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43 Gimema Registry of Conception/Pregnancy in Adult Italian Patients Diagnosed with Chronic Myeloid Leukemia (CML): Report on 166 Outcomes

Program: Oral and Poster Abstracts
Type: Oral
Session: 632. Chronic Myeloid Leukemia: Therapy: Epidemiology, Prognosis, and Real Life Care
Hematology Disease Topics & Pathways:
Diseases, CML, Pregnancy, Study Population, Clinically relevant, Myeloid Malignancies
Saturday, December 1, 2018: 7:30 AM
Seaport Ballroom A (Manchester Grand Hyatt San Diego)

Elisabetta Abruzzese, MD1, Chiara Elena, MD2*, Fausto Castagnetti, MD, PhD3, Carlo Gambacorti-Passerini, MD4, Mario Annunziata5*, Luigia Luciano, MD6, Giorgina Specchia, MD7, Alessandra Iurlo8*, Isabella Capodanno9*, Patrizia Pregno10*, Antonella Gozzini, MD11*, Simona Sica, MD12*, Mario Tiribelli13*, Sara Galimberti14*, Monica Bocchia, MD, PhD15*, Clementina Caracciolo, MD16*, Giovanna Rege Cambrin, MD17*, Micaela Bergamaschi, MD18*, Anna Rita Scortechini, MD19*, Alessandro Rambaldi, MD20, Diamante Turri, MD21*, Claudio Fozza, MD22*, Mariella D'adda, MD23*, Lucia Mastrullo, MD24*, Marzia Salvucci, MD25*, Caterina Musolino, MD26*, Gianluca Gaidano, MD, PhD27, Filippo Gherlinzoni, MD28*, Anna d'Emilio, MD29*, Paola Fazi, MD30* and Michele Baccarani, MD31

1S. Eugenio Hospital, Tor Vergata University, Rome, Italy
2Hematology, IRCSS S. Matteo, Pavia, Jamaica
3Institute of Hematology "L. e A. Seràgnoli", DIMES, University of Bologna, Bologna, Italy
4School of Medicine and Surgery, University of Milano Bicocca, Monza, MB, Italy
5Hematology, Ospedale Cardarelli, Napoli, Italy
6Hematology Unit, Federico II University of Naples, Napoli, ITA
7Hematology - Dept. of Emergency and Organ Transplantation, University of Bari, Bari, Italy
8Hematology Division, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
9Hematology Department, Arcispedale Santa Maria Nuova - IRCCS Reggio, Reggio Emilia, Italy
10AZ OSP CITTA' DELLA SALUTE E SCIENZA TORINO, University of Torino, TORINO, Italy
11SC Terapie Cellulari e Medicina Trasfusionale, AOU Careggi, Florence, Italy
12Hematology Department, Fondazione Policlinico Universitario A. Gemelli IRCCS - Università Cattolica del Sacro Cuore, Roma, Italy
13Division of Hematology and BMT, Department of Medical Area, University of Udine, Udine, Italy
14Hematology Department, University of Pisa, Pisa, Italy
15Chair of Hematology, University of Siena, Azienda Ospedaliera Universitaria, Siena, Italy
16Hematology A.U. Paolo Giaccone, Palermo, Italy
17University of Turin, ORBASSANO TORINO, ITA
18Clinical Hematology Unit, IRCCS AOU S.Martino-IST, Genova, Italy
19Hematology Unit, A.O.U. Ospedali Riuniti, Ancona, Italy
20Hematology and Bone Marrow Transplantation Unit, ASST Papa Giovanni XXIII, Bergamo, Italy
21Hematology, Ospedali Riuniti Villa Sofia-Cervello, Palermo, Italy
22Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
23Department of Hematology, ASST Spedali Civili di Brescia, Brescia, Italy
24Ospedale San Gennaro, NAPOLI, ITA
25Hematology Unit, S. Maria delle Croci Hospital, Ravenna, Italy
26Divisione di Ematologia - Policlinico Universitario, Messina, Italy
27Department of Translational Medicine, Amedeo Avogadro University of Eastern Piedmont, Novara, Italy
28Division of Hematology, Ca’ Foncello Hospital, Treviso, ITA
29ULSS Ospedale S. Bortolo, Vicenza, Italy
30GIMEMA Foundation, Rome, Italy
31Institute of Hematology "L. and A. Seràgnoli", Department of Experimental, Diagnostic and Specialty Medicine, Bologna, Italy

Background. The availability of multiple tyrosine kinase inhibitors (TKIs) and precise molecular monitoring has dramatically changed the prognosis in CML patients. With proper medical management, the planning of a pregnancy in both male (M) and female (F) patients is now possible. Towards this goal, the GIMEMA CML working party initiated a retrospective and prospective study to describe all male conceptions/female pregnancy outcomes in the CML Italian population from January 2013.

