Docetaxel With or Without TAK-117 (MLN1117) in Participants With Locally Advanced or Metastatic Non-small Cell Lung Cancer

The purpose of this study is to determine the recommended phase 2 dose (RP2D) of TAK-117 when administered in combination with docetaxel in participants with non-small cell lung cancer (NSCLC) and to evaluate efficacy, safety, and tolerability of TAK-117 administered alone and in combination with docetaxel at the RP2D in participants with locally advanced or metastatic non-small cell lung cancer.

The drug being evaluated in this study is called TAK-117. TAK-117 is tested in combination with docetaxel versus docetaxel alone for the treatment of non-small cell lung cancer (NSCLC).

This study consisted of 2 phases:

* Phase 1b - dose escalation phase
* Phase 2 - expansion phase.

The study enrolled 14 patients with NSCLC who have been treated with multiple prior lines of therapies will be enrolled for Phase 1b. The participants will receive docetaxel (36 mg/m\^2) intravenous (IV) and TAK-117 tablets, orally administered, once daily in 21-day dosing cycles. The TAK-117 dose will be escalated until recommended Phase 2 dose (RP2D) is determined.

Each part of the adaptive Phase 2 portion of the study is designed as a stand-alone, randomized study evaluating PFS as the primary efficacy measure in a total of 60 participants between the 2 treatment arms: TAK-117 plus docetaxel versus docetaxel alone. An event-driven analysis of PFS will be performed after each part of Phase 2. On the basis of the PFS analysis of the preceding part of the study, the study may be stopped for efficacy or futility, or proceed to the next part. However, Phase 2 of the study was cancelled.

Study drug will be administered in 21-day dosing cycles. During each phase of the study, participants will be treated with a maximum of 9 cycles of either docetaxel alone or docetaxel plus TAK-117. Subsequently, participants treated with docetaxel plus TAK-117 may continue to receive TAK-117 monotherapy until progression of disease, occurrence of unacceptable toxicities or death.

The maximum duration of treatment for participants will be 12 months unless it is determined that a participant would derive benefit from continued treatment beyond 12 months. Participants will continue to be followed after discontinuation of study drug to collect PFS and OS data. Participants may withdraw from therapy at any time.

This multicenter trial will be conducted in North America. The overall time to participate in this study is up to 24 months.

Eligibility Criteria:
Inclusion Criteria

* Has a histologically and/or cytologically confirmed diagnosis of NSCLC (squamous or nonsquamous).

  - For Phase 2 of the study, has a diagnosis of mixed squamous and nonsquamous (or adenosquamous) NSLC.
* Has locally advanced or metastatic disease (Stage IIIb or Stage IV) with radiographically or clinically evaluable lesions.
* Has experienced failure of at least 1 prior chemotherapy regimen:

  * For Phase 2 of the study:
  * Participants must have received 1 prior platinum-based chemotherapy regimen (excluding a docetaxel-containing regimen) for advanced or metastatic (Stage IIIb or Stage IV) disease followed by documented progressive disease (PD).
  * A drug provided as maintenance therapy following cytotoxic chemotherapy will be considered to be part of that regimen.
  * Participants who received prior therapy with paclitaxel as a part of the platinum-based doublet front-line regimen without PD on therapy.
  * Participants who, after the front-line, platinum-based, non-docetaxel containing chemotherapy, have been treated with 1 line of nivolumab or other immune-checkpoint inhibitors but progressed on or after the therapy.
  * For Phase 1b of the study: Participants who have experienced failure of multiple lines of prior chemotherapy are eligible.
  * For Phase 2, has archived or fresh tumor biopsy samples (obtained during screening) sufficient for genotyping.
* Has adequate organ function, before the first dose of study drug.
* Has Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1.
* Female participants who are postmenopausal for at least 1 year before the screening visit or are surgically sterile, or are of childbearing potential, agree to practice 1 highly effective method and 1 additional effective (barrier) method of contraception, at the same time, from the time of signing the informed consent through 30 days (or longer, as mandated by local labeling) after the last dose of study drug, or agree to practice true abstinence.
* Female participants must agree to not donate eggs (ova) during the course of this study and for 30 days after receiving their last dose of TAK-117 and, for docetaxel, for as long as is mandated by local labeling.
* Male participants agree to practice highly effective barrier contraception during the entire study treatment period and through 120 days after the last dose of TAK-117 and, for docetaxel, for as long as is mandated by local labeling, or agree to practice true abstinence.
* Male participants must agree to not donate sperm during the course of the study and for 120 days after receiving their last dose of TAK-117 and, for docetaxel, for as long as is mandated by local labeling.
* Has suitable venous access for the study-required blood sampling.
* Has recovered (ie, \<= Grade 1 toxicity or eligibility per this protocol is met) from the reversible effects of prior anticancer therapy.
* In the opinion of the investigator, the participant or legal guardian is capable of understanding and complying with protocol requirements for the duration of the study.

Exclusion Criteria:

* Previous treatment with a PI3K or AKT inhibitor.
* Prior cancer therapy or other investigational therapy within 2 weeks before the first administration of study drug or failed to recover from the reversible effects of prior anticancer therapies. For prior therapies with a half-life longer than 3 days, the interval must be at least 28 days before the first administration of study drug, and the participant must have documented progressive disease.
* Has poorly controlled diabetes mellitus defined as HbA1c \> 6.5%.
* Has taken strong inhibitors or strong inducers of CYP3A4 within 14 days before the first dose of study drug.
* Has taken histamine-H2 receptor antagonists and/or neutralizing antacids within 24 hours before the first administration of study drug.
* Has taken proton pump inhibitors within 7 days before the first administration of study drug.
* Has a condition that requires the concomitant use of any of the protocol-excluded medications, supplements, or food products during the course of the study .
* Has any clinically significant co-morbidities.
* Has acute myocardial infarction within 6 months before starting study drug, current or history of New York Heart Association Class III or IV heart failure; evidence of current uncontrolled cardiovascular conditions including cardiac arrhythmias, angina, pulmonary hypertension, or electrocardiogram (ECG) evidence of acute ischemia or active conduction system abnormalities; Fridericia's corrected QT interval \> 475 milliseconds (msec) (males) or \> 450 msec (females) on a 12-lead ECG during the Screening period; or abnormalities on 12-lead ECG including, but not limited to, changes in rhythm and intervals that in the opinion of the investigator are considered to be clinically significant.
* Has known, previously diagnosed human immunodeficiency virus infection or active chronic hepatitis B or C.
* Has brain metastasis, unless has completed definitive therapy, is not on steroids, has a stable neurologic status for at least 2 weeks after completion of the definitive therapy and steroids, and does not have neurologic dysfunction that would confound the evaluation of neurologic and other adverse events.
* Has active secondary malignancy that requires treatment.
* Has any serious medical or psychiatric illness, including drug or alcohol abuse.
* Male participants who intend to donate sperm during the course of this study or 120 days after receiving their last dose of TAK-117 and, for docetaxel, for as long as is mandated by local labeling.
* Female participants who are lactating and breastfeeding or have a positive serum pregnancy test during the Screening period or a positive urine pregnancy test on Day 1 before administration of the first dose of study drug.
* Is unwilling or unable to abide by the requirements of the study.