Very Good Partial Response and Complete Response Predict Superior Overall Survival and Progression Free Survival After Single Autologous Stem Cell Transplant in Patients with Multiple Myeloma,
Notice bibliographique
Résumé
Abstract Abstract 4111 In multiple myeloma (MM), the impact of complete response (CR) and very good partial response (VGPR) achievement has been shown mostly after introduction of high dose therapy (HDT) supported by autologous stem cell transplant (ASCT). Recently, the IFM group reported the impact of achievement of CR and VGPR in double ASCT. The purpose of this study is to confirm the prognostic value of CR/VGPR in a large group of patients treated with single ASCT. Methods All consecutive patients who underwent single ASCT at Princess Margaret Hospital between January 2000 and December 2007 were evaluated. Patients were mobilized with cyclophosphamide and G-CSF and majority were conditioned with melphalan 200mg/m2. Response to therapy was assessed according to the IMWC including VGPR. Progression Free Survival (PFS) and Overall Survival (OS) were measured from transplant date to the date of death or last follow-up. OS and DFS were analyzed using the Kaplan-Meier Method. The Cox proportional hazard model was used to assess CR and VGPR and some other prognostic markers at presentation such as age, B2Mg> 460 μmol/L, LDH> 350 IU/L, CRP> 20mg/L, albumin<35g/L and creatinine > 200 μmol/L. All p-values were 2-sided and statistically significant if <0.05. Results 788 patients were identified for the study; their median age was 56 years (30–73). Patient's characteristics are listed in Table 1. Response was assessed at day 100 after ASCT and showed a CR of 6%, PR of 37.5%, and VGPR of 53% (Overall Response rate of 95.5%). Median OS and PFS for the group were 77.43 months and 20.63 months respectively. The median OS and PFS were significantly better for patients who achieved CR/VGPR, 104.5 months versus 51.7 months, and 26.3 months versus 13.53 months respectively. With a median follow-up of 44 months there is no significant difference in OS for those patients who achieved VGPR/CR after induction therapy with novel agents. However, PFS is better in those patients receiving novel agents who achieved VGPR/CR (Median PFS of 24.63months versus 12.4 months respectively (p=0.01). Multivariate analysis shows CR/VGPR as an independent prognostic factor for OS and PFS (Fig 1 and 2). B2Mg> 460 μmol/L, LDH> 350 IU/L, CRP > 20mg/L, albumin<35g/L and creatinine > 200 μmol/L failed to be important factor for survival in the multivariate analysis. Our data suggests that VGPR/CR is clearly important in the pre-novel agents era and for the smaller group of patients who had novel agents induction there is a benefit in PFS and with a longer follow-up perhaps in OS. In conclusion, VGPR/CR remains a simple and powerful indicator in the context of single ASCT and should be considered a relevant objective for MM treatment. Table 1. Clinical characteristics of patients with Multiple Myeloma undergoing single ASCT Clinical characteristic N=788 Median Range % Age (years) 58 31–74 Male 59.4% Female 40.6% Hemoglobin (g/L) 114 54–180 Creatinine (μmol/L) 107 28–1409 B2-microglobulin ((μmol/L) (N=718) 508 260–7270 Albumin (g/L) (N=650) 38 23–54 IgG 51.1% IgA 31.3% IgM 0.4% IgD 0.7% Biclonal 9.9% Not Detected 6.6 Kappa 59.4% Lambda 32.9% Biclonal 2% Not Detected 5.7% Calcium (μmol/L) 2.29 1.62–4.66 LDH (IU/L) (N=754) 235 50–1470 Induction Treatment: 52.2% VAD 22.8% Dexamethasone 6.3% TD 2.3% CP 3.8% DPACE/DTPACE 1.7% DVD 8% CyBORD 2% VD Ab: VAD: Vincristine, Adriamycin and dexamethasone, TD: Thalidomide and Dexamethasone; CP: Cyclophosphamide and Prednisone, DVD: Doxil, Velcade and Dexamethasone, CyBORD: Cyclophosphamide, Bortezomib and Dexamethasone and VD: Valcade and Dexamethasone Disclosures: Jimenez-Zepeda: J & J: Honoraria. Reece:Bristol, Meyers, Squibb: Honoraria, Research Funding; Celgene: Honoraria, Research Funding; Janssen: Honoraria, Research Funding; Johnson&Johnson: Research Funding; Merck: Honoraria, Research Funding; Otsuka: Honoraria, Research Funding; Millennium: Research Funding; Amgen: Honoraria. Chen:Celgene Corporation: Consultancy, Honoraria, Research Funding. Kukreti:Celgene: Honoraria.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,002 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».