Please select the eligibility criteria that correspond to the clinical trial below.
Title: A 12-Week Study to Evaluate the Efficacy and Safety of Fluticasone Furoate/Vilanterol Inhalation Powder (FF/VI) 100/25 mcg Once Daily Compared With Vilanterol Inhalation Powder (VI) 25 mcg Once Daily in Subjects With Chronic Obstructive Pulmonary Disease (COPD)
Brief Summary: This is a Phase IIIa, multicenter, randomized, stratified (reversibility status), double-blind, parallel-group study to evaluate the efficacy and safety of FF/VI 100/25 micrograms (mcg) once daily (QD) compared with VI 25 mcg QD, administered in the morning via the ELLIPTA™ inhaler. The primary objective of this study is to evaluate the contribution on lung function (as measured by trough forced expiratory volume in one second \[FEV1\]) of FF 100 mcg to the FF/VI 100/25 mcg QD combination by comparison of the latter with VI 25 mcg QD and the safety of FF/VI 100/25 mcg over a 12-week treatment period in subjects with COPD. ELLIPTA™ is a registered trademark of GlaxoSmithKline.


Options:
A: Inclusion Criteria:

* A current clinical diagnosis of Chronic Obstructive Pulmonary Disease
* Documented Chronic Obstructive Pulmonary Disease symptoms for more than 2 years
* A smoking history of at least 10 pack years

Exclusion Criteria:

* History and/or current clinical diagnosis of asthma
* History and/or current clinical diagnosis of atopic diseases such as allergic rhinitis
B: Inclusion Criteria:

* Type of subject: Outpatient.
* Informed Consent: A signed and dated written informed consent prior to study participation.
* Age: Subjects 40 years of age or older at Visit 1.
* Gender: Male or female subjects.

A female is eligible to enter and participate in the study if she is of:

Non-child bearing potential (i.e. physiologically incapable of becoming pregnant, including any female who is post-menopausal or surgically sterile). Surgically sterile females are defined as those with a documented hysterectomy and/or bilateral oophorectomy or tubal ligation. Post-menopausal females are defined as being amenorrhoeic for greater than 1 year with an appropriate clinical profile, e.g. age appropriate, \> 45 years, in the absence of hormone replacement therapy.

OR

Child bearing potential, has a negative pregnancy test at screening, and agrees to one of the following acceptable contraceptive methods used consistently and correctly (i.e. in accordance with the approved product label and the instructions of the physician for the duration of the study - screening to follow-up contact):

* Abstinence
* Oral Contraceptive, either combined or progestogen alone
* Injectable progestogen
* Implants of levonorgestrel
* Estrogenic vaginal ring
* Percutaneous contraceptive patches
* Intrauterine device (IUD) or intrauterine system (IUS) that meets the SOP effectiveness criteria as stated in the product label
* Male partner sterilization (vasectomy with documentation of azoospermia) prior to the female subject's entry into the study, and this male is the sole partner for that subject. For this definition, "documented" refers to the outcome of the investigator's/designee's medical examination of the subject or review of the subject's medical history for study eligibility, as obtained via a verbal interview with the subject or from the subject's medical records.
* Double barrier method: condom and an occlusive cap (diaphragm or cervical/vault caps) with a vaginal spermicidal agent (foam/gel/film/cream/suppository)

  * COPD Diagnosis: An established clinical history of COPD in accordance with the definition by the American Thoracic Society/European Respiratory Society \[Celli, 2004\].
  * Smoking History: Current or former cigarette smokers with a history of cigarette smoking of \>=10 pack-years \[number of pack years = (number of cigarettes per day / 20) x number of years smoked (e.g., 20 cigarettes per day for 10 years, or 10 cigarettes per day for 20 years)\]. Previous smokers are defined as those who have stopped smoking for at least 6 months prior to Visit 1.

Note: Pipe and/or cigar use cannot be used to calculate pack-year history

* Severity of Disease: A pre and post-albuterol/salbutamol FEV1/FVC ratio of \<0.70 and a pre and post-albuterol/salbutamol FEV1 of FEV1 of \<=70% of predicted normal values calculated using NHANES III reference equations at Visit 1 \[Hankinson, 1999; Hankinson, 2010\].
* Dyspnea: A score of ≥2 on the Modified Medical Research Council Dyspnea Scale (mMRC) at Visit 1.

