Please assess the completion status of the following clinical trial:

Trial Title: Enterotoxigenic Escherichia Coli (ETEC) ETVAX Vaccine Trial in Bangladesh

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE1/PHASE2
- Number of Arms: 21.0

Eligibility Criteria:
Adults~Inclusion Criteria:~1. Healthy male or female adults 18-45 years old, inclusive~2. General good health as determined by the screening evaluation no greater than 7days before enrollment and vaccination~3. Properly informed about the study, able to understand it and sign or thumb print the informed consent form~4. Available for the entire period of the study and reachable by study staff throughout the entire follow-up period~5. Females of childbearing potential who are willing to take a urine pregnancy test at screening and before the second vaccination. Pregnancy tests must be negative before each vaccination. Females of childbearing potential must agree to use an efficacious hormonal or barrier method of birth control during the study. Abstinence is also acceptable.~6. Informed Consent (signature or thumb print provided, with witness signature)~Exclusion Criteria:~1. Presence of any significant known systemic disorder (cardiovascular, pulmonary, hepatic, renal, gastrointestinal, endocrine, immunological, dermatological, neurological, cancer or autoimmune disease) as determined by medical history and/or physical examination which would endanger the participant's health or is likely to result in non-conformance to the protocol.~2. History of congenital abdominal disorders, intussusception, abdominal surgery or any other congenital disorder or presence of a significant medical condition that in the opinion of the Investigator precludes participation in the study. Known or suspected impairment of immunological function based on medical history and physical examination. Clinical evidence of active gastrointestinal illness and acute disease at the time of enrollment~3. Screening positive with hepatitis B antigen and/or hepatitis C antibodies~4. Participation in research involving another investigational product (defined as receipt of investigational product) during the 30 days before planned date of first vaccination or concurrently participating in another clinical study at any time during the study period, in which the participant has been or will be exposed to an investigational or a non-investigational product~5. Clinically significant abnormalities in screening hematology or serum chemistry, as determined by the Study Physician~6. History of febrile illness within 48 hours prior to vaccination and fever at the time of immunization (fever is defined as a temperature ≥ 37.5 C (99.5 F) on axillary, oral, or tympanic measurement)~7. Prior receipt of any cholera (e.g., Dukoral, Shanchol) or ETEC vaccine~8. Prior receipt of a blood transfusion or blood products, including immunoglobulins~9. Evidence of current illicit drug use or drug dependence~10. Current use of iron or zinc supplements within the past 7 days; current use of antacids (H2 blockers, omeprazole, over-the-counter (OTC) agents) or immunosuppressive drug~11. Any condition which, in the opinion of the investigator, might jeopardize the safety of study participants or interfere with the evaluation of the study objectives~12. Receipt of antimicrobial drugs for any reason within 14 days before vaccination~13. History of diarrhea during the 7 days before vaccination (see protocol definition of diarrhea)~14. Culture positive for ETEC, Shigella, V. Cholerae or Salmonella within 7 days before vaccination.~15. Acute disease at the time of enrollment or 3 days prior to enrollment~16. History of chronic administration (defined as more than 14 days) of immunosuppressant medications, including corticosteroids.