Annotate ChEMBL service for drug indications

[andrewsu]

Example query: https://www.ebi.ac.uk/chembl/api/data/drug_indication.json?molecule_chembl_id=CHEMBL25

ChEMBL API docs: https://www.ebi.ac.uk/chembl/api/data/docs

Example output:

{
  "drug_indications": [
    {
      "drugind_id": 22713,
      "efo_id": "EFO:0000275",
      "efo_term": "atrial fibrillation",
      "indication_refs": [
        {
          "ref_id": "NCT00244426,NCT00496769,NCT00623779,NCT01830543,NCT02164864,NCT02387229,NCT02960126",
          "ref_type": "ClinicalTrials",
          "ref_url": "https://clinicaltrials.gov/search?id=%22NCT00244426%22OR%22NCT00496769%22OR%22NCT00623779%22OR%22NCT01830543%22OR%22NCT02164864%22OR%22NCT02387229%22OR%22NCT02960126%22"
        }
      ],
      "max_phase_for_ind": 3,
      "mesh_heading": "Atrial Fibrillation",
      "mesh_id": "D001281",
      "molecule_chembl_id": "CHEMBL25",
      "parent_molecule_chembl_id": "CHEMBL25"
    },
    {
      "drugind_id": 22714,
      "efo_id": "EFO:0004277",
      "efo_term": "brain infarction",
      "indication_refs": [
        {
          "ref_id": "NCT00129805,NCT00202020,NCT00684515,NCT01995370,NCT03176498,NCT03186456",
          "ref_type": "ClinicalTrials",
          "ref_url": "https://clinicaltrials.gov/search?id=%22NCT00129805%22OR%22NCT00202020%22OR%22NCT00684515%22OR%22NCT01995370%22OR%22NCT03176498%22OR%22NCT03186456%22"
        }
      ],
      "max_phase_for_ind": 3,
      "mesh_heading": "Brain Infarction",
      "mesh_id": "D020520",
      "molecule_chembl_id": "CHEMBL25",
      "parent_molecule_chembl_id": "CHEMBL25"
    }
  ],
  "page_meta": {
    "limit": 20,
    "next": "/chembl/api/data/drug_indication.json?molecule_chembl_id=CHEMBL25&limit=20&offset=20",
    "offset": 0,
    "previous": null,
    "total_count": 106
  }
}

[andrewsu]

could be a relatively easy task based on #64...