Please assess the completion status of the following clinical trial:

Trial Title: Tumor Hypoxia With HX4 PET in Several Diseases

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: DIAGNOSTIC
- Time Perspective: None
- Masking: NONE
- Phase: PHASE2
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Histological/cytological confirmed carcinoma of de esophagus, rectum or prostate or radiological suspicion for Grade IV glioma (primary brain tumor) or brain metastases~* WHO performance status 0 to 2.~* Adequate renal function (calculated creatinine clearance at least 60 ml/min).~* The patient is willing and capable to comply with study procedures~* 18 years or older~* Have given written informed consent before patient registration~Exclusion Criteria:~* Recent (\< 3 months) myocardial infarction~* Pregnant or breast feeding and willing to take adequate contraceptive measures during the study

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

Study Arms:
- [18F]HX4 PET imaging (Type: EXPERIMENTAL): Injection with the hypoxia tracer \[18F\]HX4 and PET imaging at baseline for esophageal, rectal, prostate cancer, primary brain tumor (grade IV glioma) and brain metastases and after 2 weeks of radiotherapy for esophageal, rectal and brain metastases

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