Please assess the completion status of the following clinical trial:

Trial Title: Pharmacokinetics of Systemic Anti-Cancer Therapies in the Cerebrospinal Fluid (CSF) of Patients With Advanced Cancer

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: CASE_ONLY
- Primary Purpose: None
- Time Perspective: CROSS_SECTIONAL
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~1. Metastatic cancer patients on systemic anti-cancer therapy (chemotherapy, endocrine therapy, HER2 targeted therapy, immune therapy).~2. Patients must be able to have a lumbar puncture within 2 half-lives of the last dose of systemic therapy.~3. Patients undergoing an LP for any reason with known advanced cancer on systemic anti-cancer therapy are eligible.~4. Patients with new or previously treated brain metastases are eligible.~5. Patients may have received prior stereotactic radiosurgery to the brain and/or whole brain radiation.~6. No limitations on prior systemic or intrathecal therapies.~7. There are no restrictions on systemic therapy at enrollment.~8. Laboratory criteria: normal renal function: creatinine \< 1.5 x upper limit of normal (ULN)), liver function: bilirubin \< 1.5 x ULN, transaminases \< 2 x ULN, except in known hepatic disease, wherein may be \< 5 x ULN, and blood counts: WBC ≥ 2.0, Neutrophils ≥1500, platelets ≥100,000, Hemoglobin ≥ 10.~9. Age \> 18 years~10. Patients must have the ability to give informed consent.~11. Patients must have a signed informed consent form prior to enrollment on study.~Exclusion Criteria:~1. No history of lumbar surgery or other pre-existing spinal conditions that would preclude a safe, reliable lumbar puncture.~2. Patients should have no significant psychiatric illness or medical illness that would preclude the ability to comply with the protocol.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Based on this trial design, predict the completion outcome and termination type (if applicable).