Efficacy of Pomalidomide on Motor Performance and Functional Abilities in Patients with Steroid Refractory Chronic Graft versus Host Disease: A Randomized Clinical Study.

IF 3.6 3区医学 Q2 HEMATOLOGY Transplantation and Cellular Therapy Pub Date : 2025-03-05 DOI:10.1016/j.jtct.2025.02.023

Jessica J Jorgensen, Galen O Joe, Rafael Jiménez-Silva, Pei-Shu Ho, Tiara Dunigan, Sandra A Mitchell, Steven Z Pavletic, Lauren M Curtis, Leora E Comis

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Abstract

Background: Deficits in motor performance and functional abilities represent a severe complication for individuals with steroid refractory chronic graft versus host disease (cGVHD) and is associated with decreased survival and high morbidity.

Objective: Characterize the impact of pomalidomide on motor and functional outcomes in patients with cGVHD.

Study design: Thirty-four adult patients with cGVHD were enrolled in a randomized and unblinded trial. Pomalidomide was administered orally at two dose levels: low (0.5mg/d) or high (initial 0.5 mg/d, escalating 0.5 mg/d every 2 weeks to a maximum 2mg/d). Efficacy was assessed primarily by the Activity Card Sort (ACS), 2 Minute Walk Test (2MWT), Medical Outcomes Study Short Form 36 (SF-36), Active Range of Motion (AROM), Disabilities of the Arm, Shoulder, and Hand (DASH), and Manual Abilities Measure 36 (MAM).

Results: Compared to baseline, the pooled sample of study participants at 6 months showed improvement in hand skills (MAM, P = 0.01), upper extremity (UE) function (DASH, P = 0.01), and health related quality of life (SF-36 Physical Component Summary score (PCS), P = 0.02). Though no statistical meaningful differences between the two dose groups were found, the low-dose group had greater improvements in AROM, walk distance, UE and hand function, and high-demand leisure and social subdomains of the ACS as compared to the high-dose group. Responders to pomalidomide performed better than nonresponders on most measures at the 6-month endpoint.

Conclusions: The study suggests pomalidomide, at both dose levels, may improve several aspects of motor and functional abilities. However, further study is warranted to determine if the trends found in this study, are sustained over time in larger, and in more diverse cGVHD populations. The findings highlight the potential utility of administering functional and motor tests, such as the ACS, DASH, and MAM, to patients with cGVHD, to fully elucidate the efficacy of treatment options for persons with steroid refractory cGVHD.

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