Aims. The specific aims of this study were to analyze conceptions and pregnancies in male and female patients with regard to 3 general issues: 1) Illness issues, including CML treatment prior to conception/during/after pregnancy, transcript kinetics, the recovery of a lost response after therapy cessation, and the effects of treatment modifications (e.g., resistance, switching); 2) Conception/pregnancy issues, including planned, unplanned, spontaneous and medically assisted pregnancies (MAP), spontaneous/elective abortions, pregnancy progression, delivery, and breast feeding; and , 3) Post-natal health issues from birth to walking including speaking and academic performance.

Patients and methods. Patients included in the study had to meet the following criteria A) Age >18 yrs; B) Confirmed CML diagnosis; C) Conception or pregnancy; D) TKI treatment before, during and/or after pregnancy; and E) Signed, IRB-approved written informed consent form. Of the 143 enrollees, data were obtained from 135 patients (83M and 52F). A total number of 166 cases were analyzable. Male conceptions were 106, and female pregnancies 60.

Results 1) At time of conception 34 patients had no treatment (TF), 8 received interferon-a (IFN), and the remaining were treated with a TKI (Table 1). Considering only female patients, all stopped TKI treatment when pregnancy was discovered at 3-6 weeks (w). After placental maturation (>20w) 13 patients were treated with IFN (10), 2 with Imatinib, and 1 with Nilotinib (N). In this latter patient N concentration was tested in maternal plasma and cord blood at delivery and showed no transfer to the baby. Kinetics of rise was calculated in a subgroup of 17 patients. Doubling time [DT = duration x log(2) /log (final ratio)-log (initial ratio)] exhibits a bimodal trend, very short for some patients (5.8 days mean, range 4.5-8.2) and much longer for others (182 days mean, range 59.2-328.4), This result does not correlate with molecular status pre TF. Furthermore 76.5% of patients will not lose Major Molecular Response during pregnancy, while in TF, that is more than expected when compared to non pregnant controls (TFR). No cases of CML progression or resistance to re-treatment were observed. CML transcript ratios during pregnancy are shown in Fig.1.

2) The majority of pregnancies were planned. MAPs were reported in 5M and 3F. Two spontaneous conceptions occurred in 2M after allogeneic transplant. Eleven abortions before 12 w (2 M ,induced; 9F, 5 induced) were reported (not included in the 166 cases). Pregnancies in all cases progressed normally. In F there were 2 pre-eclampsia, 2 oligohydramnios, 1 abruption placenta. In 8M and 8 F babies were born pre term and 1M and 2F were small at birth with no further consequences. Forty-two F (70%) delivered spontaneously. Babies were born at a mean 40 w (34-44) in M, 39 w (33-42) in F. Breast feeding information was collected for 45F of which18 (29%) breast feed for at least one month (range 1-28 mo).

3) Post-natal information showed normal child development and growth. One respiratory arrest was noted at birth with rapid recovery and 1 macrocephaly was described with no further consequences. Of the 56 children >3 yrs old attending school (44M,12F), 2M presented with language problems and in one case autism was diagnosed. Other reported outcomes include 1 child diagnosed as having rheumatoid arthritis at 2 yr (F), and 1 diagnosed with celiac disease (M).

Conclusions TKI therapy has allowed CML patients to pursue a normal life including planning/managing a family. Males do not need to stop therapy to conceive due to the therapy’s non-genotoxic nature, in contrast to females who must cease therapy due to the teratogenic nature of TKIs. Kinetics of regrowth of the CML residual disease during pregnancy in female patients is different than in TFR patients. To our knowledge this is the largest multicentric study regarding CML and reproduction. Results and practical management will be presented.

Disclosures: Abruzzese: Novartis: Research Funding; Pfizer: Consultancy; Ariad: Consultancy; BMS: Consultancy. Castagnetti: Incyte: Consultancy, Honoraria; Bristol Myers Squibb: Consultancy, Honoraria; Novartis: Consultancy, Honoraria; Pfizer: Consultancy, Honoraria. Gambacorti-Passerini: Pfizer: Consultancy, Honoraria, Research Funding; BMS: Consultancy. Rambaldi: Pfizer: Consultancy; Novartis: Consultancy; Italfarmaco: Consultancy; Omeros: Consultancy; Roche: Consultancy; Celgene: Consultancy; Amgen Inc.: Consultancy. Gaidano: Roche: Consultancy, Honoraria; Morphosys: Honoraria; AbbVie: Consultancy, Honoraria; Gilead: Consultancy, Honoraria; Janssen: Consultancy, Honoraria; Amgen: Consultancy, Honoraria.

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