphocytic leukemia, Hodgkin's lymphoma, peripheral T cell lymphoma, anaplastic large cell lymphoma, angioimmunoblastic lymphoma, hairy cell leukemia, Waldenstrom's macroglobulinemia, anaplastic large cell lymphoma, small lymphocytic lymphoma/chronic lymphocytic leukemia, and mantle cell lymphoma).
- Commencing first or second-line cytotoxic chemotherapy for lymphoma with or without rituximab [ex: cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP), cyclophosphamide, vincristine and prednisone (CVP), Fludarabine, fludarabine cyclophosphamide (FC), Bendamustine, cisplatin, cytarabine, dexamethasone (DHAP), etoposide, cytarabine, cisplatin, prednisone (ESHAP), gemcitabine, cisplatin and dexamethasone (GDP), Cladribine, Cyclophosphamide, Epirubicin, Vincristine, Prednisone (CEOP), dose-adjusted Dose-adjusted etoposide, prednisone, vincristine, cyclophosphamide, doxorubicin (DA-EPOCH)]
Key exclusion criteria (5 listed)
- Pre-existing diagnosis of myeloid neoplasm
- Circulating lymphocyte count > 10 x 109/L
- Significant uncontrolled renal or hepatic impairment [>1.5 x upper limit of normal (ULN) bilirubin, >1.5 x ULN Alanine aminotransferase (ALT), >1.5 x ULN creatinine]
- HIV
- Active infection
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 |
|---|---|---|
| Blood test for determination of CHIPPatients will have one additional blood draw to be sent for DNA extraction and sequencing for CHIP. | Other | Lymphoma patients >=60 receiving cytotoxic chemotherapy |
Primary outcome
Determine if CHIP is an independent risk factor for chemotherapy-induced complications.
Time frame: Up to 24 weeks
Complications during chemotherapy defined as any or all of the following: febrile neutropenia, new grades 3-4 anemia, thrombocytopenia and neutropenia immediately (day -1 or 0) preceding next cycle of chemotherapy, secondary dose reductions or dose delays due to myelosuppression or toxicity, cardiovascular toxicity (arrhythmias, congestive heart failure, symptomatic coronary disease), secondary granulocyte colony-stimulating factor (GCSF) use due to neutropenia, inability to complete all scheduled cycles due to chemotherapy related complications, dose delays that exceed 7 days.
Emerging dysmyelopoiesis after chemotherapy
Time frame: Up to 12 months after completion of chemotherapy
The number of patients with and without CHIP who, following at 6 and 12 months post chemotherapy have: 1. Hemoglobin, white blood cell (WBC) or platelet (PLT) count that does not recover to normal pre-chemotherapy levels 2. Persistant macrocytosis defined as mean cell volume (MCV) > 96 fl 3. Persistant anisocytosis defined as red cell distribution width (RDW) > 14.5%
3 secondary outcomes
Expansion of clonal hematopoietic stem cells
Time frame: Up to 5 years after completion of chemotherapy
Development of therapy-related myeloid neoplasm
Time frame: Up to 5 years after completion of chemotherapy
Overall survival
Time frame: Up to 5 years after completion of chemotherapy
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 8 Jul 2025.
- Background: PubMed 25426837Jaiswal S, Fontanillas P, Flannick J, Manning A, Grauman PV, Mar BG, Lindsley RC, Mermel CH, Burtt N, Chavez A, Higgins JM, Moltchanov V, Kuo FC, Kluk MJ, Henderson B, Kinnunen L, Koistinen HA, Ladenvall C, Getz G, Correa A, Banahan BF, Gabriel S, Kathiresan S, Stringham HM, McCarthy MI, Boehnke M, Tuomilehto J, Haiman C, Groop L, Atzmon G, Wilson JG, Neuberg D, Altshuler D, Ebert BL. Age-related clonal hematopoiesis associated with adverse outcomes. N Engl J Med. 2014 Dec 25;371(26):2488-98. doi: 10.1056/NEJMoa1408617. Epub 2014 Nov 26.
- Background: PubMed 25426838Genovese G, Kahler AK, Handsaker RE, Lindberg J, Rose SA, Bakhoum SF, Chambert K, Mick E, Neale BM, Fromer M, Purcell SM, Svantesson O, Landen M, Hoglund M, Lehmann S, Gabriel SB, Moran JL, Lander ES, Sullivan PF, Sklar P, Gronberg H, Hultman CM, McCarroll SA. Clonal hematopoiesis and blood-cancer risk inferred from blood DNA sequence. N Engl J Med. 2014 Dec 25;371(26):2477-87. doi: 10.1056/NEJMoa1409405. Epub 2014 Nov 26.
- Background: PubMed 25732814McKerrell T, Park N, Moreno T, Grove CS, Ponstingl H, Stephens J; Understanding Society Scientific Group; Crawley C, Craig J, Scott MA, Hodkinson C, Baxter J, Rad R, Forsyth DR, Quail MA, Zeggini E, Ouwehand W, Varela I, Vassiliou GS. Leukemia-associated somatic mutations drive distinct patterns of age-related clonal hemopoiesis. Cell Rep. 2015 Mar 3;10(8):1239-45. doi: 10.1016/j.celrep.2015.02.005. Epub 2015 Feb 26.
- Background: PubMed 25326804Xie M, Lu C, Wang J, McLellan MD, Johnson KJ, Wendl MC, McMichael JF, Schmidt HK, Yellapantula V, Miller CA, Ozenberger BA, Welch JS, Link DC, Walter MJ, Mardis ER, Dipersio JF, Chen F, Wilson RK, Ley TJ, Ding L. Age-related mutations associated with clonal hematopoietic expansion and malignancies. Nat Med. 2014 Dec;20(12):1472-8. doi: 10.1038/nm.3733. Epub 2014 Oct 19.
- Background: PubMed 25931582Steensma DP, Bejar R, Jaiswal S, Lindsley RC, Sekeres MA, Hasserjian RP, Ebert BL. Clonal hematopoiesis of indeterminate potential and its distinction from myelodysplastic syndromes. Blood. 2015 Jul 2;126(1):9-16. doi: 10.1182/blood-2015-03-631747. Epub 2015 Apr 30.
- 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.
Rena Buckstein, MD, FRCPC principal investigator
Sunnybrook Health Sciences Centre
Hubert Tsui, MD principal investigator
Sunnybrook Health Sciences Centre
Michael Rauh, MD principal investigator
Queen's University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Lymphoma and Chemotherapeutic Toxicity, run by Sunnybrook Health Sciences Centre at 1 site in Canada.
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 2 inclusion and 5 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: looking for participants now, as of the sponsor's last update on 8 Jul 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in 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.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Prasha Sasitharakumar, MHSc ((416) 480-5000 ext. 7937, prasha.sasitharakumar@sunnybrook.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Determine if CHIP is an independent risk factor for chemotherapy-induced complications. (time frame: Up to 24 weeks). 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 NCT04053439, 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 8 Jul 2025.