~Children, Toddlers and Infants Inclusion Criteria~1. Healthy male or female infants/toddlers/children ages:~   * Part B: \>24 and ≤59 months old at the time of enrollment~  * Part C: ≥12 and \<24 months old at the time of enrollment~  * Part D: ≥6 and \<12 months at the time of enrollment~2. General good health as determined by the screening evaluation no greater than 7 days before enrollment and vaccination~3. Parent properly informed about the study, able to understand it and sign or thumb print the informed consent form~4. Parent and child available for the entire study period of the study and reachable by study staff throughout the entire follow-up period~5. Informed Consent (signature or thumb of parent, with signature of witness, provided)~Exclusion Criteria~1. Presence of any significant known systemic disorder (cardiovascular, pulmonary, hepatic, renal, gastrointestinal, endocrine, immunological, dermatological, neurological, cancer or autoimmune disease) as determined by medical history and/or physical examination which would endanger the participant's health or is likely to result in non-conformance to the protocol.~2. History of congenital abdominal disorders, intussusception, abdominal surgery or any other congenital disorder or presence of a significant medical condition that in the opinion of the Investigator precludes participation in the study. Known or suspected impairment of immunological function based on medical history and physical examination. Clinical evidence of active gastrointestinal illness and acute disease at the time of enrollment~3. Screening positive with hepatitis B antigen and/or hepatitis C antibodies~4. Participation in research involving another investigational product (defined as receipt of investigational product) during the 30 days before planned date of first vaccination or concurrently participating in another clinical study at any time during the study period, in which the participant has been or will be exposed to an investigational or a non-investigational product~5. Clinically significant abnormalities in screening hematology or serum chemistry, as determined by the Study Physician~6. History of febrile illness within 48 hours prior to vaccination and fever at the time of immunization (fever is defined as a temperature ≥ 37.5 C (99.5 F) on axillary, oral, or tympanic measurement)~7. Prior receipt of any cholera (e.g., Dukoral, Shanchol) or ETEC vaccine~8. Prior receipt of a blood transfusion or blood products, including immunoglobulins~9. Current use of iron or zinc supplements within the past 7 days; current use of antacids (H2 blockers, omeprazole, OTC agents) or immunosuppressive drug~10. Any condition which, in the opinion of the investigator, might jeopardize the safety of study participants or interfere with the evaluation of the study objectives~11. Receipt of antimicrobial drugs for any reason within 14 days before vaccination~12. History of diarrhea during the 7 days before vaccination (see Protocol definition of diarrhea))~13. Culture positive for ETEC, Shigella, V. cholerae, Salmonella or Rotavirus (the latter for all children \<5 years of age) within 7 days of vaccination~14. Acute disease at the time of enrollment or 3 days prior to enrollment~15. Known or suspected impairment of immunological function based on medical history and physical examination~16. Participant's parents/guardians not able, available or willing to accept active weekly follow-up by the study staff~17. History of chronic administration (defined as more than 14 days) of immunosuppressant medications, including corticosteroids. Infants on inhaled or topical steroids may be permitted to participate in the study~18. Any medical condition in the child/infant that, in the judgment of the investigator, would interfere with or serves as a contraindication to protocol adherence or a participant's parents' ability to give informed consent~19. Medically significant malnutrition, defined as moderate malnutrition (wt-for-ht z-score between -3.0 and -2.0) and severe malnutrition (wt-for-ht z-score \<-3.0 or edema)

