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Hydroxocobalamin

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Glutamine

The glutaminase inhibitor telaglenastat will be administered orally, twice daily with food, every day in combination with standard-of-care pembrolizumab plus chemotherapy by intravenous (IV) infusion every 3 weeks.

Placebo will be administered orally twice daily with food every day in combination with standard-of-care pembrolizumab plus chemotherapy by IV infusion every 3 weeks.

Telaglenastat

Carboplatin Chemotherapy

Pemetrexed Chemotherapy

Pembrolizumab Immunotherapy

Placebo

Orally, once daily beginning 7 days prior to the first dose of pemetrexed and continue until 21 days after the last dose of pemetrexed.

Folic acid 400 -1000 μg

Vitamin B12 1000 μg Intramuscular injection one week prior to the first dose of pemetrexed and once every 3 cycles (9 weeks) thereafter. Subsequent vitamin B12 injections may be given the same day as pemetrexed administration.

Vitamin B12 1000 μg

For prophylaxis, orally twice per day (or equivalent). Taken the day before, day of, and day after pemetrexed administration.

Dexamethasone 4 mg

Emil Kuriakose, MD

This is a Phase 2, randomized, multicenter, double-blind study of the glutaminase inhibitor telaglenastat with standard-of-care pembrolizumab and chemotherapy versus placebo with standard-of-care pembrolizumab and chemotherapy for first line treatment of metastatic disease in patients with KEAP1/NRF2-mutated, stage IV, nonsquamous, non-small cell lung cancer (NSCLC). The study primary endpoints are PFS per RECIST v. 1.1 and safety. KEAP1/NRF2 mutation status (for eligibility) and STK11/LKB1 status (for stratification) will be determined by next generation sequencing. A commercial liquid biopsy (circulating tumor DNA) NGS test will be provided to study participants free of charge.

KEAPSAKE: A Study of Telaglenastat (CB-839) With Standard-of-Care Chemoimmunotherapy in 1L KEAP1/NRF2-Mutated, Nonsquamous NSCLC

A Phase 2 Randomized, Multicenter, Double-Blind Study of the Glutaminase Inhibitor Telaglenastat With Pembrolizumab and Chemotherapy Versus Placebo With Pembrolizumab and Chemotherapy in First-Line, Metastatic KEAP1/NRF2-Mutated, Nonsquamous, Non-Small Cell Lung Cancer (NSCLC)

Duration of investigator-determined PFS per RECIST v1.1 in the intent-to-treat (ITT) population

ORR is defined as the percentage of patients with complete response (CR) or partial response (PR) according to the RECIST v1.1 criteria as assessed by the investigator.

DOR is defined as the duration of response for patients achieving a CR or PR

Calithera Biosciences, Inc

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
KEAPSAKE: A Study of Telaglenastat (CB-839) With Standard-of-Care Chemoimmunotherapy in 1L KEAP1/NRF2-Mutated, Nonsquamous NSCLC	NCT04265534	Non-Small Cell ... Non-squamous No... Non-Squamous No... KEAP1 Gene Muta... NRF2 Gene Mutat... NFE2L2 Gene Mut...	Telaglenastat Carboplatin Che... Pemetrexed Chem... Pembrolizumab I... Placebo Folic acid 400 ... Vitamin B12 100... Dexamethasone 4...	18 Years -	Calithera Biosciences, Inc
KEAPSAKE: A Study of Telaglenastat (CB-839) With Standard-of-Care Chemoimmunotherapy in 1L KEAP1/NRF2-Mutated, Nonsquamous NSCLC	NCT04265534	Non-Small Cell ... Non-squamous No... Non-Squamous No... KEAP1 Gene Muta... NRF2 Gene Mutat... NFE2L2 Gene Mut...	Telaglenastat Carboplatin Che... Pemetrexed Chem... Pembrolizumab I... Placebo Folic acid 400 ... Vitamin B12 100... Dexamethasone 4...	18 Years -	Calithera Biosciences, Inc

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