Please assess the completion status of the following clinical trial:

Trial Title: Chronotropic Incompetence (CI) Diagnostic Algorithm in Heart Failure Patients

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: DIAGNOSTIC
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion criteria for the case group:~* Patient is greater than 18 years of age and less than 70 years of old.~* Patient is willing and able to give informed consent.~* Patient has been diagnosed with stable chronic HF according to European Society of Cardiology 2012 HF guidance.~* New York Heart Association class I- III, including with HF with preserved ejection fraction and HF with reduced ejection fraction patients.~* Patients can perform moderate exercise.~* Left ventricular ejection fraction less than 55% but greater than 35%.~Inclusion criteria for the control group:~* Subject is greater than 18 years of age and less than 70 years of old.~* Subject is willing and able to give informed consent.~Exclusion criteria for the case group:~* Patient is unable or unwilling to sign the patient informed consent.~* Patient has implantable pacemaker, Implantable cardiovert defibrillator (ICD) or cardiac resynchronize therapy (CRT) device.~* Patient has at least one pacemaker, ICD or CRT indications.~* Patients has persistent atrial fibrillation (AF).~* Patient whose hear rate baseline at the rest is greater than 95 beats per minutes (BPM).~* Patient has contraindications for cardio-pulmonary exercise testing, including but not limited to, unstable angina, decompensated heart failure, active pericarditis or myocarditis and ECG ST-segment shift \> 2mm at the resting.~* New York Heart Association Class IV.~* Less than 45 days after myocardial infarction.~* Less than 3 months after acute heart failure.~* Patient has uncontrolled hypertension.~* Patient is pregnant.~* Patient has a medical condition that would limit study participation.~* Patient is enrolled in a concurrent study that may affect the outcome of this study.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 70 Years
- Healthy Volunteers: f

Study Arms:
- Case group (Type: EXPERIMENTAL): At the beginning of the study, each subject of the case group will complete echo examination and related lab test for BNP. During the study, each subject will have a six minutes' walk test and 24 hour ambulatory monitoring while having an ActiGraph device placed on his/her wrist and a Holter device with ECG electrodes placed on his/her chest. The treadmill test is optional to patients per physicians' instruction and/or patients' own judgment. It would be performed at the end of the study if chosen.
- Control group (Type: PLACEBO_COMPARATOR): Each subject of the control group will do the same test and examination with the subjects in the case group.

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