Please assess the completion status of the following clinical trial:

Trial Title: Impact of Head of Bed Elevation in Symptoms of Patients With Gastroesophageal Reflux Disease

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: SINGLE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Esophageal erosions~* Retrosternal pyrosis lasting ≥ 3 months~* Pyrosis and/or regurgitation with a frequency ≥ 3 nights per week~* GERD-associated sleep disturbance (insomnia, poor sleep quality) lasting ≥ 1 month~* GERD-associated sleep disturbance (insomnia, poor sleep quality) with a frequency ≥ 3 nights per week~Exclusion Criteria:~* Non-erosive gastroesophageal reflux disease (NERD)~* Peptic ulcer~* History of upper gastrointestinal surgery (except for cholecystectomy)~* Lactating or pregnant women~* Nighttime shift workers (12 am to 6 am)~* Obstructive sleep apnea hypopnea syndrome~* Chronic obstructive pulmonary disease~* Patients with nocturnal supplementary oxygen requirement~* Orthopnea~* Restless legs syndrome~* Patients consuming more than 3 cups of coffee per day~* Patients planning to travel beyond 3 time zones during study~* Patients being treated with sleep medication (e.g. anxiolytics, antihistamines, benzodiazepines) for less than 3 months~* Patients being treated with sleep medication (e.g. anxiolytics, antihistamines, benzodiazepines), when suspension or dose modification of this drugs is being planned during the study course

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

Study Arms:
- Head of bed elevation - Control (Type: OTHER): Participants will sleep with head of bed raised with standard 20 cm-height wooden blocks during a first period of 6 weeks. After a washout 2 week period, participants will sleep in a bed without inclination for a second period of 6 weeks. During the trial, every patient will receive standard pharmacological treatment with a proton pump inhibitor and/or sodium alginate, according to clinical judgement.
- Control - Head of bed elevation (Type: OTHER): Participants will sleep in a bed without inclination during a first period of 6 weeks. After a washout 2 week period, participants will sleep with head of bed raised with standard 20 cm-height wooden blocks for a second period of 6 weeks. During the trial, every patient will receive standard pharmacological treatment with a proton pump inhibitor and/or sodium alginate, according to clinical judgement.

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