PF587 SELINEXOR, POMALIDOMIDE, AND DEXAMETHASONE (SPD) IN PATIENTS WITH RELAPSED OR REFRACTORY MULTIPLE MYELOMA
Notice bibliographique
Résumé
Background: The nuclear export protein Exportin 1 (XPO1) is overexpressed in a wide variety of cancers including multiple myeloma (MM) and associated with poor prognosis. Selinexor is a first‐in‐class Selective Inhibitor of Nuclear Export (SINE) compound that selectively binds and inactivates XPO1, therefore forces the nuclear retention and re‐activation of cell cycle regulators such as p53, FOXO, IkB, and Rb. Pomalidomide/dexamethasone (Pd) achieved an overall response rate (ORR) of 31% and progression‐free survival (PFS) rate of <4 months in patients (pts) refractory to prior bortezomib and lenalidomide ( Richardson et al, Blood 2014 ). Methods to increase response rate and depth are needed. Selinexor in combination with dexamethasone (dex) has demonstrated a 26.2% ORR in pts with triple‐class refractory myeloma including deep responses with very good partial response (VGPR) and 2 pts in a stringent complete response/minimal residual disease negative. It is hypothesized that the combination of SPd may improve the ORR, depth of response, and PFS. Aims: The primary objectives of the study were to determine the maximum tolerated dose (MTD), the recommended phase 2 dose (RP2D), and to assess the safety, tolerability, and preliminary efficacy of the combination of SPd in pts with RRMM. Methods: STOMP is amulticenter, open‐label, phase 1/2b, dose escalation study with an expansion phase.Eligiblity included pts with RRMM who received ≥2 prior therapies including lenalidomide (len) and a proteasome inhibitor (PI). Oral (PO) selinexor was evaluated in 2 different dosing schedules of once‐weekly (QW, 60 or 80 mg) or twice‐weekly (BIW, 60 or 80 mg), with escalating doses of pomalidomide (pom)2, 3, or 4 mg PO on Days 1–21, and low dose dexamethasone (dex) 20 mg BIW or 40 mg QW. In the expansion phase, all pts were pom naïve. Results: As of February 20 th 2019, 43 pts (22 male/21 female) have been enrolled. The median age is 61 years and pts received a median of 4 (range, 2 – 9) prior treatment regimens. Thirty‐nine pts were immunomodulatory imide drug (IMiD) refractory (26 refractory to len, 13 pts refractory to pom and len). The phase 1 dose escalation is ongoing. Enrollment is ongoing in 2 difference schedules: selinexor 80 mg/pom 2 mg and selinexor 60 mg/pom 4 mg in combination with dex. Six dose‐limiting toxicities (DLTs) were observed (see Table 1). Common hematologic SPd treatment‐related adverse events (TRAE) included (all grades, Grades 3/4): neutropenia (54%, 49%), thrombocytopenia (51%, 30%), anemia (47%, 30%). Common non‐hematologic TRAE were predominantly Grade 1/2 and include nausea (51%, 0%), fatigue (47%, 9%), anorexia (42%, 0%). Thirty‐seven pts were evaluable for response. Among pts who were pom naïve (n = 27), the ORR was 52% (5 VGPR, 9 partial response [PR]) and the median progression‐free survival (PFS) was 12.2 months. Among pts refractory to len/pom (n = 10) the ORR was 30% (2 PR, 1 unconfirmed PR) and the median PFS was 5.5 months. Summary/Conclusion: Once weekly selinexor can be safely combined with pom/dex. The all oral SPd combination is durable and active with a 52% ORR in pom‐naïve pts with heavily pretreated MM compared to previously published data of 31% ORR for pom/dex. The median PFS on SPd of 12.2 months in pom naïve pts is significantly longer than that observed with pom/dex (<4 months). No unexpected adverse events were noted. Cytopenias were expected and known with IMiD use. Non‐hematologic side effects were limited to Grade 1/2 events. The RP2D will be presented at the meeting and supports future phase 2/3 studies in RRMM. image
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 distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 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) | 0,001 | 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 tête enseignante, 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 ».