Clonal Hematopoiesis is a Risk Factor for Chemotherapy-Related Complications

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

Overview

'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.

Interventions

• Other Blood test for determination of CHIP
  Patients will have one additional blood draw to be sent for DNA extraction and sequencing for CHIP.

Primary outcome measures

• Determine if CHIP is an independent risk factor for chemotherapy-induced complications. [Time frame: Up to 24 weeks]
• Emerging dysmyelopoiesis after chemotherapy [Time frame: Up to 12 months after completion of chemotherapy]

Secondary outcome measures (3)

• 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]

Eligibility criteria

Inclusion criteria

• 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 \[ex: cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP), cyclophosphamide, vincristine and prednisone (CVP), Fludarabine, fludarabine cyclophosphamide (FC), Bendamustine, cisplatin, cytarabine, dexamethasone (DHAP), etoposide, cytarabine, cisplatin, prednisone (ESHAP), gemcitabine, cisplatin and dexamethasone (GDP), Cladribine, Cyclophosphamide, Epirubicin, Vincristine, Prednisone (CEOP), dose-adjusted Dose-adjusted etoposide, prednisone, vincristine, cyclophosphamide, doxorubicin (DA-EPOCH)\]

Exclusion criteria

• 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

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Study design

Observational model

Cohort

Study locations

Canada · 1 center

• Sunnybrook Health Sciences Centre — Toronto

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 PMID 25426837
• Genovese 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/NEJMoa PMID 25426838
• McKerrell 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.2015.02.00 PMID 25732814
• Xie 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. PMID 25326804
• Steensma 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. PMID 25931582

Identifiers

NCT: NCT04053439 · CHIP Lymphoma

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