- Gender: ALL
- Minimum Age: 6 Months
- Maximum Age: 45 Years
- Healthy Volunteers: t

Study Arms:
- Adult: ETVAX (Full) (Type: EXPERIMENTAL): Adult arm (18-45 year olds) receiving the full dose of ETVAX vaccine (10\^11 inactivated E. coli bacteria) added to bicarbonate buffer solution administered orally on Day 0 and 14
- Adult: ETVAX (Full) + 10 ug dmLT (Type: EXPERIMENTAL): Adult arm (18-45 year olds) receiving the full dose of ETVAX vaccine (10\^11 inactivated E. coli bacteria) with 10 ug dmLT added to bicarbonate buffer solution administered orally on Day 0 and 14
- Adult: Placebo (Type: PLACEBO_COMPARATOR): Adult arm (18-45 year olds) receiving a placebo on days 0 and 14
- 24-59 months: ETVAX (1/4) (Type: EXPERIMENTAL): 24-59 month old children receiving a quarter adult dose (2.5 x 10\^10 inactivated E. coli bacteria) of ETVAX vaccine in bicarbonate buffer solution administered orally on Day 0 and 14
- 24-59 months: ETVAX (1/2) (Type: EXPERIMENTAL): 24-59 month old children receiving a half adult dose of ETVAX vaccine (5 x 10\^10 inactivated E. coli bacteria) in bicarbonate buffer solution administered orally on Day 0 and 14
- 24-59 months: ETVAX (full) (Type: EXPERIMENTAL): 24-59 month old children receiving a full adult dose of ETVAX vaccine (10\^11 inactivated E. coli bacteria) in bicarbonate buffer solution administered orally on Day 0 and 14
- 24-59 months: ETVAX (1/2) + 2.5 ug dmLT (Type: EXPERIMENTAL): 24-59 month old children receiving a half adult dose of ETVAX vaccine (5 x 10\^10 inactivated E. coli bacteria) plus 2.5 ug dmLT in bicarbonate buffer solution administered orally on Day 0 and 14
- 24-59 months: ETVAX (1/2) + 5 ug dmLT (Type: EXPERIMENTAL): 24-59 month old children receiving a half adult dose of ETVAX vaccine (5 x 10\^10 inactivated E. coli bacteria) plus 5 ug dmLT in bicarbonate buffer solution administered orally on Day 0 and 14
- 24-59 months: ETVAX (1/2) + 10 ug dmLT (Type: EXPERIMENTAL): 24-59 month old children receiving a half adult dose of ETVAX vaccine (5 x 10\^10 inactivated E. coli bacteria) plus 10 ug dmLT in bicarbonate buffer solution administered orally on Day 0 and 14
- 24-59 months: Placebo (Type: PLACEBO_COMPARATOR): 24-59 month old children receiving a placebo of bicarbonate buffer solution administered orally on Day 0 and 14
- 12-23 months: ETVAX (1/4) (Type: EXPERIMENTAL): 12-23 month old children receiving a quarter adult dose of ETVAX vaccine (2.5 x 10\^10 inactivated E. coli bacteria) in bicarbonate buffer solution administered orally on Day 0 and 14
- 12-23 months: ETVAX (1/2) (Type: EXPERIMENTAL): 12-23 month old children receiving a half adult dose of ETVAX vaccine (5 x 10\^10 inactivated E. coli bacteria) in bicarbonate buffer solution administered orally on Day 0 and 14
- 12-23 months: ETVAX (1/2) + 2.5 ug dmLT (Type: EXPERIMENTAL): 12-23 month old children receiving a half adult dose of ETVAX vaccine (5 x 10\^10 inactivated E. coli bacteria) plus 2.5 ug dmLT in bicarbonate buffer solution administered orally on Day 0 and 14
- 12-23 months: ETVAX (1/2) + 5 ug dmLT (Type: EXPERIMENTAL): 12-23 month old children receiving a half adult dose of ETVAX vaccine (5 x 10\^10 inactivated E. coli bacteria) plus 5 ug dmLT in bicarbonate buffer solution administered orally on Day 0 and 14
- 12-23 months: Placebo (Type: PLACEBO_COMPARATOR): 12-23 month old children receiving a placebo of bicarbonate buffer solution administered orally on Day 0 and 14
- 6-11 months: ETVAX (1/8) (Type: EXPERIMENTAL): 6-11 month old children receiving an eighth of an adult dose of ETVAX vaccine in bicarbonate buffer solution administered orally on Day 0 and 14
- 6-11 months: ETVAX (1/4) (Type: EXPERIMENTAL): 6-11 month old children receiving a quarter of an adult dose of ETVAX vaccine (2.5 x 10\^10 inactivated E. coli bacteria) in bicarbonate buffer solution administered orally on Day 0 and 14
- 6-11 months: ETVAX (1/2) (Type: EXPERIMENTAL): 6-11 month old children receiving a half of an adult dose of ETVAX vaccine (5 x 10\^10 inactivated E. coli bacteria) in bicarbonate buffer solution administered orally on Day 0 and 14
- 6-11 months: ETVAX (1/4) + 2.5 ug dmLT (Type: EXPERIMENTAL): 6-11 month old children receiving a quarter of an adult dose of ETVAX vaccine (2.5 x 10\^10 inactivated E. coli bacteria) plus 2.5 ug dmLT in bicarbonate buffer solution administered orally on Day 0 and 14
- 6-11 month olds: ETVAX (1/4) + 5 ug dmLT (Type: EXPERIMENTAL): 6-11 month old children receiving a quarter of an adult dose of ETVAX vaccine (2.5 x 10\^10 inactivated E. coli bacteria) plus 5 ug dmLT in bicarbonate buffer solution administered orally on Day 0 and 14
- 6-11 month olds: Placebo (Type: PLACEBO_COMPARATOR): 6-11 month old children receiving a placebo of bicarbonate buffer solution administered orally on Day 0 and 14

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