Medical Oncology in Turkey — Second Opinion, Tumor Board, and Systemic Treatment at Eyeglow Istanbul
Multi-disciplinary tumor board review, second opinion for solid tumors and hematological cancers, and systemic treatment administration — chemotherapy, immunotherapy (checkpoint inhibitors), targeted therapy, and hormone therapy — coordinated through Eyeglow Health's accredited partner oncology network at JCI-aligned hospitals in Istanbul. ESMO, NCCN, and ASCO guideline-aligned. Molecular profiling (NGS) available. Honest disclosure: treatment intent (curative versus disease-control) is stated explicitly in every written care plan.
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What is medical oncology?
Medical oncology is the medical specialty responsible for diagnosis staging confirmation and non-surgical treatment of cancer — chemotherapy, immunotherapy, targeted therapy, and hormone therapy. The medical oncologist works alongside surgical oncologists and radiation oncologists in a multi-disciplinary tumor board (MDT) to determine the most appropriate treatment for each patient. At Eyeglow Health, medical oncology is coordinated through our accredited partner network of board-certified medical oncologists at JCI-aligned hospitals in Istanbul, following ESMO, NCCN, and ASCO practice guidelines.
A second opinion — independent review of your pathology, staging, and proposed treatment plan — changes the recommended management in 10–30% of cases in published oncology literature. We offer full second-opinion coordination including tumor board presentation and a written comparison of your current plan versus the board recommendation, returned within 3–5 working days of complete document receipt.
From second opinion to treatment completion
- 01
Initial consultation + document review
You share your pathology reports (biopsy, histology, receptor status — ER/PR/HER2 for breast, microsatellite instability status for colorectal, EGFR/ALK/ROS1 for lung), imaging (CT, PET-CT, MRI, bone scan), prior treatment history (chemotherapy regimens received, doses, response, toxicity), current medications, performance status (ECOG), and comorbidities. Our oncology coordinator reviews completeness of staging workup and flags any gaps. The partner oncologist receives a full pre-clinic summary before your consultation.
- 02
Oncologist assessment + staging confirmation
The partner board-certified medical oncologist reviews your case in detail: confirms TNM staging and AJCC classification, assesses histological subtype and molecular markers (receptor status, mutation profile, microsatellite instability, TMB where relevant), and identifies whether your current or proposed treatment plan aligns with ESMO, NCCN, or ASCO guidelines for your tumor type and stage. If additional staging is needed — PET-CT, CT-guided biopsy, molecular profiling by next-generation sequencing (NGS) — the oncologist coordinates this at the partner hospital before final assessment.
- 03
Multi-disciplinary tumor board presentation
Your case is presented at the partner hospital multi-disciplinary tumor board (MDT/MTB) per NCCN standard — the same format required by Joint Commission International (JCI). The tumor board includes the medical oncologist, radiation oncologist, relevant surgical oncologist (hepatobiliary, thoracic, colorectal, breast, urological as applicable), diagnostic radiologist, and pathologist. The board reaches a consensus recommendation. For complex or rare tumors, a second international tumor board opinion can be arranged. This is the standard of care for solid tumor management — individual physician assessment without MDT is not our practice.
- 04
Written care plan + treatment pathway decision
You receive a written care plan within 3–5 working days of your tumor board: confirmed staging and pathology interpretation, recommended treatment intent (curative-intent, neoadjuvant, adjuvant, palliative/disease-control — clearly stated), recommended systemic therapy regimen with drug names, doses, cycle schedule, and ESMO/NCCN evidence level, expected duration, monitoring schedule (imaging, lab markers), side-effect profile specific to your regimen, and palliative care and psycho-oncology support pathway. If the tumor board determines the most appropriate treatment is in your home country (for example, a highly specialised CAR-T programme or a clinical trial you have eligibility for at your local centre), we state this in writing rather than proceed with treatment that serves our business interest over your clinical interest.
