human
Consider the following clinical note:
"62 year old female with diagnosis of locally advanced Stage 2B non-small cell lung cancer.
She is here with family to discuss her different treatment options. She was previously treated
with durvalumab starting 1/15/22 and discontinued treatment on 4/22/22. She has been jaundiced
for a week, has severe abdominal pain radiating in the back, unable to tolerate diet with 20lb weight loss.
She just underwent biopsy and stent placement. CT guided biopsy of left lower lobe lung nodule
revealed poorly differentiated non-small cell carcinoma, adenocarcinoma histology. Immunohistochemical staining
revealed moderate levels of PD-1. She had restaging scans that did not show distant disease.
Tumor markers elevated. No sins of infection. Denies any other symptoms. Past Medical History:     Obesity     Diabetes      Smoker      Hyperlipidemia      ECOG: 2"

Based on the above note, answer the following questions: Has this patient been treated with monoclonal antibodies? If so, which ones? Also, if so, when did treatment start and is it currently ongoing? Keep your answers short. 
gpt
--- Reasoning ---
1. Is the question multiple-choice question?
No
2. Is it implied multiple-choice question?
No
3. If two experts were independently asked the question, will the final answer be exactly the same?
Yes

--- Answer ---
grounded