Moving CAR T-cell therapy to earlier treatment lines is crucial. This approach targets cancer before it develops resistance and, more importantly, utilizes patient T-cells that are healthier and more effective, not having been damaged by extensive prior chemotherapy regimens.

CELMoDs are being actively trialed as a maintenance therapy after CAR T-cell treatment. The strategy is to leverage the CELMoDs' ability to enhance T-cell function and upregulate effector T-cells to boost the activity and persistence of the CAR-T product, potentially leading to more durable responses and preventing relapse.

Despite FDA warnings, the actual risk of developing a secondary T-cell lymphoma after CAR-T for lymphoma is exceedingly rare. Experts contextualize this as an anecdotal risk for a potentially curative therapy, with baseline germline abnormalities possibly predisposing some patients.

Data from both DLBCL and follicular lymphoma studies show that recent bendamustine exposure negatively impacts T-cell quality, leading to poorer CAR T-cell therapy outcomes. This effect is most pronounced if the drug was given within a year of T-cell collection, making it a critical factor in long-term treatment sequencing.

Unlike some targeted therapies that lead to antigen loss, treatment with the CD19-directed antibody tafasitamab does not appear to eliminate CD19 expression on lymphoma cells. This is a critical finding, as it preserves the target for subsequent potent therapies like CD19-directed CAR T-cells.

Using a BCMA bispecific antibody first can exhaust a patient's T-cells or cause tumors to lose the BCMA target, rendering a subsequent BCMA-targeted CAR-T therapy ineffective. The optimal sequence is CAR-T first, which preserves T-cell function and BCMA expression, leaving bispecifics as a viable later-line option.

The first successful CAR T-cells targeted CD19, a protein on leukemia cells but also on healthy B-cells. The therapy worked because humans can live without B-cells. This "tolerable collateral damage" was serendipitous and highlights the primary challenge for other cancers: finding targets that won't cause fatal damage to healthy organs.

Experts vehemently state that patients ineligible for autologous stem cell transplant are not necessarily ineligible for CAR-T therapy. This corrects a critical misconception, urging community oncologists to refer these patients for CAR-T evaluation as they may still be candidates.

Before initiating a CD20-targeting bispecific antibody in patients who have failed CAR-T therapy, a new biopsy is mandatory. Up to 30% of these patients experience CD20 antigen loss, which would render the bispecific therapy ineffective and necessitates choosing a drug with a different target.