- 05
Treatment coordination and administration
If you proceed with treatment in Istanbul: treatment is delivered at the partner JCI-aligned hospital by your named medical oncologist and nursing team. Pre-chemotherapy workup: baseline labs (CBC, CMP, LFTs, renal function, tumour markers), cardiology clearance (baseline ECHO for anthracycline regimens), pharmacy review. Chemotherapy administration takes place in a dedicated oncology day unit (IV access, antiemetic pre-medication, vital signs monitoring, nurse-to-patient ratio per national standards). Immunotherapy infusions include standard pre-medication and extended post-infusion observation for immune-related adverse events (irAEs) — your care team is familiar with irAE recognition and management (colitis, pneumonitis, endocrinopathy).
- 06
Response assessment and ongoing coordination
Response assessment per RECIST 1.1 criteria (CT/MRI at defined intervals). Tumour marker monitoring (CEA for colorectal, CA-125 for ovarian, PSA for prostate, CA 15-3 for breast). Structured management of treatment toxicity — chemotherapy dose modifications per published criteria (CTCAE grading), immunotherapy irAE protocols, supportive care (growth factors, anti-emetics, neuropathy management). At completion or disease progression, a formal re-presentation to the multi-disciplinary tumor board determines next-line options. Palliative care and psycho-oncology support are offered at every stage — these are not failure states but part of comprehensive cancer care.
Chemotherapy vs Immunotherapy vs Targeted Therapy vs Hormone Therapy
The right systemic therapy depends on cancer type, molecular profile, prior treatment history, and patient performance status. Here is how the four main categories differ:
| Aspect | Chemotherapy | Immunotherapy (checkpoint inhibitors) | Targeted therapy (TKIs / mAbs) | Hormone therapy |
|---|---|---|---|---|
| Mechanism | Cytotoxic — kills rapidly dividing cells (cancer and some normal cells) | Immune checkpoint release — anti-PD-1/PD-L1 (nivolumab, pembrolizumab, atezolizumab), CTLA-4 (ipilimumab) unblock T-cell anti-tumour response | Molecular-matched — TKIs (erlotinib, osimertinib, imatinib, lapatinib), monoclonal antibodies (trastuzumab, cetuximab) against specific oncogenic driver | Endocrine deprivation — aromatase inhibitors (anastrozole, letrozole), anti-androgens (enzalutamide, abiraterone) for hormone-sensitive tumors |
| Main indications | Most solid tumor types; first-line and adjuvant in many cancers; hematological malignancies | Solid tumors with PD-L1 expression or MSI-H/dMMR — melanoma, NSCLC, HNSCC, urothelial, RCC, gastric, CRC MSI-H; expanding broadly | EGFR-mutant NSCLC, ALK-positive NSCLC, HER2+ breast, BCR-ABL+ CML, BRAF V600 melanoma, RET-altered tumors — requires molecular profiling | ER+ HER2- breast cancer (adjuvant + metastatic), castration-sensitive and -resistant prostate cancer |
| Side-effect profile | Myelosuppression (neutropenia, thrombocytopenia), nausea/vomiting, alopecia, mucositis, neuropathy (taxane, platinum), cardiotoxicity (anthracyclines) | Immune-related adverse events (irAEs) — colitis (3–10%), pneumonitis (1–5%), endocrinopathies (thyroid, pituitary), hepatitis, dermatitis; potentially life-threatening (grade 3–4 in 15% combination) | Regimen-specific: TKIs — rash, diarrhoea, hepatotoxicity, QT prolongation; anti-HER2 — cardiac monitoring required; VEGFR — hypertension, wound healing delay | Vasomotor symptoms (hot flushes), bone density loss (osteoporosis), sexual dysfunction, fatigue; aromatase inhibitors: arthralgias |
| Requires biomarker testing | No (broad activity), but HER2/ER/PR status informs regimen choice in breast | PD-L1 IHC (TPS/CPS), MSI/MMR status, TMB — some indications require PD-L1 ≥50% (pembrolizumab 1L NSCLC) | Yes — molecular profiling mandatory (NGS or specific PCR/FISH for each target) | Yes — hormone receptor status (ER/PR IHC) + HER2 status mandatory |
| Typical administration | IV infusion cycles (every 2–3 weeks, 3–6 months typical adjuvant), day unit, pre-medication required | IV infusion every 2–4 or 6 weeks; extended post-infusion observation; irAE monitoring protocol | Oral daily (most TKIs); some IV (cetuximab, trastuzumab every 1–3 weeks) | Oral daily (anastrozole, letrozole, tamoxifen, enzalutamide) or monthly/quarterly IM injection (LHRH agonists) |
Personalised pricing
Every treatment plan is priced individually after your consultation. Request a written, all-inclusive quote — clear, itemised, and with no obligation.
