Please assess the completion status of the following clinical trial:

Trial Title: PENTACON Trial: Partial ENdothelial Trepanation in Addition to Anterior Lamellar Keratoplasty in keratoCONus

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

Eligibility Criteria:
Inclusion Criteria:~* age equal or above 18 years~* keratoconus as defined and classified by~  * presence of corneal thinning and protrusion on slit-lamp examination~ * topographic criteria according to KISA% index (\>100%)~ * mean corneal curvature map~* decreased best corrected visual acuity due to corneal scarring or contact lens intolerance~Exclusion Criteria:~* prior corneal surgery, cross linking, refractive surgery or other treatment modalities~* (localized) corneal thickness \< 200 µm~* associated corneal endothelial disease on specular microscopy as defined by:~  * \<1500 endothelial cells per mm2~ * polymegathism \> 0.3~ * pleomorphism \< 0.6 (all are measurements of endothelial dysfunction)~* gross ophthalmic pathology surpassing keratoconus as cause of decreased visual acuity~* keratoconus-like disease (keratoglobus, pellucid marginal degeneration)~* associated corneal anomalies (microcornea, macrocornea, buphthalmos, Peters syndrome, ICE-syndrome etc.)

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

Study Arms:
- PET (Type: EXPERIMENTAL): Partial endothelial trepanation in addition to anterior lamellar keratoplasty.~The endothelium en Descemet are paracentrally and circular loosened, but some tissue bridges are left in place. This 'island' is able to mould to the healthy donor curvature.
- DALK (Type: ACTIVE_COMPARATOR): Conventional DALK grafting procedure where the Big Bubble technique is used according to Anwar et al.

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