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Anti-B-cell maturation antigen (BCMA) chimeric antigen receptor (CAR) T-cell therapy bb21217 for relapsed and refractory multiple myeloma: results from the phase 1 CRB-402 study

GSE289406 Homo sapiens (human) RNA-seq (gene expression) 75 samples Submitted 2025/08/01 Platform GPL18573
At a glance

RNA-seq (gene expression) · human · 75 samples

What it is
RNA-seq (gene expression)Gene activity measured by sequencing. The summary does not mention single-cell work, so this is most likely bulk: one average per sample, the usual starting point for comparing groups.
Organism
Homo sapiens (human)
Topic
Multiple myelomaThis series is part of our curated briefing on it.
Samples
75 samples: 75 samples, each with a distinct title — no replicated groupsGroups are read from the sample names, not from the paper. Check the list below.
Data you can get
A processed table (series matrix) and supplementary files from NCBI; the raw sequencing reads from ENA. Which of these hold counts depends on the study, so check the file list.
Summary (written by the submitters)
Chimeric antigen receptor (CAR) T-cell therapy enriched for a memory-like phenotype may persist and function longer than a non-enriched product, thereby improving duration of response (DOR). We conducted a phase 1 study with bb21217 (NCT03274219), an anti-B-cell maturation antigen CAR T-cell therapy manufactured in the presence of bb007 (phosphoinositide 3-kinase inhibitor) to enrich for T cells with a memory-like phenotype, in patients with relapsed/refractory multiple myeloma.
Read the full summary ↓
No new safety concerns were raised with bb21217 therapy. The objective response rate was 69.4% and median DOR was 23.8 (95% confidence interval, 16.8–34.8) months. Analysis of drug product established an association between early memory phenotype and robust expansion and depth of response. Examination of baseline characteristics indicated that tumor burden and prior therapies influenced DOR. This supports the generation of CAR T cells early in a disease course when tumor burden is lower and source material exhibits a more naïve phenotype.
This dataset
Download · which file do I need?

Direct links to NCBI and ENA, no account and no request form. Pick by what you want to do: take the small processed table to look, the supplementary files to re-analyse, or the original raw data to start over.

1 · Just have a look

Processed table

The series matrix: one table of values per sample as the submitters processed it. The smallest download, and it opens in Excel or R. Start here to see what the data look like.

2 · Re-analyse it

Supplementary files

The count tables and other files the authors uploaded. Take only the samples you need, or the whole study as GSE289406_RAW.tar (it can run to tens of gigabytes).

3 · Start from the raw reads

Raw sequencing reads

The original FASTQ files, straight from the sequencer, held at ENA. Large, and you align them yourself, so only choose this if you need to re-process the study from scratch.

What the files usually look like: For RNA-seq the counts are usually a table among the supplementary files (look for 'counts', 'expression', 'FPKM' or 'TPM' in the file name). The series matrix of a sequencing study is sometimes nearly empty.

Also filed as BioProject PRJNA1222865 and SRA study SRP563467. Searching any of these in the dataset finder brings you back here.

Study design
75 samples, each with a distinct title — no replicated groups

Any grouping that defines a comparison lives in the sample characteristics, which GEO records separately from the titles.

How we read this: Read from 75 sample titles: 75 distinct titles with little repetition. These groups are guessed from the sample names, not taken from the paper, so check them against the sample list below before relying on them.

Samples in this study

+ 35 more — browse all 75 samples with per-sample file links →

More Multiple myeloma datasets

Search all human RNA-seq datasets in GEO →

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Metadata from NCBI GEO, cached and refreshed periodically — the NCBI page above is authoritative. Downloads link straight to NCBI/ENA; nothing is proxied through BioTransfer.