Please assess the completion status of the following clinical trial:

Trial Title: Maximizing CRT Delivery by Using MultipolAr Coronary Sinus Lead FamiLy ACUITY® X4 - RALLY X4 Study

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

Eligibility Criteria:
Inclusion Criteria:~1. Subject is willing and capable of providing informed consent~2. Subject is planned to be implanted with an ACUITY X4® lead for left-ventricular pacing and sensing via the coronary venous system in conjunction with a compatible BSC pulse generator~3. Subject is willing and capable of participating in all visits associated with this study at an approved clinical study center and at the intervals defined by this CIP~4. Subject is age 18 or above, or of legal age to give informed consent specific to state and national law~Exclusion Criteria:~1. Subjects with a hypersensitivity to a maximum single dose of 0.51 mg dexamethasone acetate~2. Subject is enrolled in any other concurrent study without prior written approval from BSC, with the exception of local mandatory governmental registries and observational studies/registries that are not in conflict and do not affect the following:~   * Schedule of procedures for the RALLY X4 Study (i.e. should not cause additional or missed visits);~  * RALLY X4 Study outcome (i.e. involve medications that could affect the heart rate of the subject);~  * Conduct of the RALLY X4 Study per GCP/ ISO 14155:2011/ local regulations as applicable~3. Per the implanting physician's discretion, the subject is not a suitable candidate to receive the study device as determined during the implant procedure~4. Women of childbearing potential who are or might be pregnant at the time of study enrollment or ACUITY X4® lead implant.~5. Subject is unwilling or unable to participate in all scheduled study follow up visits at an approved study center~6. Subject does not anticipate being a resident of the area for the scheduled duration of the trial~7. Subject's physician does not allow participation~   -

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

Study Arms:
- Heart failure patients (Type: None): * Subjects with art failure who receive stable optimal pharmacologic therapy~* Moderate to severe heart failure (NYHA Class III-IV) with ejection fraction (EF) ≤ 35% and QRS duration ≥ 120 ms~* Left bundle branch block (LBBB) with QRS duration ≥ 130 ms, EF ≤ 30%, and mild (NYHA Class II) ischemic or non-ischemic heart failure or asymptomatic (NYHA Class I) ischemic heart failure.~The study is collecting observational data on regular CRT-D device implants with special focus on the left ventricular ACUITY X4® Lead Family' .

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