Exclusion Criteria:

* Pregnancy: Women who are pregnant or lactating or are planning on becoming pregnant during the study.
* Asthma: A current diagnosis of asthma.
* Other Respiratory Disorders: Known alpha 1 antitrypsin deficiency, active lung infections (such as tuberculosis), and lung cancer are absolute exclusionary conditions. A subject who, in the opinion of the investigator, has any other significant respiratory conditions in addition to COPD should be excluded. Examples may include clinically significant bronchiectasis, pulmonary hypertension, sarcoidosis, or interstitial lung disease.
* Other Diseases/Abnormalities: Subjects with historical or current evidence of clinically significant cardiovascular, neurological, psychiatric, renal, hepatic, immunological, endocrine (including uncontrolled diabetes or thyroid disease) or hematological abnormalities that are uncontrolled and/or a previous history of cancer in remission for \<5 years prior to Visit 1 (localized carcinoma of the skin that has been resected for cure is not exclusionary). Significant is defined as any disease that, in the opinion of the investigator, would put the safety of the subject at risk through participation, or which would affect the efficacy or safety analysis if the disease/condition exacerbated during the study.
* Contraindications: A history of allergy or hypersensitivity to any anticholinergic/muscarinic receptor antagonist, beta2-agonist, lactose/milk protein or magnesium stearate or a medical condition such as narrow-angle glaucoma, prostatic hypertrophy or bladder neck obstruction that, in the opinion of the study physician contraindicates study participation or use of an inhaled anticholinergic.
* Hospitalization: Hospitalization for COPD or pneumonia within 12 weeks prior to Visit 1.
* Lung Resection: Subjects with lung volume reduction surgery within the 12 months prior to Screening (Visit 1).
* 12-Lead ECG: An abnormal and significant ECG finding from the 12-lead ECG conducted at Visit 1, including the presence of a paced rhythm on a 12-lead electrocardiogram (ECG) which causes the underlying rhythm and ECG to be obscured. Investigators will be provided with ECG reviews conducted by a centralized independent cardiologist to assist in evaluation of subject eligibility. Specific ECG findings that preclude subject eligibility are listed in Appendix 4. The study investigator will determine the medical significance of any ECG abnormalities not listed in Appendix 4.
* Medication Prior to Spirometry: Unable to withhold albuterol/salbutamol for the 4 hour period required prior to spirometry testing at each study visit.
* Use of certain medications according to defined time intervals prior to Screening (Visit 1).
* Oxygen: Use of long-term oxygen therapy (LTOT) described as oxygen therapy prescribed for greater than 12 hours a day. As-needed oxygen use (i.e., \>=12 hours per day) is not exclusionary.
* Nebulized Therapy: Regular use (prescribed for use every day, not for as-needed use) of short-acting bronchodilators (e.g., albuterol/salbutamol) via nebulized therapy.
* Pulmonary Rehabilitation Program: Participation in the acute phase of a pulmonary rehabilitation program within 4 weeks prior to Visit 1. Subjects who are in the maintenance phase of a pulmonary rehabilitation program are not excluded.
* Drug or Alcohol Abuse: A known or suspected history of alcohol or drug abuse within 2 years prior to Visit 1.
* Affiliation with Investigator Site: Is an investigator, sub-investigator, study coordinator, employee of a participating investigator or study site, or immediate family member of the aforementioned that is involved in this study.
* Previous use of study drug: Previous participation in DB2113360 or DB2113374.
C: Inclusion Criteria:

* Type of subject: outpatient
* Informed consent: Subjects must give their signed and dated written informed consent to participate.
* Gender: Male or female subjects A female is eligible to enter and participate in the study if she is of: Non-child bearing potential (i.e., physiologically incapable of becoming pregnant, including any female who is post-menopausal or surgically sterile). Surgically sterile females are defined as those with a documented hysterectomy and/or bilateral oophorectomy or tubal ligation. Post-menopausal females are defined as being amenorrhoeic for greater than 1 year with an appropriate clinical profile, e.g., age appropriate, history of vasomotor symptoms. However in questionable cases, a blood sample with FSH \> 40MIU/ml and estradiol \<40pg/ml (\<140 pmol/L) is confirmatory. OR

Child bearing potential, has a negative pregnancy test at screening, and agrees to one of the following acceptable contraceptive methods used consistently and correctly (i.e., in accordance with the approved product label and the instructions of the physician for the duration of the study - screening to follow-up contact):

