Efficacy
Efficacy Results
OJEMDA delivered clinical results in the FIREFLY-1 trial
Major efficacy outcome using RAPNO-LGG criteria1
Overall response rate
0%
95% CI: 40, 63 (n=39/76)
ORR (CR + PR + MR)
- CR: 0% (n=0)
- PR: 36.8% (n=28)
- MR: 14.5% (n=11)
- Based on RANO-LGG (2011) criteria (n=76), the ORR was 53% (95% CI: 41, 64), including 20 patients each with PR and MR, respectively
Clinical benefit rate using RAPNO-LGG criteria1-3
Clinical Benefit Rate*
0%
(n=62/76)
CBR with SD for
≥12 months†
0%
(n=43/76)
CBR (ORR + SD)
- ORR: 51.3% (n=39)
- SD: 30.3% (n=23)
CBR with SD for ≥12 months
- ORR: 51.3% (n=39)
- SD ≥12 months: 5.3% (n=4)
*CBR is the percentage of patients who achieved the best response of CR + PR + MR + SD based on descriptive analysis.
†CBR with SD for ≥12 months based on RAPNO criteria is a prespecified secondary endpoint in the clinical trial.
- Among patients with SD <12 months (n=19), 8 patients are continuing treatment, and 1 patient has entered a drug holiday at the time of data cutoff
Patient Cases
Discover hypothetical cases when a patient with pLGG could be appropriate for OJEMDA
MEET EMILY
- Emily was diagnosed 4 years ago with pLGG after a localized tumor in the optic pathway was suggested by MRI
- Histology was consistent with pilocytic astrocytoma
Age: 6
Height: 3' 6"
Weight: 45 lb
Sex: F
Race/ethnicity: White/
Not Hispanic
GENOMIC TEST RESULTS
- KIAA1549-BRAF fusion–positive
MEDICAL HISTORY
- Diagnosed due to lethargy and decreased visual activity, including loss of sight (right eye)
- Surgical resection was ruled out due to tumor’s location, but biopsy was recommended
PRIOR TREATMENT
- Achieved partial response with chemotherapy (total treatment duration: 12 months)
- Side effects of chemotherapy included anemia, grade 3 neutropenia, and neutropenic fever
- Now shows signs of radiographic and clinical progression after 2 years in remission
WHY OJEMDA MAY BE RIGHT FOR PATIENTS LIKE EMILY
OJEMDA was studied in patients like Emily
LOCATION: 51% had an optic pathway glioma1
HISTOLOGY: 94% had tumors with astrocytic histology3
ALTERATION TYPE: 74% had a KIAA1549-BRAF fusion or rearrangement1
MEDIAN AGE: 8.5 years (range 2 to 21 years)1
Patients in the FIREFLY-1 trial saw clinically meaningful response rates1
Overall population (N=76):
- ORR: 51% (95% CI: 40, 63)
- Median TTR: 5.3 months (range 1.6-11.2 months)
Consider OJEMDA as your first choice for patients like Emily who progressed after chemotherapy.
BRAF=v-Raf murine sarcoma viral oncogene homolog B1; CBR=clinical benefit rate; CR=complete response; DOR=duration of response; MAPK=mitogen-activated protein kinase; MAPKi=mitogen-activated protein kinase inhibitor; MEK=mitogen-activated protein kinase kinase; MR=minor response; MRI=magnetic resonance imaging; NE=not estimable; ORR=overall response rate; pLGG=pediatric low-grade glioma; PR=partial response; RANO=Response Assessment in Neuro-Oncology; RANO-LGG=Response Assessment in Neuro-Oncology for Low-Grade Glioma; RAPNO=Response Assessment in Pediatric Neurology-Oncology; RAPNO-LGG=Response Assessment in Pediatric Neuro-Oncology for Low-Grade Glioma; R/R=relapsed/refractory; SD=stable disease; SPPD=sum of the products of the perpendicular diameters; TTR=time to response.
View a well-tolerated safety profile
See the safety profile
References
- 1. OJEMDA™ [Package Insert]. Brisbane, CA: Day One Biopharmaceuticals, Inc.; 2024.
- 2. Kilburn LB, Khuong-Quang DA, Hansford JR, et al. The type II RAF inhibitor tovorafenib in relapsed/refractory pediatric low-grade glioma: the phase 2 FIREFLY-1 trial. Nat Med. 2024;30(207-217). doi:10.1038/s41591-023-02668-y
- 3. Data on file. Clinical report. Day One Biopharmaceuticals, Inc.; August 29, 2023.
- 4. Study of efficacy and safety of dabrafenib in combination with trametinib in pediatric patients with BRAF V600 mutation positive LGG or relapsed or refractory HGG tumors. https://clinicaltrials.gov/study/NCT02684058. Published December 13, 2023. Accessed February 27, 2024.
- 5. Fangusaro J, Witt O, Driever PH, et al. Response assessment in paediatric low-grade glioma: recommendations from the Response Assessment in Pediatric Neuro-Oncology (RAPNO) working group. Lancet Oncol. 2020;21(6):e305-e316. doi:10.1016/S1470-2045(20)30064-4