Request a written quoteWhat's included in your oncology coordination
Included in coordination
- Initial oncology consultation with board-certified medical oncologist (partner network)
- Document review and staging workup gap assessment
- Multi-disciplinary tumor board (MDT) case presentation
- Written care plan: confirmed staging, treatment intent (curative/palliative clearly stated), regimen, ESMO/NCCN evidence level, monitoring schedule
- Side-effect profile and patient information document for your specific regimen
- Palliative care and psycho-oncology pathway information (included as standard, not presented as failure)
- Coordination of PET-CT, CT staging, or NGS molecular profiling at partner hospital if required
- Treatment administration at JCI-aligned partner hospital (day unit, IV access, nursing care)
- Ongoing toxicity management and dose modification per CTCAE grading criteria
- Response assessment coordination (RECIST 1.1, tumour markers)
- Multilingual care coordinator — from first contact to response assessment
- Complication insurance policy (Türkiye Ministry of Health certified, covers surgical complications including infection, retreatment, and emergency intervention up to package value)
Quoted separately
- Chemotherapy drug cost (quoted separately — depends on regimen, number of cycles, body surface area)
- Immunotherapy drug cost (pembrolizumab, nivolumab, atezolizumab, ipilimumab — high-cost agents quoted separately)
- Targeted therapy drug cost (TKIs and monoclonal antibodies quoted separately)
- Radiotherapy (radiation oncology is a separate discipline — coordinated through partner radiation oncology team if indicated by tumor board)
- Surgical oncology procedures (tumour resection, lymph node dissection — separate from medical oncology)
- Clinical trial participation (we assist with eligibility screening; clinical trial costs vary by protocol)
- Hotel and accommodation (quoted separately based on treatment duration)
- Flights to/from Istanbul
- Travel insurance (recommended — covers flight cancellation, baggage, non-surgical medical emergencies abroad; we coordinate referral if needed)
Is oncology coordination at Eyeglow Health right for you?
You may benefit from coordination if
- You have a confirmed cancer diagnosis and are seeking a second opinion on your pathology, staging, or proposed treatment plan from a different specialist team.
- You have a solid tumor (breast, colorectal, lung, prostate, stomach, ovarian, bladder, head and neck, kidney) or hematological malignancy (lymphoma, leukemia — consultation and coordination) and are exploring treatment options.
- Your molecular profiling result (NGS) shows a targetable driver mutation and you want assessment of approved targeted therapy options in Turkey.
- Your tumor has been determined to be PD-L1-expressing or MSI-H/dMMR and you are exploring immunotherapy eligibility.
- You are seeking treatment in Istanbul because wait times for treatment initiation are delaying your care at home — we can provide rapid staging confirmation and treatment commencement.
- You are interested in coordination of palliative systemic therapy or supportive cancer care.
Coordination through Eyeglow Health may not be appropriate if
- You are seeking CAR-T cell therapy, stem cell transplantation, or experimental early-phase clinical trials — these require highly specialised infrastructure (apheresis unit, haematology BMT programme, GCP-compliant trial site); we will refer you to appropriate centres rather than oversell our capabilities.
- You expect a "cure" guarantee — we cannot and will not make cure claims. Oncology treatment outcomes depend on cancer type, stage, molecular biology, patient factors, and biology of the tumour. We present honest evidence-based survival and response statistics for your specific diagnosis.
- You require proton beam therapy — this is not currently available in our partner network in Istanbul; we will direct you to appropriate European proton centres if indicated.
