Inclusion Criteria:

* Histopathology confirmed PDAC
* Measurable disease per RECIST 1.1
* Local testing confirmed KRAS G12D mutation (tissue required for confirmatory central testing)
* ECOG PS=0 or 1

Adequate organ function

VS-7375 + cetuximab (2L PDAC) :

-Received only 1 prior Tx in the metastatic setting; prior adjuvant counts as a line if progressed within 6 months

VS-7375 + cetuximab (1L PDAC) :

-Treatment-naïve or received ≤ 1 cycle of SoC for metastatic disease

Exclusion criteria:

* Have any other documented co-existing common RAS mutation(s)
* Prior anti-cancer Tx within 4 weeks or drug-specific timeline within first treatment dose, whichever shorter
* Major surgery within 4 weeks of first treatment dose
* Radiation therapy (RT) within 1 week of first treatment dose; RT to brain or lung within 2 weeks of first treatment dose
* History of drug-induced Interstitial Lung Disease
* Receipt of prior direct RAS inhibitor
* Untreated or symptomatic CNS metastasis
* Receipt of strong CYP3A4 inhibitor/inducer or CYP3A4 sensitive substrates with narrow therapeutic index within 14 days or drug-specific timeline within first treatment dose, whichever is shorter
* Receipt of PPI or H2 blocker within 5 days
* Inability to swallow oral medication
* Other protocol-defined inclusion/exclusion criteria may apply