Dose Escalation Study of MLN0128 in Combination With Paclitaxel, With/Without Trastuzumab, in Subjects With Advanced Solid Malignancies

This is a Phase I, open-label study consisting of a dose escalation phase in advanced solid
malignancies to determine the MTD of oral administration of MLN0128 in 1 or more dosing
schedules, combined with paclitaxel on Days 1, 8 and 15 of each cycle, followed by an
expansion phase for further safety and preliminary efficacy. Once the MTD is determined
for each of the dosing schedules evaluated, a dose and schedule will be selected for the
expansion phase, which may enroll subjects into 2 arms in parallel:

- Arm A will consist of HER2-/unknown cancer subjects receiving MLN0128+paclitaxel

- Arm B will consist of HER2+ cancer subjects receiving MLN0128+paclitaxel plus weekly
trastuzumab

Inclusion Criteria:

- Voluntary written consent

- Locally advanced or metastatic solid tumors with the exception of primary brain
tumor, and have failed or are not eligible for standard of care therapy

- Eastern Cooperative Oncology Group (ECOG) performance status 0-1

- Ability to swallow oral medications

- For women of child-bearing potential, negative serum or urine pregnancy test within
14 days prior to the first study drug administration and use of physician-approved
method of birth control from 30 days prior to 30 days following the last study drug
administration

- Male subjects must be surgically sterile or must agree to use physician-approved
contraception during the study and for 30 days following the last study drug
administration

- Clinical laboratory values as specified in the protocol

- For expansion phase (Arm A) - HER2-/unknown subjects will be enrolled

- For expansion phase (Arm B) - HER2+ cancer subjects will be enrolled

Exclusion Criteria:

- Diagnosis of primary brain tumor

- Have received prior cancer or other investigational therapy within 2 weeks prior to
the first administration of study drug

- Known impaired cardiac function or clinically significant cardiac disease

- Known treatment with systemic corticosteroid within one week prior to the first
administration of study drug

- Diabetes mellitus

- HIV infection

- Known active cardiovascular disease condition as specified in protocol

- Pregnancy (positive serum or urine pregnancy test) or breast feeding

- Malabsorption due to prior gastrointestinal (GI) surgery, GI disease

- Other clinically significant co-morbidities

Please note that there are additional inclusion and exclusion criteria. The study center
will determine if you meet all of the criteria.

Site personnel will explain the trial in detail and answer any question you may have if
you do qualify for the study. You can then decide whether or not you wish to participate.
If you do not qualify for the trial, site personnel will explain the reasons