- Your home-country oncology team has offered standard-of-care treatment that is available to you without significant delay — if your local care is appropriate and accessible, we will say so.
Disclaimer. Information on this page is consistent with ESMO Clinical Practice Guidelines, NCCN Guidelines (National Comprehensive Cancer Network), and ASCO Practice Guidelines. Statistics cited are sourced from peer-reviewed published trials and registry data. Oncology outcomes are highly individual — survival statistics represent population medians and do not predict individual outcomes. Treatment decisions require assessment by a board-certified medical oncologist with access to your full medical records.
What every oncology patient should understand
Oncology carries the highest YMYL stakes of any medical field. We communicate the following plainly — the same way our partner oncologist does in your first consultation:
Honest oncology outcome disclosure — treatment aims to control, not always to cure
For many cancer diagnoses, treatment intention is disease control, response, and quality of life extension — not cure. ESMO and NCCN distinguish curative-intent from palliative/disease-control intent treatment in all guideline statements. We state treatment intent explicitly in every care plan. Example: stage IV non-small cell lung cancer with EGFR mutation treated with osimertinib has a median progression-free survival of approximately 18 months (FLAURA trial) — this is a meaningful, evidence-based outcome, but it is not a cure. We will not describe it as one.
Chemotherapy toxicity — myelosuppression, nausea, neuropathy, cardiotoxicity
Chemotherapy causes clinically significant side effects in a majority of patients. Myelosuppression (neutropenia) occurs in 30–60% depending on regimen — febrile neutropenia risk is 5–20% in intensive regimens and requires prophylactic growth factor support (G-CSF) or dose modification. Anthracycline regimens (doxorubicin, epirubicin) carry a cumulative cardiotoxicity risk — baseline and serial ECHO monitoring is required; lifetime cumulative dose thresholds (e.g. doxorubicin <450 mg/m²) are strictly observed. Platinum-taxane combinations (NSCLC, ovarian, breast) carry peripheral neuropathy risk (30–50%); dose modification or dose delay is part of standard toxicity management per CTCAE grading criteria.
Immunotherapy — immune-related adverse events (irAEs) can be severe
Immune checkpoint inhibitors (anti-PD-1, PD-L1, CTLA-4) cause immune-related adverse events (irAEs) in 15–90% of patients depending on agent and combination. Grade 1–2 irAEs (manageable) occur in 60–70%; grade 3–4 (severe, potentially life-threatening) occur in 15–20% with combination ipilimumab + nivolumab. Key irAEs: immune colitis (diarrhoea, abdominal pain — requires early steroid intervention; severe cases require infliximab), pneumonitis (breathlessness, cough — can be life-threatening; immediate high-dose steroids + hold immunotherapy), endocrinopathy (thyroid dysfunction in 5–10%, hypophysitis in 1–5%), hepatitis, dermatitis (including Steven-Johnson syndrome, rare), nephritis. Our partner team has irAE recognition and management protocols in place.
Targeted therapy — molecular profiling required, resistance inevitable for most agents
Targeted therapies require documented presence of the molecular target (driver mutation or receptor overexpression) — prescribing off-target is not evidence-based. For most approved TKIs, acquired resistance develops (median 12–18 months for EGFR TKIs, 6–12 months for BRAF inhibitors in melanoma) and requires next-line therapy reassessment. Molecular profiling by NGS is required at diagnosis and often at progression to identify resistance mechanisms (e.g. T790M EGFR for osimertinib eligibility). Our partner oncologist ensures profiling is adequate before recommending targeted therapy — prescribing based on incomplete molecular data is not our practice.
Palliative care is part of good oncology, not a final resort
Per ASCO and ESMO consensus guidelines, early integration of palliative care alongside oncological treatment improves quality of life and in some studies (Temel 2010, NEJM) overall survival. We include palliative care and psycho-oncology information at every stage of the care plan — for the patient, and for family members as caregivers. Hospice referral is discussed openly when curative or life-prolonging treatment is no longer in the patient's interest — this conversation, done well, is an act of care, not abandonment.