Please assess the completion status of the following clinical trial:

Trial Title: Pharmacogenomics of GLP1 Receptor Agonists

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: SINGLE
- Phase: PHASE1
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~* Member of the Old Order Amish community in Lancaster County, Pennsylvania~* BMI: 18-40 kg/sq.m.~Exclusion Criteria:~* Known allergy to exenatide~* History of diabetes, random glucose \>200 mg/dL, or HbA1c \> 6.5%~* Significant debilitating chronic cardiac, hepatic, pulmonary, or renal disease or other diseases that the investigator judges will make interpretation of the results difficult or increase the risk of participation~* Seizure disorder~* Pregnant by self-report or known pregnancy within 3 months of the start of study~* Currently breast feeding or breast feeding within 3 months of the start of the study~* Estimated glomerular filtration rate \<60 mL/min/1.73m2~* Hematocrit \<35%~* Liver function tests greater than 2 times the upper limit of normal~* Abnormal TSH~* History of pancreatitis or pancreatic cancer. Personal or family history of medullary carcinoma of the thyroid.

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

Study Arms:
- Homozygous for major alleles of GCGR and GIPR (Type: OTHER): Based on data in a genotype database, these individuals were homozygous for the wild type major alleles of both GCGR and GIPR.
- Homozygous for missense variant in GIPR (Type: OTHER): Based on data in a genotype database, these individuals were homozygous for rs1800437 a missense variant (p.E354Q) in the GIP receptor gene (GIPR).
- Homozygous for missense variant in GCGR (Type: OTHER): Based on data in a genotype database, these individuals were homozygous for rs1801483a missense variant (p.G40S) in the glucagon receptor gene (GCGR).

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