* Complete abstinence from intercourse from screening until the Follow-Up Phone Contact; or
* Male partner is sterile (vasectomy with documentation of azoospermia) prior to female subject entry into the study, and this male partner is the sole partner for that subject; or
* Implants of levonorgestral inserted for at least 1 month prior to the study medication administration but not beyond the third successive year following insertion; or
* Injectable progestogen administered for at least 1 month prior to study medication administration and administered until the Follow-Up Phone Contact; or
* Oral contraceptive (combined or progestogen only) administered for at least one monthly cycle prior to study medication administration; or
* Double barrier method: condom or occlusive cap (diaphragm or cervical/vault caps) plus spermicidal agent (foam/gel/film/cream/suppository); or
* An intrauterine device (IUD), inserted by a qualified physician, with published data showing that the highest expected failure rate is less than 1% per year; or
* Estrogenic vaginal ring; or
* Percutaneous contraceptive patches

  * Age: ≥40 years of age at Screening (Visit 1)
  * COPD diagnosis: Subjects with a clinical history of COPD in accordance with the following definition by the American Thoracic Society/European Respiratory Society \[Celli, 2004\]: COPD is a preventable and treatable disease characterized by airflow limitation that is not fully reversible. The airflow limitation is usually progressive and is associated with an abnormal inflammatory response of the lungs to noxious particles or gases, primarily caused by cigarette smoking. Although COPD affects the lungs, it also produces significant systemic consequences.
  * Tobacco use: Subjects with a current or prior history of ≥10 pack-years of cigarette smoking at Screening (Visit 1). Former smokers are defined as those who have stopped smoking for at least 6 months prior to Visit 1. Note: Pipe and/or cigar use cannot be used to calculate pack-year history. Number of pack years = (number of cigarettes per day/20) x number of years smoked
  * Severity of Disease:
* Subject with a measured post-albuterol/salbutamol FEV1/FVC ratio of ≤0.70 at Screening (Visit 1)
* Subjects with a measured post-albuterol/salbutamol FEV1 \<70% of predicted normal values calculated (via centralized vendor equipment) using NHANES III reference equations \[Hankinson, 1999\] at Screening (Visit 1). Post-bronchodilator spirometry will be performed approximately 10-15 minutes after the subject has self-administered 4 inhalations (i.e., total 400mcg) of albuterol/salbutamol via an MDI with a valved-holding chamber. The study provided central spirometry equipment will calculate the FEV1/FVC ratio and FEV1 percent predicted values.

  * History of Exacerbations: A documented history (e.g., medical record verification) of at least one COPD exacerbation in the 12 months prior to Visit 1 that required either oral corticosteroids, antibiotics and/or hospitalization. Prior use of antibiotics alone does not qualify as an exacerbation history unless the use was associated with treatment of worsening symptoms of COPD, such as increased dyspnea, sputum volume, or sputum purulence (color). Subject verbal reports are not acceptable.

Exclusion Criteria:

Subjects meeting any of the following criteria must not be enrolled in the study:

* Pregnancy: Women who are pregnant or lactating or are planning on becoming pregnant during the study.
* Asthma: Subjects with a current diagnosis of asthma. (Subjects with a prior history of asthma are eligible if they have a current diagnosis of COPD)
* α1-antitrypsin deficiency: Subjects with α1-antitrypsin deficiency as the underlying cause of COPD
* Other respiratory disorders: Subjects with active tuberculosis, lung cancer, bronchiectasis, sarcoidosis, lung fibrosis, pulmonary hypertension, interstitial lung diseases or other active pulmonary diseases
* Lung resection: Subjects with lung volume reduction surgery within the 12 months prior to Screening (Visit 1)
* Chest X-ray (or CT scan): Subjects with a chest X-ray (or CT scan) that reveals evidence of clinically significant abnormalities not believed to be due to the presence of COPD. A chest X-ray must be taken at Screening (Visit 1) if a chest X-ray or CT scan is not available within 6 months prior to Visit 1. For sites in Germany, if a chest X-ray (or CT scan) is not available in the 6 months preceding Screening (Visit 1), the subject will not be eligible for the study.
* Risk Factors for Pneumonia: immune suppression (HIV, Lupus, etc) or other risk for pneumonia (e.g. neurological disorders affecting control of the upper airway, such as Parkinson's, Myasthenia Gravis, etc).
* A moderate and severe COPD exacerbation that has not resolved at least 14 days prior to Visit 1 and at least 30 days following the last dose of oral corticosteroids (if applicable).
* Pneumonia and/or moderate and severe COPD exacerbation at Visit 1 Note: Subjects who experience a pneumonia and/or exacerbation at Screening (Visit 1) must be not continue in the study, but may be re-screened at a later time provided the pneumonia and/or COPD exacerbation has resolved prior to the re-screening visit. At the Re-screening Visit, the chest x-ray should confirm resolution of pneumonia. The Re-screening Visit must be conducted at least ≥ 14 days following the resolution date of the exacerbation and/or pneumonia and at least 30 days following the last dose of oral corticosteroids (if applicable).
* Other diseases/abnormalities: Subjects with historical or current evidence of clinically significant cardiovascular (i.e., pacemaker), neurological, psychiatric, renal, hepatic, immunological, endocrine (including uncontrolled diabetes or thyroid disease) or haematological abnormalities that are uncontrolled. Significant is defined as any disease that, in the opinion of the investigator, would put the safety of the subject at risk through participation, or which would affect the efficacy or safety analysis if the disease/condition exacerbated during the study.
* Peptic Ulcer disease: Subjects with clinically significant peptic ulcer disease that is uncontrolled.
* Hypertension: Subjects with clinically significant hypertension that is uncontrolled.
* Cancer: Subjects with carcinoma that has not been in complete remission for at least 5 years. Carcinoma in situ of the cervix, squamous cell carcinoma and basal cell carcinoma of the skin would not be excluded if the subject has been considered cured within 5 years since diagnosis.
* Drug/food allergy: Subjects with a history of hypersensitivity to any of the study medications (e.g., beta-agonists, corticosteroid) or components of the inhalation powder (e.g., lactose, magnesium stearate). In addition, subjects with a history of severe milk protein allergy that, in the opinion of the study physician, contraindicates the subject's participation will also be excluded.
* Drug/alcohol abuse: Subjects with a known or suspected history of alcohol or drug abuse within the last 2 years
* Medication prior to spirometry: Subjects who are medically unable to withhold their albuterol/salbutamol and/or their ipratropium for the 4-hour period required prior to spirometry testing at each study visit.
* Additional medication: Unable to stop using certain medications such as bronchodilators and corticosteroids for the protocol-specified times prior to Visit 1 (the Investigator will discuss the specific medications)
* Oxygen therapy: Subjects receiving treatment with long-term oxygen therapy (LTOT) or nocturnal oxygen therapy required for greater than 12 hours a day. Oxygen prn use (i.e., ≤12 hours per day) is not exclusionary.
* Sleep apnea: Subjects with clinically significant sleep apnea who require use of continuous positive airway pressure (CPAP) device or non-invasive positive pressure ventilation (NIPPV) device.
* Pulmonary rehabilitation: Subjects who have participated in the acute phase of a Pulmonary Rehabilitation Program within 4 weeks prior to Screening (Visit 1) or who will enter the acute phase of a Pulmonary Rehabilitation Program during the study. Subjects who are in the maintenance phase of a Pulmonary Rehabilitation Program are not excluded.
* Non-compliance: Subjects at risk of non-compliance, or unable to comply with the study procedures. Any infirmity, disability, or geographic location that would limit compliance for scheduled visits.
* Questionable validity of consent: Subjects with a history of psychiatric disease, intellectual deficiency, poor motivation or other conditions that will limit the validity of informed consent to participate in the study.
* Prior use of study medication/other investigational drugs: Subjects who have previously been randomized to treatment with GW642444 Inhalation Powder in the B2C111045 study, randomized to treatment in the HZC111348 study or have participated in the HZC112207, HZC102871, HZC102970, or HZC110946 studies. Subjects who have received an investigational drug within 30 days of entry into this study (Screening), or within 5 drug half-lives of the investigational drug, whichever is longer.
* Affiliation with investigator site: Study investigators, sub-investigators, study coordinators, employees of a participating investigator or immediate family members of the aforementioned are excluded from participating in this study.
D: Inclusion Criteria:

* Type of subject: Outpatient
* Informed consent: Subjects must give their signed and dated written informed consent to participate
* Gender: Male subjects or female subjects. Female subjects must be post-menopausal or using a highly effective method for avoidance of pregnancy. The decision to include or exclude women of childbearing potential may be made at the discretion of the investigator in accordance with local practice in relation to adequate contraception.
* Age: \>=40 years of age at Screening (Visit 1)
* COPD diagnosis: Subjects with a clinical history of COPD in accordance with the definition by the American Thoracic Society/European Respiratory Society: COPD is a preventable and treatable disease characterized by airflow limitation that is not fully reversible. The airflow limitation is usually progressive and is associated with an abnormal inflammatory response of the lungs to noxious particles or gases, primarily caused by cigarette smoking. Although COPD affects the lungs, it is also associated with significant systemic consequences.
* Severity of disease: Subjects with a measured post-albuterol (salbutamol) FEV1/ Forced Vital Capacity (FVC) ratio of \<=0.70 and FEV1 \>=30 to \<=70 percent of predicted normal values using Global Lung Function Initiative 2012 reference equations at Screening (Visit 1).
* Tobacco use: Subjects with a current or prior history of \>=10 pack-years of cigarette smoking at Screening (Visit 1). Former smokers are defined as those who have stopped smoking for at least 6 months prior to Visit 1.
* History of COPD exacerbation: A documented history (e.g., medical record verification) of at least one COPD exacerbation in the 12 months prior to Screening (Visit 1) that required either systemic/oral corticosteroids, antibiotics and/or hospitalization.
* Current symptoms of COPD: A Subject Diary combined symptom score (combination of breathlessness, cough, sputum, and night time awakenings requiring treatment with albuterol \[salbutamol\]) of \>=4 on at least 5 of the 7 days immediately preceding Visit 2 (Randomization)
* QTc Criteria: QTc \<450 msec or QTc \<480 msec for patients with bundle branch block.

Exclusion Criteria:

* Pregnancy: Women who are pregnant or lactating or are planning on becoming pregnant during the study.
* Asthma: Subjects with a current diagnosis of asthma. (Subjects with a prior history of asthma are eligible if they have a current diagnosis of COPD).
* Other respiratory disorders: Subjects with alpha1-antitrypsin deficiency as the underlying cause of COPD as the underlying cause of COPD, active tuberculosis, lung cancer, bronchiectasis (Note: focal bronchiectasis is not exclusionary), sarcoidosis, pulmonary fibrosis (Note: focal fibrotic pulmonary lesions are not exclusionary), primary pulmonary hypertension, interstitial lung diseases, or other active pulmonary diseases.
* Lung resection: Subjects with lung volume reduction surgery within the 12 months prior to Screening (Visit 1).
* Chest X-ray (or computed tomography \[CT\] scan): Subjects with a chest X-ray (or CT scan) that reveals evidence of clinically significant abnormalities not believed to be due to the presence of COPD. A chest X-ray must be taken at Screening (Visit 1) if a chest X-ray or CT scan is not available within 1 year prior to Screening (Visit 1).
* Hospitalization: Subjects who are hospitalized due to poorly controlled COPD that has not resolved at least 4 weeks prior to Screening (Visit 1) and at least 6 weeks following the last dose of systemic corticosteroids.
* Poorly controlled COPD: Subjects with poorly controlled COPD, defined as the occurrence of any of the following in the 6 weeks prior to Screening (Visit 1): Acute worsening of COPD that is managed by subject with systemic corticosteroids or antibiotics or that requires treatment prescribed by a physician.
* Lower respiratory tract infection: Subjects with lower respiratory tract infection that required the use of antibiotics within 6 weeks prior to Screening (Visit 1).
* COPD exacerbation/lower respiratory tract infection during the Run-In Period: Subjects who experience a moderate/severe COPD exacerbation (As per definition of "COPD Exacerbations and Pneumonia" in protocol) and/or a lower respiratory tract infection (including pneumonia) during the Run-In Period.
* Abnormal, clinically significant laboratory finding: Subjects who have an abnormal clinical significant finding in any liver chemistry test at Screening (Visit 1) or upon repeat prior to randomization.
* Abnormal, clinically significant 12-lead ECG at Screening (Visit 1): Subjects who have an abnormal, clinically significant 12-Lead electrocardiogram (ECG) finding at Screening (Visit 1) or upon repeat prior to randomization.
* Other diseases/abnormalities: Subjects with historical or current evidence of clinically significant and unstable disease such as cardiovascular (e.g., patients requiring implantable cardioverter-defibrillators (ICD), pacemaker requiring a rate set \>60 beats per minute (bpm), uncontrolled hypertension, New Your Heart Association Class IV, known left ventricular ejection fraction \<30 percent) neurological, psychiatric, renal, hepatic, immunological, endocrine (including uncontrolled diabetes or thyroid disease), peptic ulcer disease, or hematological abnormalities.
* Liver disease: Subjects who have unstable liver disease (as defined by the presence of ascites, encephalopathy, coagulopathy, hypoalbuminaemia, oesophageal or gastric varices or persistent jaundice), cirrhosis, known biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones). Note: Subjects with chronic stable hepatitis B and C are eligible if the subject otherwise meets entry criteria (e.g., presence of hepatitis B surface antigen or positive hepatitis C test result within 3 months of screening). However, subjects with chronic stable hepatitis B are excluded if significant immunosuppressive or cytotoxic agents are administered, due to risk of hepatitis B reactivation, unless the hepatitis B antivirals are administered as outlined in the Chronic Hepatitis B American Association for the Study of Liver Diseases' (AASLD) Practice Guidelines.
* Cancer: Subjects with carcinoma that has not been in complete remission for at least 5 years. Carcinoma in situ of the cervix, squamous cell carcinoma and basal cell carcinoma of the skin would not be excluded if the subject has been considered cured within 5 years since diagnosis.
* Contraindications: Subjects with a history of allergy or hypersensitivity to any of the study medications (e.g. beta-agonists, corticosteroids) or components of the inhalation powder (e.g., lactose, magnesium stearate). In addition, subjects with a history of severe milk protein allergy that, in the opinion of the investigator, contraindicates the subject's participation will also be excluded.
* Drug/alcohol abuse: Subjects with a known or suspected history of alcohol or drug abuse within the last 2 years
* Medication prior to spirometry: Subjects who are medically unable to withhold their albuterol (salbutamol) or their ipratropium bromide for the 4-hour period required prior to spirometry testing at each study visit.
* Additional medication: Use of certain medications such as bronchodilators and corticosteroids for the protocol-specific times prior to Visit 1 (the Investigator will discuss the specific medications)"
* Oxygen therapy: Subjects receiving treatment with long-term oxygen therapy (LTOT) or nocturnal oxygen therapy required for greater than 12 hours a day. Oxygen as needed (prn) use (i.e., \<=12 hours per day) is not exclusionary.
* Sleep apnea: Subjects with clinically significant sleep apnea who require use of continuous positive airway pressure (CPAP) device or non-invasive positive pressure ventilation (NIPPV).
* Pulmonary rehabilitation: Subjects who have participated in the acute phase of a Pulmonary Rehabilitation Program within 4 weeks prior to Screening (Visit 1) or who will enter the acute phase of a Pulmonary Rehabilitation Program during the study. Subjects who are in the maintenance phase of a Pulmonary Rehabilitation Program are not excluded.
* Non-Compliance during Run-In Period: Failure to demonstrate adequate compliance defined as completion of Diary Card (completed all diary entries on at least 5 of the last 7 consecutive days), the ability to withhold anti-COPD medications and to keep clinic visit appointments. In addition, subjects must have recorded the Run-In study medication use on at least 5 of the last 7, consecutive days of the Run-In period to continue in the study.
* Potential of non-compliance: Subjects at risk of non-compliance, or unable to comply with the study procedures. Any infirmity, disability, or geographic location that would limit compliance for scheduled visits.
* Questionable validity of consent: Subjects with a history of psychiatric disease, intellectual deficiency, poor motivation or other conditions that will limit the validity of informed consent to participate in the study.
* Prior use of study medication/other investigational drugs: Subjects who have received an investigational drug within 30 days of entry into this study (Screening), or within 5 drug half-lives of the investigational drug, whichever is longer. Note: Subjects who participated in a previously completed study and/or were excluded/ withdrawn from an ongoing study that included/includes FF/VI and/or VI are eligible to participate in the current study, if they have not received investigational study medication within 30 days of Screening (Visit 1).
* Affiliation with investigator site: Study investigators, sub-investigators, study coordinators, employees of a participating investigator or immediate family members of the aforementioned are excluded from participating in this study.

Answer: D